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Curiosity about environmental changes drives Dr Katlego Mashiane’s PhD research

21 April 2023 | Story Leonie Bolleurs | Photo Supplied

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

UFS council elects Nwaila and Hancke

2005-03-15

Dr Charles Nwaila, Superintendent-General of Education in the Free State, was elected Vice-chairperson of the UFS Council and Judge Faan Hancke was re-elected as Chairperson today.

According to the Rector and Vice-Chancellor, Prof Frederick Fourie, the election of Dr Nwaila is an important achievement for the UFS as Dr Nwaila is a well known leader in education in the Free State.

Dr Nwaila pledged to work constructively with the UFS council and management to ensure that the UFS benefits all people of the province and the country.

The appointments are valid for a term of three years from 1 June 2005 to 31 May 2008.

The elections took place at the quarterly meeting of the UFS Council where a number of other key transformation steps were approved.

The Council approved a Strategic Plan for the UFS which reflects a renewed focus on transformation of the institution, calling it an important roadmap for the future of the UFS.

According to Prof Fourie, the Strategic Plan tried strike a balance between continuity and change, addressing the need to remain an excellent university in an ever-changing context and environment.

Prof Fourie said transformation had many aspects and dimensions and could not be reduced to an issue of numbers.

The Strategic Plan identifies five strategic priorities and corresponding challenges in the next phase of transformation.

The priorities are:

quality and excellence
equity, diversity and redress
financial sustainability
regional co-operation and engagement.
outward thrust

Prof Fourie said that besides the five strategic priorities the plan also reflected concrete actions and interventions to address them.

He said the renewed focus on transformation is embedded in the priorities and specific actions that are identified.

The Council congratulated the management for the roadmap and for the achievements that have already been achieved in terms of transformation.

In order to draft a comprehensive Transformation Plan that will give substance to certain aspects of the UFS Strategic plan – or roadmap – the Council approved the establishment of a Transformation Plan Team.

The team will consist of about 16 people, which includes the two coordinators, Prof Teuns Verschoor, Vice-Rector: Academic Operations, and Dr Ezekiel Moraka, Vice-Rector: Student Affairs.

According to Prof Verschoor, the team was chosen and approved by the Executive Management earlier for the individual contributions that they could make.

While the individuals do not represent particular constituencies on campus they are a very diverse group of persons in terms of race, gender and various sections of the campus and the satellite campuses.

Prof Fourie, said there was an urgency and importance attached to the work of the Transformation Plan Team.

He said that while the team must produce a plan within a tight deadline, the task must be carried out very well, which could mean different stages in the work of the team.

According to the Rector, the UFS must take the lead in best practice transformation, while not underestimating the complexity of the issues facing the UFS.

The full list of names will be finalized soon.

MEDIA RELEASE
Issued by: Mnr Anton Fisher
Director: Strategic Communication
Cel: 072 207 8334
Tel: (051) 401-2749
11 Maart 2005

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