Physiological adaptations to semi-aquatic habits: the thermogenic macronutrient intake of the Eurasian otter

IF 4.3 2区 生物学 Q1 ECOLOGY Mammal Review Pub Date : 2024-04-21 DOI:10.1111/mam.12354
Lara Baggio, Giacomo Mosconi, Paolo Tremolada, Alessandro Nessi, Alessandro Balestrieri
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对半水栖习性的生理适应:欧亚水獭的产热宏量营养素摄入量
在水中保持热平衡是半水栖哺乳动物面临的一大挑战,这需要在形态、行为和生理方面做出适应性调整。觅食策略和食物诱导产热(DIT)有助于在寒冷环境中调节体温。由于不同常量营养素的诱导产热不同,半水栖哺乳动物可能会调节其常量营养素的比例,以提高体温调节能力。我们通过查阅欧洲各地有关水獭饮食的现有文献,并通过实验室分析评估构成水獭主要食物的非商业鱼类的营养成分,估计了一种广泛分布的半水栖鼬科动物--欧亚水獭的营养摄入目标。蛋白质能量的平均百分比高于典型的超肉食动物,并且随着水温的降低而呈上升趋势。蛋白质消化引起的生热效应所提供的额外热源可能有助于平衡热量损失,补偿蛋白质摄入过量所带来的成本。如果像化石记录所显示的那样,半水栖习性是在水獭的 "鱼类专家 "牙齿发育之后出现的,那么以鱼类为主食的生热效应可能促进了水獭与水栖息地之间的密切关系。
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来源期刊
Mammal Review
Mammal Review 生物-动物学
CiteScore
12.20
自引率
4.10%
发文量
29
审稿时长
>12 weeks
期刊介绍: Mammal Review is the official scientific periodical of the Mammal Society, and covers all aspects of mammalian biology and ecology, including behavioural ecology, biogeography, conservation, ecology, ethology, evolution, genetics, human ecology, management, morphology, and taxonomy. We publish Reviews drawing together information from various sources in the public domain for a new synthesis or analysis of mammalian biology; Predictive Reviews using quantitative models to provide insights into mammalian biology; Perspectives presenting original views on any aspect of mammalian biology; Comments in response to papers published in Mammal Review; and Short Communications describing new findings or methods in mammalian biology.
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