Great tit responses to the calls of an unfamiliar species suggest conserved perception of call ordering.
Great tit responses to the calls of an unfamiliar species suggest conserved perception of call ordering.
复制标题
大山雀对陌生物种的叫声的反应表明它们对叫声顺序的感知是保守的。
DOI：
10.1007/s00265-020-2820-7
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发表时间：
2020
影响因子：
2.3
通讯作者：
Wheatcroft David
中科院分区：
文献类型：
--
作者：
Dutour Mylene;Suzuki Toshitaka N.;Wheatcroft David
许多鸟类在围攻捕食者时会发出不同的叫声。这些叫声通常会招募附近的同种和异种来帮助驱赶捕食者。在某些物种中，如Paridae家族的成员，骚扰叫声由多个元素组成，似乎遵循一个特征性的顺序。以往的工作表明，在parids注意到排序的影响同种和其他一些共同发生的Paridae物种的反应。跨物种对音符排序的敏感性可能是由于个体学习将个体异种呼叫与威胁相关联，或者更确切地说，因为典型的音符排序是跨物种共享的。在这里，我们测试这些假设，通过评估的反应，欧洲大山雀（山雀）的自然和人工有序的调用黑顶山雀（Poecile atricapillus），北美物种。在回应山雀自然有序的围攻呼叫时，我们发现大山雀表现出警惕性，并迅速接近声源，这些行为与那些在回应同种呼叫时表达的行为无法区分。如果习得的联想对于注意顺序的敏感性是必要的，那么一个关键的预测是，对自然顺序和人工逆转的山雀叫声的巨大乳头反应应该是相似的（并且较弱）。与这一预测相反，我们发现大山雀不那么警惕，但接近声源以回应人工逆转的山雀叫声。这些发现表明，注意顺序模式的看法是保守的。然而，他们也同意一个“感知偏差”的假设：呼叫的第一个音符掩盖了随后的音符，防止接收者感知呼叫的第二部分。虽然我们提供了反对感知偏差的证据，但还需要进一步的研究来令人信服地解开这两个假设。大山雀对山雀序列的反应取决于它们音符的顺序。大山雀和山雀在野外从未相遇，但它们的警报叫声序列有着相似的音符顺序。使用一系列的播放实验，我们证明，大山雀响应最强的山雀呼叫的顺序匹配自己的。因此，对不熟悉的呼叫的响应并不依赖于学习，而是跨物种的共享呼叫排序。
AbstractMany species of birds produce distinct calls when mobbing predators. These calls often recruit nearby conspecifics and heterospecifics to help drive the predators away. In some species, such as members of the family Paridae, mobbing calls are composed of multiple elements that seem to follow a characteristic order. Previous work in parids demonstrated that note ordering influences both the responses of conspecifics and some other co-occurring Paridae species. Cross-species sensitivity to note ordering could result from individuals’ learning to associate individual heterospecific calls with threats or, rather, because the typical note orderings are shared across species. Here, we test these hypotheses by assessing the responses of European great tits (Parus major) to the naturally and artificially ordered calls of black-capped chickadees (Poecile atricapillus), a North American species. In response to the naturally ordered mobbing calls of chickadees, we found that great tits exhibit vigilance and rapidly approach the sound source, behaviors that were indistinguishable to those expressed in response to conspecific calls. If learned associations are necessary for sensitivity to note ordering, then a key prediction is that great tit responses to naturally ordered and artificially reversed chickadee calls should be similar (and weak). In contrast to this prediction, we found that great tits were less vigilant, but approach the sound source in response to artificially reversed chickadee calls. These findings suggest that perception of note ordering patterns is conserved. However, they are also in agreement with a “perception bias” hypothesis: that the first notes of the call mask the notes that follow them, preventing the receiver from perceiving the second part of the call. Although we provide evidence against perception bias, further research is needed to convincingly disentangle these two hypotheses.Significance statementHow do animals decode other species’ vocal sequences? Great tit responses to chickadee sequences depend on the ordering of their notes. Great tits and chickadees never encounter one another in the wild, but their alarm call sequences have similar note orderings. Using a series of playback experiments, we demonstrate that great tits respond strongest to chickadee calls whose order matches their own. Thus, response to unfamiliar calls does not depend on learning, but, rather, shared call ordering across species.