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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

UFS Sasol Library will reopen tomorrow
2007-10-17

The University of the Free State’s (UFS) UFS Sasol Library will reopen again tomorrow (Thursday, 18 October 2007) after a limited fire broke out earlier this morning.

The fire broke out at 05:00 on a work site of a contractor that is carrying out maintenance on the library’s air conditioning system in the machinery room underneath the library.

Employees of the subcontractor were busy replacing the isolation of the air-conditioning when the fire broke out. An employee of the contractor died and one was seriously injured.

The contractor is working on the system at night in order to minimise disruption to library users. The building and books were not damaged.

“The UFS and the contractor exercised strict safety measures before the maintenance project commenced and regular safety training sessions are still presented to employees of the contractor working on the site. The latest training session was done on Monday, 15 October 2007,” said Ms Edma Pelzer, Director of Physical Resources at the UFS.

As a precautionary measure, the library will be closed for the rest of today because of the possible presence of fumes in the building as a result of the fire. A decision was taken to be cautious and to make sure that the air is clean before people are allowed in the library.

The Reitz Dining Hall of the Centenary Complex is available as a temporary study facility for students until 18:00 today. The library will be open again tomorrow (Thursday, 18 October 2007) during normal hours.

Ms Pelzer conveyed her sympathy to the next of kin of the person who died during the fire.

Media Release
Issued by: Lacea Loader
Media Representative
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
17 October 2007
 

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