A test of multiple hypotheses for the function of call sharing in female budgerigars, Melopsittacus undulatus.
A test of multiple hypotheses for the function of call sharing in female budgerigars, Melopsittacus undulatus.
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DOI：
10.1007/s00265-013-1631-5
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发表时间：
2014-01-01
影响因子：
2.3
通讯作者：
Wright TF
中科院分区：
文献类型：
--
作者：
Dahlin CR;Young AM;Cordier B;Mundry R;Wright TF
在许多社会性物种群体中，成员共享声音相似的呼叫。功能假说已被提出呼叫共享，但以前的研究一直受到限制，无法区分这些假设。我们研究的功能，在女性虎皮鹦鹉的声音共享两部分的实验设计，使我们能够区分两个功能的假设。社会关联假说认为，共享的声音帮助动物调解亲和和攻击性的互动，而密码假说认为，共享的声音允许动物区分群体身份，排除非成员。我们还测试了标签假说，一个机械的解释，提出共享的电话是用来解决特定的个人在发送者-接收者关系。我们测试了社会协会的假设，创造了四个成员的群不熟悉的雌性虎皮鹦鹉（Melopsittacus undulatus），然后通过粪便糖皮质激素代谢产物监测鸟类的呼叫，社会行为和压力水平。我们通过将移民转移到既定的社会群体中来验证密码假说。为了检验标签假设，我们进行了额外的录音，其中个人与不同的小组成员配对。社会协会的假设支持的发展，在每个笼子里的多个共享的呼叫类型和共享的呼叫类型的数量和对鸟类之间的侵略性的相互作用的数量之间的相关性。我们还发现支持调用作为一个标签机制，使用判别函数分析与置换过程。我们的研究结果不支持密码假说，因为移民和对照鸟类之间的压力或定向行为没有差异。
In many social species group, members share acoustically similar calls. Functional hypotheses have been proposed for call sharing, but previous studies have been limited by an inability to distinguish among these hypotheses. We examined the function of vocal sharing in female budgerigars with a two-part experimental design that allowed us to distinguish between two functional hypotheses. The social association hypothesis proposes that shared calls help animals mediate affiliative and aggressive interactions, while the password hypothesis proposes that shared calls allow animals to distinguish group identity and exclude nonmembers. We also tested the labeling hypothesis, a mechanistic explanation which proposes that shared calls are used to address specific individuals within the sender–receiver relationship. We tested the social association hypothesis by creating four–member flocks of unfamiliar female budgerigars (Melopsittacus undulatus) and then monitoring the birds’ calls, social behaviors, and stress levels via fecal glucocorticoid metabolites. We tested the password hypothesis by moving immigrants into established social groups. To test the labeling hypothesis, we conducted additional recording sessions in which individuals were paired with different group members. The social association hypothesis was supported by the development of multiple shared call types in each cage and a correlation between the number of shared call types and the number of aggressive interactions between pairs of birds. We also found support for calls serving as a labeling mechanism using discriminant function analysis with a permutation procedure. Our results did not support the password hypothesis, as there was no difference in stress or directed behaviors between immigrant and control birds.
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DOI：
10.1098/rspb.2011.0932
发表时间：
2012-02-07
影响因子：
4.7
作者：
Berg, Karl S.;Delgado, Soraya;Bradbury, Jack W.
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
2.3
作者：
Boughman, JW
通讯作者：
Boughman, JW
影响因子：
2.5
作者：
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Ekman, J