Species divergence and seasonal succession in rates of mate desertion in closely related Neotropical cichlid fishes

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Lehtonen TK, Wong BBM, Lindström K, Meyer A
Publisher: SPRINGER
Publication year: 2011
Journal: Behavioral Ecology and Sociobiology
Journal acronym: BEHAV ECOL SOCIOBIOL
Volume number: 65
Issue number: 4
Start page: 607
End page: 612
Number of pages: 6
ISSN: 0340-5443
eISSN: 1432-0762


Abstract

Across animal taxa, exclusive female offspring care has evolved repeatedly from biparental care, suggesting that the latter becomes evolutionarily unstable under certain conditions. Both the attributes of a species and the environment it experiences can help to predict shifts from one particular care mode to another. Nevertheless, factors inducing differences in care strategies among closely related species, or seasonal variation within species, have been subject to surprisingly little empirical testing. Here, we report the results of a field-based study that examined both among and within species variation in mate desertion in five species of closely related Nicaraguan cichlid fish in the genera Amphilophus and Amatitlania. The results show a link between female body size and male involvement in offspring care. Specifically, the larger the species the less often males were found to provide extended care. Furthermore, we found that solitary females became more common towards the end of the breeding season. We discuss the implications of this finding in the context of previous theoretical and empirical contributions regarding the frequency of offspring desertion by males.


Keywords

Body size, Lake Apoyo, Lake Xiloa, Mate desertion, Midas cichlid complex, Parental care, Seasonal variation, Species comparison

Last updated on 2020-28-09 at 02:39