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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

Central SRC constitution for UFS approved by Council

2005-07-20

University of the Free State Fact Sheet

1. The Council of the University of the Free State (UFS) on 10 June 2005 unanimously approved the establishment of a Central Student Representative Council (CSRC) to constitute a legitimate basis for the democratic participation of students of all three of its campuses in the governance of the university.

2. In a major breakthrough and transformation step for student governance, the Central SRC will include representatives of the main campus in Bloemfontein, the Vista Bloemfontein campus and the Qwaqwa campus of the UFS.

3. The need to establish the Central SRC follows the incorporation of the Qwaqwa campus into the UFS in January 2003 and the incorporation of the Vista campus in Bloemfontein into the UFS in January 2004.

4. The constitution of the Central SRC is the outcome of a consensus reached during a lengthy process of negotiation between the SRCs of the three UFS campuses, indirectly involving diverse student formations such as Sasco, ANCYL, YCL, Pasma, SASO, SADESMO, AZASCO, SCO, HEREXVII, KovsieAlliance, ACDP, etc. Independent constitutional and political experts facilitated key parts of the negotiation process.

5. In this process, the UFS management went out of its way to ensure the participation of all student formations, especially Sasco and the ANC Youth League, as well as the duly elected SRC officials of the three campuses.

6. With the establishment of a Central SRC, the UFS has adopted a federal student governance model whereby the CSRC is the highest representative student body on matters of common concern for all students. The three campuses of the UFS will retain SRC structures for each campus with powers and responsibilities for matters affecting the particular campus.

7. The central SRC will have 12 members made up of delegates of the different campus SRCs, including the presidents of these three SRCs. In total, the main campus will have 5 representatives, the Qwaqwa campus will have 4 representatives and the Vista campus will have 3 representatives. This ratio ensures a strong voice for the smaller campuses in the central SRC.

8. This arrangement will be reviewed after a year to make allowance for the phasing out of undergraduate (pipeline) students at the Vista campus, as was agreed in the negotiations preceding the incorporation of that campus into the UFS.

9. From these 12 members a central SRC president will be chosen on a quarterly basis to represent the general student body at Executive Management, Senate and Council.

10. The historic official inauguration of the first Central SRC is scheduled to take place in early August 2005.

11. This event, like the adoption of a broadly negotiated new constitution for the main campus SRC, represents a breakthrough in that all three campus SRCs delegations and all relevant student organizations have been part of the process and have accepted the outcome of the process.

20 July 2005

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