印记息地选择在猛禽物种的分散阶段之间有所不同
Florian Orgeret1, Urs G Kormann2, Benedetta Catitti2
1Swiss Ornithological Institute, Sempach, Switzerland. florianorgeret@gmail.com.
Scientific reports
|November 4, 2024
概括
天生息地偏好诱导 (NHPI) 影响动物定居的地方. 红风根据它们的出生地点和分散阶段显示出不同的息地偏好,高海拔的鸟类避免了类似的地区,而农田鸟类更喜欢它们.
科学领域:
- 生态生态学 生态生态学
- 动物行为 动物行为
- 保护生物学 保护生物学
背景情况:
- 天生息地偏好诱导 (NHPI) 对分散动物的定居决定产生重大影响.
- 有限的研究存在于NHPI在分散阶段和出生息地类型的变化.
研究的目的:
- 调查NHPI在出生分散期间以及在红风的不同出生息地之间如何变化.
- 了解出生息地对后续息地选择的遗留影响.
主要方法:
- 利用GPS跟踪数据从77个年轻的红风 (Milvus milvus) 在瑞士.
- 应用基于个体的阶段选择分析来建模从独立到定居的息地选择.
- 根据出生息地特征 (海拔,土地覆盖) 检查的NHPI.
主要成果:
- 在勘探期间,红风喜欢与其出生环境相似的息地.
- 在定居阶段,来自高海拔/城市近郊地区的鸟类显示负NHPI (避免类似息地).
- 来自农田/牧场丰富地区的鸟类表现出积极的NHPI (偏好类似息地).
- 根据出生息地类型,NHPI的大小和变化有显著差异.
结论:
- NHPI的强度,方向和个体变化取决于出生息地类型和分散阶段.
- 天生息地对红的后续息地选择产生了普遍的遗留影响.
- 这些发现对了解人口动态和范围转移有影响.
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