A landscape-scale experimental test of factors driving mammal declines in northern Australia

对澳大利亚北部哺乳动物数量减少因素的景观规模实验测试

• 批准号: LP0561555
• 负责人: Prof Barry Brook
• 金额: $ 6.74万
• 依托单位: Charles Darwin University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-10-18 至 2009-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0561555
• 关键词: landscape; scale; experimental; test; factors

Australia has suffered the highest rate of modern mammal extinctions in the world. Foxes have been largely responsible for this extinction in southern Australia and probably also Central Australia. However the decline in mammals in northern Australia has occurred later than that in the south, and in the absence of foxes. We will adopt an experimental approach to determine the mechanisms driving mammal declines and extinctions in northern Australia. Populations of brush-tail tree rats (Conilurus penicillatus) will be translocated to suitable habitat on mainland sites that experience different fire regimes and predation pressures.

澳大利亚的现代哺乳动物灭绝率最高。狐狸在很大程度上负责在澳大利亚南部的灭绝，也可能是澳大利亚中部。然而，澳大利亚北部的哺乳动物的下降比南部的哺乳动物的下降发生了，而在没有狐狸的情况下。我们将采用一种实验方法来确定在澳大利亚北部推动哺乳动物下降和灭绝的机制。刷尾树大鼠（Conilurus penicillatus）的种群将转移到经历不同火灾和捕食压力的大陆地点的合适栖息地。