Niche Overlap as a Function of Environmental Variability

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Niche overlap as a function of environmental variability.

The relationship between environmental variability and niche overlap is studied for a class of model biological communities in which several species compete on a one-dimensional continuum of resources, e.g., food size. In a strictly unvarying (deterministic) environment, there is in general no limit to the degree of overlap, short of complete congruence. However, in a fluctuating (stochastic) e...

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Does environmental variability limit niche overlap ? ( limiting similarity / invasion / stochastic competition models / random environments / stochastic approximations )

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This measure ranges between 0 no overlap and 1 complete overlap, so 0. We investigated the niche breadth and overlap of the fish species occurring in four environments affected by the Coaracy Nunes reservoir, in the Amapá.Individual foraging specialization: niche width versus niche overlap. Sargeant sargeantfiu.edu, Dept of Biology, Georgetown Univ.of these insects, and their trophic niche brea...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 1972

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.69.5.1109