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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

Graduates should make a difference as leaders and be agents of change
2017-06-22

Description: Mid-year graduation read more 22 June 2017 Tags: Mid-year graduation read more 22 June 2017

More than 5 000 degrees will be conferred over six days
and eleven ceremonies at the UFS mid-year graduation
ceremonies.
Photo: Johan Roux

Livestream of Graduation Ceremonies

“Make the choice to make a difference as the leaders of the future.” These words of Dr Susan Vosloo, Cardiothoracic Surgeon and member of the University of the Free State (UFS) Council, echoed the call to graduates on the first three days of the UFS mid-year graduation ceremonies. The ceremonies are taking place in the Callie Human Centre on the Bloemfontein Campus from 19 to 26 June 2017.

Dr Vosloo, also an alumna of the UFS, was one of six guest speakers at the biggest set of graduation ceremonies in the university’s history. A spirit of excitement is part of the festivities, as a total of 5 258 degrees will be conferred over six days in eleven ceremonies. The graduation week will conclude on 26 June 2017, when 460 master’s and doctoral degrees will be conferred – 72 of these are doctoral degrees.

Stand up and be counted
Dr Vosloo urged the graduands at the afternoon session on 19 June 2017 to stand up and be counted. “What we need are leaders who treasure integrity, dignity, accountability, transparency, and who will focus on the common challenges which we all face today.”

Dr Khotso Mokhele, UFS Chancellor, also encouraged the graduates to be agents of change who shouldn’t conform to the current system. “Decide that it is your country and that you will decide what it should be. Then it will not be the corrupt experiment which the current government turned it into. We wish you well. Go and be the agents of transformation.”

Ambassadors of the UFS
Prof Francis Petersen, UFS Rector and Vice-Chancellor, asked the graduates to make a contribution: “Be excellent ambassadors of the UFS, and make the UFS, your families, and our country proud by your strong, innovative, ethical, and excellent contributions.” He was the guest speaker during the morning and afternoon sessions on 20 June 2017.

He also said that they should never forget the supporting role others played in their success, whatever form it took.

Do it for those who fought for SA
Justice Connie Mocumie, Judge of Appeal at the Supreme Court of Appeal, encouraged the graduates to go out and contribute to the development of the country. She was the guest speaker at the morning and afternoon ceremonies on 21 June 2017.

“It is important for you to continue being experts in your area of expertise,” she said.

“Today is the beginning of better days to come. Do it for the legacy of those who fought for our country in pursuit of a better South Africa.”

Dipiloane Phutsisi, Principal and Chief Executive Officer of the Motheo TVET College in the Free State, said everyone is destined for greatness. “In the words of Dr Martin Luther King: Everyone has the power for greatness, not for fame but greatness, because greatness is determined by service.” She was the guest speaker at the morning session on 19 June 2017.

Click here to see a list of Deans’ and Senate medals awarded.

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