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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

Diversity gains ground in SRC election
2005-08-19

 

The University of the Free State (UFS) reached another milestone in its transformation process last night (Tuesday 16 August 2005) when a more diverse group of students than ever before were elected to serve on the Main Campus SRC.  

In addition to this, the UFS experienced a smooth and problem-free election process – unlike recent years when the Main Campus SRC elections were frequently disrupted or marred by attempts of intimidation or obstruction.

The election took place on Monday 15 August 2005 and the results were announced last night (Tuesday 16 August 2005) by Dr Ezekiel Moraka, Vice-Rector:  Student Affairs at the UFS.

Seven black students are to serve on the Main Campus SRC, the highest number of black students ever to be elected on the Main Campus SRC since black students were admitted to the UFS in the late 1980’s. 

Nine of the 18 SRC members were directly elected and nine on the basis of proportional representation (PR).   The PR system was introduced after amendments to the constitution of the Main Campus SRC were approved by the UFS Council in June 2005. 

According to Dr Moraka the elections on the Main Campus were a resounding success.  “We received double the amount of votes this year: A total of 4 846 votes were cast, while 396 votes were spoilt.  Last year only 2 192 votes were cast,” said Dr Moraka.

Dr Moraka said that there were no disruptions of the process and no objections regarding the voting process were received.

Mr Graeme Bradley, thirdyear student in B Com Human Resource Management, was elected as SRC President of the Main Campus for 2005/2006.  Mr Bradley was SRC representative for Sports, Arts and Culture in 2004/2005.

In the PR section of the election, Here XVII (with 36,1% of  the vote) and Sasco (with 36% of the vote) received an equal amount of seats (3) for the SRC.  These percentages also provided them with fourteen (14) seats for the Student Parliament, which consists of 40 seats. 

“This outcome is significant to us as, for the first time we have a clear indication of what the actual support of these affiliated organisations is on campus,” said Dr Moraka.  


Media release

Issued by:  Lacea Loader
   Media Representative
   Tel:  (051) 401-2584
   Cell:  083 645 2454
   E-mail:  loaderl.stg@mail.uovs.ac.za

17 August 2005
 

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