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Students hear from textbook writer about conservation genetics

02 August 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs

Genetics lecture — 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 serious about safe campuses

2011-02-09

Mr Willie Frankim, Head of Protection Services at the UFS, in the new control room on the Main Campus.
- Photo: Dries Myburgh

The University of the Free State (UFS) officially launched its security control room recently. This new addition to the university's infrastructure, which was implemented in December 2010, has already made a contribution to the combating of crime at the UFS.

The decrease in crime statistics for January this year (5 cases), in comparison to the statistics of January 2010 (51 cases) is proof that the UFS’s new approach to combating crime on campus has an impact.

According to Prof. Niel Viljoen, Vice-Rector: Operations, the safety of students, lecturers and staff of the UFS is of the utmost importancet. For this reason, it is continuously reflected on about what can be done to improve the levels of safety for the respective campuses.

Apart from the upgraded security control room, from where, amongst others, residences, pedestrian routes, campus buildings, parking areas, entrances at gates and computer rooms at residences are observed, a number of measures have been set in place to improve the task of combating crime.

These measures include:

- Security cameras in front of all the women’s residences. The UFS is in the process of also installing
security cameras in front of the men’s residences.

- Shrubs and trees that caused obstruction in front of cameras have been pruned.

- Security officers patrol the pedestrian routes as well as the Red Square on foot from 06:00-22:00.

- A security officer has been appointed at each residence to be on duty from 18:00 to 06:00
at the residence.

- Two vehicles patrol the Main Campus on a 24-hour basis.

- The UFS is in die process to install alarms, which will be linked to the central security control room,
in all buildings.

- In certain buildings panic buttons have been installed in strategic places.

- Where possible, better entrance control to building, especially office blocks, has been implemented.

-       Better management and integration of the security workers who are contracted from outside.
        More security workers have also been appointed to do duty at each residence as well as on the
        pedestrian routes (during the hours indicated).

- A survey has once again been done of all “dark spots” on the campus and better lighting is
currently being installed.

The reduced reaction times are a direct result of the operational process between security staff in the control room with met security staff that patrols the campus on foot and by vehicle

Media Release
09 February 2011
Issued by: Lacea Loader
Director: Strategic Communication (actg)
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

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