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21 December 2020 | Story Andre Damons | Photo Supplied
The research team helps a giraffe to get up after they have finished collecting data.

Researchers from the University of the Free State (UFS) hope their research to investigate why some animals prefer or avoid some habitats, will also create awareness for the plight of giraffes which have lost more than 80% of some of their subspecies in East Africa and are facing extinction in the wild.

Dr Marietjie Schutte-Smith, Senior Lecturer in the Department of Chemistry, says the collaborative research being done in South Africa is very unique and could help save subspecies from the brink of extinction – as South Africa has managed to double its giraffe numbers whilst subspecies have declined tremendously.

Why some animals prefer or avoid some habitats

“By using modern analysis techniques and instruments (such as drones and GPS devices), it is possible to study complex environments on a spatial ecology scale and has created the opportunity to investigate why some animals prefer or avoid some habitats,” explains wildlife expert Dr Francois Deacon.

“This in turn opened the door to explore geographic, soil and nutritional qualities the giraffe might prefer or avoid. This is one of the main reasons we are exploring the different factors and driving forces behind a large herbivore’s habitat selection, well-being, body condition parameters and physiological adaptations,” Dr Deacon says.

Veld conditions, plant species composition, tree densities and other available resources such as production yield and water quality determine reproduction successes and how animals disperse, move and distribute over an area. Spatial and ecological distributions of giraffe specifically depend on habitat resources and qualities that in turn affect their complex behavioral tactics and survival.

Strange habits

The research was started back in 2010 by Dr Deacon and Prof Nico Smit from the Department of Animal, Wildlife and Grassland Sciences at the UFS with the pioneering of GPS devices to investigate giraffe spatial ecology and habitat use. The current study was initiated as to why the giraffe would utilise one area more than the other, even if the two habitats had the same tree species, says Dr Schutte-Smith.

Dr Deacon contacted Prof Hendrik Visser and Dr Schutte-Smith from the Department of Chemistry for a possible collaborative effort. Ms Jeaneme Kuhn started her MSc research degree on this project in January 2019 and completed her degree in August 2020 with distinction.

Dr Schutte-Smith says from research done at Rooipoort Nature Reserve it was found that a certain group of giraffes had the strange habit of only eating from specific trees, avoiding similar trees a few metres away. “We wanted to see if this behaviour was due to chemical influences, i.e. if there are specific minerals that are possibly in excess at some places which they avoid, especially since there are mines close by.”

Aim of the research

The main aim of this MSc Chemistry degree, according to Dr Schutte-Smith, is to validate an analytical method for testing leaves and soil samples, using IPC, to see if heavy metals (in excess) are present in the soil, leaves and water and whether this has an influence on the browsing pattern of the giraffes. “Then as secondary aims (for the collaborative effort) we would like to investigate if the giraffe can select one area above the other (core home ranges), to understand what the qualities are that they would select for in the preferred area and what the qualities they avoid are in the other. And lastly to understand what the minimum requirements are to keep the animals happy and healthy, but also to investigate how they search for these qualities,” says Dr Schutte-Smith.

Giraffe conservation

Besides creating awareness of the plight of giraffes, the researchers also aim to create a model for conservation via research and education to be used as an example for other countries. This model incorporates students, academia, professionals, sponsors and stakeholders that cover various topics relating to giraffe education, management and conservation.

They would also like to see the UFS as the institution that has contributed the most to giraffe conservation strategies in Africa by being the leading university in the collection and analysis of information about giraffes and their habitats, increasing conservation education awareness about giraffes and African biodiversity and to develop national and/or regional plans aimed at giraffe conservation.

The research team successfully applied for funding which they used for chemicals and solvents to perform testing as well as sampling.

News Archive

Student receives international award in microbiology
2008-01-24

A postgraduate student at the University of the Free State (UFS) received an exceptional honour last month when he received the first prize for his presentation in the Biochemistry and Industrial Mycology session of the Asian Mycology Congress (AMC) held in Malaysia.

Desmond Ncango (24), a Ph.D. student from the Department of Microbial, Biochemical and Food Biotechnology received the first prize for his presentation on the inhibitory effects of non-steroidal anti inflammatory drugs (NSAIDs) such as aspirin on fungi.

This suggests that commonly used aspirin may be used as a cheap antifungal to combat yeast infections. Desmond also exposed novel lubricants that are used by yeasts for water-propelled movement. This may find application in nanotechnology in the lubrication of nanorobots, which are manmade miniature machines, invisible to the naked eye, which may in future be used to combat diseases such as cancer.

The conference, which was attended by more than 300 representatives from 27 countries, is a platform for mycologists (who are experts in fungi) around the world to come together and share their knowledge and research. “Many interested researchers listened to my presentation and were impressed by the novelty and scientific depth of my work,” said Desmond.

“The presentation was selected as the best because of its novelty, academic depth as well as applicability. The meticulous preparation and presentation style also contributed to the success,” said Prof. Lodewyk Kock, head of the Lipid Biotechnology Group at the department and main promoter of Desmond’s Ph.D. studies.

“I cannot really explain the feeling when my presentation was selected as the best as it was presented in a very difficult category and many senior researchers and professors also participated. I plan to use all the knowledge and skills I have learnt from Prof. Kock, who is my role model, especially to the benefit of disadvantage communities in South Africa. I want to follow an academic career at a tertiary institution when I have completed my Ph.D. studies,” said Desmond.

Desmond went to school in Botshabelo, Bloemfontein and completed his Grade 12 in 2000 with a distinction in Mathematics. He enrolled for a B.Sc. degree at the UFS, majoring in Microbiology and Physiology. After obtaining this qualification, he joined the postgraduate research group of Prof. Kock. He completed his M.Sc. degree with distinction last year and was privileged to have this research published in and on the cover of the Canadian Journal of Microbiology, a journal accredited by the Institute for Scientific Information (ISI).

He was one of six postgraduate students from the Lipid Biotechnology Group who attended the AMC conference in Malaysia. The students’ attendance was funded by the South African Fryer Oil Initiative (SAFOI), which is housed in the UFS Department of Microbial, Biochemical and Food Biotechnology. This initiative, steered by Prof. Kock, currently monitors edible oils in the food industry in South Africa and makes a quality seal available to the manufacturers and distributors of these edible oils.

“SAFOI’s income is used to fund my own research on various kinds of oils (including yeast oils) to enable postgraduate students to attend international congresses and to partially fund international scientific symposia and congresses,” said Prof. Kock.

 

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za 
24 January 2008

 

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