Uncoupling the links between male mating tactics and female attractiveness
Proceedings. Biological sciences / The Royal Society
; 271(Suppl. 6): S427-S429, Dec. 2004. graf
Artigo
em Inglês
| MedCarib
| ID: med-17657
Biblioteca responsável:
TT5
Localização: TT5; QH1, R6
ABSTRACT
Because not all females are equally attractive, and because mating reduces the chances of getting further copulations, males should prefer better-quality mates. In this paper, we use the Trinidadian guppy (Poecilia reticulata) to explore the effects of two non-correlated measures of female quality--size and reproductive status--on male mating decisions. All male guppies employ two alternative mating tactics. We found that large females, particularly those from a high predation site, were the target of most sneaky mating attempts. The response persisted in fish raised under standard conditions over several generations in the laboratory. In addition, non-pregnant females received more courtship displays. We conclude that males can discriminate among females and that they uncouple their mating tactics to track different axes of quality.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
MedCarib
Assunto principal:
Reprodução
/
Poecilia
/
Análise de Variância
/
Observação
/
Rios
/
Tamanho Corporal
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
País/Região como assunto:
Caribe Inglês
/
Trinidad e Tobago
Idioma:
Inglês
Revista:
The Royal Society
Ano de publicação:
2004
Tipo de documento:
Artigo
Instituição/País de afiliação:
University of St. Andrews/United Kingdom