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首页> 外文期刊>Behavioral Ecology and Sociobiology >Social foraging and dominance relationships: the effects of socially mediated interference
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Social foraging and dominance relationships: the effects of socially mediated interference

机译：社会觅食和优势关系：社会媒介干预的影响

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In socially foraging animals, it is widely acknowledged that the position of an individual within the dominance hierarchy of the group has a large effect upon its foraging behaviour and energetic intake, where the intake of subordinates can be reduced through socially mediated interference. In this paper, we explore the effects of interference upon group dynamics and individual behaviour, using a spatially explicit individual-based model. Each individual follows a simple behavioural rule based upon its energetic reserves and the actions of its neighbours (where the rule is derived from game theory models). We show that dominant individuals should have larger energetic reserves than their subordinates, and the size of this difference increases when either food is scarce, the intensity of interference suffered by the subordinates increases, or the distance over which dominant individuals affect subordinates increases. Unlike previous models, the results presented in this paper about differences in reserves are not based upon prior assumptions of the effects of social hierarchy and energetic reserves upon predation risk, and emerge through nothing more than a reduction in energetic intake by the subordinates when dominants are present. Furthermore, we show that increasing interference intensity, food availability or the distance over which dominants have an effect also causes the difference in movement between ranks to increase (where subordinates move more than dominants), and the distance over which dominants have an effect changes the size of the groups that the different ranks are found in. These results are discussed in relation to previous studies of intra- and interspecific dominance hierarchies.
机译：在社交觅食的动物中，众所周知的是，个体在该群体的支配地位中的地位对其觅食行为和精力充沛的摄入有很大影响，在这种情况下，下属的摄入可以通过社交介导的干预来减少。在本文中，我们使用空间上明确的基于个体的模型来探索干扰对群体动力学和个体行为的影响。每个人都基于其能量储备和邻居的行为遵循简单的行为规则（该规则源自博弈论模型）。我们表明，优势个人应比下属拥有更大的精力储备，并且当食物不足，下属遭受的干扰强度增加或优势个人影响下属的距离增加时，这种差异的大小会增加。与以前的模型不同，本文介绍的关于储备金差异的结果并非基于先前对社会等级和精力充沛的储备对掠夺风险的影响的假设，而是通过降低下属在精力充沛时的精力摄入而得出的。当下。此外，我们表明，干扰强度，食物供应量或主导权作用距离的增加也会导致等级之间的运动差异增加（下属移动超过主导权），并且主导权作用的距离会改变可以找到不同等级的群体的规模。这些结果将与以前关于种内和种间优势等级的研究进行讨论。

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