Beyond Abundance: An experimental study of the effects of predators on prey behaviour and reproduction
Beyond Abundance: An experimental study of the effects of predators on prey behaviour and reproduction
批准号:
ARC : DP0344219
负责人:
A/Prof Ross Alford
金额:
$9.6万
依托单位:
依托单位国家:
澳大利亚
项目类别:
Discovery Projects
财政年份:
2003
资助国家:
澳大利亚
项目状态:
已结题
起止时间:
2003-01-01 至 2005-12-31
中文摘要
超越丰富:一项关于捕食者对猎物行为和繁殖影响的实验研究。了解上层捕食者对低营养水平群落组成和种群动态的影响是生态学的核心问题,对生态学理论和保护生物学具有重要意义。我们的研究将是第一批研究顶级捕食者的存在和不存在对中级捕食者的行为、繁殖和微栖息地利用的影响的研究之一。了解低层次物种的行为和生态如何随着顶级捕食者数量的变化而变化,将提高管理者减轻捕食者数量变化对被管理生态系统影响的能力。
英文摘要
Beyond Abundance: An experimental study of the effects of predators on prey behaviour and reproduction. Understanding the influence of top predators on community composition and population dynamics at lower trophic levels is a central problem in ecology, with important implications for ecological theory and conservation biology. Our study will be among the first to examine effects of presence and absence of top-level predators on the behaviour, reproduction, and microhabitat use of mid-level predators. Understanding how the behaviour and ecology of lower-level species change in response to changes in abundance of top-level predators will increase the ability of managers to mitigate the impacts of changes in predator abundance on managed ecosystems.
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