Evolutionary transitions in parental care in cichlid fish
نویسندگان
چکیده
منابع مشابه
Evolutionary transitions in parental care in cichlid ®sh
Cichlid ¢shes (Cichlidae) are well suited for testing theories of the evolution of vertebrate parental care. These freshwater teleost ¢sh provide parental care for their o¡spring, display many di¡erent forms of care and have interspeci¢c variation in which sex stays with the young. Here, we assemble the ¢rst family-wide composite phylogeny based on morphological and molecular studies, and trace...
متن کاملEvolutionary transitions in parental care and live bearing in vertebrates.
We provide the first review of phylogenetic transitions in parental care and live bearing for a wide variety of vertebrates. This includes new analyses of both numbers of transitions and transition probabilities. These reveal numerous transitions by shorebirds and anurans toward uniparental care by either sex. Whereas most or all of the shorebird transitions were from biparental care, nearly al...
متن کاملOn the evolutionary pathway of parental care in mouth-brooding cichlid ®sh
Evolutionary theory predicts that di¡erences in parental care patterns among species arose from interspeci¢c di¡erences in the costs and bene¢ts of care for each sex. In Galilee St Peter's ¢sh, Sarotherodon galilaeus (Cichlidae), male care, female care and biparental care all occur in the same population. We exploit this unusual variability to isolate conditions favouring biparental versus unip...
متن کاملSexual selection determines parental care patterns in cichlid fishes.
Despite a massive research effort, our understanding of why, in most vertebrates, males compete for mates and females care for offspring remains incomplete. Two alternative hypotheses have been proposed to explain the direction of causality between parental care and sexual selection. Traditionally, sexual selection has been explained as a consequence of relative parental investment, where the s...
متن کاملIsotocin regulates paternal care in a monogamous cichlid fish.
While the survival value of paternal care is well understood, little is known about its physiological basis. Here we investigate the neuroendocrine contributions to paternal care in the monogamous cichlid, Amatitlania nigrofasciata. We first explored the dynamic range of paternal care in three experimental groups: biparental males (control fathers housed with their mate), single fathers (mate r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 1998
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.1998.0569