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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 receives record number of applications

2011-12-31

The University of the Free State (UFS) is looking forward to the start of the new academic year in January 2012, when thousands of new students will be joining the Kovsie family.

The UFS received almost 13 000 applications for studies in 2012. This is an increase of about 80% compared to the total number of applications received in 2010 for studies in 2011.

This increase is partly attributed to the university’s new method in approaching prospective students and the marketing initiatives followed during 2011. These included visits to various schools in the country by the Vice-Chancellor and Rector, Prof. Jonathan Jansen.

“This shows that the UFS is becoming a preferred place of study. Unfortunately, we can only take in about 4 000 first-years from these applications. We will, of course, choose the best and most diverse class of students,” says Prof. Jansen.

The university’s marketing initiatives will be intensified next year where students will take part as ambassadors in the university’s student recruitment campaigns for 2013.

Mr.Rudi Buys, The Dean of Student Affairs at the UFS, says Prof. Jansen’s visit to various schools in the country was very successful. This will be continued in 2012 and student leaders from residences, associations as well as the Student Representative Council will accompany him on these visits during the course of the year.

“These learners, just like our students, are part of a new generation of new democratic South Africans. Our students are excellent examples of youth leadership in the country and we are very excited about all our initiatives,” Mr Buys said.

The UFS is aware of the fact that learners will only receive their final Grade 12 results in January 2012. Final admission will therefore only be granted upon the submission of a certified copy of the matriculation results. Fax these results to 086 586 8947 or e-mail to applications@ufs.ac.za as soon as it is available.

Important dates for Bloemfontein students

Friday and Saturday 13 & 14 January 2012: Welcoming of new first-years
Sunday 15 January: Gateway College life programme (Bloemfontein edition) begins)
Monday 16 January 2012: Registration starts

Important dates for Qwaqwa students

Thursday 12 January 2012: Arrival of first-years
Friday 13 January 2012: Gateway College Life programme (Qwaqwa edition) begins.
Monday 16 January 2012: Registration starts

For more information, Bloemfontein students can contact Student Affairs at 051 401 9102 or send an e-mail to Cornelia Faasen at faasenc@ufs.ac.za . Qwaqwa students can contact Dulcie Malimabe at 058 718 5018 or send an e-mail to malimabedp@qwa.ufs.ac.za

Media Release
Issued by: Lacea Loader
Director: Strategic Communication
Telephone: +27 (0) 51 401 2584
+27 (0) 83 645 2454
E-mail: news@ufs.ac.za
Fax: +27 (0) 51 444 6393
Web: www.ufs.ac.za

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