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Energetics and life-history of bats in comparison to small mammals

机译：与小型哺乳动物相比，蝙蝠的能量学和生命史

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摘要

Mammals can be aligned along a slow-fast life-history continuum and a low-high metabolic rate continuum based on their traits. Small non-volant mammals occupy the fast/high end in both continua with high reproductive rates and short life spans linked with high mass-specific metabolic rates. Bats occupy the high end of the metabolic continuum, but the slow end of the life-history continuum with low reproductive rates and long life spans. Typically, both continua are linked, and similar life-history traits of species are reflected in more similar metabolic rates. We therefore hypothesized that metabolic rates are similar in species with similar life-history traits. Resting metabolic rates (RMR) were measured for three ecologically and morphologically similar sympatric bat species (Myotis nattereri, M. bechsteinii, and Plecotus auritus; Vespertilionidae) and compared to data from other similar-sized, temperate insectivorous mammals with other life-history strategies. The bat species share similar life-histories and RMRs, both of which differ from the remaining mammals and therefore supporting our hypothesis. To verify that bats are similar in RMR, two energetically contrasting periods were compared. RMRs in post-lactating females did not differ between bat species. It was, however, positively correlated with parasite load in both Myotis species. However, RMRs differed during energy-demanding pregnancy where M. nattereri had the significantly lowest RMR, suggesting metabolic compensation as an energy-saving strategy. We conclude that the energy requirements of bat species with similar life-history traits resemble each other during periods of low energetic demands and are more similar to each other than to other small temperate mammals.
机译：哺乳动物可以根据其特征，沿着慢速生活史连续体和低高代谢率连续体排列。小型非挥发性哺乳动物在连续性中具有较高的繁殖率，并且寿命短且与特定质量的代谢率较高有关，它们占据了快速/高端。蝙蝠占据新陈代谢连续体的高端，但是生命历史连续体的慢端具有低繁殖率和长寿命。通常，两个连续体都相关联，相似的物种生命历史特征反映在更相似的代谢率中。因此，我们假设具有相似生活史特征的物种的代谢率相似。测量了三种在生态和形态上相似的同伴蝙蝠物种（Myotis nattereri，M。bechsteinii和Plecotus auritus； Vespertilionidae）的静息代谢率（RMR），并将其与其他具有相同生活史策略的类似大小，温带食虫性哺乳动物的数据进行了比较。 。蝙蝠物种具有相似的生活史和RMR，两者均与其余哺乳动物不同，因此支持了我们的假设。为了验证蝙蝠在RMR中是否相似，比较了两个能量强烈的时期。哺乳后雌性的RMR在蝙蝠种类之间没有差异。然而，这与两种Myotis物种的寄生虫负荷均呈正相关。但是，在能量需求型妊娠期间，RMR有所不同，其中纳特氏菌的RMR最低，这表明代谢补偿是一种节能策略。我们得出的结论是，在生命力需求较低的时期，具有相似生活史特征的蝙蝠物种的能量需求彼此相似，并且彼此之间的相似性高于其他小型温带哺乳动物。

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  • 来源
    《Ecological research》 |2013年第2期|249-258|共10页
  • 作者

    N. I. Becker; J. A. Encarnacao; M. Tschapka; E. K. V. Kalko;

  • 作者单位

    Institute of Experimental Ecology, University of Ulm, Ulm, Germany,Mammalian Ecology Group, Department of Animal Ecology and Systematics, Justus-Liebig-University of Giessen, Giessen, Germany;

    Mammalian Ecology Group, Department of Animal Ecology and Systematics, Justus-Liebig-University of Giessen, Giessen, Germany;

    Institute of Experimental Ecology, University of Ulm, Ulm, Germany,Smithsonian Tropical Research Institute, Balboa, Panama;

    Institute of Experimental Ecology, University of Ulm, Ulm, Germany,Smithsonian Tropical Research Institute, Balboa, Panama;

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  • 正文语种 eng
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  • 关键词

    ecophysiology; compensation; energy-saving mechanisms; respirometry; energy demand;

    机译：生态生理学赔偿;节能机制;呼吸测定法能源需求;

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