Document Detail


Evolution of the human pygmy phenotype.
MedLine Citation:
PMID:  19246118     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Small human body size, or the 'pygmy' phenotype, is characteristic of certain African, Southeast Asian and South American populations. The convergent evolution of this phenotype, and its strong association with tropical rainforests, have motivated adaptive hypotheses that stress the advantages of small size for coping with food limitation, warm, humid conditions and dense forest undergrowth. Most recently, a life-history model has been used to suggest that the human pygmy phenotype is a consequence of early growth cessation that evolved to facilitate early reproductive onset amid conditions of high adult mortality. As we discuss here, these adaptive scenarios are not mutually exclusive and should be evaluated in consort. Findings from this area of research are expected to inform interpretations of diversity in the hominin fossil record, including the purported small-bodied species Homo floresiensis.
Authors:
George H Perry; Nathaniel J Dominy
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review     Date:  2009-02-24
Journal Detail:
Title:  Trends in ecology & evolution     Volume:  24     ISSN:  0169-5347     ISO Abbreviation:  Trends Ecol. Evol. (Amst.)     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-03-30     Completed Date:  2009-05-29     Revised Date:  2011-05-03    
Medline Journal Info:
Nlm Unique ID:  8805125     Medline TA:  Trends Ecol Evol     Country:  England    
Other Details:
Languages:  eng     Pagination:  218-25     Citation Subset:  IM    
Affiliation:
Department of Human Genetics, University of Chicago, 920 E. 58th Street, Chicago, IL 60637, USA. gperry@uchicago.edu
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MeSH Terms
Descriptor/Qualifier:
Biological Evolution*
Body Height / genetics*
Caloric Restriction
Ethnic Groups*
Growth
Humans
Phenotype
Grant Support
ID/Acronym/Agency:
F32GM085998/GM/NIGMS NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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