ESS analysis of mechanistic models for territoriality: the value of scent marks in spatial resource partitioning.
In this paper elements of game theory are used to analyse a spatially explicit home range model for interacting wolf packs. The model consists of a system of nonlinear partial differential equations whose parameters reflect the movement behavior of individuals within each pack and whose solutions describe the patterns of space-use by each pack. By modifying the behavioral parameters, packs adjust their patterns of movement so as to maximize their reproductive output. This involves a tradeoff between maximizing prey intake and minimizing conflict with neighbors. Evolutionarily stable choices of the behavioral parameters yields territories that are immune to invasion by groups with alternate behaviors.
Lewis
M A
MA
Department of Mathematics, University of Utah, 155 S 1400 E JWB 233, Salt Lake City, UT 84112, USA. mlewis@math.utah.edu
Moorcroft
P
P
D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D005716:Game Theory; D009068:Movement; D019596:Wolves