散养山兔性别相关饲粮组成的定量分析

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-06-05 DOI:10.4404/HYSTRIX-00271-2019

M. Rehnus, K. Bollmann

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引用次数: 1

摘要

生境利用的变异性影响动物分布，并可能导致不同性别和个体的不同生活史。这种差异经常在两性二态的物种中观察到，但在单态物种中鲜为人知。在本研究中，我们研究了一种单态物种山兔(Lepus timidus)在交配季节(春季)和繁殖后时期(秋季)饮食的性别差异。我们通过对2015年至2017年在瑞士国家公园进行的非侵入性遗传种群监测中调查的18只个体(8只雄性，10只雌性)的颗粒进行显微组织学分析，研究了饮食组成。我们发现，不同季节和性别的饮食构成存在显著差异。雌性在交配季节消耗的谷粒素比例较高，可能是由于在一年中的这个时候能量需求较高。我们的研究表明，应进一步关注单态物种的性别特异性饮食组成。

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Quantification of sex-related diet composition by free-ranging mountain hares ( Lepus timidus )

Variability in habitat use influences animal distribution and can lead to different life-histories across sexes and individuals. Such differences are frequently observed in species with sexual dimorphism, but less known in monomorphic species. In this study, we investigated sex-related differences in the diet of the mountain hare (Lepus timidus) — a monomorphic species — during the mating season (spring) and the post-reproductive period (autumn). We investigated the diet composition by the microhistological analysis of pellets of 18 individuals (8 males, 10 females) which were surveyed from 2015 to 2017 by a non-invasive genetic population monitoring in the Swiss National Park. We found significant differences in diet composition between seasons and sexes. Females consumed a higher proportion of graminoids in the mating season, probably due to higher energetic needs at that time of the year. Our study shows that further attention should be given to sex-specific diet composition of monomorphic species.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.