来自新热带非繁殖地的记录揭示了60年来鸟类迁徙现象学的转变
Daniel A Gutiérrez-Carrillo1, Bryam Mateus-Aguilar2, Camila Gómez3
1Laboratorio de Biología Evolutiva de Vertebrados, Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá 111711, Colombia; Department of Biological Sciences, Florida State University, Tallahassee, FL 32306, USA.
Current biology : CB
|September 27, 2024
概括
鸟类迁徙的时间已经转移到热带非繁殖地区,观察到春季和秋季迁徙模式的变化. 这些现象学变化是特定于物种的,并受到繁殖和非繁殖场的气候的影响.
科学领域:
- 鸟类学 鸟类学是一门学科.
- 全球变化生物学
- 保护科学 保护科学
背景情况:
- 由于全球变化导致的鸟类迁徙现象学的变化在温带繁殖场上得到了充分记录,经常显示早春到来.
- 然而,热带非繁殖场的现象变化在很大程度上未被研究,这阻碍了对迁移模式的全面理解.
- 调查非繁殖场对于确定观察到的迁移转移背后的驱动因素及其对生物多样性的影响至关重要.
研究的目的:
- 评估哥伦比亚12只近北极-新热带远程迁徙鸟类在60年间迁徙现象学的变化.
- 探索共享繁殖和非繁殖气候的作用,以解释物种之间观察到的现象模式的变化.
- 为了确定迁徙鸟类是否使用不同的线索来定时在非繁殖场的迁徙与繁殖场相比.
主要方法:
- 利用来自历史科学收藏和当代社区科学记录的数据.
- 在12种迁徙鸟类中,分析了60年来12种迁徙鸟类的迁徙现象学变化.
- 相关的现象学模式与共同的气候在繁殖和非繁殖的理由.
主要成果:
- 所有12种物种都表现出春季 (范围:-37至9天) 或秋季 (范围:-26至36天) 迁徙峰值过境日期的变化.
- 在物种之间观察到的现象模式变化部分是由共享的繁殖或过冬的气候所解释的.
- 结果表明,鸟类可能会使用不同的环境线索来定时在非繁殖场和繁殖场的迁徙.
结论:
- 迁徙鸟类的现象学在热带非繁殖场所显示出显著的变化,反映了在繁殖场所看到的模式.
- 气候的相似性会影响物种特定的迁徙时间调整.
- 进一步的研究将从收集和社区科学中整合长期数据集,对于了解全球变化对候鸟的影响至关重要.
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