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全球捕食模式因气候变化而受到破坏
Vojtěch Kubelka1,2, Miroslav Šálek3, Pavel Tomkovich4
1Department of Ecology, Charles University in Prague, Vinicna 7, 128 44, Prague, Czech Republic. kubelkav@gmail.com t.szekely@bath.ac.uk.
概括
气候变化在全球范围内增加了鸟的食. 一旦在热带地区最高, 掠食率已经逆转,
科学领域:
- 生态学
- 气候变化生物学
- 保护生物学
背景情况:
- 气候变化正在改变生态过程和物种间的相互作用.
- 气候变化对物种相互作用的全球影响,
- 在全球范围内记录这些影响对于保护工作至关重要.
研究的目的:
- 在过去的70年里, 调查鸟掠夺的全球趋势.
- 确定气候变化是否影响了食的度模式.
- 评估捕食的观察变化与捕食者与猎物的气候变化之间的关系.
主要方法:
- 使用了来自全球237个种群的38,191个的综合数据库.
- 在70年的时间里分析了捕食率.
- 历史度梯度与近期的捕食模式进行比较.
主要成果:
- 在过去的七十年里, 海鸟在全世界的巢穴掠夺率有所增加.
- 在北半球发生了历史度梯度的逆转.
- 在北极地区的食率显著增加.
结论:
- 全球气候变化导致海鸟的数量大幅增加.
- 观察到的捕食模式的变化,特别是在北极地区,与捕食者与猎物关系的气候变化一致.
- 这些发现突显了气候变化对鸟类繁殖成功和生态系统动态的影响.
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