Evolution of foraging strategies on resource gradients



: Heino M, Parvinen K, Dieckmann U

Publisher: EVOLUTIONARY ECOLOGY LTD

: 2008

: Evolutionary Ecology Research

: EVOLUTIONARY ECOLOGY RESEARCH

: EVOL ECOL RES

: 10

: 8

: 1131

: 1156

: 26

: 1522-0613


Results: (1) When expressed its instantaneous rates with the same units (time(-1)), mortality risks (d), foraging costs (c), and resource qualities (q) all influence the evolutionarily stable distribution of foraging effort through the dimensionless expression (d + c)/q. (2) Functional responses that imply intake saturation may result in a subset of resources remaining entirely unused. (3) Coupling foraging to resource dynamics results in a rich array of evolutionary outcomes, depending on the type of competition among foragers and the interplay between forager and resource characteristics. (4) Genetic constraints may cause foraging effort to track the resource gradient more coarsely than classical models predict.



Last updated on 2024-26-11 at 18:38