Document Detail


Evolution of parental care driven by mutual reinforcement of parental food provisioning and sibling competition.
MedLine Citation:
PMID:  20667869     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In mammals, altricial birds and some invertebrates, parents care for their offspring by providing them with food and protection until independence. Although parental food provisioning is often essential for offspring survival and growth, very little is known about the conditions favouring the evolutionary innovation of this key component of care. Here, we develop a mathematical model for the evolution of parental food provisioning. We find that this evolutionary innovation is favoured when the efficiency of parental food provisioning is high relative to the efficiency of offspring self-feeding and/or parental guarding. We also explore the coevolution between food provisioning and other components of parental care, as well as offspring behaviour. We find that the evolution of food provisioning prompts evolutionary changes in other components of care by allowing parents to choose safer nest sites, and that it promotes the evolution of sibling competition, which in turn further drives the evolution of parental food provisioning. This mutual reinforcement of parental care and sibling competition suggests that evolution of parental food provisioning should show a unidirectional trend from no parental food provisioning to full parental food provisioning.
Authors:
Andy Gardner; Per T Smiseth
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-28
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  278     ISSN:  1471-2954     ISO Abbreviation:  Proc. Biol. Sci.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-14     Completed Date:  2011-04-08     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  196-203     Citation Subset:  IM    
Affiliation:
Department of Zoology, University of Oxford, , South Parks Road, Oxford OX1 3PS, UK. andy.gardner@zoo.ox.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animals
Behavior, Animal*
Biological Evolution*
Competitive Behavior*
Feeding Behavior
Female
Male
Models, Biological
Nesting Behavior
Siblings
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