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Walking SidewaysThe Remarkable World of Crabs$
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Judith S. Weis

Print publication date: 2012

Print ISBN-13: 9780801450501

Published to Cornell Scholarship Online: August 2016

DOI: 10.7591/cornell/9780801450501.001.0001

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(p.105) Chapter Six Ecology
Walking Sideways

Judith S. Weis

Cornell University Press

This chapter is an overview of crab ecology—beginning with the transition from larva to juvenile, and covering hibernation, migrations, navigation, interactions with other kinds of organisms, and the effects of crabs on the environment. As crabs reside in a large variety of habitats, their ecologies have become as equally diverse, thus this chapter seeks to examine these aspects of crab ecology in particular. The chapter also devotes a section on the unique habits of hermit crabs in their shells. These shells serve various functions. For terrestrial hermits, these include water storage: the crabs can carry water in their snail shell, which enables them to colonize relatively dry areas. All hermit crabs depend on a properly fitting shell for protection from predators.

Keywords:   crab ecology, crab larvae, hibernation, migrations, navigations, hermit crabs

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