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Evolutionary Ecology of Social and Sexual SystemsCrustaceans as Model Organisms$
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J. Emmett Duffy and Martin Thiel

Print publication date: 2007

Print ISBN-13: 9780195179927

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780195179927.001.0001

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Behavioral Ecology of Semiterrestrial Crayfish

Behavioral Ecology of Semiterrestrial Crayfish

Chapter:
(p.319) 15 Behavioral Ecology of Semiterrestrial Crayfish
Source:
Evolutionary Ecology of Social and Sexual Systems
Author(s):

Alastair M.M. Richardson

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195179927.003.0015

Like a number of the other crustaceans, burrowing crayfish live in a situation that tends to lead to prolonged associations between mother and offspring, and even overlapping generations in some species. Under these situations, social behaviors are likely to evolve, but at this stage the only ones that have been identified among burrowing crayfish are between mother and offspring, in terms of defense and grooming. Burrowing was a pre-adaptation that has allowed crayfish to move out of open waters onto land, but it has also imposed severe restrictions on their movements and dispersal. The development of social behaviors may compensate for these restrictions to some extent. Present knowledge on the behavioral ecology of semi-terrestrial crayfish is scarce, but initial observations suggest that future studies on the reproductive biology of burrowing crayfish may improve our understanding of social evolution in crustaceans.

Keywords:   terrestrial burrows, extended parental care, overlapping generations, dispersal, cohabitation

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