Landscape heterogeneity and behavioral traits drive the evolution of lion group territoriality
Landscape heterogeneity and behavioral traits drive the evolution of lion group territoriality
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景观异质性和行为特征驱动狮群领地进化
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
C. Packer
中科院分区：
文献类型：
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作者：
Anna Mosser;M. Kosmala;C. Packer
群体领地性在多种物种中表现出来，并与合作和利他主义等复杂行为相关。目前关于从独居领土到群体领土进化转变的假设认为资源分散和人口密度是主要驱动因素。我们开发了一个基于非洲狮 (Panthera leo) 的空间明确、基于代理的模拟模型，以探索在一系列景观异质性和种群密度下群体领地的演变。我们还研究了在这些不同的景观中，群体领地性的 3 种潜在行为优势（合作防御、领地面积的增加和领地继承）如何影响这一特征的演变。模拟结果表明，群体领地性可能是一种新兴属性，它是由于景观结构、人口密度和行为的协同相互作用而演变的。在资源贫乏和资源丰富的异质景观中，社会个体更有可能占据主导地位，在这些景观中，个体表现出所有 3 种行为特征。类似的环境与行为相互作用可能塑造了广泛类群中从单独领地性到社会性的进化。
Group territoriality is exhibited in a diverse range of species and is associated with complex behaviors such as cooperation and altruism. Current hypotheses for the evolutionary transition from solitary to group territoriality consider resource dispersion and population density as the primary drivers. We developed a spatially explicit, agent-based simulation model based on African lions (Panthera leo) to explore the evolution of group territoriality across a range of landscape heterogeneities and population densities. We also examined, within these differing landscapes, how 3 potential behavioral advantages to group territoriality (cooperative defense, increase in territory size, and territorial inheritance) influence the evolution of this trait. Simulation results demonstrate that group territoriality may be an emergent property, which evolves due to synergistic interactions of landscape structure, population density, and behavior. Social individuals were significantly more likely to dominate in both resource-poor and resource-rich, heterogeneous landscapes where individuals exhibit all 3 behavioral traits. Similar environment–behavior interactions may have shaped the evolution of sociality from solitary territoriality across a broad range of taxa.