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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

UFS has a contingency plan for load shedding
2008-02-13


The University of the Free State (UFS) has put in place a contingency plan to ensure that there is minimal disruption to the normal academic operations of its Main Campus in Bloemfontein whenever load shedding occurs.

The plan includes alternative arrangements for certain lectures that fall within the load-shedding schedule provided by Centlec, the emergency power generation for certain lecture halls and buildings, as well as the functioning of the UFS Sasol Library. This is in addition to emergency power equipment that has already been ordered for the larger lecture-hall complexes.

Fortunately, the Qwaqwa Campus has adequate emergency power generation capacity. The situation on the Vista Campus in Bloemfontein is being monitored, but the same guidelines will apply as on the Main Campus.

On the Main Campus in Bloemfontein the following alternative arrangements regarding the timetable for evening classes will come into effect when load shedding occurs:

  • An alternative module and venue timetable has been compiled so that classes that cannot take place on weekdays as a result of load shedding can be accommodated on Fridays and Saturdays.
  • Classes that are presented in the timeslot 18:10 to 21:00 on Thursdays are alternatively accommodated in the same venues at the same times on a Friday.
  • Classes that take place in the timeslot 20:10 to 22:00 on Wednesdays are alternatively accommodated in the timeslot 08:10 to 12:00 on Saturdays, in a few cases in different venues from those scheduled initially.
  • After consultation with students, lecturers will decide whether the alternative timetable will apply when load shedding does indeed occur or whether the alternative timetable will be a permanent arrangement.

Some other steps that have been taken regarding the functioning of lecture halls include:

  • The design and installation of emergency power equipment in all the large lecture-hall complexes within the next few months. This includes the Examination Centre, Flippie Groenewoud Building, the Stabilis and Genmin lecture halls.
  • The ordering of a larger generator for the Agriculture Building to simultaneously provide essential research equipment such as refrigerators, ovens and glasshouses with emergency power.
  • An investigation into the optimal utilisation of present emergency power installations.
    The purchasing of loose standing equipment such as battery lights, uninterruptible power supplies, loose-standing generators, etc.

The UFS Sasol Library will continue as normal as far as possible though there may be some minor changes as a result of load shedding. The library has an emergency generator that will be used in the event of load shedding to allow students and other users to exit the library. If load shedding occurs during daylight hours, the library will remain open with limited services. If the load shedding occurs after 6 pm (18:00), all users will be allowed to exit and the library will remain closed until the next day.

A comprehensive investigation into the university’s preparedness for and management of long term power interruptions is also receiving attention.

More information on the contingency plan for load shedding can be obtained from the UFS website at www.ufs.ac.za/loadshedding.

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
13 February 2008


 

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