Document Detail

Stress, developmental stability and sexual selection.
MedLine Citation:
PMID:  9376690     Owner:  NLM     Status:  MEDLINE    
Sexual selection may give rise to increases in the general level of stress experienced by individuals, either because intense directional selection reduces the ability of individuals to control the stable development of their phenotype, or because extravagant secondary sexual characters on their own impose stress on their bearers. Sexual selection often acts against individuals with asymmetric or otherwise deviant phenotypes, particularly if such phenotypic deviance occurs in secondary sexual characters. A small number of studies suggests that such characters also are more susceptible to the disruptive effects of deviant environmental conditions than are ordinary morphological characters. Plants often show extensive phenotypic asymmetry, and pollinators avoid asymmetric flowers, either because they are generally less attractive or provide fewer pollinator rewards. Floral symmetry may give rise to sexual selection with direct or indirect fitness benefits, as in animals. Sexual selection in animals may result in selection for relatively larger male body size, an overall increase in body size of a lineage and an increased risk of extinction (Cope's rule). Reduced stress resistance associated with intense sexual selection may contribute to this trend.
A P Møller
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  EXS     Volume:  83     ISSN:  1023-294X     ISO Abbreviation:  EXS     Publication Date:  1997  
Date Detail:
Created Date:  1997-11-21     Completed Date:  1997-11-21     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9204529     Medline TA:  EXS     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  255-68     Citation Subset:  IM    
Laboratoire d'Ecologie CNRS URA 258, Université Pierre et Marie Curie, Paris, France.
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MeSH Terms
Selection, Genetic*
Sex Characteristics*
Sexual Behavior, Animal*
Stress, Physiological

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