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牛的冬季活动和休眠:避免结和食物短缺的策略面对雪罩短缺

Anna M Lipińska¹, Zofia Książkiewicz², Adam M Ćmiel¹

¹Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120 Kraków, Poland.

Animals : an open access journal from MDPI

|February 13, 2025

概括

像Vertigo物种这样的陆地牛在冬季表现出有限的活动和避免结的策略. 温度显著影响它们的生存和分布,气候变化带来了挑战.

科学领域:

*生态学和进化生物学
* 动物学动物学
* 气候变化生物学

背景情况:

*陆地牛的生存和分布在很大程度上受到寒冷耐受性的影响,特别是在严酷的冬季条件下.
* 预测物种对气候变化的反应需要了解它们适应结温度的情况.

研究的目的:

* 评估两个微型鱼物种的冬季活动和耐寒策略:Vertigo antivertigo和V. moulinsiana.
*通过检查身体尺寸与度的变化来研究潜在的局部适应.
* 了解温度作为活动,生存和形态学的驱动因素的作用.

主要方法:

* 在受控温度 (0°C,2°C,5°C) 下观察到牛活动模式.
*测量超冷点 (SCP),以评估避免结的策略.
*分析了不同波兰种群的贝形态,以探索当地适应.

主要成果:

*随着温度下降,牛活动显著下降,在0°C时达到最低水平.
* 两种物种都采用了避免结的策略,V. moulinsiana的SCP值更高,表明它们适应了较温和的条件.
* 在不同种群中观察到的外尺寸的形态差异表明了当地适应.

结论:

*温度是调节陆地牛活动,生存和形态特征的关键因素.
* 冬季活动有限,既有食的机会,也有过冬的风险.
*气候变化导致无雪的冬季,可能对牛种群及其地理范围构成重大威胁.

关键词:

适应性策略适应性策略寒冷耐受性耐寒性耐寒性休眠状态休眠状态环境梯度环境梯度环境梯度陆地牛陆地牛低温活动活动低温活动活动贝形态学贝形态学缺少雪地覆盖缺少雪地覆盖超冷点 (SCP) 是一个超冷点.冬季活动冬季活动

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