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Emergence of individual behaviour at the population level. Effects of density-dependent migration on population dynamicsÉmergence du comportement individuel au niveau de la population. Effets des migrations densité-dépendentes sur la dynamique de la population

Pierre Auger - No affiliation found

2000/01/01 Full-length article DOI: 10.1016/S0764-4469(00)00105-0 Journal: Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie

Abstract:

AbstractThe aim of this work is to study the effects of different individual behaviours on the overall growth of a spatially distributed population. The population can grow on two spatial patches, a source and a sink, that are connected by migrations. Two time scales are involved in the dynamics, a fast one corresponding to migrations and a slow one associated with the local growth on each patch. Different scenarios of densitydependent migration are proposed and their effects on the population growth are investigated. A general discussion on the use of aggregation methods for the study of integration of different ecological levels is proposed.