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1. A trait-based risk assessment of South African forest birds indicates vulnerability of hole-nesting species

Author:
Cooper, T.J.G.; Norris, K.J.; Cherry, M.I.
Source:
Biological conservation 2020 v.252 pp. 108827
ISSN:
0006-3207
Subject:
Trogon; bark; foraging; forest birds; forest types; habitats; introduced plants; land use change; models; montane forests; natural resources conservation; nesting; population dynamics; risk; risk assessment process; traditional medicine; trees; wildlife; South Africa
Abstract:
... Forests in South Africa are under threat from a variety of anthropogenic land use changes; however, the impacts of these changes on wildlife populations are poorly understood. To address this issue, a pan-European trait-based risk assessment framework was modified for use in South Africa. This framework allows the identification of habitats and species most at risk, as well as the most important t ...
DOI:
10.1016/j.biocon.2020.108827

2. Lethal Doses of Saponins from Quillaja saponaria for Invasive Slug Arion vulgaris and Non-Target Organism Enchytraeus albidus (Olygochaeta: Enchytraeidae)

Author:
Adomaitis, Mantas; Skujienė, Grita
Source:
Insects 2020 v.11 no.11
ISSN:
2075-4450
Subject:
Arion vulgaris; Enchytraeus albidus; Quillaja saponaria; adults; ambient temperature; aqueous solutions; bark; death; home gardens; invasive species; juveniles; lethal concentration 50; models; nontarget organisms; saponins; secondary metabolites; slugs; soaps; soil; terrestrial ecosystems; toxicity; trees
Abstract:
... The slug, Arion vulgaris Moquin-Tandon, 1855, is a serious pest in agriculture and private gardens. White worm, Enchytraeus albidus Henle, 1837, is an important model of decomposer organism in the terrestrial ecosystem. Saponins, which are secondary metabolites of plants, have previously been shown to have some molluscicidal effect. We investigated which doses of saponins are lethal to the slug, A ...
DOI:
10.3390/insects11110738

3. Applicability of semi-destructive method to derive allometric model for estimating aboveground biomass and carbon stock in the Hill zone of Bangladesh

Author:
Mahmood, Hossain; Siddique, Mohammad Raqibul Hasan; Islam, S. M. Zahirul; Abdullah, S. M. Rubaiot; Matieu, Henry; Iqbal, Md. Zaheer; Akhter, Mariam
Source:
Journal of forestry research 2020 v.31 no.4 pp. 1235-1245
ISSN:
1007-662X
Subject:
aboveground biomass; allometry; bark; branches; carbon; carbon sequestration; carbon sinks; climate change; forest inventory; forests; hills; leaves; models; national forests; tree and stand measurements; trees; wood density; Bangladesh
Abstract:
... Biomass estimation using allometric models is a nondestructive and popular method. Selection of an allometric model can influence the accuracy of biomass estimation. Bangladesh Forest Department initiated a nationwide forest inventory to assess biomass and carbon stocks in trees and forests. The relationship between carbon storage and sequestration in a forest has implications for climate change m ...
DOI:
10.1007/s11676-019-00881-5

4. Bark Thickness in Coast Redwood (Sequoia sempervirens (D.Don) Endl.) Varies According to Tree- and Crown Size, Stand Structure, Latitude and Genotype

Author:
Berrill, John-Pascal; O’Hara, Kevin L.; Kichas, Nickolas E.
Source:
Forests 2020 v.11 no.6
ISSN:
1999-4907
Subject:
Sequoia sempervirens; bark; canopy; coasts; drilling; equations; even-aged stands; forest management; forests; genetics; genotype; latitude; models; overstory; tree crown; tree trunk; trees; California
Abstract:
... Research Highlights: Bark thickness (BT) in coastal redwood (Sequoia sempervirens (D.Don) Endl.) varies in accordance with tree size, crown ratio, position within the canopy, height along the tree stem, genetic identity and latitude. However, current BT predictive equations do not account for such variability, leading to inaccurate BT estimations. We present improved BT models to increase the accu ...
DOI:
10.3390/f11060637

5. Restoration Treatments Improve Overstory Tree Resistance Attributes and Growth in a Ponderosa Pine/Douglas-Fir Forest

Author:
Crotteau, Justin S.; Keyes, Christopher R.
Source:
Forests 2020 v.11 no.5
ISSN:
1999-4907
Subject:
Pinus ponderosa; Pseudotsuga menziesii; bark; bark beetles; ecosystems; fire hazard; forests; fuels (fire ecology); longevity; models; overstory; prescribed burning; snow damage; tree growth; trees; Montana
Abstract:
... Research Highlights: This study provides much needed insight into the development of resistance to disturbance and growth dynamics of overstory trees in response to restoration-based fuel reduction, and will be useful to scientists and managers attempting to better grasp the relative merits of restoration treatment types. Background and Objectives: Restoration-based fuel reduction treatments are c ...
DOI:
10.3390/f11050574

6. Biogeography of fire regimes in western U.S. conifer forests: A trait‐based approach

Author:
Stevens, Jens T.; Kling, Matthew M.; Schwilk, Dylan W.; Varner, J. Morgan; Kane, Jeffrey M.
Source:
Global ecology and biogeography 2020 v.29 no.5 pp. 944-955
ISSN:
1466-822X
Subject:
Picea engelmannii; Pinus edulis; Pinus ponderosa; adults; bark; biogeography; coniferous forests; conifers; dry environmental conditions; ecosystems; fire regime; fire resistance; flammability; forest communities; forest fires; landscapes; models; niches; prediction; trees; Western United States
Abstract:
... AIM: Functional traits are a crucial link between species distributions and the ecosystem processes that structure those species’ niches. Concurrent increases in the availability of functional trait data and our ability to model species distributions present an opportunity to develop functional trait biogeography (i.e., the mapping of functional traits across space). Functional trait biogeography ...
DOI:
10.1111/geb.13079

7. Stem Damage Modifies the Impact of Wind on Norway Spruces

Author:
Snepsts, Guntars; Kitenberga, Mara; Elferts, Didzis; Donis, Janis; Jansons, Aris
Source:
Forests 2020 v.11 no.4
ISSN:
1999-4907
Subject:
Bayesian theory; Cervidae; Picea abies; bark; forest ecosystems; forest inventory; models; national forests; probability; soil types; stand age; stand density; tree height; trees; wind; wind damage
Abstract:
... Bark stripping caused by cervids can have a long-lasting negative effect on tree vitality. Such trees of low vitality might be more susceptible to other disturbances. The amplifying effects of disturbance interactions can cause significantly more damage to forest ecosystems than the individual effects of each disturbance. Therefore, this study aimed to assess the impact of bark stripping (stem dam ...
DOI:
10.3390/f11040463

8. Multisite evaluation of the 3-PG model for the highest phenotypic plasticity Eucalyptus clone in Brazil

Author:
Caldeira, Dany Roberta Marques; Alvares, Clayton Alcarde; Campoe, Otávio Camargo; Hakamada, Rodrigo Eiji; Guerrini, Iraê Amaral; Cegatta, Ítalo Ramos; Stape, José Luiz
Source:
Forest ecology and management 2020 v.462 pp. 117989
ISSN:
0378-1127
Subject:
Eucalyptus urophylla; allometry; bark; biomass; climate; data collection; ecophysiology; forest plantations; leaf area index; leaves; model validation; models; phenotypic plasticity; planting; prediction; soil; specific leaf area; stomatal conductance; tree and stand measurements; trees; wood density; Brazil
Abstract:
... Different ecophysiological models are used to predict the productivity of forest plantations worldwide. The Physiological Principles in Prediction Growth (3-PG) model has been successfully used for this purpose since 1997. In this study, the 3-PG model was parameterized and validated to predict the productivity of the most planted clonal eucalypts in Brazil (Eucalyptus urophylla) in different regi ...
DOI:
10.1016/j.foreco.2020.117989

9. Differential Early Performance of Two Underplanted Hardwood Tree Species Following Restoration Treatments in High-Graded Temperate Rainforests

Author:
Soto, Daniel P.; Donoso, Pablo J.; Vásquez-Grandón, Angélica; González-Chang, Mauricio; Salas-Eljatib, Christian
Source:
Forests 2020 v.11 no.4
ISSN:
1999-4907
Subject:
Eucryphia cordifolia; Nothofagus alpina; bark; canopy gaps; forest ecosystems; forest types; fuelwood; hardwood; models; natural regeneration; old-growth forests; ontogeny; rain forests; root crown; seedlings; tanneries; trees; underplanting; understory; Chile
Abstract:
... Raulí (Nothofagus alpina (Poepp. & Endl.)) and Ulmo (Eucryphia cordifolia Cav.) are mid-tolerant tree species in the Coihue-Raulí-Tepa (ca. 0.55 mill ha) and Evergreen (ca. 4.1 mill ha) forest types in south-central Chile, respectively. These species have been selectively logged in old-growth forests especially during the 20th century, Raulí mostly for its highly valuable timber, and Ulmo for its ...
DOI:
10.3390/f11040401

10. Development of heartwood, sapwood, bark, pith and specific gravity of teak (Tectona grandis) in fast-growing plantations in Costa Rica

Author:
Berrocal, Alexander; Gaitan-Alvarez, Johana; Moya, Róger; Fernández-Sólis, David; Ortiz-Malavassi, Edgar
Source:
Journal of forestry research 2020 v.31 no.2 pp. 667-676
ISSN:
1007-662X
Subject:
Tectona grandis; bark; gravity; heartwood; models; pith; plantations; sapwood; specific gravity; stand density; tree and stand measurements; tree height; trees; wood; Costa Rica
Abstract:
... To elucidate the development of heartwood, bark, sapwood, pith and specific gravity of wood in fast-growing teak (Tectona grandis) plantations in Costa Rica, we sampled three trees in each of 55 plantations and modelled each variable with age, site and different tree heights. Age and stand density of plantations were significant correlated with stem diameter at breast height and total height of th ...
DOI:
10.1007/s11676-018-0849-5

11. TRIPS 2.0: Toward more comprehensive modeling of radiocaesium cycling in forest

Author:
Thiry, Y.; Tanaka, T.; Dvornik, A.A.; Dvornik, A.M.
Source:
Journal of environmental radioactivity 2020 v.214-215 pp. 106171
ISSN:
0265-931X
Subject:
bark; biogeochemistry; branches; data collection; forests; leaves; models; monitoring; radioactive fallout; radioactivity; radionuclides; soil; soil quality; stemwood; trees; Belarus; Japan; Ukraine
Abstract:
... Because internal transfers can play a key role in radiocaesium persistence in trees, a reliable representation of radiocaesium recycling between tree organs in forest models is important for long-term simulations after radioactive fallout in Chernobyl and Fukushima. We developed an upgraded 2.0 version of the initial TRIPS (“Transfer of Radionuclides In Perennial vegetation System”) model involvin ...
DOI:
10.1016/j.jenvrad.2020.106171

12. Enhancement of Norway spruce bark side-streams: Modification of bioactive and protective properties of stilbenoid-rich extracts by UVA-irradiation

Author:
Välimaa, Anna-Liisa; Raitanen, Jan-Erik; Tienaho, Jenni; Sarjala, Tytti; Nakayama, Eiko; Korpinen, Risto; Mäkinen, Sari; Eklund, Patrik; Willför, Stefan; Jyske, Tuula
Source:
Industrial crops and products 2020 v.145 pp. 112150
ISSN:
0926-6690
Subject:
Candida albicans; Escherichia coli; Picea abies; Staphylococcus aureus; amberlite; antibacterial properties; antioxidant activity; bark; bark extracts; chemical composition; cyclization reactions; disaccharides; ethanol; gas chromatography-mass spectrometry; glucosides; lipid peroxidation; models; phenanthrenes; photosensitivity; preservatives; stilbenes; trees; ultraviolet radiation
Abstract:
... Bark of Norway spruce (Picea abies [L.] Karst.) trees contains large amounts of polyphenolic stilbene glucosides. Stilbene-rich bark extracts could be utilized as e.g., preservatives due to their antioxidative, antifungal, and antibacterial properties. As stilbenes are photosensitive compounds, ultraviolet (UV) light induces a well-known intramolecular cyclization, leading to the formation of subs ...
DOI:
10.1016/j.indcrop.2020.112150

13. Macrofungi on large decaying spruce trunks in a Central European old-growth forest: what factors affect their species richness and composition?

Author:
Holec, Jan; Kučera, Tomáš; Běťák, Jan; Hort, Libor
Source:
Mycological progress 2020 v.19 no.1 pp. 53-66
ISSN:
1617-416X
Subject:
Fomitopsis pinicola; Phellinus; Picea abies; altitude; bark; basidiomata; dominant species; fungi; inventories; models; monitoring; mosses and liverworts; mycobiota; old-growth forests; rare species; saprotrophs; shrubs; soil; species richness; surveys; trees; virgin forests; Czech Republic
Abstract:
... Species richness and composition of macrofungi on huge fallen trunks of spruce (Picea abies) were monitored at a model old-growth forest locality, Boubínský prales virgin forest (Czech Republic). Using detailed survey of all macrofungal groups based on fruit bodies, 168 species were recorded on 33 trunks with a diameter of 100–150 cm, which is a very high species richness. Individual trunks were i ...
DOI:
10.1007/s11557-019-01541-y

14. Adsorptive decontamination of wastewater containing methylene blue dye using golden trumpet tree bark (Handroanthus albus)

Author:
Hernandes, Paola T.; Oliveira, Marcos L. S.; Georgin, Jordana; Franco, Dison S. P.; Allasia, Daniel; Dotto, Guilherme L.
Source:
Environmental science and pollution research international 2019 v.26 no.31 pp. 31924-31933
ISSN:
0944-1344
Subject:
Gibbs free energy; Handroanthus; adsorbents; adsorption; bark; decolorization; decontamination; endothermy; enthalpy; lignin; mass transfer; methylene blue; models; pH; polysaccharides; sorption isotherms; stoichiometry; trees; wastewater; wood processing
Abstract:
... The golden trumpet tree bark (GTB), a wood-processing residue, was tested as adsorbent material for decontamination of wastewaters containing methylene blue dye (MB). The powdered material was preponderantly amorphous, containing an irregular surface with the presence of lignin and holocellulose. The adsorption was favorable at basic pH of 10 and adsorbent dosage of 0.5 g L⁻¹. The kinetics has fin ...
DOI:
10.1007/s11356-019-06353-x

15. Nondestructive Estimation of the Above-Ground Biomass of Multiple Tree Species in Boreal Forests of China Using Terrestrial Laser Scanning

Author:
Chen, Shilin; Feng, Zhongke; Chen, Panpan; Ullah Khan, Tauheed; Lian, Yining
Source:
Forests 2019 v.10 no.11
ISSN:
1999-4907
Subject:
aboveground biomass; algorithms; allometry; bark; boreal forests; carbon sequestration; climate change; data collection; ecological value; models; nondestructive methods; normal values; quantitative analysis; roughness; tree and stand measurements; tree height; trees; wood density; China
Abstract:
... Above-ground biomass (AGB) plays a pivotal role in assessing a forest’s resource dynamics, ecological value, carbon storage, and climate change effects. The traditional methods of AGB measurement are destructive, time consuming and laborious, and an efficient, relatively accurate and non-destructive AGB measurement method will provide an effective supplement for biomass calculation. Based on ...
DOI:
10.3390/f10110936

16. Insights into biological properties of less explored bark of industrially important Acacia catechu Willd

Author:
Kumar, Rakesh; Mahey, Sonia; Arora, Rohit; Mahajan, Jyoti; Kumar, Vinod; Arora, Saroj
Source:
Industrial crops and products 2019 v.138 pp. 111486
ISSN:
0926-6690
Subject:
Acacia catechu; DNA; antioxidant activity; antioxidants; bark; brain; breasts; butanol; cervix; chlorogenic acid; cinnamic acid; ethanol; free radicals; gastrointestinal system; humans; inhibitory concentration 50; kaempferol; liver; lungs; methanol; models; neoplasm cells; path analysis; pharmaceutical industry; quercetin; therapeutics; trees; ultra-performance liquid chromatography
Abstract:
... Acacia catechu Willd. is an industrially exploited tree for its heartwood. It also has numerous ethnomedicinal uses especially in gastrointestinal tract-related disorders. However, not much is available on bark of the tree, so the present study highlights the possible therapeutic potential of A. catechu bark. The bark extract/fractions, methanol (MEB), ethyl alcohol (EAFB), n-butanol (NBFB) and aq ...
DOI:
10.1016/j.indcrop.2019.111486

17. Soil productivity drivers in New Zealand planted forests

Author:
Beets, P.N.; Kimberley, M.O.; Garrett, L.G.; Paul, T.S.H.; Matson, A.L.
Source:
Forest ecology and management 2019 v.449 pp. 117480
ISSN:
0378-1127
Subject:
Fabaceae; Pinus radiata; agricultural land; bark; carbon; carbon nitrogen ratio; climate; edaphic factors; fertilizers; forest inventory; forests; land use; landscapes; models; nitrogen fixation; organic phosphorus; pastoralism; rain; regression analysis; soil carbon; soil fertility; soil organic matter; soil productivity; solar radiation; temperature; topsoil; total nitrogen; tree health; trees; New Zealand
Abstract:
... Soil fertility is one of a number of environmental and biotic drivers of Pinus radiata (D. Don) productivity in New Zealand’s planted forest estate. However, its importance as a driver of productivity at a national scale is uncertain. This paper uses New Zealand’s planted forest inventory plot network, which encompasses a wide range of planted forest environments in New Zealand, to quantify climat ...
DOI:
10.1016/j.foreco.2019.117480

18. RR2 dye adsorption to Hymenaea courbaril L. bark activated carbon associated with biofilm

Author:
Mendonça, Andressa Regina Vasques; Zanardi, Giuliano Brito; Brum, Sarah Silva; de Campos, Tatiana Amabile; Cardoso, Carlos Magno Marques; Zavarize, Danilo Gualberto
Source:
Environmental science and pollution research international 2019 v.26 no.28 pp. 28524-28532
ISSN:
0944-1344
Subject:
Hymenaea courbaril; absorbance; activated carbon; adsorbents; adsorption; aqueous solutions; bark; biofilm; cerrado; dissolved organic carbon; dyes; ecosystems; microbial activity; models; sorption isotherms; trees
Abstract:
... This study addressed the removal performance of RR2 from aqueous solutions in adsorption columns experiments by comparing the potential of activated carbon alone (ACA) and microbially inoculated (MIAC), prepared from barks of a largely available tree in Brazilian Cerrado biome, Hymenaea courbaril L. or “Jatobá,” presenting the kinetics, isotherms, breakthrough curves, and dissolved organic carbon ...
DOI:
10.1007/s11356-018-3786-0

19. Intake of Radionuclides in the Trees of Fukushima Forests 2. Study of Radiocesium Flow to Poplar Seedlings as a Model Tree

Author:
Aoki, Shoko; Nonaka, Miki; Yasukawa, Chisato; Itakura, Masateru; Tsubokura, Masaharu; Baba, Kei’ichi; Ohbayashi, Hiroya; Seyama, Tomoko; Uehara, Iwao; Kaida, Rumi; Taji, Teruaki; Sakata, Yoichi; Hayashi, Takahisa
Source:
Forests 2019 v.10 no.9
ISSN:
1999-4907
Subject:
Populus; abscission; accidents; bark; cambium; cesium; cork; forests; heartwood; leaves; models; nuclear power; potassium; power plants; radionuclides; seasonal growth; seedlings; stems; trees; Japan
Abstract:
... After the nuclear power plant accident in Fukushima, radionuclides were deposited over a large area of local forest. However, almost nothing is known about radionuclide infiltration into trees. Here, we used poplar seedlings as a model to show that radiocesium can enter directly into leaves and bark, moving via ray cells through the symplastic pathways to the xylem and concentrating around the mer ...
DOI:
10.3390/f10090736

20. Biomass estimation of individual trees for coppice-originated oak forests

Author:
Ozdemir, Emrah; Makineci, Ender; Yilmaz, Ersel; Kumbasli, Meric; Caliskan, Servet; Beskardes, Vedat; Keten, Akif; Zengin, Hayati; Yilmaz, Hatice
Source:
European journal of forest research 2019 v.138 no.4 pp. 623-637
ISSN:
1612-4669
Subject:
Quercus cerris; Quercus frainetto; Quercus petraea; aboveground biomass; bark; equations; forests; leaves; models; statistics; stems; tree and stand measurements; tree height; trees
Abstract:
... In this study, individual tree-biomass equations are developed for the different biomass components (foliage, branch, bark, stem, and total aboveground biomass) of Quercus frainetto Ten., Quercus cerris L., and Quercus petraea (Matt.) Liebl. species, which are the main oak species in coppice-originated oak forests. This research was conducted in northern Turkish Thrace, an important coppice-oak ar ...
DOI:
10.1007/s10342-019-01194-2

21. RITY – A phenology model of Ips typographus as a tool for optimization of its monitoring

Author:
Ogris, Nikica; Ferlan, Mitja; Hauptman, Tine; Pavlin, Roman; Kavčič, Andreja; Jurc, Maja; de Groot, Maarten
Source:
Ecological modelling 2019
ISSN:
0304-3800
Subject:
Internet; Ips typographus; Picea abies; air; air temperature; bark; bark beetles; flight; heat sums; models; monitoring; phenology; pheromone traps; prediction; seasonal development; spring; swarming; topography; trees; Central European region
Abstract:
... We developed the RITY-2 phenology model for the spatial and temporal simulation of the seasonal development of Ips typographus based on the PHENIPS model and the data of Integrated Nowcasting through Comprehensive Analysis (INCA). Many parts of PHENIPS were improved with innovative approaches and a new model was developed. European spruce bark beetle phenology was monitored at eight study sites in ...
DOI:
10.1016/j.ecolmodel.2019.108775

22. Integration of National Forest Inventory and Nationwide Airborne Laser Scanning Data to Improve Forest Yield Predictions in North-Western Spain

Author:
Novo-Fernández, Alís; Barrio-Anta, Marcos; Recondo, Carmen; Cámara-Obregón, Asunción; López-Sánchez, Carlos A.
Source:
Remote Sensing 2019 v.11 no.14
ISSN:
2072-4292
Subject:
Eucalyptus globulus; Pinus pinaster; Pinus radiata; aboveground biomass; artificial intelligence; bark; data collection; databases; forest ecosystems; forest yields; forests; lidar; models; national forests; prediction; regression analysis; remote sensing; trees; yield forecasting; Spain
Abstract:
... The prediction of growing stock volume is one of the commonest applications of remote sensing to support the sustainable management of forest ecosystems. In this study, we used data from the 4th Spanish National Forest Inventory (SNFI-4) and from the 1st nationwide Airborne Laser Scanning (ALS) survey to develop predictive yield models for the three major commercial tree forest species (Eucalyptus ...
DOI:
10.3390/rs11141693

23. Production and Regression Models for Biomass and Carbon Captured in <i>Gmelina arborea</i> Roxb. Trees in Short Rotation Coppice Plantations in Costa Rica

Author:
Tenorio, Carolina; Moya, Róger; Ortiz-Malavassi, Edgar; Arias, Dagoberto
Source:
Forests 2019 v.10 no.7
ISSN:
1999-4907
Subject:
Gmelina arborea; bark; biomass production; branches; carbon; coppicing; equations; leaves; models; mortality; plantations; regression analysis; tree height; trees; Costa Rica
Abstract:
... Mortality, diameter at 30 cm over ground level, height, biomass production, and carbon capture (CC) for different tree components (trunk, bark, branches, and leaves) in two locations in Costa Rica, during their first three years and with three plantation spacings (1.0 × 0.5 m, 1.0 × 1.0 m, and 1.0 × 2.0 m) were obtained for Gmelina arborea Roxb. trees growing in short rotation co ...
DOI:
10.3390/f10070593

24. Evaluation of the antiulcer activity of the aqueous stem bark extract of Balanites aegyptiaca L Delile in Wistar rats

Author:
Ugwah, Michael O.; Ugwah-Oguejiofor, Chinenye J.; Etuk, Emmanuel U.; Bello, Shaibu O.; Aliero, Adamu A.
Source:
Journal of ethnopharmacology 2019 v.239 pp. 111931
ISSN:
0378-8741
Subject:
Balanites aegyptiacus; anti-ulcer activity; asthma; bark; dose response; dysentery; ethanol; indomethacin; malaria; models; pH; peptic ulcers; phytotherapy; pylorus; rats; secretion; titratable acidity; traditional medicine; trees
Abstract:
... Balanites aegyptiaca L. Delile (Zygophyllaceae) is a perennial tree that is mostly found in Africa, south Asia and most desert environments. Decoctions of its stem barks are used in northern Nigeria for the treatment of ulcers and stomach issues. Other folkloric uses include treatment of wounds, malaria, dysentery, asthma, and fever.Aim of the study: The present study evaluated the antiulcer activ ...
DOI:
10.1016/j.jep.2019.111931

25. Spanning the habitat gradient: Red-headed woodpecker nest-site selection in three distinct cover types

Author:
Nickley, Benjamin; Bulluck, Lesley P.
Source:
Forest ecology and management 2019 v.444 pp. 115-126
ISSN:
0378-1127
Subject:
Ilex opaca; Melanerpes erythrocephalus; Pinus; bark; breeding; canopy; forests; geographical distribution; habitat preferences; habitats; landscapes; military lands; models; nesting sites; nests; snags; trees; understory; wetlands; woodpeckers; Virginia
Abstract:
... Understanding species habitat relationships is fundamental to ecology and underpins conservation-based management. Species with broad habitat preferences and wide geographic ranges are capable of fulfilling breeding requirements in different habitat contexts. Habitat selection in these species may vary in a context-specific way, so determining the factors driving habitat selection requires spannin ...
DOI:
10.1016/j.foreco.2019.04.048

26. Macrophotogrammetry: Structure-from-Motion photogrammetry for three-dimensional structure of lichens and change over time

Author:
Peterson, Eric B.
Source:
TheBryologist 2019 v.122 no.2 pp. 325-339
ISSN:
0007-2745
Subject:
Chaenotheca; algorithms; ascomata; bark; cameras; computer software; humidity; lichens; models; photogrammetry; photographic equipment; photographs; trees; uncertainty; wood
Abstract:
... Photogrammetry, the use of photography to calculate measurements, includes a suite of algorithms known as Structure from Motion (SfM) that model 3D structure from standard photographic images. While use of SfM for objects or scenes at scales from centimeters to kilometers is common, studies that use macrophotography for small objects or scenes are few. This study tests methodology to optimize 3D m ...
DOI:
10.1639/0007-2745-122.2.325

27. Taxon-specific modeling systems for improving reliability of tree aboveground biomass and its components estimates in tropical dry dipterocarp forests

Author:
Huy, Bao; Tinh, Nguyen Thi; Poudel, Krishna P.; Frank, Bryce Michael; Temesgen, Hailemariam
Source:
Forest ecology and management 2019 v.437 pp. 156-174
ISSN:
0378-1127
Subject:
Dipterocarpus; Shorea; aboveground biomass; bark; branches; carbon sinks; data collection; ecoregions; equations; forest types; highlands; leaves; models; prediction; production functions; statistical analysis; tree and stand measurements; tree height; trees; wood density; Vietnam
Abstract:
... The dry dipterocarp forest (DDF) is a major and unique forest type in Asia providing both protection and production functions. DDF's role as a carbon sink is important in Asia, but there is a deficiency in existing biomass models for these forests. This study aimed to develop simultaneous modeling systems to estimate tree above-ground biomass (AGB) and its components for mixed species, dominant fa ...
DOI:
10.1016/j.foreco.2019.01.038

28. Chemical characterization and evaluation of gastric antiulcer properties of the hydroethanolic extract of the stem bark of Virola elongata (Benth.) Warb.

Author:
Almeida, Guilherme Vieira Botelho de; Arunachalam, Karuppusamy; Balogun, Sikiru Olaitan; Pavan, Eduarda; Ascêncio, Sérgio Donizeti; Soares, Ilsamar Mendes; Zanatta, Ana C.; Vilegas, Wagner; Macho, Antonio; Oliveira Martins, Domingos Tabajara de
Source:
Journal of ethnopharmacology 2019 v.231 pp. 113-124
ISSN:
0378-8741
Subject:
Helicobacter pylori; Virola elongata; acetic acid; acidity; analgesic effect; anti-ulcer activity; antioxidant activity; bark; catalase; catechin; colorimetry; ethanol; fractionation; gallic acid; gastric acid; herbal medicines; high performance liquid chromatography; lignans; maceration; mechanism of action; medicinal plants; methanol; models; mucus; myeloperoxidase; nitric oxide; phytogeography; polyketides; quinic acid; rodents; rutin; secretion; stomach ulcers; traditional medicine; trees
Abstract:
... Virola elongata is a tree species belonging to the Myristicaceae family, distributed in the North and Midwest regions of Brazil, in the phytogeographic domain of the Amazon. The aqueous infusion or the hydroethanolic macerate of the stem bark of V. elongata are used in Brazilian and Ecuadorian indigenous folk medicine for several ethnopharmacological purposes, principally, in the treatment of stom ...
DOI:
10.1016/j.jep.2018.11.011

29. Aboveground Biomass Allocation and Additive Allometric Models for Natural <i>Larix gmelinii </i>in the Western Daxing’anling Mountains, Northeastern China

Author:
Meng, Shengwang; Jia, Quanquan; Liu, Qijing; Zhou, Guang; Wang, Huimin; Yu, Jian
Source:
Forests 2019 v.10 no.2
ISSN:
1999-4907
Subject:
Larix gmelinii; aboveground biomass; allometry; bark; branches; data collection; dry matter partitioning; equations; forests; leaves; models; mountains; tree and stand measurements; trees; wood; China
Abstract:
... Accurate estimates of tree component and aboveground biomass strongly depend on robust and precise allometric equations. However, site-specific and suitable biomass equations are currently scarce for natural Larix gmelinii forests in the western Daxing’anling Mountains, northeastern China. This study aimed to evaluate the biomass allocation patterns within tree components and develop additiv ...
DOI:
10.3390/f10020150

30. Factors influencing mercury uptake by leaves of stone pine (Pinus pinea L.) in Almadén (Central Spain)

Author:
Barquero, José Ignacio; Rojas, Sofía; Esbrí, José María; García-Noguero, Eva M.; Higueras, Pablo
Source:
Environmental science and pollution research international 2019 v.26 no.4 pp. 3129-3137
ISSN:
0944-1344
Subject:
Olea europaea; Pinus pinea; atomic absorption spectrometry; bark; conifer needles; environmental monitoring; indicator species; mercury; mining; models; pollutants; pollution; regression analysis; roads; soil; soil sampling; sorption; trees; wastes; Spain
Abstract:
... The use of trees for biomonitoring of mercury (Hg) and other atmospheric pollutants is of increasing importance today. Leaves from different species have been the most widely used plant organ for this purpose, but only pine bark, and not leaves, was used to monitor Hg pollution. In Almadén (South Central Spain), the largest cinnabar (HgS) deposits in the world have been mined for over 2000 years t ...
DOI:
10.1007/s11356-017-0446-8

31. First Report of Laurel Wilt Disease Caused by Raffaelea lauricola on Sassafras in North Carolina

Author:
Mayfield, A. E.; Villari, C.; Hamilton, J. L.; Slye, J.; Langston, W.; Oten, K.; Fraedrich, S. W.
Source:
Plant disease 2019 v.103 no.1 pp. 155
ISSN:
0191-2917
Subject:
Persea borbonia; Raffaelea lauricola; Sassafras albidum; Xyleborus glabratus; bark; coastal plains; conidia; conidiophores; culture media; cycloheximide; discoloration; edge effects; flowers; forest health; forest types; fungi; health care workers; hosts; laurel wilt; leaves; models; oligodeoxyribonucleotides; pathogens; polymerase chain reaction; roadsides; sapwood; streptomycin; symbionts; temperature; trees; tubulin; vascular wilt; wood chips; Asia; North Carolina
Abstract:
... Laurel wilt is a vascular disease of plants in the family Lauraceae caused by Raffaelea lauricola T.C. Harrin., Aghayeva & Fraedrich, a fungal symbiont of the redbay ambrosia beetle, Xyleborus glabratus Eichh. The beetle and pathogen are native to Asia and have spread rapidly in the southeastern United States since 2002 (Fraedrich et al. 2015). In natural forests, laurel wilt has killed millions o ...
DOI:
10.1094/PDIS-05-18-0871-PDN

32. Inside and outside bark volume models for jack pine (Pinus banksiana) and black spruce (Picea mariana) plantations in Ontario, Canada

Author:
Sharma, Mahadev
Source:
TheForestry chronicle 2019 v.95 no.1 pp. 50-57
ISSN:
0015-7546
Subject:
Picea mariana; Pinus banksiana; bark; boreal forests; heteroskedasticity; models; plantations; stemwood; sustainable forestry; trees; Ontario
Abstract:
... Accurate estimates of tree stemwood volume are a fundamental requirement for sustainable forest management. As jack pine (Pinus banksiana Lamb.) and black spruce (Picea mariana Mill. BSP) are the primary species harvested in boreal Ontario, Canada, inside and outside bark tree volume models were developed for these species grown in plantations. Data used in this study came from stem analysis of 11 ...
DOI:
10.5558/tfc2019-009

33. Resistance of Pinus pinea L. bark to fire

Author:
Madrigal, Javier; Souto-García, Jennifer; Calama, Rafael; Guijarro, Mercedes; Picos, Juan; Hernando, Carmen
Source:
The International journal of wildland fire 2019 v.28 no.5 pp. 342-353
ISSN:
1049-8001
Subject:
Pinus pinea; bark; calorimeters; cambium; coniferous forests; fire resistance; flammability; fuels (fire ecology); heat transfer; laboratory experimentation; models; prediction; prescribed burning; silviculture; temperature; trees; wildfires
Abstract:
... The stone pine (Pinus pinea L.) has thick bark as an adaptation to wildfire. In this study, laboratory tests were carried out to quantify the influence of bark thickness on flammability and fire resistance in this species. Heating rate in the cambium and the time to reach lethal temperatures in living tissues were determined using a mass loss calorimeter. In addition, data from permanent plots wer ...
DOI:
10.1071/WF18118

34. The thermal insulation properties of oak (Quercus mongolica) bark and the applicability of stem heating models

Author:
Wei, Rui; Yang, Guang; Zhang, Jili; Wang, Xiaohong; Zhou, Xin
Source:
The International journal of wildland fire 2019 v.28 no.12 pp. 969-980
ISSN:
1049-8001
Subject:
Quercus mongolica; bark; cambium; fires; heat transfer; insulating materials; models; prediction; probability; temperature; trees; water content
Abstract:
... The survival probability of a tree exposed to surface fire varies widely depending on its bark. To advance the understanding of insulation properties of bark, mean thickness (BT), moisture content (MCb), surface structure (BS) and density (ρb) of bark samples of Mongolian oak (Quercus mongolica) (n=395) for four diameter classes were investigated. In addition, data from 158 heating experiments sim ...
DOI:
10.1071/WF18232

35. Generating Tree-Level Harvest Predictions from Forest Inventories with Random Forests

Author:
Kilham, Philipp; Hartebrodt, Christoph; Kändler, Gerald
Source:
Forests 2018 v.10 no.1
ISSN:
1999-4907
Subject:
bark; data collection; forest inventory; forest types; models; prediction; trees; wood; Germany
Abstract:
... Wood supply predictions from forest inventories involve two steps. First, it is predicted whether harvests occur on a plot in a given time period. Second, for plots on which harvests are predicted to occur, the harvested volume is predicted. This research addresses this second step. For forests with more than one species and/or forests with trees of varying dimensions, overall harvested volume pre ...
DOI:
10.3390/f10010020

36. Basic density and crown parameters of forest forming species within Steppe zone in Ukraine

Author:
Sytnyk, Svitlana; Lovynska, Viktoriia; Lakyda, Petro; Maslikova, Katerina
Source:
Folia oecologica 2018 v.45 no.2 pp. 82-91
ISSN:
1336-5266
Subject:
Pinus sylvestris; Robinia pseudoacacia; aboveground biomass; bark; biometry; crown characteristics; equations; forests; introduced species; leaves; models; steppes; tree crown; trees; wood density; wood quality; Ukraine
Abstract:
... The parameters of wood density (WD), bark density (BD) and tree crown characteristics are not only important for estimation of the aboveground biomass, but they also serve as indicators for the timber quality. This study had two objectives: Black locust (Robinia pseudoacacia L.) – an introduced species; Scots pine (Pinus sylvestris L.) – an aboriginal species. Black locust and Scots pine from the ...
DOI:
10.2478/foecol-2018-0009

37. Bark and latex harvesting short-term impact on native tree species reproduction

Author:
da Silva, Jacilene Bezerra; da Silva, Leonardo Barbosa; Albuquerque, Ulysses Paulino; Castro, Cibele Cardoso
Source:
Environmental monitoring and assessment 2018 v.190 no.12 pp. 744
ISSN:
0167-6369
Subject:
Stryphnodendron rotundifolium; bark; cerrado; debarking; economic valuation; flowers; fruits; gene flow; harvesting; latex; models; ovules; pollen; pollination; rain forests; reproductive performance; reproductive success; savannas; seeds; trees; Brazil
Abstract:
... The bark and the latex of plants constitute non-timber forest products (NTFPs) of medicinal and economic value that are widely harvested throughout the world. Bark and latex harvesting impacts on plant reproduction are controversial in the literature. Some species are negatively impacted, some do not show any response, and others may exhibit higher flower and fruit production after harvesting. In ...
DOI:
10.1007/s10661-018-7081-9

38. Carbon fraction of Pinus radiata biomass components within New Zealand

Author:
Beets, Peter N.; Garrett, Loretta G.
Source:
New Zealand journal of forestry science 2018 v.48 no.1 pp. 14
ISSN:
1179-5395
Subject:
Pinus radiata; bark; biomass; branches; carbon; carbon sinks; debarking; drying; drying temperature; forest land; forest stands; forests; harvesting; models; root systems; roots; stand age; stemwood; trees; water content; New Zealand
Abstract:
... BACKGROUND: Carbon fractions are applied to dry matter estimates to calculate carbon stocks in forest stands. A default carbon fraction has been applied to planted forest species in New Zealand; however, various studies have shown that the carbon fraction can differ among species and between tree components. New Zealand-specific carbon fractions were, therefore, developed to improve the accuracy o ...
DOI:
10.1186/s40490-018-0119-5

39. Green Salamander Estimated Abundance and Environmental Associations in South Carolina

Author:
Newman, Jillian C.; Barrett, Kyle; Dillman, James W.
Source:
Journal of herpetology 2018 v.52 no.4 pp. 437-443
ISSN:
1937-2418
Subject:
Aneides; altitude; bark; climate change; forests; habitat destruction; habitats; models; probability; salamanders and newts; species abundance; surveys; trees; South Carolina
Abstract:
... Green Salamanders, Aneides aeneus, are habitat specialists found in narrow crevices of rock outcrops and under flaky bark of trees. The species has a high conservation priority throughout its range and has been negatively affected by habitat loss, climate change, disease, and overcollection. In portions of the Blue Ridge Escarpment population, many historical locations for this species have not be ...
DOI:
10.1670/17-117

40. Interlocked grain and density patterns in Bagassa guianensis: changes with ontogeny and mechanical consequences for trees

Author:
Bossu, Julie; Lehnebach, Romain; Corn, Stephane; Regazzi, Arnaud; Beauchêne, Jacques; Clair, Bruno
Source:
Trees 2018 v.32 no.6 pp. 1643-1655
ISSN:
0931-1890
Subject:
Bagassa guianensis; bark; construction materials; finite element analysis; mechanical properties; models; ontogeny; pith; species diversity; trees; tropical plants; wood
Abstract:
... KEY MESSAGE: Interlocked grain and basic density increase from pith to bark in Bagassa guianensis and greatly improve trunk torsional stiffness and wood tenacity in the radial plane. Trees modulate their building material, wood, throughout their lifetime to meet changing mechanical needs. Basic density, a widely studied wood property, has been proved to be negatively correlated to growth rate and ...
DOI:
10.1007/s00468-018-1740-x

41. Root system attributes of 12 juvenile indigenous early colonising shrub and tree species with potential for mitigating erosion in New Zealand

Author:
Marden, M.; Lambie, S.; Rowan, D.
Source:
New Zealand journal of forestry science 2018 v.48 no.1 pp. 11
ISSN:
1179-5395
Subject:
Coprosma; Cordyline australis; Coriaria; Knightia excelsa; Leptospermum scoparium; Myrsine; Neopanax arboreus; Pittosporum tenuifolium; Sophora; bark; belowground biomass; cabbage; erosion control; field experimentation; growth performance; guidelines; indigenous species; issues and policy; juveniles; land use change; landslides; models; planting; reforestation; root crown; root systems; roots; shoots; shrubs; tree trunk; trees; New Zealand
Abstract:
... BACKGROUND: Restoring erosion-prone land with indigenous species, whether by managed reforestation (planting) or by passive natural reversion, is reliant on knowing which species mix is likely to provide the quickest and most effective mitigation against shallow landslides. In turn, this requires knowledge of differences in growth metrics among plant species, particularly during their formative ye ...
DOI:
10.1186/s40490-018-0115-9

42. Allometric equations for predicting mineralomass in high-forest chestnut stands in Portugal

Author:
Patrício, M. S.; Tomé, M.
Source:
Acta horticulturae 2018 no.1220 pp. 125-132
ISSN:
0567-7572
Subject:
Castanea sativa; adults; allometry; bark; biomass; branches; calcium; ecosystems; equations; felling; flowers; harvesting; least squares; leaves; magnesium; models; nitrogen; nutrients; phosphorus; potassium; prediction; trees; woodlands; Portugal
Abstract:
... The assessment of nutrients in biomass tree-components is a time-consuming and expensive process, often involving tree felling, not always possible or desirable. Thus, mineralomass prediction equations are an important tool for the quantification of the nutrients exported in management and harvesting activities towards its replacement and sustainable management, as well as to evaluate the effect o ...
DOI:
10.17660/ActaHortic.2018.1220.19

43. Managed forests provide roosting opportunities for Indiana bats in south-central Indiana

Author:
Bergeson, Scott M.; O'Keefe, Joy M.; Haulton, G. Scott
Source:
Forest ecology and management 2018 v.427 pp. 305-316
ISSN:
0378-1127
Subject:
Myotis sodalis; bark; canopy; females; forests; habitats; landscapes; males; models; predator avoidance; regression analysis; roosting behavior; shelterwood systems; snags; summer; tree cavities; trees; Indiana
Abstract:
... There is an intense interest in the effects of timber harvest on forest-dwelling bats due to the potential for timber harvest to reduce available habitat. Knowledge of these effects would be especially significant for the conservation of threatened and endangered bat species, many of which are forest obligates. We conducted a study to determine how endangered Indiana bats (Myotis sodalis) select s ...
DOI:
10.1016/j.foreco.2018.06.009

44. Mountain pine beetle attack faster growing lodgepole pine at low elevations in western Montana, USA

Author:
Cooper, L. Annie; Reed, Charlotte C.; Ballantyne, Ashley P.
Source:
Forest ecology and management 2018 v.427 pp. 200-207
ISSN:
0378-1127
Subject:
Dendroctonus ponderosae; Pinus contorta var. latifolia; altitude; atmospheric precipitation; bark; climate change; climatic factors; forests; models; mortality; phenotype; risk; summer; temperature; trees; water stress; Montana; Rocky Mountain region
Abstract:
... Global change has impacted forests through altered disturbance regimes. In the western US, climate change has resulted in extensive and severe mountain pine beetle outbreaks. These outbreaks have the potential to impact forest function through the selection of certain phenotypes. We investigated the potential for bark beetle-induced selection by way of measuring growth and climate response in moun ...
DOI:
10.1016/j.foreco.2018.05.048

45. Recognizing Amazonian tree species in the field using bark tissues spectra

Author:
Hadlich, Hilana Louise; Durgante, Flávia Machado; dos Santos, Joaquim; Higuchi, Niro; Chambers, Jeffrey Q.; Vicentini, Alberto
Source:
Forest ecology and management 2018 v.427 pp. 296-304
ISSN:
0378-1127
Subject:
bark; data collection; forest management; herbaria; inventories; leaves; models; phloem; reflectance; species identification; spectral analysis; spectrometers; trees; tropical forests; wavelengths; Amazonia
Abstract:
... The identification of tree species in the field is often a subjective process and misidentifications cause many problems for forest management in the Amazon Forest. Near infrared spectra from dried leaves of herbarium specimens are able to distinguish species in tropical forests. However, toolsto improve species identification directly in the field are needed. In this study, we tested whether spec ...
DOI:
10.1016/j.foreco.2018.06.002

46. Termites confer resistance to changes in tree composition following reduced browsing in an African savanna

Author:
Acanakwo, Erik F.; Okullo, Paul; Sheil, Douglas; Moe, Stein R.
Source:
Journal of vegetation science 2018 v.29 no.6 pp. 989-998
ISSN:
1100-9233
Subject:
Macrotermes; bark; browsing; community structure; fruits; habitats; herbivores; lakes; models; national parks; plant communities; savannas; species diversity; stems; trees; ungulates; Uganda
Abstract:
... QUESTIONS: Ungulates affect plant community structure and composition. Vegetation response to these effects are variable. Wild large herbivore populations are declining globally, but how tree communities respond to this change is not clear. We experimentally examined how tree communities respond to changes in ungulate abundance in a heterogeneous landscape. LOCATION: Lake Mburo National Park, Ugan ...
DOI:
10.1111/jvs.12682

47. Host Cues Mediate Growth and Establishment of Oak Mistletoe (Phoradendron leucarpum, Viscaceae), an Aerial Parasitic Plant

Author:
Randle, Christopher P.; Cannon, Brandi C.; Faust, Amber L.; Hawkins, Angela K.; Cabrera, Sara E.; Lee, Stephen; Lewis, Michelle L.; Perez, Amy A.; Sopas, James; Verastegui, Timothy J.; Williams, Justin K.
Source:
Castanea 2018 v.83 no.2 pp. 249-262
ISSN:
0008-7475
Subject:
Phoradendron leucarpum; Quercus nigra; bark; beta-phellandrene; ecoregions; field experimentation; fruit maturity; haustoria; host preferences; hosts; limonene; models; myrcene; parasitic plants; seedlings; surveys; trees; viability; Texas
Abstract:
... The oak mistletoe (Phoradendron leucarpum, Viscaceae) is well-documented to exhibit preference for a few potential host species in a given locality, even when many potential host species are present. In trying to explain this distribution, we examined the mechanisms by which mistletoe seedlings recognize potentially suitable hosts in the Piney Woods ecoregion of east Texas. An initial survey of pa ...
DOI:
10.2179/18-173

48. Tree-bark volume prediction via machine learning: A case study based on black alder’s tree-bark production

Author:
Diamantopoulou, Maria J.; Özçelik, Ramazan; Yavuz, Hakkı
Source:
Computers and electronics in agriculture 2018 v.151 pp. 431-440
ISSN:
0168-1699
Subject:
Alnus glutinosa; artificial intelligence; bark; case studies; coppicing; economic impact; fertilizers; forest management; forest resources; forests; models; prediction; regression analysis; soil; trees
Abstract:
... Tree-bark volume estimation is a multi-faceted problem and at the same time of vital importance in the area of forest resources management. This importance relies on the fact that it constitutes a key variable for accurately assessing timber quantities, while at the same time its use has been spread as a soil-covering product or as a soil fertilizer or as a substitutional medicinal product. Conseq ...
DOI:
10.1016/j.compag.2018.06.039

49. Variation in Carbon Fraction, Density, and Carbon Density in Conifer Tree Tissues

Author:
Jones, Dryw A.; O’Hara, Kevin L.
Source:
Forests 2018 v.9 no.7
ISSN:
1999-4907
Subject:
bark; biomass; carbon; conifers; crown characteristics; model validation; models; tree trunk; trees; wood density
Abstract:
... We analyzed variations in three tree properties: tissue density, carbon fraction, and carbon density within bole tissues of nine Californian conifer species. Model performance for all three tree properties was significantly improved with the addition of covariates related to crown characteristics and position within the tree. This suggests that biomass and carbon mass estimates that rely on fixed ...
DOI:
10.3390/f9070430

50. Modelling the variation of bark thickness within and between European silver fir (Abies alba Mill.) trees in southwest Germany

Author:
Stängle, Stefan M; Dormann, Carsten F
Source:
Forestry 2018 v.91 no.3 pp. 283-294
ISSN:
1464-3626
Subject:
Abies alba; Monte Carlo method; bark; data collection; environmental factors; equations; models; prediction; sales; tree and stand measurements; tree height; trees; Germany
Abstract:
... This study examined bark thickness variability of Silver fir (Abies alba Mill.) in southwest Germany over time and space by comparing a dataset of bark measurements from the 1970s with more recent assessments. Within-tree variability of bark thickness was analysed to estimate the required number of sampling locations per tree for defined accuracy levels. A range of models from the literature that ...
DOI:
10.1093/forestry/cpx047

51. Elephant‐mediated compositional changes in riparian canopy trees over more than two decades in northern Botswana

Author:
Teren, Gabriella; Owen‐Smith, Norman; Erasmus, Barend F. N.
Source:
Journal of vegetation science 2018 v.29 no.4 pp. 585-595
ISSN:
1100-9233
Subject:
Acacia; Elephantidae; bark; canopy; dead wood; felling; juveniles; models; mortality; riparian areas; rivers; species diversity; statistics; surveys; trees; woodlands; Botswana
Abstract:
... QUESTIONS: How has the composition and diversity of canopy tree species in a riparian woodland changed over time? How are the compositional changes related to impact of elephants? Does the composition of juvenile plants indicate that the woodland retains the potential to recover its former composition? LOCATION: Northern Botswana adjoining the Linyanti River. METHODS: We assessed the species compo ...
DOI:
10.1111/jvs.12638

52. Near‐infrared spectrometry allows fast and extensive predictions of functional traits from dry leaves and branches

Author:
Costa, Flávia R. C.; Lang, Carla; Almeida, Danilo R. A.; Castilho, Carolina V.; Poorter, Lourens
Source:
Ecological applications 2018 v.28 no.5 pp. 1157-1167
ISSN:
1051-0761
Subject:
bark; branches; carbon; dry matter content; ecosystems; forests; frequency distribution; herbaria; leaf area; leaves; models; nutrient balance; prediction; spectral analysis; spectroscopy; trees; wood density; xylem
Abstract:
... The linking of individual functional traits to ecosystem processes is the basis for making generalizations in ecology, but the measurement of individual values is laborious and time consuming, preventing large‐scale trait mapping. Also, in hyper‐diverse systems, errors occur because identification is difficult, and species level values ignore intra‐specific variation. To allow extensive trait mapp ...
DOI:
10.1002/eap.1728

53. Local and General Above-Ground Biomass Functions for <i>Pinus palustris</i> Trees

Author:
Gonzalez-Benecke, Carlos A.; Zhao, Dehai; Samuelson, Lisa J.; Martin, Timothy A.; Leduc, Daniel J.; Jack, Steven B.
Source:
Forests 2018 v.9 no.6
ISSN:
1999-4907
Subject:
Pinus palustris; aboveground biomass; allometry; bark; data collection; economics; equations; forestry; leaves; models; research institutions; stand age; stand density; tree height; tree trunk; trees; Southeastern United States
Abstract:
... There is an increasing interest in estimating biomass for longleaf pine (Pinus palustris Mill.), an important tree species in the southeastern U.S. Most of the individual-tree allometric models available for the species are local, relying on stem diameter outside bark at breast height (DBH) and total tree height (HT), but seldom include stand-level variables such as stand age, basal area or stand ...
DOI:
10.3390/f9060310

54. Comparison of Whole-Tree Wood Property Maps for 13- and 22-Year-Old Loblolly Pine

Author:
Schimleck, Laurence; Antony, Finto; Mora, Christian; Dahlen, Joseph
Source:
Forests 2018 v.9 no.6
ISSN:
1999-4907
Subject:
Pinus taeda; bark; lumber; models; modulus of elasticity; near-infrared spectroscopy; pith; trees; wood; wood properties
Abstract:
... Maps developed using Akima’s interpolation method were used to compare patterns of within-tree variation for Pinus taeda L. (loblolly pine) wood properties in plantation-grown trees aged 13 and 22 years. Air-dry density, microfibril angle (MFA) and modulus of elasticity (MOE) maps represented the average of 18 sampled trees in each age class. Near infrared (NIR) spectroscopy models calibrate ...
DOI:
10.3390/f9060287

55. Forecasting oak decline caused by Phytophthora cinnamomi in Andalusia: Identification of priority areas for intervention

Author:
Duque-Lazo, Joaquín; Navarro-Cerrillo, Rafael María; van Gils, Hein; Groen, Thomas A.
Source:
Forest ecology and management 2018 v.417 pp. 122-136
ISSN:
0378-1127
Subject:
Phytophthora cinnamomi; ambient temperature; bark; biogeography; climate change; death; decline; forests; models; monitoring; mortality; pathogens; prediction; probability; root rot; soil; surveys; topography; trees; virulence; Mediterranean region
Abstract:
... Since the mid-20th century, trees in the Andalusian oak dehesa and forests have exhibited stress that often ends in the death of the tree. These events have been associated with Phytophthora cinnamomi, a soil-borne root pathogen, which causes root rot, bark cankers, decay and mortality – known as oak decline. Phytophthora cinnamomi is most virulent under high ambient temperatures combined with moi ...
DOI:
10.1016/j.foreco.2018.02.045

56. Patterns of bark growth for juvenile trees of six common hardwood species in the eastern United States and the implications to fire-tolerance

Author:
Shearman, T.M.; Wang, G.G.; Ma, P.T.; Guan, S.
Source:
Trees 2018 v.32 no.2 pp. 519-524
ISSN:
0931-1890
Subject:
Acer rubrum; Carya tomentosa; Fagus grandifolia; Liriodendron tulipifera; Quercus alba; Quercus velutina; bark; fire resistance; fires; forest canopy; hardwood; juveniles; mature plants; models; piedmont; trees; Eastern United States
Abstract:
... KEY MESSAGE: Bark allocation patterns did not follow fire-tolerance grouping of tree species in all cases; more studies are needed on bark development from juvenile to adult trees. Thick bark is presumed to be a trait of fire-tolerant trees that were historically subjected to frequent surface fires. To be recruited into the forest canopy, a tree must be able to survive fire and grow thick enough b ...
DOI:
10.1007/s00468-017-1649-9

57. Elemental assessment of vegetation via portable X-ray fluorescence (PXRF) spectrometry

Author:
McGladdery, Candice; Weindorf, David C.; Chakraborty, Somsubhra; Li, Bin; Paulette, Laura; Podar, Dorina; Pearson, Delaina; Kusi, Nana Yaw O.; Duda, Bogdan
Source:
Journal of environmental management 2018 v.210 pp. 210-225
ISSN:
0301-4797
Subject:
X-radiation; absorption; bark; cadmium; copper; fluorescence; grasses; heavy metals; herbaceous plants; iron; lead; leaves; models; ovens; phytoremediation; prediction; soil; spectrometers; spectroscopy; statistics; thatch; toxicity; trees; vegetation; wet digestion method; zinc; Romania
Abstract:
... Elemental concentrations in vegetation are of critical importance, whether establishing plant essential element concentrations (toxicity vs. deficiency) or investigating deleterious elements (e.g., heavy metals) differentially extracted from the soil by plants. Traditionally, elemental analysis of vegetation has been facilitated by acid digestion followed by quantification via inductively coupled ...
DOI:
10.1016/j.jenvman.2018.01.003

58. Relationship between branch-scar parameters and knot features of oriental beech (Fagus orientalis Libsky)

Author:
Torkaman, Javad; Vaziri, Mojgan; Sandberg, Dick; Mohammadi Limaei, Soleiman
Source:
Wood material science and engineering 2018 v.13 no.2 pp. 117-120
ISSN:
1748-0280
Subject:
Fagus sylvatica subsp. orientalis; Fagus sylvatica subsp. sylvatica; bark; computer software; engineering; image analysis; knots; materials science; models; sawlogs; stems; trees
Abstract:
... The classification of roundwood is inextricably linked to the measurement of a particular single wood defect. The appearance, location, and number of defects are important in the quality evaluation of logs and sawn timber, and the most important defects are knots. The purpose of this study was to investigate the relationship between the appearance of branch scars and features of the related knot i ...
DOI:
10.1080/17480272.2018.1424731

59. Ecological Factors Influencing Norway Spruce Regeneration on Nurse Logs in a Subalpine Virgin Forest

Author:
Stroheker, Sophie; Weiss, Marc; Sieber, Thomas N.; Bugmann, Harald
Source:
Forests 2018 v.9 no.3
ISSN:
1999-4907
Subject:
Picea abies; altitude; bark; brown-rot fungi; coarse woody debris; forest litter; models; montane forests; mosses and liverworts; seedlings; threatened species; trees; virgin forests; wood; Alps region; Switzerland
Abstract:
... Regeneration of Picea abies in high-elevation mountain forests often depends on the presence of coarse woody debris (CWD), as logs provide sites with more favorable conditions for spruce regeneration compared to the forest floor. However, there is little quantitative knowledge on the factors that are conducive to or hindering spruce establishment on CWD. We examined spruce regeneration on CWD by s ...
DOI:
10.3390/f9030120

60. Visual cues for woodpeckers: light reflectance of decayed wood varies by decay fungus

Author:
O'Daniels, Sean T.; Kesler, Dylan C.; Mihail, Jeanne D.; Webb, Elisabeth B.; Werner, Scott J.
Source:
The Wilson journal of ornithology 2018 v.130 no.1 pp. 200-212
ISSN:
1559-4491
Subject:
bark; color; decay fungi; decayed wood; egg shell; flowers; foraging; fruits; life history; light; models; reflectance; reflectance spectroscopy; tree cavities; trees; vision; wafers; woodpeckers
Abstract:
... The appearance of wood substrates is likely relevant to bird species with life histories that require regular interactions with wood for food and shelter. Woodpeckers detect decayed wood for cavity placement or foraging, and some species may be capable of detecting trees decayed by specific fungi; however, a mechanism allowing for such specificity remains unidentified. We hypothesized that decay f ...
DOI:
10.1676/16-171.1

61. Wildlife implications across snag treatment types in jack pine stands of Upper Michigan

Author:
Weiss, Shelby A.; Corace, R. Gregory; Toman, Eric L.; Herms, Daniel A.; Goebel, P. Charles
Source:
Forest ecology and management 2018 v.409 pp. 407-416
ISSN:
0378-1127
Subject:
Picidae; Pinus banksiana; analysis of variance; bark; biodiversity; birds; environmental factors; foraging; forests; girdling; insects; models; prediction; prescribed burning; snags; tree trunk; trees; wildlife; wildlife habitats; wind; wood properties; Great Lakes region; Michigan
Abstract:
... Standing dead trees, or snags, represent post-disturbance biological legacies in forest ecosystems, and intentional creation of new snags is increasingly common during forest treatments. The abundance, volume, size, and distribution of snags can affect wildlife communities and stand-level biological diversity. Characteristics such as the wood properties of different tree species, environmental con ...
DOI:
10.1016/j.foreco.2017.10.013

62. Moisture transport and sorption in beech and spruce barks

Author:
Rémond, Romain; Barros, Livia Cipriano Almeida; Almeida, Giana
Source:
Holzforschung 2018 v.72 no.2 pp. 105-111
ISSN:
1437-434X
Subject:
Fagus sylvatica; Picea abies; bark; bound water; diffusivity; hygroscopicity; models; relative humidity; sorption; sorption isotherms; trees; wood
Abstract:
... The bark-water relation and the moisture transport in bark are essential for the living tree but also for the industrial utilization of bark. Thus the bark-water relation of beech (Fagus sylvatica) and spruce (Picea abies) have been studied in the present work. The sorption isotherms were determined at 35°C for both wood and bark and the water diffusivity was measured under steady state conditions ...
DOI:
10.1515/hf-2017-0066

63. Biomass functions and nutrient contents of European beech, oak, sycamore maple and ash and their meaning for the biomass supply chain

Author:
Husmann, Kai; Rumpf, Sabine; Nagel, Jürgen
Source:
Journal of cleaner production 2018 v.172 pp. 4044-4056
ISSN:
0959-6526
Subject:
Acer pseudoplatanus; Fagus sylvatica subsp. sylvatica; Fraxinus; Quercus; bark; biomass; branches; deciduous forests; forest stands; industry; models; nutrient content; prediction; processing technology; raw materials; regression analysis; stemwood; supply chain; tree and stand measurements; trees; wood utilization; Germany
Abstract:
... Woody biomass from forests has great potential to provide a continuous and largely carbon-neutral raw material supply for the biobased industry. As the demand for forestry products is already very high and steadily increasing, the question arises how to match the limited available wood resources to the growing demand for raw materials. Thus, there is an initial need to properly estimate the availa ...
DOI:
10.1016/j.jclepro.2017.03.019

64. A New Method for Characterizing Bark Microrelief Using 3D Vision Systems

Author:
Sioma, Andrzej; Socha, Jarosław; Klamerus-Iwan, Anna
Source:
Forests 2018 v.9 no.1
ISSN:
1999-4907
Subject:
Alnus glutinosa; Fraxinus excelsior; Pinus sylvestris; Populus tremuloides; automation; bark; computer vision; digital images; ecophysiology; epiphytes; foraging; forest canopy; forest ecosystems; image analysis; insects; microbial communities; microrelief; models; stemflow; texture; trees; vegetation; Northern European region; Poland
Abstract:
... Bark microrelief (BM), or the spatial patterning of bark texture, is an important bark characteristic shown to significantly affect the ecophysiological functioning of forest ecosystems. BM influences bark micrometeorological conditions and stemflow generation which, in turn, impacts epiphytic vegetation and microbial community patterns, as well as insect foraging behavior. Thus, an objective meth ...
DOI:
10.3390/f9010030

65. Comparison of taper functions applied to eucalypts of varying genetics in Brazil: application and evaluation of the penalized mixed spline approach

Author:
Scolforo, Henrique Ferraco; McTague, John Paul; Raimundo, Marcel Regis; Weiskittel, Aaron; Carrero, Omar; Scolforo, Jose Roberto Soares
Source:
Canadian journal of forest research 2018 v.48 no.5 pp. 568-580
ISSN:
1208-6037
Subject:
Eucalyptus; bark; genetics; models; prediction; statistical analysis; tree classes; trees; Brazil
Abstract:
... Taper functions have been widely used with an existing array of model forms and methods; however, comparisons of contrasting statistical methods have been more limited. This study aimed to assess contrasting statistical approaches for achieving accurate stem taper and individual-tree volume predictions, with a focus on the novel penalized mixed spline (PMS) approach. The approaches were tested usi ...
DOI:
10.1139/cjfr-2017-0366

66. Influence of different forest protection strategies on spruce tree mortality during a bark beetle outbreak

Author:
Mezei, Pavel; Blaženec, Miroslav; Grodzki, Wojciech; Škvarenina, Jaroslav; Jakuš, Rastislav
Source:
Annals of forest science 2017 v.74 no.4 pp. 65
ISSN:
1286-4560
Subject:
Ips typographus; Picea abies; autocorrelation; bark; bark beetles; biodiversity; conservation areas; cutting; environmental factors; forest stands; heat sums; keystone species; models; mountains; temperature; tree mortality; trees; wind
Abstract:
... KEY MESSAGE: Under an outbreak scenario in a buffer zone of a protected area, bark beetle-caused tree mortality was modulated by earlier natural disturbances (wind and bark beetles), sanitary management and seasonal temperature. In buffer zones, the effects of sanitary management on tree mortality remained limited due to the migration of bark beetles from unmanaged areas. CONTEXT: The European spr ...
DOI:
10.1007/s13595-017-0663-9

67. The colonisation of Scots pine (Pinus sylvestris L.) by Tomicus minor Hartig in southern Poland: modelling and monitoring

Author:
Borkowski, Andrzej
Source:
European journal of forest research 2017 v.136 no.5-6 pp. 893-906
ISSN:
1612-4669
Subject:
Curculionidae; Pinus sylvestris; Tomicus minor; bark; conservation areas; death; eggs; forest ecosystems; forests; habitats; models; monitoring; regression analysis; sawmills; trees; Poland
Abstract:
... Tomicus minor Hartig (Col., Curculionidae, Scolytinae), occurring on Pinus sylvestris L., is a species which demonstrates high reproductive capability on weakened stands, accelerating the process of forest death. In protected areas, T. minor is regarded as a sensitive bioindicator that reacts to decline in the health and vitality of forests. Although there have been many publications concerning T. ...
DOI:
10.1007/s10342-017-1078-8

68. Compatible System for Predicting Total and Merchantable Stem Volume over and under Bark, Branch Volume and Whole-Tree Volume of Pine Species

Author:
Corral-Rivas, José Javier; Vega-Nieva, Daniel Jose; Rodríguez-Soalleiro, Roque; López-Sánchez, Carlos Antonio; Wehenkel, Christian; Vargas-Larreta, Benedicto; Álvarez-González, Juan Gabriel; Ruiz-González, Ana Daría
Source:
Forests 2017 v.8 no.11
ISSN:
1999-4907
Subject:
Pinus; autocorrelation; bark; bioenergy; carbon footprint; equations; forests; models; planning; prediction; sustainable forestry; tree trunk; trees; Mexico
Abstract:
... Accurate quantification of branch volume in trees is important for sustainable forest management, especially as these fractions are increasingly used for bioenergy, and for precise forest CO2 quantification. Whereas a large focus has been placed on the compatible estimation of tree taper and bole volume with and without bark, little effort has been made to develop models that allow a si ...
DOI:
10.3390/f8110417

69. Evaluation of stem taper models fitted for Japanese cedar (Cryptomeria japonica) in the subtropical forests of Jeju Island, Korea

Author:
Lumbres, Roscinto Ian C.; Seo, Yeon Ok; Joo, Sung-Hyun; Jung, Sung Cheol
Source:
Forest science and technology 2017 v.13 no.4 pp. 181-186
ISSN:
2158-0715
Subject:
Cryptomeria japonica; bark; equations; managers; models; prediction; statistics; tree and stand measurements; trees; tropical forests; South Korea
Abstract:
... This study was conducted to evaluate the performance of the five stem taper models in predicting the diameter over bark at any given height (d) and total volume of Japanese cedar (Cryptomeria japonica D.Don) in the subtropical forests of Korea. The four fit statistics used in this study were standard error of estimate (SEE), mean bias (), mean absolute bias (MAB), and coefficient of determination ...
DOI:
10.1080/21580103.2017.1393018

70. Spatial distributions and enantiomeric signatures of DDT and its metabolites in tree bark from agricultural regions across China

Author:
Niu, Lili; Xu, Chao; Zhang, Chunlong; Zhou, Yuting; Zhu, Siyu; Liu, Weiping
Source:
Environmental pollution 2017 v.229 pp. 111-118
ISSN:
0269-7491
Subject:
DDT (pesticide); air; atmospheric deposition; bark; dicofol; enantiomers; foams; metabolites; models; particulates; pollutants; polyurethanes; soil; trees; China
Abstract:
... Tree bark is considered as an effective passive sampler for estimating the atmospheric status of pollutants. In this study, we conducted a national scale tree bark sampling campaign across China. Concentration profiles revealed that Eastern China, especially the Jing-Jin-Ji region (including Hebei Province, Beijing and Tianjin) was a hot spot of bark DDT pollution. The enantioselective accumulatio ...
DOI:
10.1016/j.envpol.2017.05.055

71. Species comparison of the physical properties of loblolly and slash pine wood and bark

Author:
Eberhardt, Thomas L.; Dahlen, Joseph; Schimleck, Laurence
Source:
Canadian journal of forest research = 2017 v.47 no.11 pp. 1495-1505
ISSN:
1208-6037
Subject:
Pinus elliottii; Pinus taeda; agricultural land; bark; biomass; coniferous forests; fire suppression; models; natural regeneration; physical properties; planting; specific gravity; trees; water content; wood; wood properties
Abstract:
... Composition of the southern pine forest is now predominated by two species, loblolly pine (Pinus taeda L.) and slash pine (Pinus elliottii Engelm.), owing to fire suppression activities, natural regeneration on abandoned agricultural lands, and extensive planting. Comparison of the wood and bark physical properties of these pines is of interest in terms of the yields of usable biomass and, for the ...
DOI:
10.1139/cjfr-2017-0091

72. Comparison of remote sensing based RFID and standard tree marking for timber harvesting

Author:
Pichler, Gerhard; Poveda Lopez, Jose Alejandro; Picchi, Gianni; Nolan, Enda; Kastner, Maximilian; Stampfer, Karl; Kühmaier, Martin
Source:
Computers and electronics in agriculture 2017 v.140 pp. 214-226
ISSN:
0168-1699
Subject:
automation; bark; chalk; forest inventory; forest management; forest stands; foresters; harvesting; logging; models; montane forests; radio frequency identification; remote sensing; trees; Austria
Abstract:
... Forest inventory is the basis for creating forest management plan. In Europe, forest inventory data is usually collected manually by standard survey methods based on sampling procedures. The information from forest management plan to execute silvicultural and harvesting treatments is transferred to the field by standard tree marking methods e.g. marking spray, marking tape, chalk, bark blazer and ...
DOI:
10.1016/j.compag.2017.05.030

73. Allometric Equations for Estimating Biomass and Carbon Stocks in the Temperate Forests of North-Western Mexico

Author:
Vargas-Larreta, Benedicto; López-Sánchez, Carlos Antonio; Corral-Rivas, José Javier; López-Martínez, Jorge Omar; Aguirre-Calderón, Cristóbal Gerardo; Álvarez-González, Juan Gabriel
Source:
Forests 2017 v.8 no.8
ISSN:
1999-4907
Subject:
Pinus; aboveground biomass; allometry; artificial intelligence; bark; carbon; carbon sinks; combustion; data collection; equations; leaves; models; stemwood; temperate forests; tree and stand measurements; tree height; trees; variance; Mexico
Abstract:
... This paper presents new equations for estimating above-ground biomass (AGB) and biomass components of seventeen forest species in the temperate forests of northwestern Mexico. A data set corresponding to 1336 destructively sampled oak and pine trees was used to fit the models. The generalized method of moments was used to simultaneously fit systems of equations for biomass components and AGB, to e ...
DOI:
10.3390/f8080269

74. Moisture content correction: Implications of measurement errors on tree- and site-based estimates of biomass

Author:
Paul, Keryn I.; Roxburgh, Stephen H.; Larmour, John S.
Source:
Forest ecology and management 2017 v.392 pp. 164-175
ISSN:
0378-1127
Subject:
Monte Carlo method; aboveground biomass; bark; branches; carbon; cost effectiveness; data collection; ecosystems; leaves; models; prediction; remote sensing; shrubs; stemwood; tree trunk; trees; water content
Abstract:
... Accurate estimates of biomass are required for relating ecosystem functioning to atmospheric carbon regulation. Biomass may be directly measured through field sampling, which can then be used to calibrate biomass predictions from remote sensing and/or modelling. Field sampling generally entails measuring the fresh mass of individual trees or shrubs and then estimating the moisture contents of a re ...
DOI:
10.1016/j.foreco.2017.02.007

75. Modelling the economically viable wood in the crown of European beech trees

Author:
Husmann, Kai; Möhring, Bernhard
Source:
Forest policy and economics 2017 v.78 pp. 67-77
ISSN:
1389-9341
Subject:
Fagus sylvatica subsp. sylvatica; bark; branches; deciduous forests; economic sustainability; forest stands; forestry development; income; models; prediction; regression analysis; tree and stand measurements; trees; wood; Germany
Abstract:
... Long-term forest development programs in Germany aim on an increase of close-to-nature broadleaf forest stands. This means that the economic importance of European beech is expected to increase. The economic potential of a tree basically consists of the stem as well as the economically viable wood volume in the crown. Due to the high morphological variability of European beech crowns, taper models ...
DOI:
10.1016/j.forpol.2017.01.009

76. Phosphorus-nutrition of European beech (Fagus sylvatica L.) during annual growth depends on tree age and P-availability in the soil

Author:
Netzer, Florian; Schmid, Cora; Herschbach, Cornelia; Rennenberg, Heinz
Source:
Environmental and experimental botany 2017 v.137 pp. 194-207
ISSN:
0098-8472
Subject:
Fagus sylvatica subsp. sylvatica; adults; bark; forest ecosystems; leaves; mature plants; models; nutrition; phloem; phosphorus; progeny; resorption; roots; sap; seasonal variation; soil; spring; tree age; trees; winter; wood; xylem; Germany
Abstract:
... Forest ecosystems have often developed on phosphorus (P) −limited soils and, thus, are thought to require an efficient P-nutrition strategy during annual growth to sustain sufficient P-supply for growth and development. The present study was aimed at characterizing seasonal changes in P-composition and concentrations in different organs and transport tissues of mature and young European beech (Fag ...
DOI:
10.1016/j.envexpbot.2017.02.009

77. Characterization and Modeling of Polycyclic Aromatic Compound Uptake into Spruce Tree Wood

Author:
Rauert, Cassandra; Kananathalingam, Ajitha; Harner, Tom
Source:
Environmental science & technology 2017 v.51 no.9 pp. 5287-5295
ISSN:
1520-5851
Subject:
Picea pungens; air; aromatic compounds; bark; cambium; clearcutting; emissions; forest fires; forests; models; monitoring; octanol; partition coefficients; solubility; trees; wood
Abstract:
... This study highlights the potential of uptake into tree inner wood via direct-transfer through bark, as one contributing mechanism to describe atmospheric uptake of polycyclic aromatic compounds (PACs) into trees. The uptake of PACs into blue spruce tree wood was measured, with wood–air partition coefficients (KWOOD_AIR) determined for five PACs. A correlation between the octanol-air partition coe ...
DOI:
10.1021/acs.est.7b01297

78. Protective effects of proanthocyanidins extracts from the bark of deciduous trees in lipid systems

Author:
Janceva, Sarmite; Lauberte, Liga; Dizhbite, Tatiana; Krasilnikova, Jelena; Telysheva, Galina; Dzenis, Marcis
Source:
Holzforschung 2017 v.71 no.7-8 pp. 675-680
ISSN:
1437-434X
Subject:
Alnus glutinosa; Alnus incana; Salix caprea; absorption; amylases; antioxidant activity; antioxidants; bark; blood plasma; carbohydrate metabolism; cosmetics; digestion; humans; hydroquinone; in vitro studies; industry; lipids; mayonnaise; models; proanthocyanidins; protective effect; pyruvic acid; trees; triacylglycerol lipase
Abstract:
... Oligomeric proanthocyanidins (OPC) rich extracts (OPCEs) were isolated by sequential extraction from the bark of the deciduous trees grey alder (Alnus incana), black alder (Alnus glutinosa) and goat willow (Salix caprea). The yields of OPCE from all barks under study were rather similar and varied between 12.3% and 15.4% based on the oven dry (o.d.) bark. Content of proanthocyanidins in OPCEs rang ...
DOI:
10.1515/hf-2016-0185

79. Comparison of models for estimating bark thickness of Picea abies in southwest Germany: the role of tree, stand, and environmental factors

Author:
Stängle, StefanM.; Sauter, UdoH.; Dormann, CarstenF.
Source:
Annals of forest science 2017 v.74 no.1 pp. 16
ISSN:
1286-4560
Subject:
Picea abies; atmospheric precipitation; autocorrelation; bark; climatic factors; data collection; equations; forestry; forests; models; prediction; temperature; tree age; trees; Germany
Abstract:
... KEY MESSAGE: Bark thickness was shown to vary between regions, stands, and trees. Bark thickness prediction equations of different model complexity can be suggested depending on the purpose of application. Site and stand conditions, which influence variation of growth rate to a large extent, seem to have a strong influence on bark thickness, with better site quality leading to smaller relative bar ...
DOI:
10.1007/s13595-016-0601-2

80. Convergence of bark investment according to fire and climate structures ecosystem vulnerability to future change

Author:
Pellegrini, Adam F. A.; Anderegg, William R. L.; Paine, C. E. Timothy; Hoffmann, William A.; Kartzinel, Tyler; Rabin, Sam S.; Sheil, Douglas; Franco, Augusto C.; Pacala, Stephen W.
Source:
Ecology letters 2017 v.20 no.3 pp. 307-316
ISSN:
1461-023X
Subject:
bark; biogeography; deciduous forests; ecosystems; fire regime; fire resistance; fires; geographical variation; models; savannas; trees; tropical rain forests; tropics
Abstract:
... Fire regimes in savannas and forests are changing over much of the world. Anticipating the impact of these changes requires understanding how plants are adapted to fire. In this study, we test whether fire imposes a broad selective force on a key fire‐tolerance trait, bark thickness, across 572 tree species distributed worldwide. We show that investment in thick bark is a pervasive adaptation in f ...
DOI:
10.1111/ele.12725

81. Local epiphyte establishment and future metapopulation dynamics in landscapes with different spatiotemporal properties

Author:
Belinchón, Rocío; Harrison, Philip J.; Mair, Louise; Várkonyi, Gergely; Snäll, Tord
Source:
Ecology 2017 v.98 no.3 pp. 741-750
ISSN:
0012-9658
Subject:
Lobaria; bark; cutting; data collection; epiphytes; forestry; forests; habitat fragmentation; habitats; landscapes; lichens; models; population growth; probability; roughness; soil; sowing; species dispersal; tree mortality; trees
Abstract:
... Understanding the relative importance of different ecological processes on the metapopulation dynamics of species is the basis for accurately forecasting metapopulation size in fragmented landscapes. Successful local colonization depends on both species dispersal range and how local habitat conditions affect establishment success. Moreover, there is limited understanding of the effects of differen ...
DOI:
10.1002/ecy.1686

82. Is there nothing new under the sun? The influence of herbals and pharmacopoeias on ethnobotanical traditions in Albacete (Spain)

Author:
Rivera, Diego; Verde, Alonso; Obón, Concepción; Alcaraz, Francisco; Moreno, Candelaria; Egea, Teresa; Fajardo, José; Palazón, José Antonio; Valdés, Arturo; Signorini, Maria Adele; Bruschi, Piero
Source:
Journal of ethnopharmacology 2017 v.195 pp. 96-117
ISSN:
0378-8741
Subject:
Apis mellifera; Bayesian theory; Cinnamomum verum; Convolvulus; Crocus sativus; Markov chain; Nardostachys; Olea europaea; Pistacia lentiscus; Rosa gallica; Santalum album; Vitis vinifera; Zingiber officinale; bark; cluster analysis; ethnobotany; flowers; fruits; grapes; herbal medicines; homeopathic drugs; honey; indigenous knowledge; ingredients; inventories; leaves; medicinal plants; models; phytotherapy; pistil; raisins; rhizomes; roots; rural areas; tariffs; traditional medicine; traditions; trees; wood; Italy; Spain
Abstract:
... This paper has two overarching aims: (1) presenting the results of studying the Albacete tariff of medicines of 1526 and (2) broadly analyzing the origin and influences of medicinal traditional knowledge in the region of Albacete, Spain. We use historical and modern literature that may have influenced this knowledge. Our primary goal was to determine the ingredients used in the pharmacy in the 16t ...
DOI:
10.1016/j.jep.2016.11.040

83. Improving biomass estimation for Eucalyptus globulus Labill at stand level in Portugal

Author:
Oliveira, Tânia Sofia; Tomé, Margarida
Source:
Biomass and bioenergy 2017 v.96 pp. 103-111
ISSN:
0961-9534
Subject:
wood; Eucalyptus globulus; allometry; equations; aboveground biomass; models; short rotation forestry; stand density; trees; forest inventory; stand age; bark; branches; stand basal area; leaves; prediction; Portugal
Abstract:
... Two systems of equations for predicting stand level aboveground biomass and biomass per tree component (wood, bark, branches and leaves) were developed taking into consideration the specific characteristics of the stands. The two systems differ by considering or not stand age as one of the regressors. Data from permanent plot, trials and continuous forestry inventory was used. It included data fro ...
DOI:
10.1016/j.biombioe.2016.11.010

84. Higher sensitivity and lower specificity in post-fire mortality model validation of 11 western US tree species

Author:
Kane, Jeffrey M.; van Mantgem, Phillip J.; Lalemand, Laura B.; Keifer, MaryBeth
Source:
The International journal of wildland fire 2017 v.26 no.5 pp. 444-454
ISSN:
1049-8001
Subject:
dead wood; data collection; models; model validation; multipliers; trees; U.S. National Park Service; prescribed burning; bark; tree mortality; mortality; Western United States
Abstract:
... Managers require accurate models to predict post-fire tree mortality to plan prescribed fire treatments and examine their effectiveness. Here we assess the performance of a common post-fire tree mortality model with an independent dataset of 11 tree species from 13 National Park Service units in the western USA. Overall model discrimination was generally strong, but performance varied considerably ...
DOI:
10.1071/WF16081

85. Use of upper stem diameters in a polynomial taper equation for New Zealand radiata pine: an evaluation

Author:
Sabatia, Charles O.
Source:
New Zealand journal of forestry science 2016 v.46 no.1 pp. 14
ISSN:
1179-5395
Subject:
Pinus radiata; bark; data collection; equations; model validation; models; prediction; tree trunk; trees; New Zealand
Abstract:
... BACKGROUND: Polynomial taper models are the tree profile equation types that are most commonly used to describe stem profiles of New Zealand radiata pine (Pinus radiata D.Don). Among these equations are model forms that include an upper stem diameter measurement as a predictor. Such taper functions may be more costly to use given the need to measure the additional stem diameter. Therefore, it is i ...
DOI:
10.1186/s40490-016-0070-2

86. Spatiotemporal factors affecting bark stripping of conifer trees by Asiatic black bears (Ursus thibetanus) in Japan

Author:
Kobashikawa, Shoko; Koike, Shinsuke
Source:
Forest ecology and management 2016 v.380 pp. 100-106
ISSN:
0378-1127
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; Ursus thibetanus; bark; conifers; forest management; foresters; forests; growth rings; managers; models; plantations; temporal variation; tree damage; tree trunk; trees; Japan
Abstract:
... Bark stripping by Asiatic black bears (Ursus thibetanus) has a serious impact on conifer plantations in Japan, resulting in physical damage to the tree trunks and reduction of the value of the timber. The aim of this study was to clarify whether these plantations are more prone to damage by bears at particular times and sites, to more effectively prevent this damaging behavior. The study was condu ...
DOI:
10.1016/j.foreco.2016.08.042

87. Development and test of a simplified method to calculate dry matter loss during open-air storage of poplar wood chips by analysing ash contents

Author:
Lenz, Hannes; Pecenka, Ralf; Hartung, Eberhard; Idler, Christine
Source:
Biomass and bioenergy 2016 v.94 pp. 258-267
ISSN:
0961-9534
Subject:
ash content; bark; coppicing; cutting; drying; fuels; methodology; models; particle size; trees; weather; wood; wood chips
Abstract:
... Short rotation coppice (SRC) in agriculture can be established successfully, only if the entire process chain is economically competitive. Despite the substantial dry matter loss (up to 25%) occurring during open-air storage of wood chips, it is the most applied storage technique. Since the particle size of wood chips plays an important role in storage and drying processes, two storage piles (>500 ...
DOI:
10.1016/j.biombioe.2016.09.011

88. Silica uptake and release in live and decaying biomass in a northern hardwood forest

Author:
Clymans, Wim; Conley, Daniel J.; Battles, John J.; Frings, Patrick J.; Koppers, Mary Margaret; Likens, Gene E.; Johnson, Chris E.
Source:
Ecology 2016 v.97 no.11 pp. 3044-3057
ISSN:
0012-9658
Subject:
Acer saccharum subsp. saccharum; Betula alleghaniensis; Fagus grandifolia; bark; biomass; coarse woody debris; deforestation; forest damage; forest ecosystems; forest litter; hardwood forests; leaves; models; silica; silicon; soil solution; tree trunk; trees; watersheds; weathering; wood; New Hampshire
Abstract:
... In terrestrial ecosystems, a large portion (20–80%) of the dissolved Si (DSi) in soil solution has passed through vegetation. While the importance of this “terrestrial Si filter” is generally accepted, few data exist on the pools and fluxes of Si in forest vegetation and the rate of release of Si from decomposing plant tissues. We quantified the pools and fluxes of Si through vegetation and coarse ...
DOI:
10.1002/ecy.1542

89. Investigation of spatial distributions and sources of persistent organic pollutants (POPs) in a heavily polluted industrial region using tree components

Author:
Odabasi, Mustafa; Dumanoglu, Yetkin; Ozgunerge Falay, Ezgi; Tuna, Gizem; Altiok, Hasan; Kara, Melik; Bayram, Abdurrahman; Tolunay, Doganay; Elbir, Tolga
Source:
Chemosphere 2016 v.160 pp. 114-125
ISSN:
0045-6535
Subject:
air; bark; factor analysis; inventories; models; naphthalenes; persistent organic pollutants; polybrominated diphenyl ethers; polychlorinated biphenyls; soil; soil sampling; trees; vegetation; Turkey (country)
Abstract:
... Spatial distributions of persistent organic pollutants (POPs) were investigated in Iskenderun industrial region in Turkey. POP concentrations were measured in different tree components (i.e., pine needle, branch, bark, and stem) collected at several industrial and background sites (n = 27). Also, air, litter, and soil samples were analyzed to determine the relationship of atmospheric pollutants wi ...
DOI:
10.1016/j.chemosphere.2016.06.076

90. Remoteness from sources of persistent organic pollutants in the multi-media global environment

Author:
Göktaş, Recep Kaya; MacLeod, Matthew
Source:
Environmental pollution 2016 v.217 pp. 33-41
ISSN:
0269-7491
Subject:
aerosols; air; bark; data collection; dry deposition; emissions; half life; human population; hydrophilicity; hydroxyl radicals; meteorological data; models; monitoring; persistent organic pollutants; polybrominated diphenyl ethers; seasonal variation; temperature; trees
Abstract:
... Quantifying the remoteness from sources of persistent organic pollutants (POPs) can inform the design of monitoring studies and the interpretation of measurement data. Previous work on quantifying remoteness has not explicitly considered partitioning between the gas phase and aerosols, and between the atmosphere and the Earth's surface. The objective of this study is to present a metric of remoten ...
DOI:
10.1016/j.envpol.2015.12.058

91. Variation in total and volatile carbon concentration among the major tree species of the boreal forest

Author:
Gao, Bilei; Taylor, Anthony R.; Chen, Han Y.H.; Wang, Jian
Source:
Forest ecology and management 2016 v.375 pp. 191-199
ISSN:
0378-1127
Subject:
bark; boreal forests; carbon; carbon sinks; emissions; life history; models; prediction; shade tolerance; stemwood; trees
Abstract:
... Understanding variation in carbon (C) concentration of live trees is essential for quantifying forest C stocks and validating forest C accounting models. Previous studies in boreal forests have assumed 50% C concentration or focused on species-specific C concentration estimation based on samples taken mostly from stemwood tissue of large trees. Yet, little is known about differences in C concentra ...
DOI:
10.1016/j.foreco.2016.05.041

92. A preliminary investigation into the use of Red Pine (Pinus Resinosa) tree cores as historic passive samplers of POPs in outdoor air

Author:
Rauert, Cassandra; Harner, Tom
Source:
Atmospheric environment 2016 v.140 pp. 514-518
ISSN:
1352-2310
Subject:
Pinus resinosa; air; atmospheric chemistry; bark; cambium; dendrochronology; flame retardants; growth rings; models; monitoring; permeability; persistent organic pollutants; polybrominated diphenyl ethers; polycyclic aromatic hydrocarbons; samplers; tree growth; trees; Canada
Abstract:
... The suitability of Red Pine trees (Pinus Resinosa) to act as passive samplers for persistent organic pollutants (POPs) in outdoor air and to provide historic information on air concentration trends was demonstrated in this preliminary investigation. Red Pine tree cores from Toronto, Canada, were tested for polycyclic aromatic hydrocarbon (PAHs), alkylated-PAHs, nitro and oxy-PAHs, polybrominated d ...
DOI:
10.1016/j.atmosenv.2016.06.024

93. Long-term effects of pest-induced tree species change on carbon and nitrogen cycling in northeastern U.S. forests: A modeling analysis

Author:
Crowley, Katherine F.; Lovett, Gary M.; Arthur, Mary A.; Weathers, Kathleen C.
Source:
Forest ecology and management 2016 v.372 pp. 269-290
ISSN:
0378-1127
Subject:
Acer rubrum; Acer saccharum subsp. saccharum; Adelges tsugae; Betula alleghaniensis; Fagus grandifolia; Quercus rubra; Tsuga canadensis; bark; carbon; carbon sequestration; death; forest ecosystems; forest litter; forests; invasive species; leaching; long term effects; losses from soil; models; nitrates; nitrogen; nitrogen cycle; pathogens; prediction; species diversity; trees; wood; Northeastern United States
Abstract:
... Invasive insects and pathogens can cause long-term changes in forest ecosystems by altering tree species composition, which can radically alter forest biogeochemistry. To examine how tree species change may alter long-term carbon (C) and nitrogen (N) cycling in northeastern U.S. forests, we developed a new forest ecosystem model, called Spe-CN, that allows species composition to shift over time. W ...
DOI:
10.1016/j.foreco.2016.03.045
Chorus Open Access:
10.1016/j.foreco.2016.03.045

94. Elevated bark temperature in unremoved stumps after disturbances facilitates multi-voltinism in Ips typographus population in a mountainous forest

Author:
Fleischer, Peter; Fleischer, Peter; Ferenčík, Ján; Hlaváč, Pavol; Kozánek, Milan
Source:
Lesnicky casopis 2016 v.62 no.1 pp. 15-22
ISSN:
0323-1046
Subject:
Ips typographus; Picea abies; bark; bark beetles; forestry; forests; models; national parks; natural resource management; phenology; pheromone traps; population growth; population size; risk; stakeholders; stumps; temperature; trees; weather
Abstract:
... The number of Ips typographus generations developed in a year might be indicative of its population size and of risk to Norway spruce forests. Warm weather and unremoved fallen trees after natural disturbances are thought of as key factors initiating large population increase. We studied I. typographus development in a spruce forest of the Tatra National Park, which was heavily affected by large-s ...
DOI:
10.1515/forj-2016-0002

95. Exchange of organohalogen compounds between air and tree bark in the Yellow River region

Author:
He, Chang; Jin, Jun; Li, Guangyao; Wang, Ying
Source:
Chemosphere 2016 v.153 pp. 478-484
ISSN:
0045-6535
Subject:
air; bark; correlation; lipids; models; organochlorine pesticides; polybrominated diphenyl ethers; polychlorinated biphenyls; trees; Yellow River
Abstract:
... Organohalogen compound concentrations in paired air and bark samples from the Yellow River region were determined. Overall, the organohalogen compound concentrations were higher in the samples from the lower than from the upper Yellow River region. The polybrominated diphenyl ether, polychlorinated biphenyl, and organochlorine pesticide concentrations were 310–5200, 0.92–3.8, and 120–6700 pg m−3, ...
DOI:
10.1016/j.chemosphere.2016.03.089

96. Improved models of harvest-induced bark damage

Author:
Nakou, Aikaterini; Sauter, Udo Hans; Kohnle, Ulrich
Source:
Annals of forest science 2016 v.73 no.2 pp. 233-246
ISSN:
1286-4560
Subject:
harvesting; logging; managers; quantitative analysis; models; regression analysis; trees; bark; case studies; Markov chain
Abstract:
... KEY MESSAGE : We provided a precise quantitative analysis of the factors at the origin of bark damage during harvesting operations and developed a model able to predict them accurately. The major factors were the distance of trees to skid trails, the intensity of removals, the harvesting system as well as the interactions between the distance of trees to skid trails with harvesting systems, the av ...
DOI:
10.1007/s13595-015-0530-5

97. The essential oil components of Cinnamomum cassia: an analysis under different thinning models of plantation Pinus massoniana

Author:
Tao, Dayan; Li, Yuanfa; Lu, Daodiao; Luo, Yehong; Yu, Sufang; Ye, Shaoming
Source:
Journal of forestry research 2016 v.27 no.3 pp. 707-717
ISSN:
1007-662X
Subject:
Cinnamomum aromaticum; Pinus massoniana; aldehydes; bark; branches; canopy; economic feasibility; essential oils; forest management; forests; leaves; lipid content; mixed stands; models; oils; planting; trees
Abstract:
... Thinning is an important activity employed in forest management. To date, studies have mainly focused on the effects of thinning on the growth of trees during the same thinning period. In this study, plantation Pinus massoniana Lamb. near maturity were thinned at varying intensities and an economically important species, Cinnamomum cassia Presl., was planted beneath the thinned canopy. The aim of ...
DOI:
10.1007/s11676-015-0192-z

98. Predicting Aboveground Biomass in Second Growth Coast Redwood: Comparing Localized with Generic Allometric Models

Author:
Kizha, Anil Raj; Han, Han-Sup
Source:
Forests 2016 v.7 no.5
ISSN:
1999-4907
Subject:
Sequoia sempervirens; aboveground biomass; allometry; bark; coasts; dead wood; leaves; models; prediction; second growth; tree and stand measurements; tree height; tree trunk; trees; wood; California
Abstract:
... Biomass amounts predicted by generalized models are often not applicable for small regions. Localized allometric models were developed relating tree/biomass components to diameter at breast height (dbh) for coast redwood (Sequoia sempervirens (D. Don) Endl.) from an industrial timberland in northwestern California, USA. dbh for the candidate trees ranged from 2.54 cm to 84.07 cm. Biomass of tree c ...
DOI:
10.3390/f7050096

99. A taper function for Pseudotsuga menziesii plantations in Spain

Author:
López-Sánchez, Carlos A; Rodríguez-Soalleiro, Roque; Castedo-Dorado, Fernando; Corral-Rivas, Sacramento; Álvarez-González, Juan G
Source:
Southern forests 2016 v.78 no.2 pp. 131-135
ISSN:
2070-2639
Subject:
Pseudotsuga menziesii; autocorrelation; bark; equations; forests; models; plantations; trees; Spain
Abstract:
... Five stem taper models belonging to three different taper function categories were fitted to data corresponding to 282 Pseudotsuga menziesii trees. The trees were selected in the area surrounding 61 research plots installed in Galicia, Asturias and the Basque Country, northern Spain. The models were simultaneously fitted to observed values of diameter outside bark and inside bark. A third-order co ...
DOI:
10.2989/20702620.2015.1136505

100. Comparison of harvest-related removal of aboveground biomass, carbon and nutrients in pedunculate oak stands and in fast-growing tree stands in NW Spain

Author:
Gómez-García, Esteban; Diéguez-Aranda, Ulises; Cunha, Mário; Rodríguez-Soalleiro, Roque
Source:
Forest ecology and management 2016 v.365 pp. 119-127
ISSN:
0378-1127
Subject:
Eucalyptus globulus; Pinus pinaster; Pinus radiata; Quercus robur; aboveground biomass; bark; bioenergy; branches; carbon; harvesting; introduced species; models; nutrients; plantations; stemwood; trees; Spain
Abstract:
... In northern Spain, the use of biomass to produce bioenergy has led to increased exploitation of both natural pedunculate oak (Quercus robur L.) stands and fast-growing plantations of natural or exotic species. In this study, we developed a model for estimating aboveground biomass, carbon and nutrient contents in different pedunculate oak components at individual-tree and at stand level. Six harves ...
DOI:
10.1016/j.foreco.2016.01.021