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1. An 11,000‐yr record of diatom assemblage responses to climate and terrestrial vegetation changes, southwestern Québec

Author:
Karen Neil; Konrad Gajewski
Source:
Ecosphere 2018 v.9 no.11 pp. e02505
ISSN:
2150-8925
Subject:
Alnus; Betula; Fagus; Fragilaria; Holocene epoch; Tsuga; climate; cooling; dry environmental conditions; ecological succession; forests; hardwood; hydrochemistry; lakes; landscapes; ontogeny; palynology; plankton; principal component analysis; sediments; shade tolerance; soil; temperature; terrestrial ecosystems; trees; watersheds; woodlands; Quebec
Abstract:
... A high‐resolution diatom sequence was developed from continuously laminated lake sediments in southwestern Québec, which spanned the Holocene (~11,000 yr). General and species‐specific changes in the diatom record were synchronous with patterns of vegetation succession inferred from regional palynological studies, demonstrating significant influences of terrestrial ecosystems on lake water chemist ...
DOI:
10.1002/ecs2.2505

2. Cannabis is indigenous to Europe and cultivation began during the Copper or Bronze age: a probabilistic synthesis of fossil pollen studies

Author:
John M. McPartland; Geoffrey W. Guy; William Hegman
Source:
Vegetation history and archaeobotany 2018 v.27 no.4 pp. 635-648
ISSN:
0939-6314
Subject:
Alnus; Amaranthaceae; Artemisia; Cannabis sativa; Holocene epoch; Humulus; Poaceae; Populus; Salix; cultivators; databases; forests; fossils; geographic information systems; glaciation; hemp; humans; landscapes; pollen; refuge habitats; steppes; tundra; Asia; Europe
Abstract:
... Conventional wisdom states Cannabis sativa originated in Asia and its dispersal to Europe depended upon human transport. Various Neolithic or Bronze age groups have been named as pioneer cultivators. These theses were tested by examining fossil pollen studies (FPSs), obtained from the European Pollen Database. Many FPSs report Cannabis or Humulus (C/H) with collective names (e.g. Cannabis/Humulus ...
DOI:
10.1007/s00334-018-0678-7

3. Comparative Flower and Inflorescence Organogenesis among Genera of Betulaceae: Implications for Phylogenetic Relationships

Author:
Junyi Zhu; Lifan Zhang; Baoqing Ren; Min Chen; Ruiqi Li; You Zhou; Yu Liang; Jianhua Li; Zhiduan Chen
Source:
botanical review 2018 v.84 no.1 pp. 79-98
ISSN:
0006-8101
Subject:
Alnus; Betula; Carpinus; Corylus; Ostrya; bracts; flowers; organogenesis; phylogeny; pistil; scanning electron microscopy; stamens
Abstract:
... Betulaceae have simple flowers but complex inflorescences. Recent phylogenetic analyses using molecular data have produced robust phylogenetic trees of Betulaceae. In this study, we evaluated the phylogenetic value of comparative organogenetic data of reproductive organs in the context of molecular phylogenies. Flower and inflorescence developmental processes of 21 species from all six genera in B ...
DOI:
10.1007/s12229-017-9195-0

4. Divergent patterns of understory forage growth after seismic line exploration: Implications for caribou habitat restoration

Author:
Laura Finnegan; Doug MacNearney; Karine E. Pigeon
Source:
Forest ecology and management 2018 v.409 pp. 634-652
ISSN:
0378-1127
Subject:
Alces alces; Alnus; Betula; Rangifer tarandus caribou; Rhododendron; Salix; Ursidae; Vaccinium vitis-idaea; boreal forests; data collection; forage; forbs; forest ecosystems; geophysics; graminoids; habitat conservation; habitat fragmentation; habitats; humans; predators; reforestation; silviculture; understory; wildlife; wolves; Alberta
Abstract:
... Seismic lines are one of the most pervasive disturbances across the boreal forest of western Canada, with densities in Alberta as high as 10 km/km². The effect of seismic lines and associated habitat fragmentation on boreal wildlife is generally well understood, and most recently seismic lines have been focus of habitat restoration efforts to conserve declining woodland caribou (Rangifer tarandus ...
DOI:
10.1016/j.foreco.2017.12.010

5. The Effect of Four Types of Broad-Leaved Trees on Soil C and N Storage and Mineralization in Forest Areas of Noor City

Author:
F. S. Tarighat; Y. Kooch
Source:
̒Ulūm-i āb va khāk 2018 v.22 no.2 pp. 175-188
ISSN:
2476-5554
Subject:
Alnus; Parrotia persica; Ulmus glabra; bulk density; canopy; carbon; deciduous forests; equations; mineralization; pH; soil; texture; total nitrogen; water content
Abstract:
... The effect of broad-leaved forest trees (Alnus glotinusa, Ulmus glabra, Popolus caspica and Parrotia persica) and their canopy position on soil C and N storage and mineraization in the plain forest areas of Noor was investigated. Soil samples were taken from two positions (near and away from the main stem) with the microplots of 30×30×15 cm. Litter (C and N), soil physical (bulk density, texture a ...

6. Environmental changes and ancient long-term wet field management schemes: A preliminary case study of the Daepyeongri site, locality 3-1-D, South Korea

Author:
Youngrong Moon; Hong-Jong Lee; Heejin Lee
Source:
Holocene v.28 no.12 pp. 1979-1991
ISSN:
1477-0911
Subject:
Alnus; Asteraceae; Bistorta; Cyperaceae; Fagopyrum; Poaceae; agricultural land; arid lands; case studies; floodplains; irrigation management; land restoration; land use; landscapes; microscopy; microstructure; pollen; rivers; soil; wetlands; South Korea
Abstract:
... Large-scale excavations between 2012 and 2015 at the Daepyeongri site on the floodplain of the River Geumgang have revealed the presence of an ancient complex settlement comprising houses, extensive agricultural fields, and pits that have been dated to between the Bronze Age and the early Three Kingdoms periods. The beginning and end of the occupation of this site and land-use patterns are assumed ...
DOI:
10.1177/0959683618798114

7. Factors of selection and quality of wood used for woodcraft in medieval Polish strongholds and early urban centres

Author:
Katarzyna Cywa; Agnieszka Wacnik; Maria Lityńska-Zając
Source:
Acta palaeobotanica 2018 v.58 no.2 pp. 231-287
ISSN:
2082-0259
Subject:
Abies alba; Alnus; Euonymus; Fagus sylvatica; Fraxinus excelsior; Larix; Picea abies; Pinus sylvestris; Quercus; Taxus baccata; conifers; handicrafts; manufacturing; pollen; shrubs; trees; wood; woodworking; Poland
Abstract:
... This paper discusses various aspects of the use of wood for crafts in the Middle Ages, based on xylological analyses of 4211 crafted items of everyday use discovered at 62 archaeological sites in Poland. Over 1500 items were identified in the authors’ own analyses, and the remaining taxonomic data were taken from the literature. The research showed that the main types of wood used at the time were ...
DOI:
10.2478/acpa-2018-0013

8. Flowering of allergenically important plant species in relation to the North Atlantic Oscillation system and thermal time in the Czech Republic

Author:
Lenka Hájková; Zdeněk Hubálek; Věra Kožnarová; Lenka Bartošová; Martin Možný
Source:
Aerobiologia 2018 v.34 no.2 pp. 157-169
ISSN:
0393-5965
Subject:
Alnus; Alopecurus pratensis; Anemone (plant); Betula pendula; Larix decidua; North Atlantic Oscillation; Quercus robur; Salix caprea; allergens; altitude; flowering; heat sums; soil temperature; spring; trees; winter; Central European region; Czech Republic
Abstract:
... This paper analyses long-term (1960–2015) onset of flowering in 16 native terrestrial plants (11 of them produce important allergens) recorded in different parts of the Czech Republic (southern, central and northern part) in relation to the North Atlantic Oscillation (NAO) index of the preceding winter and thermal data—growing degree-days (GDD) and soil temperature. Flowering occurred significantl ...
DOI:
10.1007/s10453-017-9504-4

9. Holocene development of two calcareous spring fens at the Carpathian-Pannonian interface controlled by climate and human impact

Author:
Eva Jamrichová; Andrea Gálová; Adam Gašpar; Michal Horsák; Jitka Frodlová; Michal Hájek; Mária Hajnalová; Petra Hájková
Source:
Folia geobotanica 2018 v.53 no.3 pp. 243-263
ISSN:
1211-9520
Subject:
Alnus; Betula nana; Corylus; Hedera helix; Larix; Picea; Pinus; Quercus; Salix; Tilia cordata; Ulmus; Ustulina; anthropogenic activities; basins; calcium carbonate; climate; climate models; deforestation; fens; fossils; grazing; hemp; hills; humidity; hydrology; molluscs; mowing; paleoclimatology; paleoecology; pollen; retting; sediments; spores; trees; wetland plants; woody plants; Carpathian region
Abstract:
... There is still not enough palaeoecological data from the southwestern part of the Western Carpathians, where mountain ridges steeply rise from the dry and warm Pannonian basin. The reason is a low availability of sites with sediments harbouring fossil remains. In the Považský Inovec Mts, two small protected calcareous wetlands occur in different geographical position and contain suitable sediments ...
DOI:
10.1007/s12224-018-9324-5

10. Late Pleistocene glacial forest elements of Brazilian Amazonia

Author:
W.J.S. Lima; M.C.L. Cohen; D.F. Rossetti; M.C. França
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2018 v.490 pp. 617-628
ISSN:
0031-0182
Subject:
Alnus; Illex; Podocarpus; Weinmannia; altitude; climate change; glaciation; herbs; lowlands; plant communities; pollen; rivers; sediments; terraces; trees; tropical rain forests; Amazonia; Andes region
Abstract:
... Pollen data recovered from the sedimentary record of western Amazonia is still inadequate to fully address climate changes over the Last Glaciation in this region. The present work focuses vegetation dynamics from an area of southwestern Amazonia during the past 42,000cal yr B.P. based on the integration of previous and new pollen data. Sediment cores were sampled from two sites covered by tropica ...
DOI:
10.1016/j.palaeo.2017.11.050

11. Legacy of post‐glacial colonization affects β‐diversity: Insights into local community assembly processes

Author:
Jan Douda; Alena Havrdová; Jana Doudová; Bohumil Mandák
Source:
Journal of biogeography 2018 v.45 no.7 pp. 1604-1615
ISSN:
0305-0270
Subject:
Alnus; biogeography; climatic factors; community structure; correlation; floodplains; forests; habitats; species diversity; trees; variance; Europe
Abstract:
... AIM: Differences in local β‐diversity (i.e., within‐site β‐diversity) along climatic and biogeographical gradients may result from regional differences in the importance of local community assembly processes (e.g. dispersal limitation and habitat filtering) or from regional differences in species pool sizes (i.e. species potentially able to colonize a focal site). Here, we assess the importance of ...
DOI:
10.1111/jbi.13235

12. Modern pollen assemblages from Reasi (Jammu and Kashmir), India: a tool for interpreting fossil pollen records

Author:
Mohammad Firoze Quamar; Sheikh Nawaz Ali; Sundeep Kumar Pandita; Yudhbir Singh
Source:
Grana 2018 v.57 no.5 pp. 364-376
ISSN:
1651-2049
Subject:
Abies; Aesculus; Alnus; Betula; Carpinus; Cedrus; Corylus; Elaeocarpus; Juglans; Juniperus; Picea; Pinus; Poaceae; Podocarpus; Quercus; Salix; Tsuga; Ulmus; coniferous forests; conifers; crops; deciduous forests; fossils; mosses and liverworts; palynology; pollen; pollen analysis; pollen flow; pollen rain; wind; India
Abstract:
... Twenty five surface samples/moss cushions were collected for palynological analysis from open areas of Reasi District, Jammu and Kashmir (India). These samples were used to investigate the relationships between extant vegetation and modern pollen spectra, which serve as modern analogue for the reliable ecological interpretation of fossil pollen records. The present vegetation in the region compris ...
DOI:
10.1080/00173134.2018.1478990

13. Notes on the postglacial spread of abundant European tree taxa

Author:
Thomas Giesecke; Simon Brewer
Source:
Vegetation history and archaeobotany 2018 v.27 no.2 pp. 337-349
ISSN:
0939-6314
Subject:
Alnus; Carpinus; Corylus; Fagus; Holocene epoch; Picea; Quercus; Tilia; Ulmus; climate; climate change; databases; paleoecology; phylogeography; pollen; pollen analysis; population density; population growth; trees; uncertainty; woodlands; Northern European region; Sweden
Abstract:
... The reaction of vegetation to past climate change provides important insights for vegetation responses to future climate change. A key problem for projections into the future is obtaining estimates of the rates at which plants are able to spread as their environment changes. To address this uncertainty, we review the palaeoecological and phylogeographic literature to estimate the range of observed ...
DOI:
10.1007/s00334-017-0640-0

14. Pollen in the atmosphere of Mexico City and its impact on the health of the pediatric population

Author:
M.C. Calderon-Ezquerro; C. Guerrero-Guerra; C. Galán; N. Serrano-Silva; G. Guidos-Fogelbach; M.C. Jiménez-Martínez; D. Larenas-Linnemann; E.D. López Espinosa; J. Ayala-Balboa
Source:
Atmospheric environment 2018 v.186 pp. 198-208
ISSN:
1352-2310
Subject:
Alnus; Cupressaceae; Fraxinus; Poaceae; Quercus; allergens; asthma; atmospheric chemistry; children; flowering; forests; grasses; hospitals; keratoconjunctivitis; monitoring; patients; pollen; rhinitis; spore traps; trees; tropics; weeds; Mexico
Abstract:
... Over a period of eight years, were assessed the main types of airborne pollen in Mexico City (a tropical region). We established the airborne pollen calendar and we evaluated the associations between aeroallergens and allergic diseases in children treated at hospitals. A Hirst-type volumetric spore trap was placed in an open area within the Chapultepec Forest, and pollen records were obtained duri ...
DOI:
10.1016/j.atmosenv.2018.05.006

15. Riparian forests along small streams on managed forest land in Sweden

Author:
E. Ring; O. Widenfalk; G. Jansson; H. Holmström; L. Högbom; J. Sonesson
Source:
Scandinavian journal of forest research 2018 v.33 no.2 pp. 133-146
ISSN:
1651-1891
Subject:
Sphagnum; broadleaved trees; Alnus; age structure; riparian forests; Picea abies; streams; Pinus sylvestris; Betula; stand basal area; Sweden
Abstract:
... This study investigated characteristics of riparian forests on managed forest land in Sweden. Forest and site characteristics were inventoried at three sites, located along a south to north gradient, in 139 transects placed perpendicular to 38 stream reaches (<10 m wide), in forests representing the age classes 0–25, 26–75 and >75 years. Starting from the stream edge, the 30 m long transects were ...
DOI:
10.1080/02827581.2017.1338750

16. Thirty-four years of pollen monitoring: an evaluation of the temporal variation of pollen seasons in Belgium

Author:
Lucie Hoebeke; Nicolas Bruffaerts; Caroline Verstraeten; Andy Delcloo; Tom De Smedt; Ann Packeu; Monique Detandt; Marijke Hendrickx
Source:
Aerobiologia 2018 v.34 no.2 pp. 139-155
ISSN:
0393-5965
Subject:
Alnus; Artemisia vulgaris; Betula; Fraxinus; Platanus; allergenicity; grasses; monitoring; pollen; spore traps; temporal variation; trees; Belgium
Abstract:
... For the first time in Belgium, fluctuations in airborne pollen quantities over a 34 years period have been analyzed. Seven pollen types have been selected comprising the most clinically relevant in Belgium nowadays (birch, alder, hazel and grasses) and others that are known to be allergenic in other European countries and frequently found in Belgium (plane, ash and mugwort). Pollen monitoring was ...
DOI:
10.1007/s10453-017-9503-5

17. A palaeoenvironmental reconstruction (based on palaeobotanical data and diatoms) of the Middle Pleistocene elephant (Palaeoloxodon antiquus) butchery site at Marathousa, Megalopolis, Greece

Author:
M.H. Field; M. Ntinou; G. Tsartsidou; D. van Berge Henegouwen; J. Risberg; V. Tourloukis; N. Thompson; P. Karkanas; E. Panagopoulou; K. Harvati
Source:
Quaternary international 2018 v.497 pp. 108-122
ISSN:
1040-6182
Subject:
Alnus; Arecaceae; Bacillariophyceae; Brasenia schreberi; Salix; aquatic plants; butchering; climatic factors; lacustrine sediments; lignite; paleoecology; sediment deposition; skeleton; swamps; trees; water table; wood; Greece
Abstract:
... Exposures of Middle Pleistocene lacustrine sediments at the margins of an open-cast lignite mine at Marathousa near Megalopolis, western Arcadia, Greece yielded the partial remains of a Palaeoloxodon antiquus skeleton which exhibited signs of being butchered. Sedimentation occurred between ca. 400 and 480 ka. Lithic artefacts were found in close spatial and stratigraphic association with the eleph ...
DOI:
10.1016/j.quaint.2018.06.014

18. The potential of paleoecology for functional forest restoration planning: lessons from Late Holocene Italian pollen records

Author:
Gianluca Piovesan; Anna Maria Mercuri; Scott A. Mensing
Source:
Plant biosystems 2018 v.152 no.3 pp. 508-514
ISSN:
1724-5575
Subject:
Acer; Alnus; Carpinus betulus; Fraxinus excelsior; Holocene epoch; Tilia; basins; biodiversity; ecosystem services; floodplains; forest damage; forest ecosystems; forest restoration; forest succession; forests; humans; landscapes; niches; paleoecology; planning; pollen; sediments; sustainable development; topographic slope; trees; wetlands; Adriatic Sea; Italy
Abstract:
... We describe forest landscape transformations during the last two millennia in the Italian peninsula by analyzing local (Rieti basin – Lago Lungo) and regional (RF93-30 Adriatic Sea) sediment cores. We identify a dynamic forest ecosystem through paleoecologic reconstruction and consider potential interventions for effective restoration of the most ancient, least disturbed forest ecosystem. The most ...
DOI:
10.1080/11263504.2018.1435582

19. The reconstruction of past forest dynamics over the last 13,500 years in SW Sweden

Author:
Gina E Hannon; Karen Halsall; Chiara Molinari; John Boyle; Richard HW Bradshaw
Source:
Holocene v.28 no.11 pp. 1791-1800
ISSN:
1477-0911
Subject:
Alnus; Betula; Corylus; Fagus sylvatica; Fraxinus; Hippophae rhamnoides; Holocene epoch; Juniperus; Picea abies; Pinus sylvestris; Populus tremula; Quercus; Salix; Tilia; Ulmus; biodiversity; burning; charcoal; climate change; conservation areas; epiphytes; fire frequency; fires; flora; forest dynamics; forests; fungi; habitat fragmentation; insects; invertebrates; lakes; paleoecology; pollen; steppes; trees; Sweden
Abstract:
... Evidence for unbroken continuity of tree taxa over the last c. 13,500 years is presented from a biodiversity ‘hotspot’ nature reserve in south-west Sweden. Forest composition, continuity, fire and disturbance events are reconstructed using palaeoecological methods. A lake record reveals that Pinus sylvestris, Betula spp., Salix spp., Populus tremula and Hippophae rhamnoides were the initial trees ...
DOI:
10.1177/0959683618788669

20. Alnus shrub expansion increases evapotranspiration in the Swiss Alps

Author:
Thijs van den Bergh; Christian Körner; Erika Hiltbrunner
Source:
Regional environmental change 2018 v.18 no.5 pp. 1375-1385
ISSN:
1436-3798
Subject:
Alnus; altitude; canopy; cooling; evapotranspiration; grasslands; growing season; lysimeters; runoff; sap flow; shrublands; shrubs; surface roughness; surface temperature; thermography; transpiration; treeline; understory; vapor pressure; watersheds; Alps region; Switzerland
Abstract:
... Shrub encroachment is one of the main consequences of abandonment of montane grassland. Higher surface roughness of shrubs leads to stronger aerodynamic coupling. This should increase evapotranspiration (ET), but lower surface temperatures (due to higher ET and reduced aerodynamic resistance) could counter this effect. We explored this question by employing weighable lysimeters in adjacent grass- ...
DOI:
10.1007/s10113-017-1246-x

21. Developing Allometric Equations for Estimating Shrub Biomass in a Boreal Fen

Author:
Annie He; Gregory J. McDermid; Mir Mustafizur Rahman; Maria Strack; Saraswati Saraswati; Bin Xu
Source:
Forests 2018 v.9 no.9 pp. -
ISSN:
1999-4907
Subject:
Alnus; Betula pumila var. glandulifera; Salix; aboveground biomass; allometry; ecoregions; equations; fens; peatlands; phylogeny; plant communities; shrubs; stems
Abstract:
... Allometric equations for estimating aboveground biomass (AGB) from easily measured plant attributes are unavailable for most species common to mid-continental boreal peatlands, where shrubs comprise a large component of the vegetation community. Our study develops allometric equations for three dominant genera found in boreal fens: Alnus spp. (alder), Salix spp. (willow) and Betula pumila (bog bir ...
DOI:
10.3390/f9090569

22. Do the threats of alder and birch allergenic pollen differ within an urban area?

Author:
Katarzyna Borycka; Idalia Kasprzyk
Source:
Urban forestry & urban greening 2018 v.34 pp. 281-293
ISSN:
1618-8667
Subject:
Alnus; Betula; air; allergenicity; hypersensitivity; meteorological parameters; nose; pollen; risk; spore traps; suburban areas; temperature; traps; trees; urban areas; urbanization; Poland
Abstract:
... Currently, the increasing frequency of inhalant allergy is often linked to the urbanization effect. The pollen forecasts for a given city are most often prepared using data from one aerobiological station. However, there is evidence that the pollen concentrations in the air might differ depending on the city area and the height of the pollen trap. This study evaluated the spatial differences in th ...
DOI:
10.1016/j.ufug.2018.07.013

23. Hourly pattern of allergenic alder and birch pollen concentrations in the air: Spatial differentiation and the effect of meteorological conditions

Author:
K. Borycka; I. Kasprzyk
Source:
Atmospheric environment 2018 v.182 pp. 179-192
ISSN:
1352-2310
Subject:
Alnus; meteorological parameters; spore traps; pollen; atmospheric chemistry; air; cities; Betula; monitoring; models; temperate zones; convection; spatial variation; traps; statistics; hypersensitivity; allergenicity; diurnal variation; vegetation; Poland
Abstract:
... In temperate climate widespread alder and birch are an important source of strong aeroallergens. The diurnal pattern of airborne pollen concentrations depends on the rhythm of pollen release from anthers as well as weather conditions, convection air currents, long-distance transport, pollen trap location and local vegetation. The aim of the study was to present a diurnal pattern of Alnus (alder) a ...
DOI:
10.1016/j.atmosenv.2018.03.048

24. How the deadwood of different tree species in various stages of decomposition affected nutrient dynamics?

Author:
Jarosław Lasota; Ewa Błońska; Wojciech Piaszczyk; Małgorzata Wiecheć
Source:
Journal of soils and sediments 2018 v.18 no.8 pp. 2759-2769
ISSN:
1439-0108
Subject:
Abies alba; Alnus; Betula pendula; Fraxinus; Picea abies; Populus; Quercus robur; anions; bark; biodegradation; branches; calcium; cations; dead wood; filtrates; humus horizons; hydrochemistry; ion exchange chromatography; leachates; leaching; linear models; lysimeters; magnesium; nitrates; potassium; sodium; soil surface layers; texture; trees; wood; Poland
Abstract:
... PURPOSE: The aim of the study was to estimate how the deadwood of different tree species in various stages of decomposition affected nutrient dynamics. MATERIALS AND METHODS: The deadwood of eight species (common alder, common aspen, common ash, silver fir, pedunculate oak, Norway spruce, common hornbeam and silver birch) was selected. Three logs from each species in the third, fourth and fifth de ...
DOI:
10.1007/s11368-017-1858-2

25. Late Holocene ice-wedge polygon dynamics in northeastern Siberian coastal lowlands

Author:
Lutz Schirrmeister; Anatoly Bobrov; Elena Raschke; Ulrike Herzschuh; Jens Strauss; Luidmila A. Pestryakova; Sebastian Wetterich
Source:
Arctic, antarctic, and alpine research 2018 v.50 no.1 pp. e1462595
ISSN:
1938-4246
Subject:
Alnus; Carex; Drepanocladus; Holocene epoch; Poaceae; landscapes; lowlands; organic matter; peat; pollen; river deltas; soil water; tundra; vegetation cover; wetlands
Abstract:
... Ice-wedge polygons are common features of northeastern Siberian lowland periglacial tundra landscapes. To deduce the formation and alternation of ice-wedge polygons in the Kolyma Delta and in the Indigirka Lowland, we studied shallow cores, up to 1.3 m deep, from polygon center and rim locations. The formation of well-developed low-center polygons with elevated rims and wet centers is shown by the ...
DOI:
10.1080/15230430.2018.1462595

26. Modern pollen rain from Udhampur (Jammu and Kashmir), India: insights into pollen production, dispersal, transport and preservation

Author:
M.F. Quamar; S. Nawaz Ali; Sundeep K. Pandita; Yudhbir Singh
Source:
Palynology 2018 v.42 no.1 pp. 55-65
ISSN:
1558-9188
Subject:
Abies; Aesculus; Alnus; Amaranthaceae; Betula; Carpinus; Cedrus; Corylus; Elaeocarpus; Ilex; Juglans; Juniperus; Malvaceae; Picea; Pinus; Poaceae; Podocarpus; Quercus; Tsuga; Ulmus; conifers; ground vegetation; mosses and liverworts; pollen; pollen analysis; pollen flow; pollen rain; India
Abstract:
... The present communication deals with pollen analyses of moss polsters in order to understand the pollen rain from Udhampur District of Jammu and Kashmir, India. The study revealed that the pollen of Pinus sp. (average 46% pollen) dominates the pollen rain, which could be attributed to its high pollen productivity and excellent pollen dispersal efficiency, followed by Cedrus sp., and Podocarpus sp. ...
DOI:
10.1080/01916122.2017.1306811

27. Molecular taxonomy of five species of microfungi on Alnus spp. from Italy

Author:
Qing Tian; Wen Jing Li; Kevin D. Hyde; Erio Camporesi; Darbhe J. Bhat; Putarak Chomnunti; Jian Chu Xu
Source:
Mycological progress 2018 v.17 no.1-2 pp. 255-274
ISSN:
1617-416X
Subject:
Alnus; Cryptosporella; Helminthosporium; forest trees; fungi; molecular systematics; phylogeny; Italy
Abstract:
... Five new fungal taxa found on Alnus, a valuable timber tree widely distributed in Europe, are described using morphology and multigene phylogenetic analyses. The new Dothideomycetes, Helminthosporium italicum, Dothiorella guttulata, and Prosthemium alni, and Sordariomycetes, Ditopella aseptatospora and Cryptosporella alni-cordatae, are compared with similar taxa and the differences are discussed. ...
DOI:
10.1007/s11557-017-1336-7

28. Plant community ecology and climate on an upland volcanic landscape during the Early Eocene Climatic Optimum: McAbee Fossil Beds, British Columbia, Canada

Author:
Alexander J. Lowe; David R. Greenwood; Christopher K. West; Jennifer M. Galloway; Markus Sudermann; Tammo Reichgelt
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2018 v.511 pp. 433-448
ISSN:
0031-0182
Subject:
Alnus; Betula; Carya; Eocene epoch; Fagus; Larix; Metasequoia; Picea; Pinus; Ulmus; atmospheric precipitation; basins; climate; forest ecosystems; forests; fossils; highlands; landscapes; leaf mass; leaves; palynology; plant communities; pollen; quarries; shale; spatial variation; species diversity; temperature; topography; tuff; winter; Argentina; British Columbia; Panama
Abstract:
... The McAbee Fossil Beds, in south-central British Columbia, Canada, provide a record of forest ecosystems within a volcanically-active, upland landscape during the Early Eocene Climatic Optimum (EECO). To assess plant community ecology and climate within this environment, palynology and census-style macrofossil collections were investigated from two shale horizons separated in time by likely 103–10 ...
DOI:
10.1016/j.palaeo.2018.09.010

29. Response of oribatid mites to reforestation of degraded tropical montane pastureland

Author:
Pablo Ramírez Castillo; Lucas Marian; Franca Marian; Sven Günter; Carlos Ivan Espinosa; Mark Maraun; Stefan Scheu
Source:
European journal of soil biology 2018 v.84 pp. 35-41
ISSN:
1164-5563
Subject:
Alnus; Eucalyptus saligna; Pinus patula; Pteridium; Sarcoptiformes; Setaria sphacelata; cattle; community structure; environmental factors; grasses; land use; microbial biomass; microbial communities; montane forests; nutritive value; organic matter; pastures; reforestation; soil; soil fauna; soil microorganisms; species diversity; trees; water content; weeds; Andes region
Abstract:
... Tropical montane forests are being turned into pastures for cattle at an unprecedented rate. However, efforts are being made to reforest pastures in particular if invaded by weeds of low nutritional value, but until today little is known on the response of the decomposer system to reforestation. We focused on the response of soil fauna, specifically oribatid mites, which play an important role in ...
DOI:
10.1016/j.ejsobi.2017.09.009

30. Retrotransposons in Betula nana, and interspecific relationships in the Betuloideae, based on inter-retrotransposon amplified polymorphism (IRAP) markers

Author:
Neha Samir Roy; Sung-Il Lee; Kabwe Nkongolo; Nam-Soo Kim
Source:
Genes & genomics 2018 v.40 no.5 pp. 511-519
ISSN:
1976-9571
Subject:
Alnus; Betula nana; databases; phylogeny; phylogeography; retrotransposons; sequence analysis; terminal repeat sequences
Abstract:
... The Betulaceae family comprises two subfamilies, Betuloideae and Corylaceae. The subfamily Betuloideae contains two genera, Alnus Mill. and Betula L. Twenty putative long terminal repeat (LTR) retrotransposons were mined from 171 scaffolds containing 5,208,995 bp of dwarf birch (Betula nana) genome sequences. Five retrotransposons were finally selected after filtering the retrotransposon canonical ...
DOI:
10.1007/s13258-018-0655-7

31. Seasonal and Long-Term Changes to Active-Layer Temperatures after Tall Shrubland Expansion and Succession in Arctic Tundra

Author:
Gerald V. Frost; Howard E. Epstein; Donald A. Walker; Georgiy Matyshak; Ksenia Ermokhina
Source:
Ecosystems 2018 v.21 no.3 pp. 507-520
ISSN:
1432-9840
Subject:
Alnus; ecosystems; energy transfer; landscapes; peat; permafrost; shrublands; shrubs; snowpack; soil temperature; summer; tundra; winter; Arctic region
Abstract:
... Vegetation, active-layer soils, and snow cover regulate energy exchange between the atmosphere and permafrost. Therefore, interactions between changes to tundra vegetation and soil thermal regime will fundamentally affect permafrost in a warmer world. We recorded soil temperatures for approximately 1 year in a Siberian Low Arctic landscape with a known history of alder (Alnus) shrub expansion on d ...
DOI:
10.1007/s10021-017-0165-5

32. Seasonal changes in plant pollen concentrations over recent years in Vinnytsya, Central Ukraine

Author:
Victoria Rodinkova; Lilia Kremenska; Olena Palamarchuk; Iryna Motruk; Elena Alexandrova; Oxana Dudarenko; Larysa Vakolyuk; Oleh Yermishev
Source:
Acta agrobotanica 2018 v.71 no.1 pp. aa.1731
ISSN:
2300-357X
Subject:
Acer; Alnus; Ambrosia; Betula; Corylus; Juglans; Populus; climate change; drought; flora; grasses; growing season; hay fever; heat; human population; pollen; seasonal variation; spores; temperature; trees; walnuts; Ukraine
Abstract:
... The control of plant pollen season patterns is especially important in the expectation of climate change, as the timing of potential varying pollen seasons affects the human population. An ever-increasing number of people suffer from hay fever symptoms with varying severity during the pollen season. This paper presents data on the seasonal variations of pollen concentration and the factors which a ...
DOI:
10.5586/aa.1731

33. Statistical techniques for modeling of Corylus, Alnus, and Betula pollen concentration in the air

Author:
Jakub Nowosad; Alfred Stach; Idalia Kasprzyk; Kazimiera Chłopek; Katarzyna Dąbrowska-Zapart; Łukasz Grewling; Małgorzata Latałowa; Anna Pędziszewska; Barbara Majkowska-Wojciechowska; Dorota Myszkowska; Krystyna Piotrowska-Weryszko; Elżbieta Weryszko-Chmielewska; Małgorzata Puc; Piotr Rapiejko; Tomasz Stosik
Source:
Aerobiologia 2018 v.34 no.3 pp. 301-313
ISSN:
0393-5965
Subject:
Alnus; Betula; Corylus; air; cities; data collection; heat sums; meteorological data; pollen; prediction; statistical models; statistics; Poland
Abstract:
... Prediction of allergic pollen concentration is one of the most important goals of aerobiology. Past studies have used a broad range of modeling techniques; however, the results cannot be directly compared owing to the use of different datasets, validation methods, and evaluation metrics. The main aim of this study was to compare nine statistical modeling techniques using the same dataset. An addit ...
DOI:
10.1007/s10453-018-9514-x

34. Trees and shrubs used in medieval Poland for making everyday objects

Author:
Katarzyna Cywa
Source:
Vegetation history and archaeobotany 2018 v.27 no.1 pp. 111-136
ISSN:
0939-6314
Subject:
Abies alba; Alnus; Euonymus; Fraxinus excelsior; Pinus sylvestris; Quercus; Sambucus; Taxus baccata; axles; barrels; buckets; furniture; historical records; raw materials; scoops; shrubs; trees; wood; woodlands; Poland
Abstract:
... This article presents the results of the wood identification of 3,867 everyday objects dated from the 9th to the 15th century AD, which were excavated from 48 medieval strongholds and early urban centres in Poland. The analyses have shown that medieval craftsmen used the wood of 27 tree and shrub taxa. The timber used the most was Pinus sylvestris (pine), Quercus sp. (oak), Fraxinus excelsior (ash ...
DOI:
10.1007/s00334-017-0644-9

35. The east-west migration of trees during the Eemian Interglacial registered on isopollen maps of Poland

Author:
Mirosława Kupryjanowicz; Dorota Nalepka; Irena Agnieszka Pidek; Adam Walanus; Zofia Balwierz; Krzysztof Bińka; Magdalena Fiłoc; Wojciech Granoszewski; Piotr Kołaczek; Aleksandra Majecka; Małgorzata Malkiewicz; Małgorzata Nita; Bożena Noryśkiewicz; Hanna Winter
Source:
Quaternary international 2018 v.467 pp. 178-191
ISSN:
1040-6182
Subject:
Abies alba; Alnus; Carpinus betulus; Corylus; Fraxinus; Picea; Quercus; Tilia; Ulmus; ice; melting; palynology; pollen; refuge habitats; shrubs; topographic slope; trees; Central European region; Eastern European region; Poland; Russia
Abstract:
... The directions of the post-Wartanian (post-Saalian) migration of some thermophilous trees and shrubs into the territory of Poland was reconstructed on the basis of isopollen maps, prepared for the Eemian Interglacial based on the palynological data from 187 Polish pollen profiles. Isopollen maps clearly demonstrated, that all thermophilous trees, which appeared in this area in the early Eemian (Qu ...
DOI:
10.1016/j.quaint.2017.08.034