在急性热应激期间的行为可塑性:热硬化增加了大胆的表达
Tyler M Goerge1, Donald B Miles1
1Department of Biological Sciences, Ohio University, 7 Irvine Hall, Athens, OH 45701, USA.
Journal of thermal biology
|January 3, 2024
概括
气候变化促使的热强化,增加了大胆. 这种行为转变可能有助于在新的热环境中生存,但也带来了诸如增加掠食的风险.
科学领域:
- 生态学和进化生物学.
- 行为生态学 行为生态学
- 气候变化生物学
背景情况:
- 气候变化正在改变全球热环境,需要物种适应.
- 现型可塑性,如热硬化,可能有助于生物应对热应激.
- 了解热硬化的健康后果对于预测物种持久性至关重要.
研究的目的:
- 为了研究热硬化对树 (Urosaurus ornatus) 的大胆行为的影响.
- 为了确定与热硬化相关的行为变化是否在不断变化的气候中具有适应性.
主要方法:
- 将Urosaurus ornatus暴露在一个加热硬化协议中.
- 在热硬化之前和之后,量化大胆性行为的变化.
- 测量现场活体体温与大胆的关系.
主要成果:
- 热硬化显著增加了Urosaurus ornatus的大胆表达,特别是在雄性中.
- 更大胆的个体表现出较低的现场活动体温.
- 行为反应可能会增强领土性,但也会增加掠食风险.
结论:
- 热硬化诱导行为转变,特别是增加大胆,在树.
- 这些转变在资源获取和掠夺风险之间存在潜在的权衡.
- 需要进一步的研究来评估这些表型变化的长期适应潜力,以应对气候变化.
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