Document Detail


Plastic reproductive strategies in a clonal marine invertebrate.
MedLine Citation:
PMID:  14667344     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Plastic reproductive allocation may allow individuals to maximize their fitness when conditions vary. Mate availability is one condition that may determine the fitness of an individual's allocation strategy. Using a variety of methods, I detected evidence of plastic allocation to asexual (clonal) reproduction in response to mate availability in the brittle star Ophiactis savignyi. There were more mature individuals in populations in which both sexes were present, and clones from these populations had fewer clone-mates than clones from single-sex populations. Animals placed with mates in a field experiment divided less frequently than animals without a mate. These findings demonstrate that animals reduce their allocation to asexual reproduction when mates are present and when a loss of fecundity associated with cloning would decrease offspring production. This plasticity is probably adaptive because it maximizes sexual-reproductive potential when fertilization is more likely, but maximizes survival of the clone when mates are absent and gametes are unlikely to be converted to offspring.
Authors:
Tamara M McGovern
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  270     ISSN:  0962-8452     ISO Abbreviation:  Proc. Biol. Sci.     Publication Date:  2003 Dec 
Date Detail:
Created Date:  2003-12-11     Completed Date:  2004-02-03     Revised Date:  2010-09-20    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  2517-22     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, Florida State University, Tallahassee, FL 32306-1100, USA. tmmcgov@u.washington.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Echinodermata / physiology*
Female
Male
Population Dynamics
Reproduction / physiology
Reproduction, Asexual / physiology*
Selection, Genetic*
Comments/Corrections

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