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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

UFS hosts simulation workshop
2012-12-03

Photo: Renè-Jean van der Berg
3 December 2012

The University of the Free State’s School of Nursing, in partnership with the Drexel University’s College of Nursing & Health Profession in Philadelphia in the USA, are hosting a simulation workshop at the Bloemfontein Campus from Monday 26 November – Friday 30 November 2012. The presenters include Prof. Leland Rockstraw, Dr Linda Wilson, Ms Carol Okupniak and Mr John Cornele. These knowledgeable simulation experts run a successful simulation facility for  health-care profession students. Prof. Leland Rockstraw and Dr Linda Wilson have recently published a book on simulation; Ms Carol Okupniak writes a regular column in a journal, Clinical Simulation in Nursing and Mr John Cornele is well known in the USA for presenting exciting workshops on medical moulage. Moulage refers to “medical make-up”

Drexel University has offered this very popular workshop in simulation repeatedly since August 2010 at the Philadelphia Campus. This week’s workshop is the 1st international event and the first simulation training in South Africa. Funding from the Atlantic Philanthropies made it possible for the School of Nursing at the University of the Free State to host the workshop. Participants are educators from different health-care professions from higher educational institutions from most of the provinces in South Africa and from Botswana. The workshop will cover a comprehensive theoretical background of simulation in health professions, best practices and provide an opportunity for hands-on experience in human patient simulation (HPS) and standardized patient (SP). This will be a first for South Africa. Participants will gain insight in learning strategies to promote a clinically safe learning environment and promote adult experiential learning behaviours. 

During this workshop, participants will make use of the new high-fidelity technology in the Authentic Learning facility at the UFS’ School of Nursing.

According to Prof. Yvonne Botma from the UFS School of Nursing, this workshop will equip the health-care profession’s educators with skills to assist their students in linking theory and practice. Simulation will enable students in health care to provide safe patient care with confidence.
 

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