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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

Student one of ten Google Young Minds
2012-04-23

 

Sibusiso Tshabalala is making strides as an international young leader.
23 April 2012

Third-year B.Com Law student, Sibusiso Tshabalala from our university, is one of ten of Google’s Young Minds for 2012. He made it to the top thirty from a pool of 1 700 applicants at the beginning of April 2012.

“The standard of other competitors and the panel of judges were extremely high. I was excited to receive the news that I had made it,” he says.

Annually, Google searches for ten students internationally who demonstrate strong leadership capabilities. This once-in-a-lifetime opportunity is given to students who also have an entrepreneurial drive and a commitment to social activism. Sibusiso was selected for his involvement in renovating libraries and training budding public speakers. His projects also involve encouraging literacy and critical thinking in poor areas in the Free State by establishing reading clubs.

Sibusiso will be attending the Google Zeitgeist in London from 20 to 22 May 2012.

At the conference, he will have the opportunity to meet some of the world’s greatest minds. Over 400 influential business leaders and visionaries from around the world will be hosted. Speakers include Prof. Stephen Hawking, former Lucasian Professor of Mathematics: University of Cambridge; Sir Richard Branson, Virgin Group; Eric Schmidt, Chairman: Google; Larry Page, CEO: Google; Angela Ahrendts, CEO: Burberry, and international musician will.i.am.

The ten winners will also take part in a series of ‘master classes’ with the aim of mentoring them to help further their future projects.

His achievements include the 2010 winner of the National SAGE Competition (Students for the Advancement of Global Entrepreneurship). He represented South Africa in Brazil that same year and was also National Winner of the Best Speaker Award at the 2011 South African National Universities Debating Championships. He was ranked as one of the top ten debaters in Africa at the Pan African Universities Debating Championships held in Bulawayo, Zimbabwe in 2011. Sibusiso recently chaired the committee that organised the first university based CANSA Relay for Life Event in South Africa. This took place at the UFS in February 2012.

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