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Students hear from textbook writer about conservation genetics

02 August 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs

Genetics lecture — 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

New Rector and Chancellor inaugurated at UFS

2003-02-07

NEW RECTOR AND CHANCELLOR INAUGURATED AT UFS

Newly inaugurated Rector and Vice-Chancellor of the University of the Free State, Prof Frederick Fourie, has recommitted the university to the service of the broader community, through the pursuit of academic excellence and contributing to building a non-racial, democratic and just South Africa.

To make this a reality Prof Fourie proposed a social contract or accord between university constituencies and the community to chart the way forward to establishing a university that can meet the challenges of a developing democracy.

Prof Fourie was speaking at his inauguration ceremony on the Bloemfontein campus, where the former Ambassador to the United States, Dr Franklin Sonn, was also inaugurated as Chancellor of the UFS.

The twin inauguration ceremony – the first in the history of the UFS - was attended by former President Nelson Mandela, Education Minister, Kader Asmal, Free State Premier Winki Direko, and the executive mayor of Mangaung, Mr Pappie Mokoena, who all endorsed the appointments as evidence of the transformation of the UFS.

According to Prof Fourie, the greatest contribution that any university could make to social and economic development in South Africa was by being an excellent university that encouraged critical inquiry, scientific knowledge as well as community service.

“So whilst we cherish and foster the continuity of the university as part of the ageold international tradition of universities, this University embraces its particular role in this country now, embraces the changes in the form and scope of its role in this crucial period of our history. We are committed to making a real difference to the new nation,” he said.

His vision for the UFS was “to be a university of excellence, equity and innovation – a leader in research, teaching, community service, adult learning, transformation, non-racialism, non-sexism, multi-culturality and multilingualism – a contributor to our country and our continent’s growth and development – a truly South African university”.

Prof Fourie said the recent incorporation of the Qwaqwa campus of the University of the North into the University of the Free State, which is the first such incorporation to take place, would contribute to broadening access for poor communities to higher education. Introducing an innovation to the inauguration ceremony, Prof Fourie and the UFS staff pledged to their commitment to excellence and justice, quality and equity. Fourie is the 13th Rector of the University of the Free State, succeeding Prof. Stef Coetzee, and Dr Sonn is the 6th Chancellor, succeeding Ms Winkie Direko, Premier of the Free State.

In his inaugural address, Dr Sonn said the significance of today’s ceremony was that the UFS - as a former institution of the Afrikaner – had chosen to walk the path of justice and not merely survival. “This university has seemingly liberated itself. It is inclusively South African.

He said the academic community must play its role of vigilance and not indifference”. Referring to the stature of former president Mandela in international affairs, Dr Sonn said: “We must bring the weight ot science and critical analysis and interpretation to bear in support of Madiba and other moral giants.”

Inauguration Speech by Prof. Frederick C.v.N. Fourie (PDF format)

Inauguration Speech by Dr Franklin A. Sonn (PDF format)

Statement by the Minister of Education, Professor Kader Asmal (PDF format)

Speech by Prof. Viljoen (PDF format)

Speech by Executive Mayor Mokoena - Mangaung Local Municipality (PDF format)

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