背包卫星发射器降低了大的生存率,但并没有降低大的筑巢倾向或成功
Bryan S Stevens1,2, Courtney J Conway3, Cody A Tisdale1
1Idaho Cooperative Fish and Wildlife Research Unit, Department of Fish and Wildlife Sciences University of Idaho Moscow Idaho USA.
Ecology and evolution
|December 19, 2023
概括
GPS背包减少了大的生存率,但没有影响它们的筑巢成功,为野生动物遥测研究提供了关键的见解. 这项研究比较了GPS和VHF发射器对生存和繁殖行为的影响.
科学领域:
- 野生动物生态学野生动物生态学
- 动物远程测量动物远程测量
- 保护生物学 保护生物学
背景情况:
- 传统的非常高频 (VHF) 无线电遥测和全球定位系统 (GPS) 遥测对于野生动物研究至关重要.
- 最近的研究表明,GPS背包发射器对大 (Centrocercus urophasianus) 的潜在生存影响.
- GPS背包对的繁殖行为和成功的影响在很大程度上仍未得到研究.
研究的目的:
- 为了比较配备VHF项圈的的生存,繁殖行为和巢的成功,与GPS背包发射器相比.
- 为野生动物研究提供不同遥测方法之间的权衡提供经验数据.
- 为正在进行的关于GPS背包适合草研究的辩论提供信息.
主要方法:
- 在美国爱达荷州中部进行的一项为期7年的实地研究中,监测了装有VHF领和GPS背包发射器的.
- 统计学分析了生存率,繁殖行为 (巢开始,时间) 和巢成功.
- 两种发射器类型之间的死亡概率和存率进行了比较.
主要成果:
- 与VHF领相比,GPS背包显著降低了的春夏生存率,每日死亡概率比VHF领高68%-82%.
- 没有观察到GPS背包对成功或启动时间产生一致的影响.
- 虽然每日生存率每年波动,但发射器类型在统计学上显示无意义的影响.
结论:
- 这些发现支持了先前关于与GPS背包相关的生存率下降的研究.
- 尽管对生存有影响,但GPS发射器似乎不会对巢成功等关键生殖组件产生负面影响.
- 该研究强调了在选择远程测量设备用于野生动物研究时考虑生存和生殖权衡的重要性.
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