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ideal free distribution, wild fish population, wild fish habitats


Ideal free distribution (IFD) is a density-dependent model for habitat selection that predicts the distribution of mobile foragers in spatially heterogeneous (patchy) environments. The conventional IFD model assumes perfect knowledge, free transportation, and no interspecific interactions between populations of mobile foragers that distribute themselves throughout a patchy environment to maximize fitness. Habitat selection by a variety of different organisms has been observed with ideal free theory, including breeding birds, amphibians, and flying insects. The purpose of this review was to examine ideal free habitat selection in wild fish populations.


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