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寒冷的冬季息地:寻求温暖和柔软的雪
Mathilde Poirier1,2,3, Gilles Gauthier4,5, Florent Domine4,6,7
1Centre d'Études Nordiques, Université Laval, Pavillon Abitibi-Price, 2405, rue de la Terrasse, Québec, QC, Canada. mathildepoirier05@gmail.com.
Oecologia
|June 23, 2023
概括
由于深厚的雪地, lemmings 喜欢沿河息地冬季生存,但密集的基底雪地阻碍了繁殖. 气候变化可能会通过改变雪地条件,对 lemming 种群产生负面影响.
科学领域:
- 生态生态学 生态生态学
- 北极生物学 北极生物学
- 哺乳动物学 哺乳动物学
背景情况:
- 在北极冬季,像 lemmings 这样的小哺乳动物利用雪地作为绝缘和食.
- 雪地的异质性影响着的息地选择和繁殖成功.
研究的目的:
- 调查雪的物理性质对 lemming 息地使用和冬季繁殖的影响.
- 评估在不同北极息地与雪特征相关的 lemming 种群动态.
主要方法:
- 长期监测的冬季 (13年) 和雪的特性 (6年).
- 在四个不同的息地进行现场采样:加拿大高北极的比洛特岛的 mesic,河,灌木和湿地.
主要成果:
- 由于更深,更温暖的雪地,雷明族密集地使用河岸息地.
- 在更深的雪囊中,更密集的基底积雪与的冬季繁殖有负相关性.
- 灌木提供了适度的条件,但雪的质量取决于天气.
结论:
- 雪地深度,温度和基底层特征显著影响着的冬季生态.
- 气候变化引起的雪盖的变化,如硬化和延迟积累,对北极 lemming 种群构成威胁.
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