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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 challenged to fulfil their leadership obligations
2015-12-14



Procession frontline: seen making their way to the graduation ceremony are from left: Dr Khotso Mokhele (Chancellor of the UFS), Prof Busisiwe Bhengu (Chairperson of the South African Nursing Council), and Prof Jonathan Jansen (Vice-Chancellor of the UFS).
Photo: Johan Roux

The time for one-dimensional discourse was over, said Professor Busisiwe Bhengu, the guest speaker at this year’s Summer Graduation. Practical implementation of change was the step forward in forging the path into a brighter South Africa future.

During both the morning and afternoon ceremonies held at the University of the Free State (UFS) Bloemfontein Campus on 10 December 2015, the Chairperson of the South African Nursing Council, and Associate Professor at the University of KwaZulu-Natal, challenged the newly-graduated alumni to rise to the occasion, and be a part of the solution to our country’s diverse challenges.

Some of the pervasive hardships she highlighted were human immunodeficiency virus (HIV) and tuberculosis (TB), the escalating number of orphans and child-headed households, and the human resource shortages resulting from an ageing generation which is exiting the employment system through retirement.

Prior to dissolving the congregations, Dr Khotso Mokhele, the Chancellor of the UFS, said: “I was caught by the leadership challenge she [Prof Bhengu] threw out at the graduates because we indeed need courageous, creative and innovative leaders moving forward,” he said.

Dr Mokhele touched on South Africa’s dwindling economy, the leadership issues engulfing the government currently, the #FeesMustFall movement, and how students led a difficult dialogue and dictated the country’s trajectory as regards education, as well as the water scarcity we are facing. In closing, he warned that the graduates had lost the luxury of feeling led because of the fact that they now have a leadership obligation to fulfil.

Highlights of the day

Amongst 102 graduates from the UFS School of Medicine were two brothers from the Free State, Johann and Rudi Westraad who followed each other’s passion to become doctors.

Deputy Registrar at the UFS, Elna Van Pletzen, graduated with a Master’s in Higher Education Studies. Her thesis titled ”The implications of current legislative changes for academic freedom and institutional autonomy of South African higher education institutions”, focused on the amendment of Higher Education and Training Laws Amendment Act of 2012. In it, she tackled the subjects of academic freedom and the relationship between government and higher education institutions. Coincidently, her research was produced at a time when the subject of university autonomy was on the national agenda.

The occasion was not only a celebration of the students; teachers were also recognised for their dedication to quality education. Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS congratulated Dr Louise van den Berg (Faculty of Health Sciences) as well as Naquita Fernandes and Salomien Boshoff (both from the Faculty of Economic and Management Sciences) for their outstanding achievements. At a recent ceremony, Dr Van den Berg received the Vice-Chancellor’s Award for an individual teacher, and the Vice-Chancellor’s Award for the best teaching team was presented to Fernandes and Boshoff.

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