Results 81 to 90 of about 1,687,735 (269)

Holocene vegetation dynamics of Grande Terre (Kerguelen Islands) inferred from sedimentary ancient DNA

Journal of Quaternary Science, EarlyView.
ABSTRACT While the Antarctic region has experienced significant climatic changes over the Holocene, few high‐resolution records have examined their effects on the local biota. In order to understand past ecological shifts and forecast future changes, it is important to obtain high‐resolution palaeoecological records from this region.
Xaali O'Reilly‐Berkeley, Aloïs Revéret, Youri Lammers, Maaike Zwier, Anne E. Bjune, Fabien Arnaud, Jostein Bakke, Sandra Nogué, Inger G. Alsos   +8 more
wiley   +1 more source

Insect communities of late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Subfossil insect communities from the Quartz Creek site provide a detailed record of both Late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada. Fifteen Pleistocene assemblages (marine isotope stages [MIS] 4 to 2) are dominated by steppe–tundra and dry‐tundra taxa, particularly the weevils ...
Scott L. Cocker, Svetlana Kuzmina, Nick Schafstall, Michael A. Monzon, Duane G. Froese   +4 more
wiley   +1 more source

Impacts of Nano- and Microplastic Contamination on Soil Organisms and Soil–Plant Systems

Microplastics
Microplastic (MPL) and nanoplastic (NPL) contamination in soils is widespread, impacting soil invertebrates, microbial communities, and soil–plant systems.
Davi R. Munhoz, Nicolas Beriot
doaj   +1 more source

Stable isotope analysis of freshwater gastropod carbonates from Swanscombe: Insights into climate stability and seasonality during MIS 11c

Journal of Quaternary Science, EarlyView.
ABSTRACT Stable isotope analyses of freshwater mollusc carbonate can record environmental conditions at the time of mineralisation, yet this technique remains underused in British Middle Pleistocene fluvial sequences, despite the abundance of fossil shell material in these deposits.
Jennifer E. Sherriff, Ian Candy, Adrian P. Palmer, Danielle C. Schreve, Tom S. White   +4 more
wiley   +1 more source

Efeitos da distância entre iscas nas estimativas de abundância e riqueza de formigas em uma floresta de terra-firme na Amazônia Central Effects of bait spacing on ant abundance and richness in one forest at Central Amazonia

Acta Amazonica, 2011
Coletas com iscas são amplamente utilizadas para investigar a atividade de formigas de solo e vegetação e também podem ser empregadas para estimar o número de espécies e a abundância de formigas.
Fabricio Beggiato Baccaro, Suzana Maria Ketelhut, José Wellington de Morais   +2 more
doaj   +1 more source

Burrow use by Saharan striped polecat (Poecilictis libyca) in an agricultural area of central Tunisia

The Journal of Wildlife Management, EarlyView.
Saharan striped polecats in agricultural landscapes use many burrows (30–35 per season), facilitated by sandy soils. Burrow sharing is rare and mainly occurs between males and females during mating. Habitat use shifts seasonally, reflecting disturbance and soil conditions. Maintaining stable sandy habitats may be critical for persistence.
Firas Hayder, Zimkitha J. K. Madikiza, Emmanuel Do Linh San   +2 more
wiley   +1 more source

[United States Soil Survey Report]

, 1985
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads.
Texas Agricultural Experiment Station, United States. Soil Conservation Service., Texas State Soil and Water Conservation Board   +2 more
core   +1 more source

[United States Soil Survey Report]

, 1994
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads.
Texas Agricultural Experiment Station, United States. Soil Conservation Service., Texas State Soil and Water Conservation Board   +2 more
core   +2 more sources

Cotton strips as a model substrate for analysis of leaf‐litter‐colonizing microbial assemblages in streams

Limnology and Oceanography: Methods, EarlyView.
Abstract Leaf‐litter decomposition is a key indicator of the functional integrity of stream ecosystems and cotton strips have been employed as a standard substrate for quantification of litter‐decomposition rates in streams across the globe. Cotton strips also offer a standardized method for assessing structural integrity of stream microbial ...
Trinity Shoemaker, Cynthia Nguyen, Scott D. Tiegs, David M. Costello, John J. Kelly   +4 more
wiley   +1 more source

Proximity to wind turbines altered plant–pollinator dynamics in prairie and sagebrush ecosystems in Wyoming, USA

Nordic Journal of Botany, EarlyView.
Wind turbines influence several abiotic conditions in the environments they are sited in and may influence the behavior and movement of insect pollinators. It is unknown how operating turbines influence plant–pollinator interactions. To investigate if pollination dynamics could be affected by the presence of wind turbines, we recorded videos of ...
Michelle Weschler, Brenna Martin, Lusha Tronstad   +2 more
wiley   +1 more source