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02 August 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
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

Elzmarie honoured internationally for economics education
2012-10-13

Elzmarie Oosthuizen (middle) with Prof. John Brock of Colorado University in Colorado Springs and Prof. Claudia Parliament of Minnesota University.
12 October 2012

An exceptional honour has been bestowed on Elzmarie Oosthuizen of the Faculty of Natural and Agricultural Sciences with the awarding of the Patricia K. Elder International Award to her in America at the beginning of October 2012.

The award is made by the National Association of Economics Educators and the Council for Economics Education (CEE). It gives recognition to individuals whose outstanding and committed service makes a meaningful impact on the delivery of economics education worldwide. The award was made to her at the 51th annual Financial Literacy and Economics Education Conference in Kansas City, Missouri.

Elzmarie is Manager: Teaching and Learning in the Faculty. She was originally appointed to manage various projects to better prepare students for what is expected of them.  She teaches in the extended programme and achieved success with bridging mathematics and the changing methodologies that she uses.

She plays an active role in international economics education programming. Elzmarie was an essential element in the development of CEE’s programmes in South Africa and has now moved to expand economics education programmes to Namibia, Lesotho and Botswana. 

She successfully participated in the CEE’s Train the Writers programme and lobbied the CEE to provide a mentoring programme that would prepare participants to offer a training of writers programme within their own country. This year, she presented the first writers programme for South African teachers.

Claudia Parliament, Director of the Minnesota Council on Economics Education, said in her recommendation for the award:  “Elzmarie is a change agent.  She has boundless energy.  Few can keep up with her work pace.  She has put economics education on the map in South Africa and she is poised to have a similar impact in other countries in southern Africa.”

Elzmarie says: “I feel very honoured to have received this award.” Since 2004, she has worked very hard and trained some 800 teachers. In 2011, some 200 000 children were reached through the training.

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