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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

Campus-wide poll to determine preferences among current staff and students for language models

2015-10-20

Language poll postponed until Thursday 22 October 2015

Due to the closing down of all UFS campuses on Wednesday 21 October 2015, the language poll has been postponed until Thursday 22 October 2015.

Invitation to take part in a campus-wide poll to determine preferences among current staff and students for language models.

As mandated by the Council on 5 June 2015, the senior leadership of the University of the Free State (UFS) has committed itself to a formal review process of the current language policy through a comprehensive process of consultation with all university stakeholders.

Since 19 August 2015, the following public sessions have taken place across all three campuses:

Public dialogue for staff and students, Qwaqwa Campus, 19 August 2015
Staff submissions, Bloemfontein Campus, 20 August 2015
External stakeholder submissions, Bloemfontein Campus, 24 August 2015
Public dialogue for staff and students, South Campus, 26 August 2015
Alumni submissions, Bloemfontein Campus, 27 August 2015
Expert panel discussion for staff and students with Q&A, Bloemfontein Campus, 31 August 2015
Staff, students, and external stakeholder submissions, Qwaqwa Campus, 9 September 2015
Panel discussion and public dialogue for students, Bloemfontein Campus, 10 September 2015
Expert panel discussion for staff and students with Q&A, Bloemfontein Campus, 11 September 2015
Student submissions, Bloemfontein Campus, 15 September 2015
Staff and student submissions, South Campus, 16 September 2015
Convocation submissions, Bloemfontein Campus, 30 September 2015

Further, written and online submissions from the entire university community were put forward until 18 September 2015, while the Convocation had until 30 September 2015 to submit. During the process, the Language Committee has met weekly and discussed the viability, benefits and challenges of various language model options, taking into account institutional, regional, national and global concerns, documents and information.

Following the university’s commitment to open, democratic practice, the UFS calls upon all its current staff and students to participate in a campus-wide poll in order to assist the Language Committee in determining possible preferences among current staff and students for language models. The possible models have emerged from the broad consultation process.

Please note that the campus-wide poll is NOT a formal voting process or referendum and will form only one part of many deciding factors that will be referred to the UFS Council on 20 November 2015 for their deliberations regarding the future of the language policy at the UFS. The poll, conducted by the Independent Electoral Commission (IEC), will be indicative of the preferences of staff and students for possible language model options, with specific focus on language of instruction.

The poll will take place at the following venues from 21-28 October 2015, 08:00-16:30, including the weekend:

Bloemfontein Campus: Kestell Residence Gazellie

Qwaqwa Campus: VIP Lounge

South Campus: Conference Hall

To take part in the polling, a valid staff or student card must be produced. Polling will take place on the basis of one poll per current staff member/student.

We look forward to your participation in the poll and hereby thank the entire university community for their ongoing interest and responsible engagement with the review process.

For inquiries send an email to language@ufs.ac.za or call 051 401 3422051 401 3422.

The UFS Language Committee

Click here for the question and answer page.

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