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Alistair Naidoo, second-year master’s student in Conservation Genetics and full-time technician in the Department of Genetics; Prof Paul Grobler, Head of the Department of Genetics; Prof Gordon Luikart; and Hannah Janse van Vuuren, third-year master’s student in Conservation Genetics.

It is an important and exciting time to be doing research in conservation genetics. This is according to Prof Gordon Luikart, Professor of Conservation Ecology and Genetics at the Flathead Lake Bio Station at the University of Montana in the United States. 

Prof Luikart, whose primary research focus is the application of genetics to the conservation of natural and managed populations, recently delivered a lecture, The Expanding Role of Genetics/omics in Wildlife Research and Conservation, on the Bloemfontein Campus of the University of the Free State (UFS). The lecture, hosted by the Department of Genetics, was attended by a group of students and lecturers in conservation and a number of related fields. 

He is one of the leading scientists in the field of conservation genetics, including integration of genomics in conservation projects. He is also co-author of the textbook Conservation and the Genomics of populations – the current prescribed textbook for GENE3744.

Species threatened with extinction

In 2008, the International Union for Conservation of Nature (IUCN) stated that approximately 10-20% of all vertebrate and plant species are threatened with extinction over the next few decades. In 1984, American biologist Edward O Wilson also said that it will take millions of years to correct the ongoing loss of genetics and species diversity caused by the destruction of natural habitats. “This is the folly our descendants are least likely to forgive us.”

Prof Luikart is of the opinion that genetics has enormous potential to help manage wildlife and prevent extirpation. “My research works to realise this potential and help wildlife managers conserve populations and ecosystems,” he says. 

Conservation managers and biologists have understood the risks of inbreeding for more than 100 years. In his lecture, one of the aspects of genetic conservation he focused on, was the negative effects of inbreeding and how this can be reversed using genetic rescue. 

With the genetic rescue study, they found that the gene flow into recently isolated populations can increase individual fitness and population growth. He proposed that conservation managers should consider genetic principles and rescue as practical and important tools. 

Prof Luikart also provided a list of information that can be retrieved from molecular genetic data to help conservation managers. This includes intel on census and effective population size, gene flow and dispersal, local adaptation and selection, forensics, genetic identification and law enforcement, and disease ecology and transmission. 

Non-invasive genetic monitoring

In terms of detecting gene flow, he focused on a study about non-invasive genetic monitoring that was conducted in the Yellowstone Park. Prof Luikart and a group of students collected the shed hair and faeces of the grizzly bear, obtained from trees and hair traps, which were used as a source of DNA. 

They established, for instance, that inbreeding depression is more common and stronger than previously thought in natural populations. Genetic monitoring, using non-invasive methods as described, has been found to be an effective tool that conservation managers should consider for detecting inbreeding and loss of genome-wide variation.

His research on the bighorn sheep, the alpine ibex, and the black bear informed most of the findings he discussed during his lecture.

News Archive

Multilingualism and exclusion to be discussed
2007-11-27

 
 Some of the UFS staff who will be attending the colloquium on multilinguisim and exclusion in Antwerp, Belgium are, from the left, front: Prof. Theo du Plessis and Ms Susan Lombaard; back: Prof. Johan Lubbe and Mr Roelof Geyser. All are from the Unit for Language Management.
 
Multilingualism and exclusion to be discussed

Five members of the University of the Free State’s (UFS) Unit for Language Management will be taking part in an international colloquium at the University of Antwerp in Belgium on the theme: “Multilingualism and exclusion – perspectives on language and society” this week.

“During this week’s colloquium, approximately twenty South African and Flemish colleagues will reflect on the complex relationships within multilingual communities, where a variety of factors can contribute to the inclusion or exclusion of individuals or communities. Some of the papers will focus on policy measures (“from above”) with regard to the relative position of languages in a particular state, and the impact of these policy measures on the lives of language users. Others will investigate perceptions and “appropriation” (“from below”) by the same language user. In view of the multiple points of departure, the colloquium should contribute towards a better understanding of the dynamics within multilingual communities,” said Prof. Theo du Plessis, Director of the Unit for Language Management at the UFS.

“To give expression to the theme of multilingualism and exclusion, lectures will be presented in three languages, namely Afrikaans, English and Dutch. Several postgraduate students (from South Africa and Flanders) will also have an opportunity to report on investigations they are conducting within the framework of their master’s degree and doctoral studies,” said Prof. Du Plessis.

The colloquium is a follow-up of an international symposium held at the UFS during April 2006 in which a considerable number of outstanding scholars from various countries participated.

According to Prof. Du Plessis, the proceedings of the symposium held last year will be released in book form as part of the unit’s publication series “Studies in Language Policy in South Africa”, published by Van Schaik Publishers.

This sixth issue in the series entitled: “Multilingualism and Exclusion. Policy, Practice, Prospects” will be released tonight (26 November 2007) by the Permanent Deputy of the Province of Antwerp at a prestigious event during the colloquium. The issue was edited by Prof. Du Plessis, Prof. Pol Cuvelier (University of Antwerp), Dr Michael Meeuwis (University of Ghent) and Ms Lut Teck (Institute for Higher Education and the Arts in Brussels).

The UFS will be represented by Prof. Du Plessis, Prof. Johan Lubbe, Ms Susan Lombaard and Mr Roelof Geyser of the Unit for Language Management, as well as Prof. Jackie Naudé of the Department of Afro-Asiatic Studies, Sign Language and Language Practice. Representatives from the universities of Pretoria, Johannesburg, North West and the Monash University in Johannesburg will also be participating in the colloquium.

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
26 November 2007

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