在1982-2024年期间,在赫尔半岛 (北波兰) 森林中春季迁徙期间,欧亚和他的鸟类猎物之间的捕食者-猎物动态
Kamila Cymerman1, Magdalena Remisiewicz1
1Bird Migration Research Station, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
Animals : an open access journal from MDPI
|February 27, 2026
概括
气候变化影响鸟类的捕食者-猎物动态. 欧亚鸟调整春季迁徙时间以匹配猎物的可用性,对温度变化表现出性别特异的反应.
科学领域:
- 鸟类学 鸟类学是一门学科.
- 生态生态学 生态生态学
- 气候变化研究 气候变化研究
背景情况:
- 捕食者与猎物的相互作用对于生态系统的稳定性至关重要.
- 气候变化对鸟类捕食者-猎物动态的影响,特别是时间,仍然没有得到充分的研究.
- 欧亚鸟是影响鸟类群落的关键鸟类捕食者.
研究的目的:
- 调查欧亚鸟春季迁徙时间及其主要鸟类捕食物种之间的关系.
- 评估气候变量如何影响这些捕食者与猎物的相互作用.
- 了解迁移时间的潜在性别特定调整.
主要方法:
- 长期鸟数据 (1982-2021) 欧亚鸟和主要的猎物物种在波兰赫尔半岛.
- 分析每日迁移过境时间和中位数过境日期.
- 通过2024年收集的取物来识别猎物.
- 迁移时间,猎物可用性和温度数据之间的相关性分析.
主要成果:
- 欧亚鸟的中位数过境日期显示出显著的变化,但没有长期趋势,与猎物物种和温度相关.
- 在成年雄性鸟迁徙和欧洲红,成年雌性和欧亚黑鸟,以及年轻雌性和歌之间发现了相关性.
- 迁移时间受到前几个月和迁移地点的温度异常的影响,观察到性别特定的模式.
结论:
- 欧亚鸟表现出灵活的迁徙时间,适应关键猎物物种的表态,有性别特异性的证据.
- 气候变化,通过温度变化,影响这些捕食者与猎物的相互作用.
- 了解这些动态对于预测气候变化对森林生态系统的影响至关重要.
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