期刊
SCIENTIFIC REPORTS
卷 10, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41598-020-75470-2
关键词
-
资金
- Natural Sciences and Research Council and Canada, NSERC
- Environment and Climate Change Canada
- GoGlobal program at the University of British Columbia
- Chilean Ministry of the Environment
- Peregrine Fund
- Idea Wild Fund
- Rufford Small Grants Foundation
- Neotropical Ornithological Society's Francois Vuilleumier Fund for Research on Neotropical Birds
- Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) [REDES150047]
- Comision Nacional de Investigacion Cientifica y Tecnologica (FONDECYT de Inicio) [11160932]
- CONICYT [74160073]
Mountains produce distinct environmental gradients that may constrain or facilitate both the presence of avian species and/or specific combinations of functional traits. We addressed species richness and functional diversity to understand the relative importance of habitat structure and elevation in shaping avian diversity patterns in the south temperate Andes, Chile. During 2010-2018, we conducted 2202 point-counts in four mountain habitats (successional montane forest, old-growth montane forest, subalpine, and alpine) from 211 to 1,768 m in elevation and assembled trait data associated with resource use for each species to estimate species richness and functional diversity and turnover. We detected 74 species. Alpine specialists included 16 species (22%) occurring only above treeline with a mean elevational range of 298 m, while bird communities below treeline (78%) occupied a mean elevational range of 1,081 m. Treeline was an inflection line, above which species composition changed by 91% and there was a greater turnover in functional traits (2-3 times greater than communities below treeline). Alpine birds were almost exclusively migratory, inhabiting a restricted elevational range, and breeding in rock cavities. We conclude that elevation and habitat heterogeneity structure avian trait distributions and community composition, with a diverse ecotonal sub-alpine and a distinct alpine community.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据