Begging calls provide social cues for prospecting conspecifics in the wild Zebra Finch (Taeniopygia guttata)
Begging calls provide social cues for prospecting conspecifics in the wild Zebra Finch (Taeniopygia guttata)
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DOI：
10.1093/auk/ukz007
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发表时间：
2019-04-01
期刊：
影响因子：
2.8
通讯作者：
Schuett, Wiebke
中科院分区：
文献类型：
--
作者：
Brandl, Hanja B.;Griffith, Simon C.;Schuett, Wiebke
社会信息可以快速传播，帮助动物适应波动的环境。在他人的繁殖地进行勘探是一种普遍的行为，可以帮助最大限度地繁殖，例如，与其他成功的繁殖者定居在同一地区。以前的研究表明，成功的育雏有最多的探矿者，当筑巢地点的后代已经老了时，他们被访问的次数最多，这使得信息更加可靠。在这项实地研究中，我们实验测试了探矿者是如何被吸引到成功的巢址。我们提出了野生斑胸草雀（Taeniopygia guttata）与不同的视觉或听觉线索的巢箱，模拟存在的小或大的离合器或育雏。更多的斑胸草雀访问实验巢，与乞讨呼叫的大窝（7小鸡），而不是乞讨呼叫的小窝（3小鸡）和控制（白色噪音和沉默）的回放录音。另一方面，视觉线索（巢与不同数量的鸡蛋或岩石），代表巢在早期阶段，没有影响访问的概率，也没有访问的数量或持续时间。我们提出的第一个证据表明，乞讨呼吁巢中的小鸡，一个信号，用于亲属沟通，也可以提供社会信息无关的勘探同种。这些信息可能用于快速初步评估育种地点的质量。
Social information can spread fast and help animals adapt in fluctuating environments. Prospecting on the breeding sites of others, a widespread behavior, can help to maximize reproduction by, for instance, settling in the same area as other successful breeders. Previous studies have shown that successful broods have the highest number of prospectors and that they are visited most when offspring in nesting sites are already old, making the information more reliable. In this field study, we experimentally tested how prospectors are attracted to successful nest sites. We presented wild Zebra Finches (Taeniopygia guttata) with different visual or acoustic cues in nest boxes, simulating the presence of small or large clutches or broods. More Zebra Finches visited experimental nests that were associated with playback recordings of begging calls of large broods (7 chicks) as opposed to begging calls of small broods (3 chicks) and controls (white noise and silence). On the other hand, visual cues (nests with different numbers of eggs or rocks), representing nests at early stages, did not influence either the probability of visits, nor number or duration of visits. We present the first evidence that begging calls of chicks in the nest, a signal intended for kin communication, can also provide social information to unrelated prospecting conspecifics. This information could potentially be used for a fast initial assessment of the quality of a breeding site.