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Interaction intimacy organizes networks of antagonistic interactions in different ways

机译:互动亲密关系以不同方式组织对抗性互动的网络

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摘要

Interaction intimacy, the degree of biological integration between interacting individuals, shapes the ecology and evolution of species interactions. A major question in ecology is whether interaction intimacy also shapes the way interactions are organized within communities. We combined analyses of network structure and food web models to test the role of interaction intimacy in determining patterns of antagonistic interactions, such as host–parasite, predator–prey and plant–herbivore interactions. Networks describing interactions with low intimacy were more connected, more nested and less modular than high-intimacy networks. Moreover, the performance of the models differed across networks with different levels of intimacy. All models reproduced well low-intimacy networks, whereas the more elaborate models were also capable of reproducing networks depicting interactions with higher levels of intimacy. Our results indicate the key role of interaction intimacy in organizing antagonisms, suggesting that greater interaction intimacy might be associated with greater complexity in the assembly rules shaping ecological networks.
机译:相互作用的亲密性,即相互作用个体之间的生物整合程度,决定了物种相互作用的生态和演化。生态学中的一个主要问题是互动亲密性是否还会影响社区内部互动的组织方式。我们将网络结构和食物网模型的分析结合起来,以测试互动关系在确定敌对互动模式(例如宿主-寄生虫,捕食者-猎物和植物-草食动物的互动)中的作用。与高亲密性网络相比,描述低亲密性的交互的网络更加紧密,嵌套且模块化程度较低。此外,模型的性能在具有不同亲密度级别的网络中也有所不同。所有模型都很好地复制了低亲密关系网络,而更精细的模型也能够复制描绘具有较高亲密关系的互动的网络。我们的结果表明相互作用亲密性在组织拮抗作用中的关键作用,表明更大的相互作用亲密性可能与形成生态网络的装配规则中的更大复杂性有关。

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