Shell dynamics and microhabitat selection by striped legged hermit crabs, Clibanarius vittatus (Bosc)

摘要: Abstract Hermit crabs respond to odors signaling potential shell availability by (1) withdrawing if they are in relatively large shells; (2) fleeing the shells ones would occupy given choices; (3) investigating occupied small. We used these behavioral responses as measures of fit assess resources Clibanarius vittatus (Bosc). From analysis we conclude dynamic. Behavioral tests suggest many spring and small fall. Crabs which remain when presented with excess never comprised more than 30% population at any time year. Behavior subpopulations from sand/mud oyster reef habitats on land or water low tide was determined. In fall, whose behavior indicated for their size were found mainly remained tide. suggested that well rare. The few equally distributed water. behaving evenly throughout both Distributional results could not be explained reduced mobility. Movement studies showed even weighted should trapped a receding postulate crab habitat choice is adjustment compensates imperfect fit.