Idioma:

Scramble Competition Selects for Greater Tailfin Size in Male Red-Spotted Newts (Amphibia: Salamandridae)

Able, David J.

Behavioral ecology and sociobiology, 1999-11, Vol.46 (6), p.423-428 [Periódico revisado por pares]

Heidelberg: Springer-Verlag

Texto completo disponível

Citações Citado por

Enviar para

Título:
Scramble Competition Selects for Greater Tailfin Size in Male Red-Spotted Newts (Amphibia: Salamandridae)
Autor: Able, David J.
Assuntos: Amphibia and reptilia ; Animal ethology ; Biological and medical sciences ; Breeding seasons ; Female animals ; Fundamental and applied biological sciences. Psychology ; Insemination ; Male animals ; Mating behavior ; Newts ; Notophthalmus viridescens ; Ponds ; Psychology. Psychoanalysis. Psychiatry ; Reproductive success ; Sexual dimorphism ; Sexual selection ; Vertebrata
É parte de: Behavioral ecology and sociobiology, 1999-11, Vol.46 (6), p.423-428
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: Darwin predicted that scramble competition for access to reproductive females would result in sexual dimorphism of locomotory structures, but direct evidence for this is extremely rare. I examined the relationship between variation in tailfin size and mating success in a field and laboratory study of red-spotted newts, Notophthalmus viridescens. Over three breeding seasons, male tailfin size was positively correlated with variation in male amplexus frequency, and indirectly correlated with male insemination frequency. In a laboratory study, I confirmed that males' ability to capture females is affected by variation in tailfin size. This is the first study to show that naturally occurring variation in male locomotory structures affects male mating success. It corroborates the prediction that scramble competition leads to sexual selection on locomotory structures and, potentially, to dimorphism in these structures.
Editor: Heidelberg: Springer-Verlag
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Scramble Competition Selects for Greater Tailfin Size in Male Red-Spotted Newts (Amphibia: Salamandridae)

Able, David J.

Heidelberg: Springer-Verlag

Buscando em bases de dados remotas. Favor aguardar.