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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

Visiting UK professor presents research project at CRHED
2017-04-12

Description: ' AM Bathmaker CRHED  Tags: AM Bathmaker CRHED

Prof Ann-Marie Bathmaker, University of Birmingham,
during her presentation at the UFS.

Photo: Eugene Seegers

Paired Peers: Pathways to social mobility—Investing in the future? Moving through HE and into employment was recently presented to staff and postdoctoral students by Prof Ann-Marie Bathmaker, from the University of Birmingham, during her visit to South Africa while working on the Miratho Research Project with CRHED. Prof Bathmaker’s research interest particularly focuses on issues of equity, social mobility, and social class inequalities. Her presentation, the second in the Higher Education Research Seminar series presented by CRHED, was based on research resulting from a seven-year project in England.

In the UK, higher education (HE) is considered a key route to social mobility. Interest has grown in graduate destinations, particularly the prospects and obstacles faced by graduates from different social backgrounds. Paired Peers followed 70 students throughout their undergraduate studies and into the working world.

The project explored the processes of social mobility, highlighting different orientations and practices towards investing in the future, which ranged from investing in the present to cultural entrepreneurship for the future.

Participants were selected from two universities in Bristol, England. The research team focused on three key themes: “Getting In” (access to HE), “Getting On” (financial limitations, friendships, accommodation), and “Getting Out” (holiday work, internships, and finding suitable graduate employment).

Prof Bathmaker was able to highlight key research findings, many of which resonated with those attending. From the question-and-answer session, it was clear that many issues regarding inclusivity, whether across gender, ethnic, or language barriers, find their parallels in the South African context and can be of benefit to higher education practitioners here.

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