Document Detail

Conservation genetics of the endangered Pampas deer (Ozotoceros bezoarticus).
MedLine Citation:
PMID:  9465416     Owner:  NLM     Status:  MEDLINE    
The Pampas deer (Ozotoceros bezoarticus L. 1758) is the most endangered neotropical cervid, and in the past occupied a wide range of open habitats including grassland, pampas, savanna, and cerrado (Brazil) from 5 degrees to 41 degrees S. To better understand the effect of habitat fragmentation on gene flow and genetic variation, and to uncover genetic units for conservation, we examined DNA sequences from the mitochondrial control region of 54 individuals from six localities distributed throughout the present geographical range of the Pampas deer. Our results suggest that the control region of the Pampas deer is one of the most polymorphic of any mammal. This remarkably high variability probably reflects large historic population sizes of millions of individuals in contrast to numbers of fewer than 80,000 today. Gene flow between populations is generally close to one migrant per generation and, with the exception of two populations from Argentina, all populations are significantly differentiated. The degree of gene flow was correlated with geographical distance between populations, a result consistent with limited dispersal being the primary determinant of genetic differentiation between populations. The molecular genetic results provide a mandate for habitat restoration and reintroduction of Pampas deer so that levels of genetic variation can be preserved and historic patterns of abundance can be reconstructed. However, the source of individuals for reintroduction generally should be from populations geographically closest to those now in danger of extinction.
S González; J E Maldonado; J A Leonard; C Vilà; J M Duarte; M Merino; N Brum-Zorrilla; R K Wayne
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Molecular ecology     Volume:  7     ISSN:  0962-1083     ISO Abbreviation:  Mol. Ecol.     Publication Date:  1998 Jan 
Date Detail:
Created Date:  1998-03-11     Completed Date:  1998-03-11     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9214478     Medline TA:  Mol Ecol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  47-56     Citation Subset:  IM    
División Citogenética, IIBCE, Montevideo, Uruguay.
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MeSH Terms
DNA, Mitochondrial / genetics
Deer / physiology*
Genetic Variation*
Genetics, Population*
Polymorphism, Genetic
South America
Reg. No./Substance:
0/DNA, Mitochondrial

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

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