Document Detail


Body size and species-richness in carnivores and primates.
MedLine Citation:
PMID:  9474795     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We use complete species-level phylogenies of extant Carnivora and Primates to perform the first thorough phylogenetic tests, in mammals, of the hypothesis that small body size is associated with species-richness. Our overall results, based on comparisons between sister clades, indicate a weak tendency for lineages with smaller bodies to contain more species. The tendency is much stronger within caniform carnivores (canids, procyonids, pinnipeds, ursids and mustelids), perhaps relating to the dietary flexibility and hence lower extinction rates in small, meat-eating species. We find significant heterogeneity in the size-diversity relationship within and among carnivore families. There is no significant association between body mass and species-richness in primates or feliform carnivores. Although body size is implicated as a correlate of species-richness in mammals, much of the variation in diversity cannot be attributed to size differences.
Authors:
J L Gittleman; A Purvis
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  265     ISSN:  0962-8452     ISO Abbreviation:  Proc. Biol. Sci.     Publication Date:  1998 Jan 
Date Detail:
Created Date:  1998-03-06     Completed Date:  1998-03-06     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  113-9     Citation Subset:  IM    
Affiliation:
Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville 37996-1610, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Constitution*
Carnivora*
Evolution*
Phylogeny
Primates*
Comments/Corrections

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