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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

Game farming a lens to analyse challenges facing democratic SA – Dr Kamuti
2017-05-30

 Description: Dr Kamuti Tags: Dr Kamuti

Dr Tariro Kamuti, Postdoctoral Fellow at the Centre
for Africa Studies at the University of the Free State.
Photo: Rulanzen Martin

One of the challenges facing South Africa’s developing game farming policy is the fractured state in the governance of the private game farming sector, says Dr Tariro Kamuti.

Dr Kamuti, a Postdoctoral Research Fellow at the Centre for Africa Studies (CAS) at the University of the Free State (UFS), was presenting a seminar on Wednesday 17 May 2017 under the topic, Private Wildlife Governance in a Context of Radical Uncertainty: Challenges of South Africa’s Developing Game Farming Policy, which takes material from his PhD. He received his PhD from both the Vrije University in Amsterdam and the UFS in 2016.

His presentation explored how the private game industry positions itself in accordance with existing agricultural and environmental regulations. It also investigated the state’s response to the challenge of competing needs over land and wildlife resources which is posed by the gaming sector. “The transformation of the institutional processes mediating governance of the private game farming sector has been a long and enduring arrangement emerging organically over time,” Dr Kamuti said.

Game farming links wildlife and agricultural sectors
“I decided on this topic to highlight that game farming links the wildlife sector (associated with conservation and tourism) and the agricultural sector. Both make use of land whose resources need to be sustainably utilised to meet a broad spectrum of needs for the diverse South African population.

“The continuous skewed ownership of land post-1994 justifies questioning of the role of the state in confronting challenges of social justice and transformation within the economy.”

“Game farming can thus be viewed as a lens through which to study the broad challenges facing a democratic South Africa, and to interrogate the regulatory and policy framework in the agricultural and wildlife sectors at their interface,” Dr Kamuti said.

Challenges facing game farming policies

The state alone does not apply itself to the regulation of private gaming as a sector. “There is no clear direction on the position of private game farming at the interface of environmental and agricultural regulations, hence game farmers take advantage of loopholes in these institutional arrangements to forge ahead,” Dr Kamuti said.

He further went on to say that the state lacked a coherent plan for the South African countryside, “as shown by the outstanding land restitution and labour tenant claims on privately owned land earmarked for wildlife production”.

The South African government was confronted with a context in which the status quo of the prosperity of the middle classes under neoliberal policies was pitted against the urgent need to improve the material well-being of the majority poor.  Unless such issues were addressed, this necessarily undermined democracy as a participatory social force, Dr Kamuti said.

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