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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Dr Katlego Mashiane
Striving to make a difference in the field of biodiversity conservation, Dr Katlego Mashiane decided to pursue a PhD in Geography, focusing on the spatial modelling of grassland diversity and nutrients in subalpine environments. He received his PhD during the recent April graduation ceremonies on the Qwaqwa Campus.

In the small village of Ga-Mabotia about 25 km outside of Polokwane, Dr Katlego Mashiane grew up, surrounded by rocky mountains characterised by boulder outcrops, where he interacted with nature from an early age. 

He recently obtained his PhD, majoring in Geography, from the University of the Free State (UFS), which was conferred on him during the April graduation ceremonies that took place on the UFS Qwaqwa Campus. The title of his dissertation is Grass nutrients estimation as an Indicator of rangeland quality using satellite remote.

Predicting the presence of biodiversity and nutrients in an area

Based on the principle that diverse grasslands tend to perform better, environmental changes threaten the resilience and services these grassland ecosystems provide. The study examined how many different types of plants and animals can be found at a particular place to enhance our understanding of the ecosystem’s value to humans, and that biodiversity loss will reduce these ecosystem services. Focusing on spatial modelling of grassland diversity, Dr Mashiane specifically investigated the influence of topography and remotely sensed satellite data on species richness and diversity in subalpine environments, and how they are affected by the availability of grass species. To determine this, he used a random forest machine-learning algorithm to find the best information in the data that could be used to estimate the levels of species richness, diversity, and nitrogen in a protected national conservation park. 

His study discovered that some data types – such as the near-infrared variable and certain vegetation data (EVI and SAVI) – were especially useful for determining the number and variety of species in a certain area. With this information, scientists can create models that predict the presence of different types of biodiversity and nutrients in an area.

Playing a key role in protecting our natural assets

Equipped with this knowledge, one will be able to understand how to protect and preserve different types of biodiversity and promote the nutritional value of both plants and animals in the environment. “Land managers could use this information for conservation strategies,” states Dr Mashiane, who decided to pursue this study because he was curious about how environmental changes will affect species.

“Grasslands provide important ecosystem services underpinning human well-being, and therefore warrant our protection; I would like to play a role in protecting our natural assets and contribute to understanding our biomes, especially in the context of global change,” he says.

In the next five years, Dr Mashiane plans to pursue further research and mentor other students in his field of study.

News Archive

Council concerned over health crisis
2009-06-08

The Council of the University of the Free State (UFS) has come out in support of doctors and health professionals attached to its Faculty of Health Sciences who expressed their concerns about the health crisis in the Free State.

At its meeting on Friday, 5 June 2009 the Council said it shared the concerns of health professionals that the quality of patient care and the quality of training being provided at the health faculties across the country are being compromised.

Earlier last week doctors and other health professionals of the UFS Faculty of Health Sciences issued a statement highlighting the seriousness of the crisis in health care provision in the Free State Province, warning that the system was on the verge of collapse.

According to the Council of the UFS, a petition will be addressed to the Minister of Health and the Minister of Education calling for urgent steps to be taken to correct the deteriorating situation in the province’s health care system.

In other decisions, the UFS Council also decided to confer an honorary doctorate on Judge Louis Harms, the Deputy President of the Supreme Court of Appeal in Bloemfontein.

Judge Harms is an international specialist in the field of Intellectual Property Law and has been actively involved in legislation and international agreements on intellectual property law, including the Designs Act, Trademarks Act and Patents and Copyrights Acts.

The motivation quotes one of his fellow jurists as saying that: “Harms is one of the greatest South African lawyers of the last 50 years. He is an intellectual giant who has made an impressive and profound contribution to the development of South African law: He is erudite, visionary, astute and principled.”

An honorary doctorate will also be conferred on geologist and expert on the geology of the Karoo Supergroup, Mr Johan Loock, for his distinguished efforts towards promoting the earth sciences and specifically geology, particularly in the context of the Free State.

Mr Loock has had two Karoo fossils named after him, which is a particular honour in the scientific world of palaeontology. He was employed by the UFS for 32 years and has close ties with the Free State in terms of his wide field of research interests.

The motivation further states that “the man affectionately and respectfully known as Oom Loock, or Malome, has selflessly given of his vast knowledge, expertise and insights into the physical and cultural heritage of the Free State to all who would learn from, and with, him”.

A Council Medal will be awarded to Prof. Johan Grobbelaar from the Department of Plant Sciences at the UFS. During his time at the UFS he has been a pioneer in many areas, including the first research expedition to Marion Island, the first PhD about research on Marion Island, the establishment of the Institute of Environmental Sciences as well as the establishment of the Centre for Environmental Management.

Council also decided to refer a report from the iGubu consultants regarding aspects of diversity in student residences to the Executive Committee of the Council so that the benefit of the participation of the rector-designate Prof Jonathan Jansen could be obtained and for further participation and consultation with relevant stakeholders.

In another decision the Council also extended the term of appointment of Prof. Tienie Crous as Dean: Economic and Management Sciences for an additional term of five years.

The Council furthermore appointed Prof. Hugh Patterton as the director of the strategic academic cluster dealing with advanced biomolecular research and Prof. Wijnand Swart as Director of the strategic academic cluster dealing with technologies for sustainable crop industries in semi-arid regions.

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