Changing patterns of population structure and gene flow at different spatial scales in birgus latro (The coconut crab)

Lavery S., Moritz C. and Fielder D.R. (1995) Changing patterns of population structure and gene flow at different spatial scales in birgus latro (The coconut crab). Heredity, 74 5: 531-541. doi:10.1038/hdy.1995.75


Author Lavery S.
Moritz C.
Fielder D.R.
Title Changing patterns of population structure and gene flow at different spatial scales in birgus latro (The coconut crab)
Journal name Heredity   Check publisher's open access policy
ISSN 1365-2540
Publication date 1995-01-01
Sub-type Article (original research)
DOI 10.1038/hdy.1995.75
Open Access Status Not yet assessed
Volume 74
Issue 5
Start page 531
End page 541
Total pages 11
Language eng
Subject 1311 Genetics
2716 Genetics (clinical)
Abstract The population structure of the coconut crab (Birgus latro) was studied by examining genetic variation at seven polymorphic enzyme loci. Individuals were collected from 10 locations (grouped in seven major populations) throughout the Indo-Pacific distribution of the species. Significant population differentiation was found among all seven major populations (FST = 0.078, P< 0.001) and among the six Pacific Ocean populations (frST= 0.026, P<0.01). There were no significant differences in allele frequencies among adjacent Vanuatu islands separated by up to 200 km. At any one location there were no significant changes in allele frequencies over time (up to 3 years). Estimates of gene flow varied considerably, depending on the method of calculation, but all supported the same interpretations of population subdivision. The pattern of population structure varied with the spatial scale under consideration. The Indian Ocean population (from Christmas Island) was clearly divergent from all Pacific populations, in the fashion of an island model. However, within the Pacific, the relation between genetic and geographical distance showed that the pattern of genetic variation closely resembled an isolation by distance model. Populations from adjacent Vanuatu islands exhibited panmixia.
Keyword Allozymes
Birgus latro
Gene flow
Indo-Pacific biogeography
Larval dispersal
Population genetics
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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