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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

New SRC constitution for UFS main campus agreed upon by all organisations

2005-07-20

University of the Free State Fact Sheet

1. The Council of the University of the Free State (UFS) unanimously approved an amendment to the SRC constitution for the main campus to allow for the introduction of proportional representation (PR) alongside a first-past-the-post electoral system.

2. This decision was taken by the UFS Council on 10 June 2005 at the same meeting where it also approved the establishment of a Central SRC for the three campuses of the UFS.

3. The new main campus SRC constitution is the result of consensus reached during a lengthy negotiation process involving diverse student formations such as Sasco, the ANC Youth League, the Young Communist League, the ACDP, HEREXVII, KovsieAlliance, as well as the democratically elected SRC members of the main campus. Independent persons such as Mr Jack Klaas and Mr Kobus van Loggerenberg facilitated the negotiation process.

4. The consensus reached during this process, and the subsequent decision by Council, represent a major breakthrough for student governance and transformation of the UFS main campus and constitutes a legitimate basis for the democratic participation of all students at the UFS main campus in the governance of the university.

5. The introduction of the proportional representation system follows earlier calls by some student formations, notably Sasco and the ANC Youth League, for such a system to be introduced at the UFS main campus in Bloemfontein.

6. In terms of the amendments to the main campus SRC constitution, nine of the 18 SRC members are to elected by means of proportional representation and nine on the basis of an direct, first-past-the-post election.

7. The following portfolios of the main campus SRC will be contested by individual candidates on the basis of “first past the post”:
• president
• secretary
• academic affairs
• legal and constitutional affairs
• student development
• arts and culture
• men’s internal liaison
• ladies internal liaison
• media, marketing and liaison

8. The following nine portfolios will be contested by affiliated organizations on a proportional representation basis.
• two vice-presidents
• treasurer
• dialogue and associations
• transformation
• campus affairs and recreation
• sport
• international affairs
• community service

9. These two decisions regarding student governance represent a breakthrough in that, for the first time in many years, all SRC constitutional changes were processed and approved by the June meeting of the Council, well in time for the scheduled August SRC election; in addition, all relevant student organizations have been part of the process and all have accepted the outcome of the process.

20 July 2005

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