Male disturbance, repeated insemination and sperm competition in the damselfly Coenagrion scitulum (Zygoptera: Coenagrionidae)
Article Abstract:
A study of the mating behaviour of damselflies showed that fertilization success was determined by male disturbance, repeated insemination and sperm competition. Males were observed to translocate sperms from the testes to the penis several times before successfully mating with the females. Observations in virgin damselflies which were inseminated several times showed low fertlization rates. This suggests that fertilization was determined by the males' copulation ability and not by the volume of sperms produced during insemination.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Maintenance of a female-limited polymorphism in Ischnura ramburi (Zygoptera: Coenagrionidae)
Article Abstract:
The female-limited color polymorphism in the Rambur's forktail damselfly, Ischnura ramburi, in which one female morph looks like a male is studied. The results show that the relative fitness of the two morphs changes with mating frequency.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2003
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Costs of sexual interactions to females in Rambur's forktail damselfly, Ischnura ramburi, (Zygoptera: Coenagrionidae)
Article Abstract:
Research is presented concerning the avoidance of costly sexual interactions by females of the Rambur's forktail damselfly who look and behave like males. The influence of sexual conflict on polymorphism is discussed.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2001
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