Results 161 to 170 of about 67,369 (357)

Environmental drivers influencing the ambrosia beetle community: The primary role of geographic and climatic drivers in chestnut‐growing areas

open access: yesAgricultural and Forest Entomology, EarlyView.
Ethanol‐baited traps were placed in cultivated chestnut orchards (a) and mixed environments with assorted tree composition (b), over a 2‐year monitoring period in two valleys (NW Italy). A total of 118,286 ambrosia beetles was collected, representing six species.
Eleonora Vittoria Fontana   +1 more
wiley   +1 more source

Changing climates and environments within the complex Middle to Late Pleistocene fill of an overdeepened valley at Niederweningen, Switzerland

open access: yesBoreas, EarlyView.
Glacially overdeepened valleys in the northern Alpine Foreland preserve Middle to Late Pleistocene sedimentary sequences that may serve as valuable archives for reconstructing past environmental changes in response to shifts in climate. This study presents a multidisciplinary analysis of two sediment cores from the overdeepened Wehntal Valley at ...
Johannes M. Miocic   +8 more
wiley   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Embriogênese somática em Araucaria angustifolia (Bert.) O. Kuntze: pontos de controle e aspectos do metabolismo / [PDF]

open access: yes, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias.Durante grande parte do século XX a Araucaria angustifolia (Bert.) O.
Santos, André Luis Wendt dos
core  

Palaeoenvironmental and climatic changes from the lateglacial of the Saalian to the Late Weichselian in central Poland: a multiproxy study from Józefów

open access: yesBoreas, EarlyView.
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka   +11 more
wiley   +1 more source

QUANTITATIVE FORESTS DESCRIPTION FROM SKARDU, GILGIT AND ASTORE DISTRICTS OF GILGIT-BALTISTAN, PAKISTAN

open access: yesFUUAST Journal of Biology, 2011
A quantitative study of forest vegetation was conducted in 40 stands from three District of Gilgit-Baltistan. On the basis of phytosociological analysis and maximum important value index, following 5 pure stands and 5 communities of mixed tree species ...
MUHAMMAD AKBAR   +4 more
doaj  

Variable species establishment in response to microhabitat indicates different likelihoods of climate‐driven range shifts

open access: yesEcography, EarlyView.
Climate change is causing geographic range shifts globally, and understanding the factors that influence species' range expansions is crucial for predicting future biodiversity changes. A common, yet untested, assumption in forecasting approaches is that species will shift beyond current range edges into new habitats as they become macroclimatically ...
Nathalie Isabelle Chardon   +5 more
wiley   +1 more source

Lagged climate‐driven range shifts at species' leading, but not trailing, range edges revealed by multispecies seed addition experiment

open access: yesEcography, EarlyView.
Climate change is causing many species' ranges to shift upslope to higher elevations as species track their climatic requirements. However, many species have not shifted in pace with recent warming (i.e. ‘range stasis'), possibly due to demographic lags or microclimatic buffering.
Katie J. A. Goodwin   +4 more
wiley   +1 more source

Landscape and Geography Determine Saproxylic Beetle Captures in Pheromone‐Baited Traps

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Pheromone‐baited traps at 39 forest sites across southern Sweden captured 58 saproxylic beetle species, including seven Red‐listed taxa. The effect of surrounding forest cover on beetle abundance may depend on latitude and longitude: positive effects were strongest in warmer southern and eastern regions but weakened or reversed in colder northwestern ...
Markus Franzén   +4 more
wiley   +1 more source

Heart rot of spruce and alder in forests of Latvia [PDF]

open access: yes, 2012
Heart rot causes great decrease in timber quality throughout the world. In the conifer forests of Northern Hemisphere the most significant losses are caused by fungi from the Heterobasidion annosum species complex. The spread of the disease is favored by
Arhipova, Natalija
core  

Home - About - Disclaimer - Privacy