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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

Qwaqwa Campus’s Teaching and Learning Champs scoop up award
2014-10-24



Dr Elize Smuts (right) proudly displaying the UFS Vice-Chancellor’s Team Award. Equally ecstatic, is Qwaqwa Campus’s CTL Manager, Fred Mudavanhu.
Photo: Thabo Kessah
Action research to improve classroom practice and student success rates, recently received a boost when the Qwaqwa Campus’s Teaching and Learning (TL) Champions were honoured with the prestigious UFS Vice-Chancellor’s Team Award. The award was in recognition of the team’s efforts to enhance professional development and was accompanied by a R50 000 prize that will be utilised to further encourage and develop a scholarly culture on the Qwaqwa Campus.

“An active learning community has developed over the past four years, which led to the creation of a scholarly forum for sharing problems, experiences and new knowledge”, revealed Dr Elize Smuts, who has been the pillar of strength in the development of TL Champs.

“This”, Dr Smuts said, “has continuously motivated the group to persevere in challenging and often under-resourced circumstances.”

 “Over a four-year period, 44 projects were undertaken, many with great success. Thirteen scholars participated in a pilot of CLASSE (Classroom Assessment of Student Engagement) in 2013. This survey, contextualised by staff from the Centre for Teaching and Learning, was a first in South Africa,” said Dr Smuts.

“The team undertook extensive literature reviews and attended numerous workshops on principles and practices of good teaching, research and writing. The two summarising booklets they prepared from two publications (How Learning Works: 7 Research-based Principles for Smart Teaching and Student Engagement Techniques) in 2013, will serve as guides and inspiration for the larger academic community of the UFS for many years.”

Since the formation of this team, TL scholars have presented 25 papers at 12 national and two international conferences.

“Taking into consideration that it is not easy to get an abstract accepted for presentation, these are impressive achievements,” Dr Smuts said.

“Some of the immediate results of scholars engaged in this project, include improved student success rates averaging 20% compared to only 8% improvement by academics who are not part of the project.”
 
“In 2013, one TL scholar reported student success rates that increased by 29%; another reported 80% on average; and another reported an increase from 65% to 95% in a class bigger than previous years.”

In congratulating the team, Centre for Teaching and Learning’s (CTL) Prof Annette Wilkinson said that she was very proud of the team.
 
“The team’s dedication and growth in scholarly practice – amidst challenging circumstances – are in my mind, the outstanding features of the project. I am very proud of the entire team”, said Prof Wilkinson.

The two presentations at international conferences were delivered by Ms Lea Koenig at the 32nd Annual Conference on the First-Year-Experience in Orlando, Florida and by Dr Elize Smuts in North Carolina. Both of these were presented in 2013.


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