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Thomas A A Prowse¹, Aysegul Birand¹, Danielle Stephens²

¹School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia.

Molecular ecology

|November 23, 2024

概括

有效的种群规模 (Ne) 监测可以检测野生狗种群减少的控制努力. 然而,Ne可能是不可靠的高移民和低繁殖,影响管理策略.

科学领域:

生态生态学生态生态学
保护生物学保护生物学
人口遗传学人口遗传学

背景情况:

哺乳动物食肉动物,像野狗一样,在生态上很重要,但会引起人与野生动物的冲突.
由于有限的人口监测的不确定的影响,食肉动物的致命控制是有争议的.
有效种群大小 (Ne) 是评估对照疗效的潜在指标.

研究的目的:

调查监测Ne的可行性,以检测野生狗群体大小 (N) 在控制后减少.
在各种控制和遗传采样场景下,模拟野生狗超人口的动态.
在不同的人口和遗传条件下确定Ne作为N的代理的可靠性.

主要方法:

利用了来自澳大利亚野生狗的11年微卫星数据.
开发了一个基于个体的空间人口模型,整合了人口统计学,遗传学,交配,分散和移民.
模拟Ne和N轨迹在不同的除率和遗传采样下,使用无效模型进行显著性测试.

主要成果:

在野狗亚种群中观察到Ne的显著减少 (39%-62%),可能是由于控制努力.
层次交配系统削弱了对Ne的控制影响,因为附属繁殖补偿了主导移除.
Ne成为了N的不可靠的代理,具有强大的补偿性移民和弱的补偿性繁殖,可能会增加Ne在屠宰后.

结论:

网络监测可以为短期的管理决策提供关于野狗种群大小 (N) 的及时信息.
管理策略必须考虑交配系统和移民/繁殖动态,以准确解释Ne.
作为N的替代品,Ne的实用性取决于特定的生态因素,这凸显了在保护中需要谨慎应用的需要.

关键词:

丁哥 (Dingo) 是一个叫丁哥的动物.实际人口规模实际人口规模人类与野生动物之间的冲突包装结构包装结构人口监测,人口监测.捕食者控制捕食者控制捕食者控制社会制度社会制度的社会制度.野生狗野生狗野生狗

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