矮人蒙古斯在炎热的天气中由于有限的行为可塑性而失去体重
Lauren S Vane1, Josh J Arbon1, Amy Morris-Drake1
1School of Biological Sciences University of Bristol Bristol UK.
Ecology and evolution
|September 8, 2025
概括
气候变化影响野生动物. 矮猩猩在炎热的日子里调整活动,但仍然失去体重,这表明行为可塑性有限的物种的风险不断升级.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 动物行为 动物行为
背景情况:
- 气候变化正在增加全球气温.
- 高温会对野生动物的生理和行为产生负面影响.
- 行为可塑性可以帮助物种应对环境变化.
研究的目的:
- 为了研究高温对矮蒙古斯 (Helogale parvula) 日常活动,运动和身体质量的影响.
- 评估行为可塑性在缓解野生哺乳动物热应激中的作用.
- 了解热浪对野生动物的长期影响.
主要方法:
- 利用了来自野生矮人蒙古群的长期观测数据.
- 热天 (≥35°C) 和冷天 (≤33°C) 的活动模式,运动和体重进行比较.
- 分析了出现/撤退时间的变化,地面上花费的时间,不活动和移动的距离.
主要成果:
- 矮人蒙古斯早些时候出现,在炎热的日子晚些时候撤退,延长了它们的活跃期.
- 没有观察到在洞穴中花费的时间,不活动比例或食移动距离的显著变化.
- 成人和幼都在炎热的日子里表现出体质增加的减少,连续炎热天的累积负面影响.
结论:
- 矮人蒙古斯表现出一些行为可塑性来应对热量,但不足以完全减轻负面影响.
- 在炎热的日子减少体重增加表明生理成本没有得到充分的补偿.
- 升级的热浪对野生动物,特别是适应能力有限的物种构成重大风险.
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