期刊
IBIS
卷 155, 期 1, 页码 189-193出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1474-919X.2012.01264.x
关键词
aggression; Erythrura gouldiae; Gouldian Finch; interspecific competition; Longtailed Finch; Poephila acuticauda
类别
资金
- Macquarie University
- ARC
- Save the Gouldian
Gouldian Erythrura gouldiae and Long-tailed Finches Poephila acuticauda are morphologically and ecologically similar sympatric species, for which social dominance relationships are likely to determine access to critical limiting resources. Building on previous research showing that Long-tailed Finches dominate competition for nest-sites, I staged dyadic contests for food between the two species in captivity in order to test social dominance dynamics under controlled conditions. Long-tailed Finches were likely to dominate interactions with Gouldian Finches and expressed higher levels of aggression while competing for access to food. These results suggest a stable dominance relationship between the two species which could be affecting Gouldian Finches' access to food resources in the wild, potentially constraining their ability to recover from recent population declines.
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