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Population genetics of the invasive wasp, Vespula germanica, in South Africa

Thesis (MScConsEcol)--Stellenbosch University, 2020.

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Main Author: Eloff, Julia
Other Authors: Veldtman, Ruan
Format: Thesis
Language:English
Published: Stellenbosch : Stellenbosch University 2020
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access_status_str Open Access
author Eloff, Julia
author2 Veldtman, Ruan
author_browse Eloff, Julia
Veldtman, Ruan
author_facet Veldtman, Ruan
Eloff, Julia
author_sort Eloff, Julia
collection Thesis
dc_rights_str_mv Stellenbosch University
description Thesis (MScConsEcol)--Stellenbosch University, 2020.
format Thesis
id oai:scholar.sun.ac.za:10019.1/107772
institution Stellenbosch University (South Africa)
language English
last_indexed 2026-06-10T12:43:05.531Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository
publishDate 2020
publishDateRange 2020
publishDateSort 2020
publisher Stellenbosch : Stellenbosch University
publisherStr Stellenbosch : Stellenbosch University
record_format dspace
source_str SUNScholar — Stellenbosch University Repository
spelling oai:scholar.sun.ac.za:10019.1/107772 Population genetics of the invasive wasp, Vespula germanica, in South Africa Eloff, Julia Veldtman, Ruan Lester, Phil Stellenbosch University. Faculty of AgriSciences. Dept. of Conservation Ecology and Entomology. Microsatellites (Genetics) Biological invasions Vespula germanica Mitochondrial DNA UCTD Thesis (MScConsEcol)--Stellenbosch University, 2020. ENGLISH ABSTRACT: The German wasp (Vespula germanica) is a highly successful invader on a global scale. These wasps were first observed in the Western Cape region in South Africa in 1972 and they have the potential to expand their range and cause significant damage to the native biodiversity. Our study used nuclear (microsatellites) and mitochondrial DNA (mtDNA) from 42 wasp colonies to analyse the population genetics of V. germanica in their invaded South Africa range. We sequenced three mitochondrial genes; cytochrome c oxidase I, cytochrome b and cytochrome c oxidase II. We found six mtDNA haplotypes present in South Africa, suggesting either multiple introductions or one introduction with multiple queens. We examined nine microsatellite loci and found weak to no genetic sub-structuring, likely due to high dispersal rates. We concluded that German wasps in South Africa maintain a homogenous population, most likely via movement of individuals between localities. Due to the presence of multiple introductions in the region, it could mean that future introductions may be likely and therefore eradication would be ineffective as recolonization would occur. It is therefore recommended that further efforts be made to prevent additional introductions prior to eradication efforts. AFRIKAANSE OPSOMMING: Geen opsomming Masters 2020-02-12T08:34:54Z 2020-04-28T12:02:56Z 2020-02-12T08:34:54Z 2020-04-28T12:02:56Z 2020-04 Thesis http://hdl.handle.net/10019.1/107772 en Stellenbosch University x, 65 leaves : illustrations (some color) application/pdf Stellenbosch : Stellenbosch University
spellingShingle Microsatellites (Genetics)
Biological invasions
Vespula germanica
Mitochondrial DNA
UCTD
Eloff, Julia
Population genetics of the invasive wasp, Vespula germanica, in South Africa
title Population genetics of the invasive wasp, Vespula germanica, in South Africa
title_full Population genetics of the invasive wasp, Vespula germanica, in South Africa
title_fullStr Population genetics of the invasive wasp, Vespula germanica, in South Africa
title_full_unstemmed Population genetics of the invasive wasp, Vespula germanica, in South Africa
title_short Population genetics of the invasive wasp, Vespula germanica, in South Africa
title_sort population genetics of the invasive wasp vespula germanica in south africa
topic Microsatellites (Genetics)
Biological invasions
Vespula germanica
Mitochondrial DNA
UCTD
url http://hdl.handle.net/10019.1/107772
work_keys_str_mv AT eloffjulia populationgeneticsoftheinvasivewaspvespulagermanicainsouthafrica