The role of calceoli in mate assessment and precopula guarding in Gammarus
Article Abstract:
The mating behavior of two male Gammarus species with and without calceoli was investigated to determine the role of calceoli in mate evaluation and pecopula pairing. The pattern of size-assortative mating and number of contacts were found to be unaffected by the removal of calceoli. Males without calceoli were found to reduce their assessment of potential mates and guarding of a suitable female. The results suggest that calceoli are used to determine the intermolt period of a female.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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Size and pairing success in Gammarus duebeni: can females be too big?
Article Abstract:
Loading constraints play a role in structuring size-assortative pairing in the crustacean Gammarus duebeni. There are no indications of size-related female resistance in structuring the pattern of pairing. Larger females suffer decreased pairing success, a factor which may lead to parasitic sex-ratio distortion. There is evidence for a relationship between size and fitness for the evolution of environmental sex determination in this species.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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Mate choice and mate guarding under the influence of a vertically transmitted, parasitic sex ratio disorder
Article Abstract:
Research is presented concerning the influence of a feminizing and vertically transmitted parasite on the precopula guarding and mate choice behavior of the crustacean Gammarus duebeni.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2001
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