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Status signalling and the ability to recognize dominants: an experiment with siskins (Carduelis spinus)

机译:状态信号和识别优势的能力:siskins(Carduelis spinus)的实验

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摘要

Because dominants usually exploit others and take a disproportionate share of the available resources, we should expect foragers to be choosy as to which individuals they join. Here we show that siskins (Carduelis spinus) discriminate between dominant and subordinate individuals on the first encounter without requiring cues such as overt aggression, and prefer to join subordinate individuals. Experimental enlargement or removal of the siskin black bib, which has been shown previously to be a reliable predictor of dominance, strongly suggests that dominance discrimination is based on the use of badges of status. [References: 41]
机译:由于支配者通常会剥削他人,并在可用资源中占有不成比例的份额,因此,我们应该期望觅食者对他们加入的对象选择不多。在这里,我们显示siskins(Carduelis spinus)在初次见面时就可以区分显性个体和下属个体,而无需诸如公开侵略之类的提示,并且喜欢加入下属个体。 siskin黑色围嘴的实验性扩大或移除(先前已证明是主导地位的可靠预测因素)强烈暗示,主导地位歧视是基于地位徽章的使用。 [参考:41]

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