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首页> 外文期刊>Royal Society Open Science >Repeatability in the contact calling system of Spix9s disc-winged bat (Thyroptera tricolor)
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Repeatability in the contact calling system of Spix9s disc-winged bat (Thyroptera tricolor)

机译：Spix9s盘翅蝙蝠（ Thyroptera tricolor ）的接触呼叫系统中的可重复性

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Spix's disc-winged bat ( Thyroptera tricolor ) forms cohesive groups despite using an extremely ephemeral roost, partly due to the use of two acoustic signals that help individuals locate roost sites and group members. While the calls that aid in group cohesion are commonly used, some bats rarely or never produce them. Here, we examine whether the differences observed in the contact calling behaviour of T. tricolor are repeatable; that is, whether individual differences are consistent. We recorded contact calls of individuals in the field and rates and patterns of vocalization. To determine whether measured variables were consistent within individuals, we estimated repeatability ( R ), which compares within-individual to among-individual variance in behavioural traits. Our results show that repeatability for call variables was moderate but significant, and that repeatability was highest for the average number of calls produced ( R =0.46–0.49). Our results demonstrate important individual differences in the contact calling behaviour of T. tricolor ; we discuss how these could be the result of mechanisms such as frequency-dependent selection that favour groups composed of individuals with diverse vocal strategies. Future work should address whether changes in social environment, specifically group membership and social status, affect vocal behaviour.
机译：尽管使用了极为短暂的栖息地，Spix的盘翅蝙蝠（三翅目Thyroptera tricolor）仍形成了紧密的群体，部分原因是使用了两个可帮助个人定位栖息地和群体成员的声音信号。虽然通常使用有助于群体凝聚力的呼声，但有些蝙蝠很少或根本不会产生它们。在这里，我们检查在三色T.的接触呼叫行为中观察到的差异是否可重复;也就是说，个体差异是否一致。我们记录了该领域中个人的联系电话以及发声的速度和方式。为了确定所测变量在个体内是否一致，我们估计了重复性（R），它比较了行为特征的个体内差异和个体间差异。我们的结果表明，呼叫变量的可重复性是中等但重要的，并且对于所产生的平均呼叫次数，可重复性最高（R = 0.46-0.49）。我们的结果表明，在三色T.的接触呼叫行为上存在重要的个人差异;我们讨论了这些可能是机制的结果，例如依赖于频率的选择，这些选择偏向由具有不同发声策略的个人组成的群体。未来的工作应解决社会环境的变化，特别是群体成员和社会地位的变化，是否会影响声音的行为。

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