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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

Nigeria’s Boko Haram: Why negotiations are not an option
2014-10-23



There has been much speculation if the recently announced ceasefire in Nigeria as well as talks with Boko Haram will indeed secure the release of about 200 girls kidnapped by this religious militant group.

Talks already started between the government and Boko Haram but there are still doubts if the girls will be freed and if the Nigerian government can successfully negotiate with Boko Haram. Prof Hussein Solomon, Senior Professor at the University of the Free State, regards this current negotiations as a terrible idea.

“At a time when Boko Haram’s strength is escalating, the correlatory weakness of the Nigerian government is increasingly exposed. As Nigerians prepare for the next presidential elections, embattled President Goodluck Jonathan is increasingly desperate to negotiate with Boko Haram to secure the release of schoolgirls seized by the terrorists earlier this year and to negotiate a ceasefire. This is a terrible idea. It makes a mockery of the rule of law and of the thousands of innocent victims of the militant violence. More importantly, it will only serve to fuel the terrorists’ ambitions further as the powerlessness of the government is exposed.”

Prof Solomon says religious intolerance is on the rise on the African continent, with a concomitant rise in terrorist incidents. In Algeria, extremist terrorism carries the name of Jund al Khilafah or Caliphate Soldiers in Algeria. In Mali it is Ansar Dine or Defenders of the Faith. In Somalia it is Al Shabaab (The Youth). But none of these organisations come close to the carnage wrought by Nigeria’s Boko Haram (literally meaning Western education is forbidden).

Boko Haram has carried out more than 1 000 attacks since 2010, which has resulted in the deaths of 10 000 people and a further 6 million affected by this terrorist violence. The 300 000 Nigerian refugees who have fled this tsunami of terrorism and have sought refuge in neighbouring Cameroon, Chad and Niger, provide adequate testimony to the human costs of such terrorism. Boko Haram, meanwhile, has formed tactical alliances with Al Qaeda in the Islamic Maghreb, Al Shabaab and the Islamic State in Iraq and Syria (ISIS), which means that the groups are sharing intelligence, tactics and material support. This cooperation has also resulted in increasingly sophisticated terror attacks mounted by Boko Haram.

Read more about Prof Solomon and his research.


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