How does genetic diversity change towards the range periphery? An empirical and theoretical test

Kark, Salit, Hadany, Lilach, Safriel, Uriel N., Noy-Meir, Imanuel, Eldredge, Niles, Tabarroni, Cristiano and Randi, Ettore (2008) How does genetic diversity change towards the range periphery? An empirical and theoretical test. Evolutionary Ecology Research, 10 3: 391-414.

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Author Kark, Salit
Hadany, Lilach
Safriel, Uriel N.
Noy-Meir, Imanuel
Eldredge, Niles
Tabarroni, Cristiano
Randi, Ettore
Title How does genetic diversity change towards the range periphery? An empirical and theoretical test
Journal name Evolutionary Ecology Research   Check publisher's open access policy
ISSN 1522-0613
1937-3791
Publication date 2008-03
Sub-type Article (original research)
Open Access Status File (Publisher version)
Volume 10
Issue 3
Start page 391
End page 414
Total pages 24
Place of publication Tucson, AZ, United States
Publisher Evolutionary Ecology
Language eng
Formatted abstract
Question: How does genetic diversity change as one moves along a species’ range, towards the periphery? Previous work shows contradictory evidence for an increase, decrease or no clear trend along the range.
Hypothesis: A hump-shaped unimodal pattern of within-population genetic diversity will occur along the range with peak diversity in sub-peripheral populations. This hypothesis incorporates and explains some of the apparent contradictions found in the literature.
Organism: Thirteen native chukar partridge (Alectoris chukar) populations.
Location: A steep environmental gradient towards the periphery of the species’ range in Israel.
Methods: Genetic diversity was estimated in 26 allozyme loci.
Conclusions: A unimodal pattern of within-species genetic diversity, as expressed by measures of heterozygosity, is found along the range. Diversity peaks at the sub-periphery of the chukar range. These populations are located at the ecotone between the Mediterranean and desert climatic regions.
Keyword Alectoris chukar
Distribution range
Genetic diversity
Israel
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
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