Distribution, abundance and niche breadth of birds:: scale matters

被引:40
作者
Brändle, M [1 ]
Brandl, R [1 ]
机构
[1] UFZ Helmholtz Ctr Environm Res, Dept Community Ecol, D-06120 Halle, Germany
来源
GLOBAL ECOLOGY AND BIOGEOGRAPHY | 2001年 / 10卷 / 02期
关键词
abundance; Africa; Afrotropical birds; body size; distribution; habitat niche breadth; Kenya; macroecology; Tsavo East National Park;
D O I
10.1046/j.1466-822x.2001.00213.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
We used local habitat niche breadth, local abundance and body size of non-passerine afro-tropical birds in Tsavo East National Park (Kenya) to predict species distributional ranges in Kenya and across Africa. Univariate analysis revealed a significant positive correlation between local abundance and distribution only on the scale of Kenya. Performing a multiple regression analysis, local abundance, local habitat niche breadth and body size explained a significant part of the variance in bird distribution, again only on the Kenyan scale. From these results, we speculate that on continental scales distributions may be more influenced by macroclimatic conditions and historical factors, whereas distributions on regional scales are predominantly influenced by ecological factors.
引用
收藏
页码:173 / 177
页数:5
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