Genetic variation, structure and dispersal among Cape buffalo populations from the Hluhluwe-Imfolozi and Kruger National Parks of South Africa

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dc.contributor.advisor Bastos, Armanda D.S. en
dc.contributor.advisor Van Hooft, W.F. en
dc.contributor.postgraduate Greyling, Barend Jacobus en
dc.date.accessioned 2013-09-07T04:26:10Z
dc.date.available 2008-08-12 en
dc.date.available 2013-09-07T04:26:10Z
dc.date.created 2007-09-06 en
dc.date.issued 2011-11-01 en
dc.date.submitted 2008-07-15 en
dc.description Thesis (PhD (Zoology))--University of Pretoria, 2011. en
dc.description.abstract Genetic variation, structure and dispersal among Cape buffalo populations from the Hluhluwe-Imfolozi and Kruger National Parks of South Africa Barend Jacobus (Ben) Greyling Doctor of Philosophy (Zoology) Department of Zoology and Entomology Supervisor: Prof. Armanda Slager-Bastos Co-supervisor: Dr. Pim van Hooft 2007 The research reported on in this thesis is aimed at quantifying and qualifying, using a molecular genetics approach, some of the factors that influence the population dynamics of Cape buffalo (Syncerus caffer caffer) from the Kruger National Park (KNP) and Hluhluwe-imFolozi park (HiP) in South Africa. Prior to large-scale genotyping of animals sampled from these parks, a high-throughput, cost- and time-effective profiling system was developed. The system, based on a panel of 17 microsatellites (Msats), was found to be quite suitable for the intended application, since it uncovered substantial genetic variation, while exclusion probabilities were in excess of 0.999 and a random match probability of 6.5 x 10-17 was obtained. Inter-population level analyses revealed that the two populations were significantly differentiated (Msat data: FST = 0.159; mtDNA data: FST = 0.275), while little or no differentiation could be demonstrated among most herds and subpopulations. It seems that while drift has played a major role in divergence of the two populations, gene flow is the primary driving force behind the maintenance of genetic variation among herds and subpopulations. A striking feature was that HiP exhibited significant lower levels of genetic variation than KNP, which is reflected by the fact that a mere 4 haplotypes could be found in HiP compared to 34 identified in KNP. The absence of geographic partitioning and small genetic distances separating the haplotypes may be attributed to genetic contact between the respective populations in the distant past. The reduced levels of genetic variation in HiP may be the remnants of the rinderpest bottleneck. HiP also displayed signals of a population contraction, while KNP is in equilibrium and seems to have retained substantial levels of genetic variation. HiP also experienced a steady decline in genetic variation from 1986 to 2004, while sex-biased dispersal was less pronounced in HiP than in KNP, possibly due to the lack of mtDNA diversity and the small size of the park. The results presented here provide valuable baseline information for making conservation management decisions from a genetic point of view. en
dc.description.availability unrestricted en
dc.description.department Zoology and Entomology en
dc.identifier.citation Greyling, BJ 2007, Genetic variation, structure and dispersal among Cape buffalo populations from the Hluhluwe-Imfolozi and Kruger National Parks of South Africa, PhD thesis, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/26298 > en
dc.identifier.other D376/ag en
dc.identifier.upetdurl http://upetd.up.ac.za/thesis/available/etd-07152008-090238/ en
dc.identifier.uri http://hdl.handle.net/2263/26298
dc.language.iso en
dc.publisher University of Pretoria en_ZA
dc.rights © 2007 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. en
dc.subject Cape buffalo en
dc.subject Syncerus caffer caffer en
dc.subject Kruger national park en
dc.subject Hluhluwe-imfolozi park en
dc.subject South africa en
dc.subject UCTD en_US
dc.title Genetic variation, structure and dispersal among Cape buffalo populations from the Hluhluwe-Imfolozi and Kruger National Parks of South Africa en
dc.type Thesis en


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