Latest News Archive

Please select Category, Year, and then Month to display items

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 talks directly to South African ambassador to Japan

2011-03-16

Direct conversation between the UFS and the South African ambassador to Japan
Photo: Gerda-Marie Viviers

During a direct conversation with the South African ambassador to Japan, Mr Gert Grobler, today, the University of the Free State (UFS) expressed its compassion and solidarity with the people of Japan. The university also stated that it intended to support the country and its citizens in various ways.

This came after Japan was plunged into chaos the past week as a result of various earthquakes and consequential disasters. Mr Grobler, who participated in the conversation via Skype from Tokyo, welcomed this talk initiative initiated by Mr Rudi Buys, Dean: Student Affairs, and the Interim Student Committee (ISC). The talks formed part of a series of initiatives launched by students to promote solidarity with Japan, and which includes fund-raising projects and awareness campaigns.

Mr Grobler expressed his appreciation for the initiative: “The initiative by the UFS is greatly appreciated, and I shall do anything to promote partnerships between the UFS and Japan, particularly in collaboration with the ambassador for Japan in South Africa. The solidarity project is essential, because this is the worst crisis Japan has ever experienced in its history.”

In solidarity with Japan, the Student Committee envisages a mass march on Thursday, 17 March 2011 by means of which students will declare their unanimity with Japan and their support of human rights.

Prof. Jonathan Jansen, UFS Vice-Chancellor and Rector, also promised to send a message of support directly to the Japanese embassy in Pretoria, as well as extending a hand of support to Japanese universities in order to become part of discussions on how to render assistance, while making plans for students to visit the respective countries and share their experiences first-hand.

Mr Buys informed the ambassador that the university would support the rescue teams, which are departing for Japan in response to a request by Mr Grobler, by means of manpower. In response to this, Mr Grobler, a Kovsie alumnus, welcomed this token of compassion and offer of assistance. “I am excited to see that South Africa cares so much for Japan.”

Media Release
15 March 2011
Issued by: Lacea Loader
Director: Strategic Communication
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept