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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

New schools, restructuring part of streamlined Faculty of Health Sciences
2017-10-12

 Description: Health Sciences staff 2 Tags: Faculty of Health Sciences, five-school structure, Prof Gert van Zyl, Pathology, Biomedical Sciences  

From the left, front are: Dr Jocelyn Naicker,
Prof Gert van Zyl, Prof Magda Mulder;
back from left: Prof Chris Viljoen,
Marlene Viljoen, Deputy Director: Faculty of Health Sciences;
Prof Nathaniel Mofolo; and Prof Santie van Vuuren.
Photo: Rulanzen Martin


Numerous developments, such as the creation of two new schools and one newly restructured School of Medicine in the Faculty of Health Sciences at the University of the Free State (UFS), will catapult this renowned faculty to even greater heights.

Five-school structure to increase access
 
A five-school structure was proposed at the annual Faculty Management retreat in July 2016. The previous three-school model included the Schools of Medicine, Nursing, and Allied Health Professions.

The current School of Medicine has been restructured and will henceforth be known as the School of Clinical Medicine. The Schools of Pathology and Biomedical Sciences have been added to the faculty. “So, three new schools were in fact created within the faculty,” said Prof Gert van Zyl, Dean of the faculty.   

“There was also a request from the National Health Laboratory Services to group academics that is rendering services in pathology into a new School of Pathology.” This is what motivated the faculty management to create two new schools.

Esteemed academics appointed 

With the creation of the new schools, there were also new appointments within the Faculty of Health Sciences. Dr Jocelyn Naicker has been appointed as the new part-time Head of the School of Pathology, Prof Chris Viljoen was appointed as the part-time Head of the School of Biomedical Sciences, and Prof Nathaniel Mofolo as the new Head of the School of Clinical Medicine. Prof Santie van Vuuren remains Head of the School of Allied Health Professions, and Prof Magda Mulder as the head of the School of Nursing. 

Research outputs to remain as usual
The addition of the new schools will not impact research output. “In the past, research was done across departmental boundaries between all the departments in the faculty,” Prof Van Zyl said. The advantages of adding two additional schools are that the workload will be distributed among the five schools. The heads of schools will work within their respective disciplines and related areas, and will eliminate the duplication of administrative functions.

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