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The interaction between predator strategy and prey competition in a pair of multi-predator multi-prey lattices

机译:一对多捕食者多猎物格子中捕食者策略与猎物竞争之间的相互作用

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A computational study of a system of ten prey phenotypes and either one or ten predator phenotypes with a range of foraging behaviours, arranged on two separate one-dimensional lattices, is presented. Mutation between nearest neighbours along the prey lattice occurs at a constant rate, and mutation may or may not be enabled for the predators. The significance of competition amongst the prey is investigated by testing a variety of distributions of the relative intraspecific and interspecific competition. We also study the influence this has on the survival and population size of predator phenotypes with a variety of foraging strategies. Our results indicate that the distribution of competition amongst prey is of little significance, provided that intraspecific is stronger than the interspecific, and that it is typically preferable for a predator to adopt a foraging strategy that scales linearly with prey population sizes if it is alone. In an environment of multiple predator phenotypes, the least or most-focused predators are most likely to persist, dependent on the feeding parameter. (C) 2017 Elsevier B.V. All rights reserved.
机译:提出了一个系统的计算研究,该系统由十个捕食表型和一个或十个具有一系列觅食行为的捕食者表型组成,该系统布置在两个单独的一维晶格上。沿着猎物晶格的最近邻居之间的变异以恒定的速率发生,并且掠食者可能启用或可能不启用变异。通过测试种内和种间相对竞争的各种分布,研究了猎物之间竞争的重要性。我们还研究了各种觅食策略对捕食者表型生存和种群规模的影响。我们的结果表明,只要种内比种间强,猎物之间的竞争分布就没有什么意义了,如果单独使用捕食者,捕食者通常优选采用与猎物种群大小成线性比例的觅食策略。在具有多个捕食者表型的环境中,最不集中或最集中的捕食者最有可能持续存在,这取决于饲养参数。 (C)2017 Elsevier B.V.保留所有权利。

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