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首页> 外文期刊>Proceedings of the Royal Society. Biological sciences >Adiposity signals predict vocal effort in Alston's singing mice
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Adiposity signals predict vocal effort in Alston's singing mice

机译：肥胖信号在阿尔斯顿的歌唱小鼠中预测声乐努力

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摘要

Advertisement displays often seem extravagant and expensive, and are thought to depend on the body condition of a signaller. Nevertheless, we know little about how signallers adjust effort based on condition, and few studies find a strong relationship between natural variation in condition and display. To examine the relationship between body condition and signal elaboration more fully, we characterized physiological condition and acoustic displays in a wild rodent with elaborate vocalizations, Alston's singing mouse, Scotinomys teguina. We found two major axes of variation in condition-one defined by short-term fluctuations in caloric nutrients, and a second by longer-term variation in adiposity. Among acoustic parameters, song effort was characterized by high rates of display and longer songs. Song effort was highly correlated with measures of adiposity. We found that leptin was a particularly strong predictor of display effort. Leptin is known to influence investment in other costly traits, such as immune function and reproduction. Plasma hormone levels convey somatic state to a variety of tissues, and may govern trait investment across vertebrates. Such measures offer new insights into how animals translate body condition into behavioural and life-history decisions.
机译：广告显示通常似乎奢侈和昂贵，并被认为取决于签名者的身体状况。尽管如此，我们几乎不了解信号师如何根据条件调整努力，并且很少有研究发现条件和显示的自然变化之间的强大关系。为了更全面地检查身体状况和信号萌发之间的关系，我们在野生啮齿动物中表征生理病情和声学显示器，具有精细的声音，Alston的歌唱小鼠Scotinomys Teguina。我们发现条件下的两个主要变化轴 - 一种通过热量营养成分的短期波动定义，以及肥胖的长期变化。在声学参数中，歌曲努力的特点是显示和更长的歌曲率高。歌曲努力与肥胖措施高度相关。我们发现瘦素是显示努力的特别强劲的预测因素。众所周知，瘦素会影响其他昂贵的特征的投资，例如免疫功能和繁殖。血浆激素水平将躯体状态传达到各种组织，并可以控制脊椎动物的特质投资。这些措施为动物转化为行为和生活历史决策的新洞察力提供了新的见解。

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