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ARU collaborates with Zimbabwe on trans-boundary African mountains research

01 July 2020 | Story Thabo Kessah | Photo Supplied

Bvumba1_read more — Breathtaking views of the misty Bvumba mountains.

While the Afromontane Research Unit (ARU) will always have a core focus on the sustainable development of the Maloti-Drakensberg (Lesotho-South Africa), the Southern African region is also very important to the unit. The primary reason for this is that Southern African mountains – the most important water-production landscapes in our drought-prone region – have no collective voice for their sustainable management. As such, there is no regional science-policy-action pipeline to secure these mountains for interventions to ensure that they can still produce key ecosystem services under global change. This is in contrast to East Africa where there is a much better-established community of practice for the charismatic African giants such as Mount Kilimanjaro.

ARU-Southern African collaboration

To this end, the Director of the ARU, Dr Ralph Clark, revealed that the ARU has close links with academics, practitioners, and lay experts in Zimbabwe for the careful documenting of mountain biodiversity in the Manica Highlands. This is a trans-national mountain system critical for water supply to both Zimbabwe and Mozambique. The Bvumba (‘mist’ in Shona) Mountains are situated in the centre of the Manica Highlands. The name Bvumba is derived from the regular mist covering these mountains.

“The Bvumba has a complex socio-political history extending far back, before the arrival of the Portuguese in the 1400s. Despite this history of human occupation, and despite a century of botanical exploration in the 20th century, a comprehensive list of plant species – including endemic species – has never been published for the Bvumba. Such basic lists are essential for foundational knowledge that can drive sustainable development and responsible management of natural resources,” Dr Clark said.

The ARU and partners have collaborated to compile records of the first comprehensive species list for the Bvumba. “This project was done in partnership with the Harare Herbarium, Belgium’s Meise Botanical Gardens, the Flora of Zimbabwe and Mozambique projects, the Biodiversity Foundation for Africa, and the UK’s Royal Botanical Gardens, Kew. It was recently completed with a publication in the journal PhytoKeys.”

Bvumba’s hundreds of species

The Bvumba has a plant species complement of 1 127 native taxa in an area of only 276 square kilometres. “There is remarkable fern and orchid diversity in these mountains, with 137 fern species that is considered to be the richest fern locality in Southern Africa. There are also 125 orchid species that make it exceptionally rich for this group. The only local Bvumba endemic is a critically endangered epiphytic forest orchid. Six other near-endemic plant taxa occur in the Bvumba, all of which are endemic to the Manica Highlands from Nyanga to Chimanimani,” added Dr Clark.

Low levels of local endemism are likely to be an effect of the Bvumba having limited natural grassland compared to forest. “Second to fynbos, grassland is the most endemic-rich habitat in Southern African mountains. Montane forests are poor in local endemics by comparison, which is contrary to what many would suppose. As in mountains across Southern Africa, invasive species are a major risk to water security, biodiversity conservation and livelihoods. The Bvumba is no exception, with Australian blackwood (Acacia melanoxylon), ginger lily (Hedychium gardnerianum), and bee bush (Vernonanthura polyanthes) being the most problematic species of the 123 naturalised introductions. While the Zimbabwean side of the Bvumba is the best explored, the Mozambican side of Serra Vumba offers exciting opportunities for further botanical research,” he emphasised.

News Archive

Plant Pathology student represents UFS at Youth Ag-Summit in Australia

2015-07-24

Nicola Theron
Photo: Leonie Bolleurs

Nicola Theron, a third-year student in the Department of Plant Sciences at the University of the Free State (UFS), will be attending the Youth Ag-Summit in Australia next month.

According to Prof Zakkie Pretorius, researcher in the Department of Plant Sciences, this is a great achievement for the university, given that Nicola is one of only four students from Africa chosen to attend the summit. The selection process was facilitated by Bayer Cropscience.

In her essay, Nicola focused on ‘In field rainwater harvesting’ (IRWH) and its application in informal settlements for the purpose of saving water, as well as of utilising available water to its full potential.

From 24 to 28 August 2015, she will gather with 99 other young leaders from across the world at the Youth Ag-Summit in Canberra, Australia, where they will be discussing their ideas on finding sustainable solutions for the growing global need towards safe and nutritious food.

Young people between the ages of 18 and 25 interested on a personal, professional, and academic level in agriculture, and food security, as well as environmental and social stewardship, were asked to present their ideas on the causes, consequences, and possible solutions for global food security, in an essay of 1500 words.

The judges received more than 2000 essays from 87 countries.

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