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ARU pioneering mountain range-expanding project

26 July 2021 | Story Nonsindiso Qwabe | Photo Nonsindiso Qwabe

ARU Read more web — On top of the Drakensberg. The ARU and Witsieshoek Mountain Lodge research team are, from the left: Grant Martin, Dr Ralph Clark, Jan van Niekerk, Prof Aliza le Roux, Prof Peter Taylor, and Dr Sandy Steenhuisen.

All mountains around the world have native and non-native species that are expanding their ranges quite dramatically; however, little research has been conducted towards understanding the long-term redistribution of species and the effects of global change on biodiversity.

The Afromontane Research Unit (ARU) on the University of the Free State Qwaqwa Campus – as part of the Mountain Invasion Research Network – has secured a two-year EU Horizon 2020 project under the Department of Science and Innovation, which will be looking at the mechanisms underlying the success and impact of range-expanding species on biodiversity and ecosystem functioning.

On Monday 19 July 2021, the ARU took a few of its researchers on a scenic helicopter ride to the summit of the Drakensberg for an alpine field-experiment site inspection of the Mont-aux-Sources peak, one of the highest sections of the Drakensberg range. This site has been identified for the project which the research unit will be leading on mountain research.

ARU Director, Dr Ralph Clark, said the project would explore the effects of global change, biological invasions (when species invade new geographic regions), as well as climate and land-use change. He said experiments were needed to explore the various possibilities and to test the extent to which species respond to experimental treatments. The project would therefore be conducting experiments for two years using open-top chambers – causing an increase in temperature of 3 or 4 degrees to what you find naturally – on plant species from lower down to the top of the mountain, to see how they function. “This will give us an idea of whether they will be able to survive in global warming scenarios. If temperatures get warmer, we might start seeing a lot of plants up here that we wouldn’t otherwise find here.”

Dr Clark said little is known about the long-term monitoring of species distribution and the effects of global change. Implementing the project in the Maloti-Drakensberg alpine area will therefore put the area in the global mountain research arena. The elevational gradient in the Maloti-Drakensberg Mountains provides space to explore the key processes underlying the variation in species elevation with climate change. “One of the things we don’t know much about are alpine systems. We are hoping to establish a long-term alpine research site and try to add as many studies as we can. The more science we can bring up here, the more we can know about mountain life. What happens on mountains has a lot of impact on social dynamics.

“This project is looking to see what is driving range expansion. Every mountain has its own context. In the Swiss alpine, fires are not a big factor, but fires are one of the biggest factors on our mountains. Some of our native and non-native species are therefore fire-driven, so as fire increases, you might have them spreading faster.”

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International human development practitioners gather at first HDCA conference in Africa

2017-09-18

The first HDCA annual conference on African soil was held at
UCT from 6 to 8 September 2017.

The Human Development and Capability Association (HDCA) is a global community of academics and practitioners that seeks to build an intellectual community around the ideas of human development and the capability approach, and to relate these ideas to the policy arena and justice in the world. The association promotes research within many disciplines, ranging from economics to philosophy, development studies, health, education, law, government, sociology, and more. Members live in over 70 countries worldwide.

The HDCA’s conference is held annually; in 2017, the 17th international conference was held in Africa for the first time. Hosted by the Universities of Cape Town, the Free State (UFS), and the Western Cape, and the Human Sciences Research Council (HSRC), the meeting was held in Cape Town from 6 to 8 September 2017. The conference attracted outstanding global scholars, such as Profs Ravi Kanbur (Cornell), Martha Nussbaum (Chicago), Ingrid Robeyns (Utrecht), and Jayati Ghosh (Jawaharlal Nehru University), among many others.

The conference theme was Challenging Inequalities: Human Development and Social Change, a particularly apt topic in the wake of Stats SA’s latest Poverty Report, which shows growing poverty and inequality in South Africa. Prof Melanie Walker, Director: Centre for Research on Higher Education and Development (CRHED) at the UFS, outgoing vice-president of the HDCA, and a member of the conference committee, led a group of researchers from CRHED, ten of whom were involved in presenting papers, while two former PhD students also presented their research. Overall, the quality of papers was very high, with Prof Nussbaum remarking that this was ‘the best HDCA conference’ she had attended.

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