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dc.creatorGarita Alvarado, Carlos A.
dc.creatorNaranjo Elizondo, Beatriz
dc.creatorBarrantes Montero, Gilbert
dc.description.abstractDespite the increasing interest in the use of intro-mittent male genitalia and coercive mating behaviour in poeciliids, detailed studies of the mating behaviour of most species in this family are lacking. We describe here the mating and aggressive behaviours of Brachyrhaphis olomina, and correlate them with the condition of the female’s ovum and embryos (immature, mature and pregnant). B. olomina performed a wide range of aggressive (sidle spread, tail beating, coordinate) and mating behaviours (approximation, touch, lateral display, touch-lateral display). Some behaviours (e.g. tail beating) are shared with other poeciliids, but two sexual behaviours (touch and lateral display) and one aggressive (coordinate) behaviour may be unique to B. olomina and were not reported in a previous study. Differences in male behaviour when paired with a female with mature ovum (more mating displays, no agonistic movements) suggest that males detect the female’s reproductive condition from some distance. The distinctive nature of mating behaviour in B. olomina highlights the importance of studying different spe-cies to have a better understanding of the evolution of mating and aggressive behaviours in poeciliids. Digital video images related to the article are available at, and
dc.sourceJournal of Ethology 36(1):1-13
dc.subjectBehaviour descriptionen
dc.subjectBrachyrhaphis Courtshipen
dc.subjectColour changesen
dc.subjectMature ovumen
dc.subjectPregnant femaleen
dc.titleMating and aggressive behaviour of Brachyrhaphis olomina (Cyprinodontiformes: Poeciliidae)en
dc.typeArtículo científico
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biología

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