نتایج جستجو برای: range ecology

تعداد نتایج: 714717  

Journal: :Ecography 2021

Identifying the factors modulating range expansion is essential to accurately predict changes in spatial distribution of populations. By preventing population growth after dispersal, Allee effects can lead front stops discrete space, called 'pinning' if permanent. However, other mechanisms, such as positive density-dependent have also been shown affect rate and generate discrete-space stops, al...

Journal: :Ecology 2013
Christopher C Wilmers Taal Levi

herd. Ecology 94:1246–1256. Sawyer, H., and M. J. Kauffman. 2011. Stopover ecology of a migratory ungulate. Journal of Animal Ecology 80:1078–1087. Sharma, S., S. Couturier, and S. D. Côté. 2009. Impacts of climate change on the seasonal distribution of migratory caribou. Global Change Biology 15:2549–2562. Stien, A., L. E. Loe, A. Mysterud, T. Severinsen, J. Kohler, and R. Langvatn. 2010. Icin...

2004
Karl S. Zimmerer

Cultural ecology is today at a place of rapidly expanding interconnections with the growing number of human-environment approaches in geography and other fields. Productive interconnections are evidenced, for example, in the extensive debate and discussion within geography that surround the varied relations (e.g., theory, methods, roles of science and representation, scale and subject matter) o...

2014
Ian T Baldwin

Modern research in ecology draws upon a wide range of different techniques and can offer fresh insights on how to tackle a range of challenges facing the natural world.

Journal: :Proceedings. Biological sciences 2009
Kaustuv Roy Gene Hunt David Jablonski Andrew Z Krug James W Valentine

Understanding the factors that determine the geographic range limits of species is important for many questions in ecology, evolution and conservation biology. These limits arise from complex interactions among ecology and dispersal ability of species and the physical environment, but many of the underlying traits can be conserved among related species and clades. Thus, the range limits of spec...

2009
Noah Fierer A. Stuart Grandy Johan Six Eldor A. Paul

The field of soil ecology has relatively few fundamental unifying principles that can be used to explain and predict patterns and processes in belowground ecosystems. Here we propose that a first step towards developing a more comprehensive set of unifying principles in soil ecology is to identify and understand the characteristics shared by a wide range of soils, the common mechanisms driving ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1390

سازند سروک در برش تنگ باولک، جنوب ایلام شامل 870 متر سنگ آهک، سنگ آهک رسی، سنگ آهک دولومیتی، سنگ آهک گلوکونیتی، سنگ آهک پیریتی و سنگ آهک چرتی است. با مطالعه 117 نمونه از نهشته های سازند سروک واقع در تاقدیس کبیرکوه، بیواستراتیگرافی بر اساس فرامینیفرا و چینه نگاری سکانسی این نهشته ها مورد بررسی قرار گرفت. مطالعات انجام شده بر روی فرامینیفرا در این برش منجر به شناسایی 35 گونه از 14 جنس متعلق به فر...

Ecolinguistics: language and ecology delivers an overall view and a critical approach on ecolinguistic studies. This book is an excellent resource to students, researchers, linguists and those working in the area of discourse analysis as well as ecology. The book claims presenting a news course for ecolinguistics including a framework for understanding the theory of ecolinguistics, exploration ...

2008
F. A. Dijkstra A. R. Mosier D. G. Milchunas

1 USDA-ARS, Rangel and Resources Research Unit, Fort Collins, CO 80526, USA; 2 Department of Botany and Program in Ecology, University of Wyoming, Laramie, WY 82071, USA; 3 USDA-ARS Soil–Plant-Nutrient Research Unit, Fort Collins, CO 80526, USA; 4 Department of Soil, Water and Climate; and 5 Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, USA; and 6 F...

Journal: :American journal of physical anthropology 2012
Frank P Cuozzo Peter S Ungar Michelle L Sauther

Teeth are central for the study of ecology, as teeth are at the direct interface between an organism and its environment. Recent years have witnessed a rapid growth in the use of teeth to understand a broad range of topics in living and fossil primate biology. This in part reflects new techniques for assessing ways in which teeth respond to, and interact with, an organism's environment. Long-te...

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