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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

Inaugural lecture focuses on intercultural communication
2005-03-15

Prof Johann de Wet, chairperson of the University of the Free State’s (UFS) Department of Communication and Information Studies, will deliver his inaugural lecture on Wednesday 16 March 2005 at 19:00 in the CR Swart Auditorium on campus.

The topic of the presentation is Meeting on the “narrow ridge” in intercultural communication.

Prof de Wet obtained the BA degree in 1977 at from the University of Cape Town, in 1982 an honors degree cum laude in Journalism from the University of  Stellenbosch, in 1985 an MA degree from the University of South Africa (UNISA) and in 1987 the D Litt Et Phil, also from UNISA.

His earlier professional life included being a diplomat stationed in Washington DC, and a SABC journalist.

Prof de Wet’s first stint in the academe was at UNISA (1983-1993) and the UFS (1993-1995).  He was an associate professor at both institutions.  Before returning to the UFS in 2001, Prof de Wet was director of communication in the public service, ministerial spokesperson at national and provincial levels, contributing editor of the Cape Argus, and communication consultant for various public and private sector institutions.

In his academic career of 16 years, Prof de Wet has authored/edited 12 scholarly books.  His other research outputs include some 20 accredited articles and scientific papers (national and international) respectively.  Much of his research has focused on persuasive and political communication, journalism and general communication theory. 

He is the founding and current editor of Communitas, a nationally-accredited academic journal on community communication and information impact.  He was appointed professor and chairperson of the Department of Communication and Information Studies at the UFS in January 2004.

MEDIA RELEASE
Issued by: Lacea Loader
Media Representative
Tel:  (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
15 March 2005

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