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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

New SRC: Records of support and a victory for women

2014-09-04

Ms Mosa Leteane and Ms Louzanne Coetzee
Photo: Johan Roux

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While campuses across South Africa regularly report falling voter turnout in campus elections of student representatives, the University of the Free State, in its recently completed SRC elections, registered record levels of support across our campuses with a total voter turnout of 44%. At the Bloemfontein Campus 34,4% of students voted (5052 votes) and 53,3% (1583 votes) at the Qwaqwa Campus.

Also, for the first time under the new SRC constitution, students elected a woman to lead the student body – Ms Mosa Leteane was elected as President. Another first was the election of a blind woman to the SRC – Ms Louzanne Coetzee. She will be responsible for student accessibility of our Bloemfontein SRC. This marks a victory for women in student governance.

Mr Tulasizwe Sithole was elected as the President of the SRC at our Qwaqwa Campus.

The election of Ms Leteane as President underscores the progress achieved for gender equality with near half of her SRC consisting of women (48%).

These successes are all the more significant, since this is the 4th year of elections under newly adopted SRC constitutions that allow for broader participation of diverse student constituencies in student governance.

This means that the crucial 3-year mark to test a new approach and method in governance and elections was not only successfully reached, but also in its 4th year shows the constitution as one that sustains its impact to deepen democracy and citizenship among our 30,000-strong student body.

“The results of the SRC elections across campuses show that our students are not only ready to lead our campus communities on issues relating to justice, freedom and democracy beyond our societal legacies of race and gender, but do so also for the student movement nationally. We’re immensely proud of our students, who show courage and resilience to choose leaders not for expediency, but for significance, and to lead not for some, but for all”, the Dean of Student Affairs, Rudi Buys, said.

The Qwaqwa SRC was installed on 2 September 2014, while the Bloemfontein SRC will be installed on 5 September. The Central SRC will be established on 14 September by joint sitting of the two SRCs.

The SRC members 2014/15 at the Bloemfontein and Qwaqwa Campuses are as follows:

Bloemfontein Elective portfolios:
President: Ms Mosa Leteane
Vice Pres: Mr Waldo Staude
Secretary: Ms Dineo Motaung
Treasurer: Ms Maphenye Maditsi
Arts & Culture: Mr Stefan van der Westhuizen
Accessibility & Student Support: Ms Louzanne Coetzee
First Generation Students: Ms Mpho Khati
Media, Marketing & Liaison: Ms Lethabo Maebana
Legal & Constitutional Affairs: Mr Lindokuhle Ntuli
Sport: Ms Dominique de Gouveia
Student development & Environmental Affairs: Mr Victor Ngubeni
Transformation: Mr Tumelo Rapitsi

Bloemfontein Ex officio Portfolios
Dialogue & Ex officio: Associations Student Council: Mr Piet Thibane
Academic Affairs & Ex officio: Academic Affairs Student Council: Mr Jonathan Ruwanika
Residence Affairs & Ex officio: Campus Residences Student Council: Ms Melissa Taljaard
City student Affairs & Ex officio: Commuter Student Council: Ms Kerry-Beth Berry
Post graduate Affairs & Ex officio: Post Graduate Student Council: Ms Masabata Mokgesi
International Affairs & Ex officio: International Student Council: Mr Makate Maieane
Student Media Affairs & Ex officio: Student Media Council: Mr Samuel Phuti
RAG Community Service & Ex officio: RAG Fundraising Council: Mr Johan du Plessis
RAG Community Service & Ex officio: RAG Community Service Council: Mr Manfred Titus

Qwaqwa Elective portfolios:
President General: Mr Thulasizwe Sithole
Deputy President: Ms Zethu Mhlongo
Secretary General: Mr Vukani Ntuli
Treasurer General: Mr Langelihle Mbense
Media & Publicity: Ms Nongcebo Qwabe
Politics & Transformation: Ms Nkosiphile Zwane

Qwaqwa Ex officio Portfolios
Student Development & Environmental Affairs: Mr Ndumiso Memela
Academic Affairs: Mr Simon Mofekeng
Arts & Cultural Affairs: Ms Samkelo Mtshali
Off-Campus Students: Mr Khanyisani Mbatha
RAG, Community Service & Dialogue: Mr Njabulo Mabaso
Religious Affairs: Mr Mfundo Nxumalo
Residence & Catering Affairs: Ms Ntombifuthi Radebe
Sports Council: Mr Luvuno

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