Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/1391
Título: Species differences in courtship acoustic signals among five Lake Malawi cichlid species (Pseudotropheus spp.)
Autor: Amorim, Maria Clara Pessoa
Simões, José Miguel
Fonseca, Paulo Jorge
Turner, George F.
Palavras-chave: Acoustic communication
Mate choice
P. zebra complex
Reproductive isolation
Sound production
Data: 2008
Editora: Blackwell Publishing
Citação: Journal of Fish Biology, 72, 1355-1368
Resumo: Male courtship acoustic signals from five Lake Malawi cichlid fish species of the Pseudotropheus zebra complex were recorded and compared. Sounds made by males of P. zebra, Pseudotropheus callainos and the undescribed species known as Pseudotropheus ‘zebra gold’ from Nkhata Bay, and Pseudotropheus emmiltos and Pseudotropheus faizilberi from Mphanga Rocks, differed significantly in the number of pulses and in pulse period. The largest differences in acoustic variables were found among the sympatric Mphanga Rocks species that, in contrast to the other three species, show relatively minor differences in male colour and pattern. These findings suggest that interspecific mate recognition is mediated by multimodal signals and that the mass of different sensory channels varies among sympatric species groups. This study also showed that sound peak frequency was significantly negatively correlated with male size and that sound production rate increased significantly with courtship rate.
Peer review: yes
URI: http://hdl.handle.net/10400.12/1391
ISSN: 0022-1112
Aparece nas colecções:UIE-E - Artigos em revistas internacionais

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