Phylogenetic reconstruction of the parental-care system in the ancestors of birds
2002 (English)In: Philosophical Transactions of the Royal Society of London. Biological Sciences, ISSN 0962-8436, Vol. 357, 251-257 p.Article in journal (Refereed) Published
Due to the controversy surrounding incipient avian parental care, ancestral parental care systems werereconstructed in a phylogeny including major extant amniote lineages. Using two different resolutions forthe basal avian branches, transitions between the states no care, female care, biparental care and malecare were inferred for the most basal branches of the tree. Uniparental female care was inferred for thelineage to birds and crocodiles. Using a phylogeny where ratites and tinamous branch off early and anordered character-state assumption, a transition to biparental care was inferred for the ancestor of birds.This ancestor could be any organism along the lineage leading from the crocodile–bird split up to modernbirds, not necessarily the original bird. We discuss the support for alternative avian phylogenies and thehomology in parental care between crocodiles and birds. We suggest that the phylogenetic pattern shouldbe used as a starting point for a more detailed analysis of parental care systems in birds and their relatives.
Place, publisher, year, edition, pages
2002. Vol. 357, 251-257 p.
Aves; Amniota; evolution; sex roles; homologous behaviour; alternative phylogenies
Research subject Biology with specialization in Evolutionary Organismal Biology
IdentifiersURN: urn:nbn:se:uu:diva-138916OAI: oai:DiVA.org:uu-138916DiVA: diva2:380288