Resource Defense Polygyny by Hetaerina rosea Selys (Odonata: Calopterygidae): Influence of Age and Wing Pigmentation
Neotrop. entomol
;
40(1): 78-84, Jan.-Feb. 2011. ilus, graf, tab
Artigo
em Inglês
| LILACS
| ID: lil-578837
ABSTRACT
Current evidence suggests that in Hetaerina damselflies males exhibit lek mating system. In this study, in order to answer if the same occurs in Hetaerina rosea Selys, we manipulated vegetation substrates used as territories and quantified the number of visiting females, males defending territories and fight intensity. We also examined whether body size and wing pigmentation are selectable traits in male-male competition, and if age affects male territorial behavior. Our results showed that males with larger pigmented areas won more contests, independently of body size. Old males changed from territoriality to sneaking strategy. Contrary to other Hetaerina species, males of H. rosea do not display lek behavior, but defend resources according to the resource defense polygyny strategy.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Asas de Animais
/
Comportamento Animal
/
Insetos
Limite:
Animais
Idioma:
Inglês
Revista:
Neotrop. entomol
Assunto da revista:
Biologia
/
ZOOLOGIA
Ano de publicação:
2011
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
USP/BR
/
Univ Federal de Uberlândia/BR
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