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Matrix Models of Hierarchical Demography : Linking Group- and Population-Level Dynamics in Cooperative Breeders [The American Naturalist]

Keywords : matrix models, population dynamics, hierarchical demography, social species, cooperative breeders, Allee effects.

par Frédéric Magné - publié le

For highly social species, population dynamics depend on hierarchical demography that links local processes, group dynamics, and population growth. Here, we describe a stage-structured matrix model of hierarchical demography, which provides a framework for understanding social influences on population change. Our approach accounts for dispersal and affords insight into population dynamics at multiple scales. The method has close parallels to integral projection models but focuses on a discrete characteristic (group size). Using detailed long-term records for meerkats (Suricata suricatta), we apply our model to explore patterns of local density dependence and implications of group size for group and population growth.(...)

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