Dominance hierarchies and associated signalling in a cooperative passerine
Dominance hierarchies and associated signalling in a cooperative passerine
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合作雀形目动物中的优势等级和相关信号
DOI：
10.1007/s00265-014-1856-y
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发表时间：
2014
影响因子：
2.3
通讯作者：
Rat M
中科院分区：
文献类型：
--
作者：
Rat M
在动物社会中，个体面临着合作还是竞争共享资源的困境。两个相互交织的机制可能有助于解决这一持久的进化困境，防止冲突，从而调解生活在群体中的成本：建立统治等级制度和使用“身份徽章”的信号统治。我们调查了这两种机制的社会性织布（Philetairus socius），殖民地和社会雀合作，在多个任务。我们研究了社会性织布工的优势结构，在2年内记录2563激动相互作用的152个个体之间观察到的饲养在8个殖民地。我们测试了哪些个体特征，包括性别、年龄、亲缘关系和两种基于黑色素的羽毛特征，可以预测社会地位的变化。首先，使用社会网络分析，我们发现殖民地是由强有序的层次结构，这些层次结构在几年之间是稳定的。第二，中等排名的鸟类从事更具侵略性的相互作用比高排名的个人，这表明对食物的竞争是最明显的中间社会地位的鸟类。第三，我们发现，殖民地的大小和亲属关系的影响竞争的相互作用，所以侵略是不太明显的较小的殖民地和亲属之间。最后，内和个体之间的社会地位的变化和存在的一个人在馈线与围兜大小的变化，如身份证的假设预测。这些结果表明，统治阶层和围兜的大小调解冲突，在社会性的织工社会。
In animal societies, individuals face the dilemma of whether to cooperate or to compete over a shared resource. Two intertwined mechanisms may help to resolve this enduring evolutionary dilemma by preventing conflicts and thereby mediating the costs of living in groups: the establishment of dominance hierarchies and the use of ‘badge-of-status’ for signalling dominance. We investigated these two mechanisms in the sociable weaver (Philetairus socius), a colonial and social passerine which cooperates over multiple tasks. We examined the sociable weavers’ dominance structure in 2 years by recording 2563 agonistic interactions between 152 individuals observed at a feeder at eight colonies. We tested which individual traits, including sex, age, relatedness and two melanin-based plumage traits, predicted variation in social status. First, using social network analysis, we found that colonies were structured by strongly ordered hierarchies which were stable between years. Second, medium-ranked birds engaged more in aggressive interactions than highly ranking individuals, suggesting that competition over food is most pronounced among birds of intermediate social status. Third, we found that colony size and kinship influenced agonistic interactions, so aggression was less pronounced in smaller colonies and among relatives. Finally, within- and between-individual variation in social status and the presence of an individual at the feeder were associated with variation in bib size, as predicted by the badge-of-status hypothesis. These results suggest that dominance hierarchies and bib size mediate conflicts in sociable weaver societies.
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影响因子：
64.8
作者：
Wolf, Max;van Doorn, G. Sander;Weissing, Franz J.
通讯作者：
Weissing, Franz J.
善于交际的编织者，第 5 部分：食物、喂养和一般行为
DOI：
--
发表时间：
1973
期刊：
影响因子：
--
作者：
G. Maclean
通讯作者：
G. Maclean
影响因子：
2.9
作者：
Cant, Michael A.;Llop, Justine B.;Field, Jeremy
通讯作者：
Field, Jeremy
哈里斯麻雀的状态信号：一些欺骗实验
影响因子：
1.3
作者：
S. Rohwer
通讯作者：
S. Rohwer
DOI：
10.1098/rspb.2000.1000
发表时间：
2000-02-07
影响因子：
4.7
作者：
Clutton-Brock, TH;Brotherton, PNM;McIlrath, GM
通讯作者：
McIlrath, GM