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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 mourns the death of a great academic
2007-02-27

 

It is with great sadness that the management of the University of the Free State (UFS) heard of the death of Prof. Dawfré Roode.

Prof. Roode (70) was the first Registrar: Academics at the UFS. He retired in July 1997 and was living in Jeffrey’s Bay with his second wife, Daphne, for the past three years.

Prof Roode’s ties with the UFS stretch over more than fifty years. He registered at the UOFS in 1955 as first-year student and was elected as chairperson of the student representative council in 1958. He also represented the university on the cricket field and as Free State nineteen-year old in the Currie Cup. His academic career at the UOFS started in 1963 when he was appointed as lecturer in Sociology and Social Work. After completing his D Phil in 1964, he was promoted to senior lecturer in 1966. He became the first head of the Department of Sociology in 1972 and in 1989 he was appointed as Registrar: Academics and in 1989 Vice-Rector: Staff and Administration.

“Prof Roode brought professionalism to the administration that did not exist. He not only served the academe as registrar, but also established it as an important function within the UOFS. His ‘institutional memory’ about earlier decisions and events at the UOFS is also legendary,” said Prof Frederick Fourie, Rector and Vice-Chancellor at the UFS.

Prof Roode’s father, the late Prof Dawie Roode, was the first head of the Department of Music at the UFS. Prof Dawfré Roode had a love for music and was closely involved with the establishment of the Odeion String Quartet.

In October 2004 the university honoured him with a Centenary Medal for his outstanding leadership and contribution, as Registrar and Vice-Rector, to the development of the UFS by establishing and developing a strong and professional administrative structure at the UFS.

“Prof Roode left deep footprints at the UFS. I am glad that we could honour him for this in 2004 with a Centenary Medal before he passed away. He also attended the launch of the university’s history book earlier in February,” said Prof Fourie.

“Our sympathies go to Ms Trudie Roode (his first wife) and their three children Ms Frelet Roux and Gerda Daffue, and their son, Mr Dawie Roode. Prof Roode has left a gap in the hearts of the people who knew and worked with him at the UFS,” said Prof Fourie.

A memorial service will be held in Jeffrey’s Bay on Wednesday 28 February 2007 at 10:30. A memorial service will also be held in Bloemfontein on Wednesday 7 March 2007. More details will be made available at a later stage.
 

Media release
Issued by: Lacea Loader
Media Representative
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
27 February 2007

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