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雪地补丁避难所对危险地区的物种有好处-来自高海拔的强制性的证据

Forest P Hayes¹, Joel Berger^1,2

¹Department of Fish, Wildlife, and Conservation Biology, Colorado State University, 951 Amy Van Dyken Way, Fort Collins, CO 80521, USA.

|November 13, 2023

概括

山山羊使用雪地不是为了冷却,而是为了逃避昆虫的骚扰. 降雪覆盖面的减少威胁到适应寒冷的物种,它们面临着气候和生物变化的结合.

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:

了解生物对气候变化的反应对于保护快速变化的生物群至关重要.
适应寒冷的物种面临着温度升温带来的热挑战,降雪覆盖面减少,人们对它们的生存存在担忧.
物种通过行为和生理调整来减轻热应激的能力尚未完全理解.

研究的目的:

调查雪地对适应寒冷的物种在减轻热挑战中的功能作用.
测试由环境因素调节的温度变化对自主反应的预测.
为了确定山山羊是否利用雪地进行温度调节或其他好处.

主要方法:

在美国洛基山脉北部的两个地点研究山山羊 (Oreamnos americanus).
在雪地内外监测生理反应 (例如呼吸速率).
评估了风,环境温度和毛皮状况对动物反应的影响.
与雪地使用相关的量化昆虫骚扰水平.

主要成果:

与预期相反,山山羊在雪地上的呼吸率并没有下降.
雪地使用与减少昆虫骚扰有很强的相关性.
风和温度等环境因素并没有显著改变观察到的模式.

结论:

山山羊利用雪地主要是为了减少昆虫的骚扰,而不是为了温度调节.
降雪覆盖面对适应寒冷的物种构成双重挑战,包括热应激和改变生物相互作用.
在山地环境中物种的持久性取决于适应气候和生态社区的同时变化.

关键词:

行为适应行为适应气候变化气候变化气候变化昆虫的干扰昆虫的干扰雪雪雪雪雪雪雪热应力是一种热应力.

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