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1. Analysing the growth dynamics of mixed stands composed of balsam fir and broadleaved species of various shade tolerances

Author:
Pothier, David
Source:
Forest ecology and management 2019 v.444 pp. 21-29
ISSN:
0378-1127
Subject:
understory,   etc   ; Abies balsamea; allometry; cutting; mixed stands; shade tolerance; trees;     Show all 7 Subjects
Abstract:
... The presence of shade-tolerant trees in the understory of mixed-species stands could produce a state of reverse growth dominance, but the growth dynamics between species has been little studied. Here, an analytical framework that was based upon the concepts of growth dominance (GD) and competition mode was used to study the growth dynamics of mixed-species stands. Because shade tolerance is an imp ...
DOI:
10.1016/j.foreco.2019.04.035

2. Towards operational marker-free registration of terrestrial lidar data in forests

Author:
Tremblay, Jean-François; Béland, Martin
Source:
ISPRS journal of photogrammetry and remote sensing 2018 v.146 pp. 430-435
ISSN:
0924-2716
Subject:
understory,   etc   ; algorithms; data collection; forest types; lidar;     Show all 5 Subjects
Abstract:
... Terrestrial laser scanning (TLS) often makes use of multiple scans in forests to allow for a complete view of a given area. Combining measurements from multiple locations requires accurate co-registration of the scans to a common reference coordinate system, which currently relies on markers, an often cumbersome process in forests. Existing algorithms for achieving marker-free registration of TLS ...
DOI:
10.1016/j.isprsjprs.2018.10.011

3. Sustained productivity of intensively managed loblolly pine plantations: Persistence of fertilization and weed control effects across rotations

Author:
Subedi, Praveen; Jokela, Eric J.; Vogel, Jason G.; Martin, Timothy A.
Source:
Forest ecology and management 2019 v.446 pp. 38-53
ISSN:
0378-1127
Subject:
understory,   etc   ; Pinus taeda; Spodosols; aboveground biomass; biomass production; fertilizers; plantations; weed control; Florida;     Show all 9 Subjects
Abstract:
... Two randomized complete block design experiments were used to study the effects of fertilization and weed control treatments on the productivity of second rotation loblolly pine (Pinus taeda L.) plantations growing on poorly-drained Spodosols in north Florida. One experiment (actively managed retreated) received similar treatments as in the first rotation (Control, C; Fertilizer, F; Fertilizer + w ...
DOI:
10.1016/j.foreco.2019.05.025

4. Differential effects of forestry plantations on bird diversity: A global assessment

Author:
Castaño-Villa, Gabriel J.; Estevez, Jaime V.; Guevara, Giovany; Bohada-Murillo, Mauricio; Fontúrbel, Francisco E.
Source:
Forest ecology and management 2019 v.440 pp. 202-207
ISSN:
0378-1127
Subject:
understory,   etc   ; birds; case studies; forest plantations; forests; landscapes; meta-analysis; species richness; surveys; trees;     Show all 10 Subjects
Abstract:
... Planted forests are becoming increasingly common worldwide, replacing natural forests and compromising their associated biodiversity. However, not all forest plantations are the same. Aiming to identify key plantation features that could be managed to improve bird diversity, we conducted a meta-analysis examining the differential effects of several kinds of plantations on bird species richness and ...
DOI:
10.1016/j.foreco.2019.03.025

5. Ungulate Herbivory Is Correlated with High Aspen Suckering Density but Reductions in Aspen Growth Rates and Recruitment

Author:
Rhodes, Aaron C.; Fitch, Cecily; St. Clair, Samuel B.
Source:
Rangeland ecology & management 2019 v.72 no.3 pp. 454-460
ISSN:
1550-7424
Subject:
understory,   etc   ; apical meristems; forests; habitats; herbivores; observational studies; suckering; ungulates; Fishlake National Forest; Utah;     Show all 10 Subjects
Abstract:
... Aspen is a foundation species that provides vital habitat for hundreds of plant and animal species. However, changing ungulate herbivory regimes may be altering recruitment success and resilience of aspen forests. The objective of this observational study was to quantify the impacts of ungulate herbivory on aspen recruitment potential. We sampled 36 aspen dominant stands on the Fishlake National F ...
DOI:
10.1016/j.rama.2018.12.006

6. Quantifying 3D structure and occlusion in dense tropical and temperate forests using close-range LiDAR

Author:
Schneider, Fabian D.; Kükenbrink, Daniel; Schaepman, Michael E.; Schimel, David S.; Morsdorf, Felix
Source:
Agricultural and forest meteorology 2019 v.268 pp. 249-257
ISSN:
0168-1923
Subject:
understory,   etc   ; algorithms; branches; forest canopy; leaves; lidar; micrometeorology; models; temperate forests; unmanned aerial vehicles;     Show all 10 Subjects
Abstract:
... Terrestrial laser scanning (TLS) has emerged as a reference for three-dimensional measurements of forest structure as well as forest reconstruction and modeling. Ground-based measurements can be complemented by new light-weight sensors on unmanned aerial vehicles (UAVs) or laser scans from canopy cranes or towers. However, it is still largely unknown how much of the forest canopy volume can be sam ...
DOI:
10.1016/j.agrformet.2019.01.033

7. Contrasting evolutionary histories in Neotropical birds: Divergence across an environmental barrier in South America

Author:
Lavinia, Pablo D.; Barreira, Ana S.; Campagna, Leonardo; Tubaro, Pablo L.; Lijtmaer, Darío A.
Source:
Molecular ecology 2019 v.28 no.7 pp. 1730-1747
ISSN:
0962-1083
Subject:
understory,   etc   ; Neotropics; Passeriformes; allopatry; bamboos; color; forests; neotropical birds; phylogeography; Amazonia; Andes region; South America;     Show all 12 Subjects
Abstract:
... Avian diversity in the Neotropics has been traditionally attributed to the effect of vicariant forces promoting speciation in allopatry. Recent studies have shown that phylogeographical patterns shared among codistributed species cannot be explained by a single vicariant event, as species responses to a common barrier depend on the biological attributes of each taxon. The open vegetation corridor ...
DOI:
10.1111/mec.15018

8. Different bat guilds have distinct functional responses to elevation

Author:
Mancini, Matheus Camargo Silva; Laurindo, Rafael de Souza; Hintze, Frederico; Mello, Rodrigo de Macêdo; Gregorin, Renato
Source:
Acta oecologica 2019 v.96 pp. 35-42
ISSN:
1146-609X
Subject:
understory,   etc   ; Chiroptera; Neotropics; biodiversity; ecological function; entropy; fauna; forests; functional diversity; linear models; Brazil;     Show all 11 Subjects
Abstract:
... Understanding biodiversity's responses to environmental variations is a challenging task in ecological research. Under a functional perspective, studies have shown that environmental alterations can affect organisms' traits that are related to their performance, fitness and ecological functions. In the present study, we evaluated how the diversity and functional traits of two distinct bat guilds a ...
DOI:
10.1016/j.actao.2019.03.004

9. Does density of green infrastructure predict preference?

Author:
Suppakittpaisarn, Pongsakorn; Jiang, Bin; Slavenas, Marcus; Sullivan, William C.
Source:
Urban forestry & urban greening 2019 v.40 pp. 236-244
ISSN:
1618-8667
Subject:
understory,   etc   ; ecosystem services; green infrastructure; humans; landscapes; planting; risk; stormwater; surveys; trees; urban forests;     Show all 11 Subjects
Abstract:
... Green Infrastructure (GI) refers to the natural spaces in a city that improve urban ecology and bring social, economic, and environmental benefits to residents and communities. Although we know a good deal about people’s preference for urban forests, we know little about how people reaction to other types of GI and even less about how varying levels of vegetation density influence preference. With ...
DOI:
10.1016/j.ufug.2018.02.007

10. Competition increased fine root biomass in Chinese fir (Cunninghamia lanceolata) plantations in Subtropical China

Author:
Liao, Yingchun; Fan, Houbao; Wei, Xiaohua; Wu, Jianping; Duan, Honglang; Fu, Xiaoli; Liu, Wenfei; Wang, Huimin; Zhan, Xinwu; Tang, Pu; Li, Feng
Source:
Forest ecology and management 2019 v.435 pp. 151-157
ISSN:
0378-1127
Subject:
understory,   etc   ; Cunninghamia lanceolata; biomass; fine roots; forest plantations; forests; nutrients; soil; trees; China;     Show all 10 Subjects
Abstract:
... Fine roots play a prominent role in plants’ acquisition of nutrients and water from the soil, and their amounts and dynamics determine trees’ growth and adaptation to environmental stress. However, the relationship between fine tree roots (including absorptive roots and fine transport roots) and forest biomass or fine understory vegetation roots (understory roots) remains poorly understood, which ...
DOI:
10.1016/j.foreco.2018.12.035

11. Field experiments show contradictory short‐ and long‐term myrmecochorous plant impacts on seed‐dispersing ants

Author:
Warren, Robert J., II; Elliott, Katherine J.; Giladi, Itamar; King, Joshua R.; Bradford, Mark A.
Source:
Ecological entomology 2019 v.44 no.1 pp. 30-39
ISSN:
0307-6946
Subject:
understory,   etc   ; Formicidae; ant colonies; field experimentation; herbaceous plants; lipid content; mutualism; seed dispersal; seeds; North America;     Show all 10 Subjects
Abstract:
... 1. Some interactions previously described as mutualistic were revealed to be commensal or parasitic in subsequent investigations. Ant‐mediated seed dispersal has been described as a mutualism for more than a century; however, recent research suggests that it may be commensal or parasitic. Plants demonstrably benefit from ant‐mediated seed dispersal, although there is little evidence available to d ...
DOI:
10.1111/een.12666

12. Habitats shape taxonomic and functional composition of Neotropical ant assemblages

Author:
Fichaux, Mélanie; Béchade, Benoît; Donald, Julian; Weyna, Arthur; Delabie, Jacques Hubert Charles; Murienne, Jérôme; Baraloto, Christopher; Orivel, Jérôme
Source:
Oecologia 2019 v.189 no.2 pp. 501-513
ISSN:
0029-8549
Subject:
understory,   etc   ; Formicidae; competitive exclusion; forest habitats; models; multivariate analysis; swamps; traps; tropical forests; French Guiana;     Show all 10 Subjects
Abstract:
... Determining assembly rules of co-occurring species persists as a fundamental goal in community ecology. At local scales, the relative importance of environmental filtering vs. competitive exclusion remains a subject of debate. In this study, we assessed the relative importance of habitat filtering and competition in structuring understory ant communities in tropical forests of French Guiana. Leaf- ...
DOI:
10.1007/s00442-019-04341-z

13. Impact of vegetation on the methane budget of a temperate forest

Author:
Plain, Caroline; Ndiaye, Fatou‐Kiné; Bonnaud, Pascal; Ranger, Jacques; Epron, Daniel
Source:
Thenew phytologist 2019 v.221 no.3 pp. 1447-1456
ISSN:
0028-646X
Subject:
understory,   etc   ; automation; emissions; forest ecosystems; forest soils; methane; methanotrophs; oxygen; stems; temperate forests; trees; wetlands;     Show all 12 Subjects
Abstract:
... Upland forest soils are known to be the main biological sink for methane, but studies have shown that net methane uptake of a forest ecosystem can be reduced when methane emissions by vegetation are considered. We estimated the methane budget of a young oak plantation by considering tree stems but also the understorey vegetation. Automated chambers connected to a laser‐based gas analyser, on tree ...
DOI:
10.1111/nph.15452

14. A 30-year study of the effects of selective logging on a stem-less palm (Astrocaryum sociale) in a central-Amazon forest

Author:
Higashikawa, Emílio Manabu; Brasil, Maria Marcela Ortiz; Magnusson, William Ernest
Source:
Forest ecology and management 2019 v.432 pp. 607-611
ISSN:
0378-1127
Subject:
understory,   etc   ; Astrocaryum; adults; basal area; biodiversity; cutting; dead wood; forests; leaves; logging; long term effects;     Show all 11 Subjects
Abstract:
... We studied the long-term effects of different selective-logging intensities on the stem-less palm Astrocaryum sociale in a central Amazonian forest 90 km north of Manaus. The experiment consisted of three blocks of 24 ha, each divided into six 4 ha plots in which the treatments were allocated randomly. Each block had a control plot. Within each block, commercial timber was logged with intensities ...
DOI:
10.1016/j.foreco.2018.10.003

15. Maximizing the monitoring of diversity for management activities: Additive partitioning of plant species diversity across a frequently burned ecosystem

Author:
Dell, Jane E.; Pokswinski, Scott M.; Richards, Lora A.; Hiers, J. Kevin; Williams, Brett; O'Brien, Joseph J.; Loudermilk, E. Louise; Hudak, Andrew T.; Dyer, Lee A.
Source:
Forest ecology and management 2019 v.432 pp. 409-414
ISSN:
0378-1127
Subject:
understory,   etc   ; Pinus palustris; data collection; ecosystems; monitoring; species richness; United States;     Show all 7 Subjects
Abstract:
... Monitoring understory plant diversity is important, allowing managers to track current diversity status and trends both spatially and temporally at a landscape-scale. Improving precision in quantifying patterns in understory plant diversity improves efficiency in monitoring design and more accurate measures of success of management intervention over time. Patterns of species diversity are dependen ...
DOI:
10.1016/j.foreco.2018.09.022

16. A Rapidly Expanding Macroalga Acts as a Foundational Species Providing Trophic Support and Habitat in the South Pacific

Author:
Bittick, Sarah Joy; Clausing, Rachel J.; Fong, Caitlin R.; Scoma, Samuel R.; Fong, Peggy
Source:
Ecosystems 2019 v.22 no.1 pp. 165-173
ISSN:
1432-9840
Subject:
understory,   etc   ; Turbinaria ornata; coral reefs; corals; ecological function; epiphytes; foraging; herbivorous fish; macroalgae;     Show all 9 Subjects
Abstract:
... Foundation species facilitate associated communities and provide key ecosystem functions, making anthropogenically driven phase-shifts involving these species critically important. One well-documented such phase-shift has been from coral to algal domination on tropical reefs. On South Pacific coral reefs, the macroalga Turbinaria ornata has expanded its range and habitat but, unlike algae that oft ...
DOI:
10.1007/s10021-018-0261-1

17. Colonization of woody seedlings in the understory of actively and passively restored tropical moist forests

Author:
Ssekuubwa, Enock; Muwanika, Vincent B.; Esaete, Josephine; Tabuti, John R. S.; Tweheyo, Mnason
Source:
Restoration ecology 2019 v.27 no.1 pp. 148-157
ISSN:
1061-2971
Subject:
understory,   etc   ; national parks; old-growth forests; seedlings; species diversity; tropical rain forests; Uganda;     Show all 7 Subjects
Abstract:
... The status of woody seedling colonization gives clues about the self‐sustainability of restored forests, a tenet of restoration success. Little is known about woody seedling colonization in restored afrotropical forests. We evaluated effects of restoration methods (active vs. passive), sampling year, restoration age, and distance from old‐growth forests on seedling colonization in restored afrotro ...
DOI:
10.1111/rec.12850

18. Developing trapping protocols for wood-boring beetles associated with broadleaf trees

Author:
Rassati, Davide; Marini, Lorenzo; Marchioro, Matteo; Rapuzzi, Pierpaolo; Magnani, Gianluca; Poloni, Riccardo; Di Giovanni, Filippo; Mayo, Peter; Sweeney, Jon
Source:
Journal of pest science 2019 v.92 no.1 pp. 267-279
ISSN:
1612-4758
Subject:
understory,   etc   ; Buprestidae; bait traps; broadleaved trees; canopy; color; ethanol; forests; hardwood; species richness; trapping; Italy;     Show all 12 Subjects
Abstract:
... Longhorn and jewel beetles are often moved intercontinentally within woody materials. The common use of hardwoods in solid wood-packaging requires efficient trapping protocols for broadleaf-associated species. We tested the effect of lure (ethanol vs multi-lure), trap color (green vs purple), and trap height (understory vs canopy) on the longhorn and jewel beetle species trapped in multi-funnel tr ...
DOI:
10.1007/s10340-018-0984-y

19. Distance–decay differs among vertical strata in a tropical rainforest

Author:
Basham, Edmund W.; Seidl, Christa M.; Andriamahohatra, Lydou R.; Oliveira, Brunno F.; Scheffers, Brett R.
Source:
The journal of animal ecology 2019 v.88 no.1 pp. 114-124
ISSN:
0021-8790
Subject:
understory,   etc   ; amphibians; biodiversity; canopy; ecosystems; fauna; habitats; models; species dispersal; trees; tropical rain forests; Madagascar;     Show all 12 Subjects
Abstract:
... Assemblage similarity decays with geographic distance—a pattern known as the distance–decay relationship. While this pattern has been investigated for a wide range of organisms, ecosystems and geographical gradients, whether these changes vary more cryptically across different forest strata (from ground to canopy) remains elusive. Here, we investigated the influence of ground vs. arboreal assembla ...
DOI:
10.1111/1365-2656.12902

20. Assessing small-stem density in northern hardwood selection system stands

Author:
Nyland, Ralph D.; Nystrom, Lindsay; Kiernan, Diane H.; Bevilacqua, Eddie
Source:
Canadian journal of forest research 2019 v.49 no.3 pp. 237-245
ISSN:
1208-6037
Subject:
understory,   etc   ; Fagus grandifolia; basal area; cutting; hardwood; hardwood forests; stems; trees; New York;     Show all 9 Subjects
Abstract:
... Data from three uneven-aged northern hardwood stands in New York State were analyzed to assess the effects of understory American beech (Fagus grandifolia Ehrh.) density on changes of small stems within the 2.54 to 5.08 cm diameter class during the first cutting cycle under single-tree selection system. Findings show that the amount of understory American beech on a regeneration plot, quantified u ...
DOI:
10.1139/cjfr-2018-0192