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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

Kovsies reign FNB Superbowl

2007-05-10

The FNB Super Bowl took place from 26 – 30 April in Potchefstroom.

The Kovsies reigned the tournament in their respective categories.

It was an absolute mega Intervarsity. The following tournaments took place in which Kovsies was represented.

Senior rugby tournament

The Shimlas won their first game against TUT 33-0

In the Semi-final Shimlas lost against Pukke 17-8.

The Shimlas played for third and fourth place against Tukkies and won the game 41-19. Which secured them the third place in the tournament.

The following teams participated in the tournament

Pukke, UJ, Shimlas, Tukkies, Maties, NMMU, TUT, UCT

SA Students team

The following Shimlas were selected for the SA student games:

Steph Roberts (prop)

Drikus Strydom (hooker)

Philip Steyn (lock)

Marlin Ruiters (Scrumhalf)

Marcel du Toit (flyhalf)

Pharmaton Junior Rugby Tournament

The Kovsies u/21 & u/19 teams won their respective tournaments. It is a wonderful accomplishment for the University. The following teams took part in the tournament: Kovsies, Pukke, Tukkies and UJ.

u/21 results

Won Pukke 12-11

Won UJ 22-18

Won Tukkies 47-16

u/19 results

Won UJ 9-8

Won Pukke 25-13

Won Tukkies 25-16

Hostel Rugby Tournament

Reitz and Armentum represented Kovsies. These two teams played against each other in the final which Reitz won 47-0. To have both our hostel teams in the final is an outstanding accomplishment for Kovsies.

The following Universities took park: Kovsies, Pukke, Tukkies and UJ

Reitz results

Won Sonop (UJ): 27-7

Won Patria (Pukke): 11-10

Bastion (Tukkies): withdraw

Won Armentum in the final: 47-0

Armentum results

Won Overs (Pukke): 15-7

Won Afslaan: 49-12

Won Boekenhout: 43-0

Lost against Reitz in the final: 47-0

Hostel Soccer

Veritas represented Kovsies and won Kiaat from Tukkies in the final with 3-1 after a penalty shoot-out.

Hostel Netball

Vergeet-my-nie and Emily Hobhouse represented Kovsies. Vergeet-my-nie lost in the final against Wanda from Pukke17-14.

Hostel Cricket

Vishuis lost in the final against Villagers from Pukke with 5 wickets.

Hostel Hockey

Wag-‘n-Bietjie and Vergeet-my-nie represented Kovsies. Unfortunetly none of them went through to the finals.

We won most of the games against the strongest Universities in the country is an outstanding accomplishment for Kovsies.

Compiled by

Ansu Colditz

Rugby Manager

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