The role of niche overlap, environmental heterogeneity, landscape roughness and productivity in shaping species abundance distributions along the Amazon-Andes gradient
详细信息 查看全文
- 作者：Gabriel Arellano ; Marí ; a N. Umañ ; a ; Manuel J. Mací ; a ; M. Isabel Loza ; Alfredo Fuentes ; Victoria Cala and Peter M. Jø ; rgensen
- 刊名：Global Ecology and Biogeography
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：26
- 期：2
- 页码：191-202
- 全文大小：493K
- ISSN：1466-8238
文摘
Statistical and ecological mechanisms shape species abundance distributions (SADs). A lack of correlation between ecological gradients and SAD shape would suggest that SADs are caused by purely statistical reasons. We evaluated the variation in the shape of SADs for communities in landscapes of differing variable connectivity, environmental heterogeneity, species niches overlap and productivity.