存在缺席调查提供了关于息地的一种危的森林息海鸟的空间不准确的信息
Jonathon J Valente1, Lindsay J Adrean2, S Kim Nelson3
1U.S. Geological Survey, Alabama Cooperative Fish and Wildlife Research Unit, College of Forestry, Wildlife and Environment, Auburn University, Auburn, AL, United States of America.
PloS one
|December 12, 2024
概括
存在-缺席调查可以表明有潜力的大理石鸟巢息地,但对于确认活跃的巢穴地点是不可靠的. 至少需要20次调查才能确定没有筑巢活动.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 野生动物管理 野生动物管理
背景情况:
- 存在缺席调查对于监测罕见物种是常见的.
- 它们用于推断繁殖活动的可靠性需要验证.
- 大理石 (Brachyramphus marmoratus) 是一个息在古老森林中的息危的海鸟.
研究的目的:
- 测试存在-缺席调查在识别大理石鸟息地方面的有效性.
- 评估这些调查作为繁殖活动的代理的实用性.
主要方法:
- 在已知活和控制地点 (被占用/未被占用站点) 的200米范围内进行了存在缺席调查.
- 基于现场状态和距离,模拟了检测子的概率.
- 在活跃的巢点和控制点之间比较检测概率.
主要成果:
- 在空置的控制站点中从未检测到木.
- 在活跃的筑巢地点 (0.81) 的检测概率略高于被占领的对照地点 (0.71).
- 检测繁殖行为的概率很低 (0.20) 并且在不同地点一致.
结论:
- 存在-缺席调查可以确定可信的大理石鸟息地,但不能确定活跃的巢.
- 这些调查不足以确认没有筑巢活动;建议进行20次调查.
- 仅仅依靠存在-缺席数据对育种地点的识别有局限性.
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