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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

Odeion: The Fortepiano in the late 18 th century - A lecture recital by John Reid Coulter, Monday, 27 October 2008
2008-10-01

The Fortepiano in the late 18 th century - A lecture recital by John Reid Coulter
Monday, 27 October 2008
Odeion
19:30


with
Deirdré Blignaut ~ soprano
Carmi Nel ~ violin
Piet van Rooyen ~ violoncello
Nicol Viljoen ~ fortepiano

including songs & solos by
W.A. Mozart, F.J. Haydn, C.P.E. Bach
& four Scottish & Irish folk song arrangements
by L. van Beethoven

John Reid Coulter is one South Africa’s leading exponents of historical performance practice. He completed his studies in harpsichord with Jacques Ogg at the Royal Conservatory in The Hague. He has taught at the universities of Potchefstroom, Witwatersrand and Pretoria. John has an avid interest in the building of early keyboard instruments and has built a number of harpsichords and a fortepiano. He has performed as soloist and continuo player in The Netherlands, Norway and Germany. His baroque ensemble ‘Banda di Giovanni’ has premiered a number of works in South Africa, the most recent being the cantata ‘Apollo e Dafne’ by G.F. Handel in 2004 and the Serenata à tre ‘Mio cor, povero cor’ by Antonio Vivaldi in May 2007. John is also well known as an adjudicator at music festivals and as a composer has won numerous awards.

Deirdré Blignaut obtained a BA (Languages) degree from the University of the North West in 1988. She graduated cum laude and was awarded Best Student, Faculty of Arts. She began her career as translator at Transnet and later joined the Department of Arts and Culture as terminologist. In 1995 music become her full-time career and field of study. She studied singing with Prof Werner Nel until 2000 and repertoire with the late Anna Bender currently she studies with Eugenie Chopin. In 2002 she obtained a Performer’s Licentiate cum laude and was invited to participate in the Unisa International Bursary Competition. Deirdre is currently she is working towards a MMus (Performing Arts) through the University of Pretoria. She teaches voice at Pro Arte Alphen Park, lectures Methodology of Singing at the University of Pretoria and was recently appointed voice lecturer at the School of Music, North West University.

The fortepiano used in the concert was built by John Reid Coulter in 1986 and is a copy of a Stein fortepiano ca. 1780.

Admission: Free

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