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高温与野生南方足巴巴的认知能力下降有关
Camilla Soravia1, Benjamin J Ashton1,2,3, Alex Thornton4
1Centre for Evolutionary Biology, School of Biological Sciences, University of Western Australia, Perth, Western Australia, Australia 6009.
Proceedings. Biological sciences
|November 21, 2023
概括
全球气温上升会影响野生动物的认知能力. 研究表明,热应激对南方足巴巴,特别是雌性动物的关联性学习和抑制性控制有负面影响,这突显了对野生动物认知功能的关键影响.
科学领域:
- 行为生态学 行为生态学
- 动物认知 动物认知
- 气候变化生物学 气候变化生物学
背景情况:
- 全球气温正在上升,对热量对野生动物生存和生理学的影响进行了大量研究.
- 然而,热应激对动物认知能力的影响仍未得到充分研究.
研究的目的:
- 研究自然发生的热应激对野生南方足巴巴 (Turdoides bicolor) 的认知表现的影响.
- 为了确定温度,散热行为或个体属性是否解释认知性能变化.
主要方法:
- 在不同的温度条件下,野生南方脚巴巴在协会学习,逆向学习和抑制控制任务上进行了测试.
- 认知表现与环境温度,散热行为和个体特征相关分析.
主要成果:
- 当温度超过38°C时,关联式学习的表现显著下降,学习需要两倍的试验.
- 在更高的温度下,女性的抑制控制受损,而逆向学习没有显示出与温度相关的下降.
- 散热行为没有预测认知表现,与环境温度不同.
结论:
- 这项研究为野生物种中温度介导的认知障碍提供了新的证据.
- 热应激对认知的影响是具体的任务和性别依赖,对野生动物适应气候变化的影响.
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