Vlaanderen.be

Onderzoeksoutput

Effect of the landscape matrix on gene flow in a coastal amphibian metapopulation

Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikelOnderzoekpeer review

Auteurs

Afdelingen, onderzoeksgroepen en diensten

Details

Originele taal-2Engels
TijdschriftConservation Genetics
Volume18
Tijschrift nummer6
Pagina's (van-tot)1359-1375
ISSN1566-0621
StatusGepubliceerd - 2017

Abstract

Functional connectivity is crucial for the persistence of a metapopulation, because migration among subpopulations enables recolonization and counteracts genetic drift, which is especially important in small subpopulations. We studied the degree and drivers of connectivity among occupied patches of a coastal dune metapopulation of the Natterjack Toad (Epidalea calamita Laurenti), on the basis of microsatellite variation. As spatial landscape heterogeneity is expected to influence dispersal and genetic structure, we analyzed which landscape features affect functional connectivity and to what extent. Sixty different landscape resistance scenarios as well as the isolation-by-distance model were compared using two landscape genetics approaches. We identified three subpopulations with unidirectional levels of gene flow among the two most geographically separated subpopulations, while inferred gene flow into the geographically intermediate subpopulation was limited. Urbanization and vegetation height negatively affected connectivity. Low estimates of genetic diversity and effective population size indicate that conservation measures in the smallest and most isolated subpopulation are required.

Thematische lijst

EWI Biomedische wetenschappen

Taxonomische lijst

Geografische lijst

Vrije trefwoorden

  • landschapsgenetica

Onderzoeksoutput

Projecten
Onderzoeksoutputs
Onderzoeksoutput (gerelateerd via auteurs)
Projecten (gerelateerd via auteurs)
Winkelwagen
Toevoegen aan winkelwagen Opgeslagen in winkelwagen

Kopieer de tekst uit dit veld...

Documenten

Documenten

  • Cox_etal_2017_ConservGenet

    !!Final published version, 1 MB, PDF-document

DOI

Relaties
Bekijk grafiek van relaties