Sexual differences in life history and resource utilization by the hermit crab.

From: Ecology | Date: October 1, 1995| Author: | Copyright information

Evolutionary causes and ecological consequences of sexual differences in hermit crabs were examined through their life history patterns, habitats, behavioral responses to seasonal and size differences in the utilization of vacant shell resources and intraspecific competitive ability. The sand-dwelling hermit crab, Diogenes nitidimanus, and the sand snail, Umbonium moniliferum, were extremely abundant in the study area, comprising a virtually single resource and utilizer system. Size-frequency distributions of the crabs were nearly flat for males but had a prominent peak for larger females, ...

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