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ARU researcher Ntebohiseng Sekhele guest edits journal on montane rangelands

06 April 2021 | Story Thabo Kessah | Photo Thabo Kessah

Ntebohiseng Sekhele_web read more — Ntebohiseng Sekhele is the Associate Guest Editor of the recent Special Issue of the African Journal of Range & Forage Science.

The Director of the Afromontane Research Unit (ARU), Dr Ralph Clark, and researcher, Ntebohiseng Sekhele, recently became part of a guest editorial team for the African Journal of Range & Forage Science. The Special Issue titled, ‘Montane rangelands in a changing world’, was published on 3 March 2021.

“I feel privileged to have been part of the team that assembled this special issue. The experience was daunting at first, as I had never been part of an editorial team before. However, with the support of the guest editors and the journal’s administrator, I was able to overcome the imposter-syndrome feeling and allowed myself to learn and enjoy the ride. My ‘aha’ moments were the critical comments from the reviewers on each paper. It was amazing to witness how this feedback would enhance the quality of an article,” said Ntebohiseng Sekhele, Geography lecturer on the Qwaqwa Campus.

Journal focus

This issue focused on the applied management of montane rangelands for production in Southern Africa and the broader world. Submissions could include original research, reviews, and meta-analyses. This has culminated in contributions that centred on the impact of policy on pastoral practices by montane communities, fire management regimes, cumulative effects of poor governance on rangeland degradation, and sustainable grazing systems – including in ecological infrastructure such as montane wetlands and communal rangeland.

“The process took almost a year, as the first call for abstracts was made in December 2019 and final revisions of accepted papers were concluded in November 2020. There were 32 submissions with only 12 articles and one book review of Prof Rodney Moffett’s book, A Scientific Bibliography of the Drakensberg, Maloti and Adjacent Lowlands. Of the 12 contributions, nine focus on the Maloti-Drakensberg, with papers on Lesotho, KwaZulu-Natal, and the Free State,” she revealed.

Submitted papers

“All papers advocate for the sustainable management of sensitive montane systems, which ties well with my own research that makes a contribution to the limited scholarship of natural resource-related conflicts between montane communities and their adjacent protected areas, as well as climate change impacts on natural resources,” said Sekhele, a PhD candidate through the ARU’s US-SA University Staff Development Programme (USDP). The special issue allowed for a closer link between the US and SA USDP through the involvement of Dr Kryan Kunkel – Ntebohiseng’s US co-supervisor – as one of the guest editors.

News Archive

Harvard couple to present lectures on Biostatistics and Mathematics at the UFS

2015-12-07

Professor Donald Rubin

Prof Donald Rubin (John L. Loeb Professor of Statistics at Harvard University) and Elizabeth Zell (MStat - mathematical statistician in the Division of Bacterial Diseases) will visit the University of the Free State (UFS) where they will present lectures on their respective work.

Over his prestigious academic career, Prof Don Rubin’s 400 publications and 13 books have earned him around 180 000 citations at an h-index of 113. He is one of the most cited statisticians/mathematicians/economists/psychologists in the world over the last 10 -15 years. He has supervised 35 PhD candidates as sole-supervisor, 17 more as co-supervisor, with a further eight in the pipeline.

Prof Rubin who will meet with UFS academics in the Department of Mathematics and Actuarial Sciences will also deliver a lecture: Rerandomisation to improve covariate balance in experiments.

Randomised experiments are the “gold standard” for estimating causal effects, yet in practice, chance imbalances often exist in covariate distributions between treatment groups. If covariate data are available before units are exposed to treatments, these chance imbalances can be mitigated by first checking covariate balance before the physical experiment takes place. Provided a precise definition of imbalance has been specified in advance, unbalanced randomisations can be discarded, followed by a rerandomisation. This process can continue until a randomisation yielding balance according to the definition is achieved. By improving covariate balance, rerandomisation provides more precise and trustworthy estimates of treatment effects.

Prof Rubin received an honorary professorship from the Faculty of Natural and Agricultural Sciences at the UFS.

Elizabeth Zell

The lecture will take place on:
Date: Tuesday 8 December 2015
Time: 16:00
Venue: Albert Wessels Auditorium, Bloemfontein Campus

Zell earned her Master’s degree in Statistics at North Carolina State University, and for more than two decades, was an active bio-statistical researcher in various offices of the Centers for Disease Control (CDC). Since 2013, she has been the Principal Statistician and President of Stat-Epi Associates, Inc. Her 150+ publications have earned her 14 500 citations at an h-index of over 50. She is a Fellow of the American Statistical Association, and, in 2010, she received the Statistics Section Government Award for outstanding contributions to statistics and public health by the American Public Health Association. During her career at the CDC, she earned more than 20 CDC research awards and honours.

She will deliver two lectures at the UFS. The first is entitled A Potential Outcomes Approach to Documenting the Public Health Impact of the Introduction of PCV13 for the Prevention of Invasive Pneumococcal Disease. The topic of her second lecture is: Assessing the Effectiveness of Intrapartum Antibiotic Prophylaxis for Prevention of Early-Onset Group B Streptococcus Disease through Propensity Score Design

Elizabeth’s lectures will take place on:
Date: Wednesday 9 December 2015
Time: 10:45 and 13:00
Venue: West Block 111, Bloemfontein Campus

For more information, please contact Dr Michael von Maltitz at VMaltitzMJ@ufs.ac.za.

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