Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
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

Young researchers shine during Afromontane Colloquium
2016-12-01

Description: Afromontane Colloquium  Tags: Afromontane Colloquium  

From the left are Drs Reetu Sogani (India),
Greg Greenwood (US-Switzerland), Teboho Manchu
(Acting Campus Principal), Drs Jianchu Xu (China),
Henri Rueff (Switzerland), Glen Taylor (Senior Director:
Research Development), and Elsa Crause
(Campus Vice-Principal: Academic and Research).

The University of the Free State’s Afromontane Research Unit (ARU), which is situated on the Qwaqwa Campus, has the potential to produce some of the world’s best and dynamic young researchers. This is the view of Dr Henri Rueff, who was one of the keynote speakers during the recent ARU Colloquium hosted at Golden Gate in the Eastern Free State.

Dr Rueff, a geographer and environmental economist from the Universities of Basel and Bern in Switzerland, was referring to no less than ten Qwaqwa Campus postgraduate students who made oral and poster presentations during the inaugural international colloquium.

“You have some of the world’s most motivated and highly skilled students who have the courage to stand in front of extremely critical scientists from all over the globe – and that must be commended,” he said.

Also talking about the students at the colloquium, was Dr Reetu Sogani from India, who said that her first trip to South Africa did not disappoint. “This colloquium was a very good learning experience for me as I had the opportunity to interact with brilliant and young scientists from this part of the world,” she added. In closing the colloquium, the Senior Director: Research Development, Dr Glen Taylor, committed the UFS to the success of the unit.

“The ARU will strengthen the research output of the campus. But most critically, it is setting the research agenda for the Qwaqwa Campus, and for the institution at large, to address the challenges that the surrounding mountain communities are faced with,” he said.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept