Conservation priorities for chukar partridge in Israel based on genetic diversity across an ecological gradient

Kark, S, Alkon, PU, Safriel, UN and Randi, E (1999) Conservation priorities for chukar partridge in Israel based on genetic diversity across an ecological gradient. Conservation Biology, 13 3: 542-552. doi:10.1046/j.1523-1739.1999.98150.x


Author Kark, S
Alkon, PU
Safriel, UN
Randi, E
Title Conservation priorities for chukar partridge in Israel based on genetic diversity across an ecological gradient
Journal name Conservation Biology   Check publisher's open access policy
ISSN 0888-8892
Publication date 1999-06-01
Year available 1999
Sub-type Article (original research)
DOI 10.1046/j.1523-1739.1999.98150.x
Open Access Status Not yet assessed
Volume 13
Issue 3
Start page 542
End page 552
Total pages 11
Place of publication MALDEN
Publisher WILEY-BLACKWELL
Language eng
Abstract Recent studies suggest that patterns of genetic diversity significantly influence the viability and persistence of local populations. Revealing and mapping spatial patterns of genetic diversity within species' ranges may be vital when defining criteria and prioritizing areas for conservation. Chukar Partridges (Alectoris chukar) in Israel occur along a steep ecogeographical gradient extending from mesic Mediterranean zones in the north to steppe and desert regions in the south. To rest the hypothesis that the most genetically diverse populations within a species' range occur within the ecotone, an area of transition between ecosystems where a sharp environmental gradient exists, we examined the allozyme diversity of chukars collected at five locations within the species' continuous range in each of 2 years. Based on 32 allozyme loci, the genetic diversity of chukars increased significantly, along a gradient from population in Mediterranean regions to those at the ecotone in the northern Negev desert, despite close geographical proximity among populations Genetic diversity As estimated by percent polymorphic loci, observed and expected heterozygosity, and mean number of alleles was not homogeneous among sampling localities: single and multilocus Hardy-Weinberg and linkage disequilibria increased along the gradient toward the ecotone. Populations exhibited some isolation by distance effects in the face of substantial gene flow. We therefore recommend that higher conservation priority be assigned to the Mediterranean-Negev ecotone area. For Chukar Partridges, it supports the highest overall genetic diversity across ecological gradients. Rapid urbanization of Israeli landscapes, and management of chukars in Israel within a metapopulation context is an urgent requirement.
Keyword Linkage Disequilibrium
Subdivided Populations
Flow
Biodiversity
Speciation
Selection
Survival
History
Biology
Sinks
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: ResearcherID Downloads - Archived
 
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