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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

Fundraising while having fun
2016-01-25

With the Receive And Give (RAG) Community Service processions and festival around the corner, the public can expect loads of festive fun for the whole family. 

Over the years, RAG has grown in popularity among the Bloemfontein community as the official launch of the social calendar. At the beginning of each year, the streets come alive with thousands of students from the University of the Free State and their colourful floats. They are joined by spectators from all over the city. 

Float building

The ‘Cartoons, Animation and children snacks’ theme for 2016, has kept first-year students and RAG representatives working tirelessly since 18 January 2016, building majestic floats that are sure to entice on-lookers.

Ritsim Magazine sales

The annual RAG publication, Ritsim, is now available for only R25 a copy. All proceeds are channelled into different charities across the country.

This year, in a joint venture between Kovsie RAG and Volksblad, approximately 8000 Ritsims will be sold as a package deal with all the newspapers in the Northern Cape and Free State. 

The processions

About 10 000 meals will be distributed to needy residents of the Heidedal and Mangaung communities at the Twin City mall after the morning procession.

Floats will be judged prior to the morning procession. The float winners will be announced at 17:00 at the RAG Farm, and the winners will lead the afternoon procession. 

Date: 30 January 2016 
Times: 10:00 (morning procession) and 18:00 (afternoon procession)
Route for morning procession: Pelonomi Hospital to Twin City mall
Route for evening procession: Tempe traffic light at Nelson Mandela Drive to Old Grey Sports Grounds

The festival 

After a day of chanting, collecting donations, and feeding the community, the RAG festival will round out the day with good music. Both young and old will be entertained by well-known and vibrant artists such as Vusi Mahlasela, Karen Zoid, and Francois van Coke.

Date: 30 January 2016
Time: Gates open at 16:00
Place: Old Grey Sports Grounds

Tickets are available from Computicket and at the gate for R100 per person and R50 per student or children under 12 years of age.

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