Heterogeneity in avian richness-environment relationships along the Pacific Crest Trail

Avian Conservation and Ecology

Deborah L. Elliott-Fisk,¹  Morgan W Tingley,²  Amy M. McGrann,³  Michael C. McGrann,⁴  James H. Thorne,⁵ 

[1] Department of Ecology and Evolutionary Biology, University of Connecticut;Division of Natural and Applied Sciences, Biology Department, William Jessup University, Rocklin, California;Department of Environmental Science and Policy, University of California, Davis;Department of Wildlife, Fish, and Conservation Biology, University of California, Davis;Woodrow Wilson School, Princeton University

关键词: birds;    California;    elevation gradient;    mega-transect;    net primary productivity;    precipitation;    species richness;    temperature;   

DOI  :  10.5751/ACE-00695-090208

学科分类：社会科学、人文和艺术（综合）

来源: Resilience Alliance Publications

【 摘 要 】

Predictions of the responses of montane bird communities to climate change generally presuppose that species and assemblages hold constant relationships to temperature across large study regions. However, comparative studies of avian communities exploring the factors that currently shape species richness patterns rarely analyze relationships across neighboring ecological regions of the same mountain chain. Evaluations of the intrinsic regional differences in species-environment relationships are needed to better inform expectations of how bird communities may be affected by future climate change.In this study, we evaluated the relative importance of three environmental factors (temperature, precipitation, and net primary productivity) in structuring avian richness patterns along a continuous mega-transect. We followed the route of the Pacific Crest Trail (PCT) (32.58

【 授权许可】

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