Conditions for kin selection to bring cooperation and improve population growth: A response to Iritani
Conditions for kin selection to bring cooperation and improve population growth: A response to Iritani
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亲缘选择带来合作和促进人口增长的条件：对 Iritani 的回应
DOI：
10.1111/1365-2745.13281
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发表时间：
2019
影响因子：
5.5
通讯作者：
Kobayashi Kazuya
中科院分区：
文献类型：
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作者：
Kobayashi Kazuya
为了阐明种内施肥竞争如何影响植物的种群增长率和群落动态，小林（生态学杂志，2019）提出了基于博弈论的分析和模拟模型。在这个框架内，它表明，由性选择产生的负密度依赖效应是维持生物多样性的重要力量。放松分析模型中的某些假设，Iritani（生态学杂志，2019）成功地将亲属选择的影响纳入模型中。这一变化对提高模型的通用性做出了重大贡献。在此，我澄清了Iritani的贡献（Journal of Ecology，2019），并解释了亲属选择促进合作进化（促进性）的条件。亲属选择在一定条件下有可能促进合作进化。然而，在高密度的环境中，个体必须与许多其他同种相互作用，很难保持合作特性。因此，即使在Iritani扩展了该模型之后，它也不能用来说明种内竞争对受精的负密度依赖效应不存在，但它成功地揭示了自然界中的情况更为复杂。亲属选择存在于个体之间发生种内相互作用的地方，但不一定导致合作的进化。需要更详细的理论和实证研究，以确定是否性选择一般产生负密度依赖，即使亲属选择考虑在内。
To clarify how intraspecific competition over fertilization affects population growth rates and community dynamics in plants, Kobayashi (Journal of Ecology, 2019) proposed analytical and simulation models based on the game theory. Within this framework, it is suggested that the negative density‐dependent effect arising from sexual selection is an important force for sustaining biodiversity. Relaxing certain assumptions made in the analytical model, Iritani (Journal of Ecology, 2019) successfully incorporated the effect of kin selection in the model. This change makes a significant contribution towards improving the generality of the model.Here, I clarify the contribution of Iritani (Journal of Ecology, 2019) and explain the condition under which kin selection promotes the evolution of cooperation (facilitativeness).Kin selection has the potential to promote the evolution of cooperation under certain conditions. However, it is difficult to maintain cooperative traits in high‐density environments where individuals must interact with many other conspecifics. Thus, even after the model was extended by Iritani, it cannot be used to state that the negative density‐dependent effect arising from intraspecific competition over fertilization does not exist, but it has successfully revealed that the situation is more complex in nature.Synthesis. Kin selection exists wherever intraspecific interactions between individuals occur, but does not necessarily lead to the evolution of cooperation. More detailed theoretical and empirical studies are needed to determine whether sexual selection generally produces negative density dependence, even when kin selection is taken into account.