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30 October 2020 | Story Leonie Bolleurs | Photo Supplied
ARU Researchers on mountain slope
A team of international researchers discovered in March 2020 a new grass species, Festuca drakensbergensis, during extensive fieldwork in the 40 000 km2 Maloti-Drakensberg area.

In their search to learn more about the impact of humans and climate change on grasses in the Drakensberg Mountain Centre (DMC), one of the most studied mountain systems in the region, a group of scientists found a new grass species, which they named Festuca drakensbergensis (common name unknown; herein could be designated the ‘Drakensberg Alpine Fescue’).

The team who is working on the project includes Dr Vincent R. Clark, Head of the Afromontane Research Unit at the University of the Free State (UFS), Prof Steven P. Sylvester from the Nanjing Forestry University in Nanjing, Jiangsu, China, and Dr Robert J. Soreng, working in the Department of Botany at the Smithsonian Institution in Washington DC.

 

The discovery

The species, that was discovered in March 2020, was found during extensive fieldwork and herbarium research across the 40 000 km2 Maloti-Drakensberg area. The DMC has a very high endemic plant diversity, says Dr Clark.

He goes on to say that the DMC has a Montane Sub-Centre (below 2800 m) and an alpine sub-centre (above 2800 m). “It is the only mountain system in Africa south of Mt Kilimanjaro with an alpine component,” he adds.

ProfSylvester says the species was easily recognisable during their fieldwork, being found fairly common throughout the Afro-alpine landscape. Although at that point they only knew it to be a distinct taxon, they realised that the species was new to science when they tried to identify it and compared it with other closely related Festuca taxa.

Besides this discovery, the team also reinstated two varieties of Festuca caprina and rediscovered the overlooked F. exaristata, all of them endemic to the DMC. Prof Sylvester believes that this discovery highlights the importance of these high-elevation ecosystems as harbours of unique biodiversity that require focused conservation efforts.

Although grasses are a dominant species that control the ecosystem function in the Afro-alpine grasslands, they are the least known of all plant species found in these ecosystems. Up until now there has been a lack of focused research on Afro-alpine grasses.

 “We provide a taxonomic reappraisal of the Festuca caprina complex that will aid future ecological and biogeographical research in the DMC and allow us to better understand the complexities of these ecosystems and how to conserve and manage them,” says Prof Sylvester.

 

This discovery highlights the importance of these high-elevation ecosystems as harbours of unique biodiversity that require focused conservation efforts. - Prof Steven Sylvester

 

 

Adding value

According to Dr Clark, the species contributes to the grazing and rangeland value of the Maloti-Drakensberg. “It also has functional value in terms of maintaining ecosystem integrity and associated water production landscape value in the area,” he says.

“The species seems fairly robust to pressures from grazing and burning, being found in both heavily grazed areas and semi-pristine areas, and may prove a useful species as part of a seed mix of native grasses for reseeding degraded Afro-alpine slopes and ski slopes,” mentions Prof Sylvester regarding the benefits of this indigenous species to the region.

The species is very common in Lesotho in Bokong Nature Reserve, Sehlabathebe National Park, and Sani Pass, and at Tiffendell and AfriSki ski resorts. Dr Soreng believes the species is likely to have a wider distribution range across the Maloti-Drakensberg, than what was documented before research was cut short due to the COVID-19 pandemic.

 

Next steps

According to Prof Sylvester, this taxonomic research feeds into a large-scale ecological study looking at the response of Afro-alpine ecosystems to different grazing and burning regimes that is being run in collaboration with Dr Clark at the ARU and Dr Soreng of the Smithsonian Institute, Washington DC.

“While our research has uncovered interesting novelties and provided a greater understanding of the taxonomy of grasses from high elevation Maloti-Drakensberg, there is still much to be done with regards taxonomic research of cool-season grasses in southern Africa,” says Prof Sylvester.

Dr Clark supports this notion and states that there is a major need for a better holistic understanding of the alpine zone in the Maloti-Drakensberg, given immediate pressures from over-grazing, land-use transformation, invasive species, and climate change.

“This is because the Maloti-Drakensberg is the most important water tower in southern Africa, providing water for some 30 million people in three countries. As the Maloti-Drakensberg is dominated by natural grasslands, understanding grass diversity and ecological behaviour is a primary need in the face of immediate human impacts and global change,” he says.

News Archive

UFS to investigate implementation of quality-monitoring system for SA food industry
2006-02-07

Some of the guests who attended the workshop were from the left Prof James du Preez (Chairperson: Department of Biotechnology at the UFS); Prof Lodewyk Kock (Head: South African Fryer Oil Initiative (SAFOI) at the UFS)); Mrs Ina Wilken (Chairperson: South African National Consumer Union (SANCU)); Prof Herman van Schalkwyk (Dean: Faculty of Natural and Agricultural Sciences at the UFS) and Mr Joe Hanekom (Managing Director of Agri Inspec).
Photo: Stephen Collet
 

UFS to investigate implementation of quality-monitoring system for SA food industry

The University of the Free State (UFS) will be investigating the implementation of a quality-monitoring service for the South African food industry. 

This was decided during a workshop to discuss the external quality monitoring in the edible oil industry of South Africa, which was recently held at the UFS.

Major role players in the fast-food sector like Nando's, Spur, Captain
Dorego's, King Pie Holdings, Black Steer Holdings, etc and various oil
distributors like Felda Bridge Africa, Refill Oils, PSS Oils and Ilanga Oils attended
the workshop. Also present was Mrs Ina Wilken, Chairperson of the South African National Consumer Union (SANCU) and key-note speaker of this workshop. She represented the consumer.  

These role players all pledged their support to the implementation of this quality- monitoring system for the whole food industry. 

The decision to implement this system follows the various malpractices reported in the press and on TV concerning food adulteration (eg the recent Sudan Red Scare), misrepresentation (eg olive oil scandal exposed in 2001) and the misuse of edible frying oils by the fast-food sector. 

“One of the basic rights of consumers is the right to safe food. Consumers must be protected against foods and food production processes which are hazardous to their health. Sufficient guarantee of the safety of all food products and food production processes should be implemented. It does not help to have adequate food standards and legislation and there is no manpower to do the necessary investigation or monitoring,” said Mrs Wilken.

The South African Fryer Oil Initiative (SAFOI), under the auspices of the UFS Department of Microbial, Biochemical and Food Biotechnology, currently monitors edible oils in the food industry and makes a seal of quality available to food distributors.

“Last week’s decision to implement the quality-monitoring system implies that we will now be involving also other departments in the UFS Faculty of Natural and Agricultural Sciences who are involved in various aspects of the food chain in an endeavor to implement this quality monitoring system,” said Prof Herman van Schalkwyk, Dean:  Faculty of Natural and Agricultural Sciences at the UFS and one of the main speakers at the workshop.

Prof van Schalkwyk said that the main aim of such a system will be to improve the competitiveness of the South African food industry.  “It is clear that the role players attending the workshop are serious about consumer service and that they agree that fraudulent practice should be monitored and corrected as far as possible.  Although some of the food outlets have the capacity to monitor the quality of their food, it may not seem to the consumer that this is an objective process.  The proposed external monitoring system would counteract this perception amongst consumers,” said Prof van Schalkwyk.

The workshop was also attended by representatives from SAFOI and Agri Inspec, a forensic investigation company collaborating with inter-state and government structures to combat fraud and international trade irregularities.

Agri Inspec has been working closely with SAFOI for a number of years to test the content of edible oils and fats.  “Extensive monitoring and control actions have been executed in the edible oil industry during the past four years to ensure that the content and labeling of oil products are correct.  Four years ago almost 90% of the samples taken indicated that the content differed from what is indicated on the label.  This has changed and the test results currently show that 90% of the products tested are in order. However, to maintain this quality standard, it is necessary that quality monitoring and educational campaigns are continuously performed,” said Mr Joe Hanekom, Managing Director of Agri Inspec. 

“The seal of quality presented by SAFOI should also be extended to include all the smaller oil containers used by households,” Mrs Wilken said.

The SAFOI seal of quality is currently displayed mainly on some oil brands packed in bigger 20 liter containers, which include sunflower oil, cottonseed oil, palm oil etc which are used by restaurants and fast food outlets.  “Any oil type is eligible to display the seal when meeting certain standards of authenticity.  In order to display the seal, the distributor must send a sample of each oil batch they receive from the manufacturer to SAFOI for testing for authenticity, ie that the container’s content matches the oil type described on the label. This is again double checked by Agri Inspec, which also draws samples countrywide from these certified brands from the end-user (restaurant or fast food outlets). If in breach, the seal must be removed from the faulty containers,” said Prof Lodewyk Kock, Head of SAFOI.

“It should however be taken into account that oils without a seal of quality from the UFS can still be of high quality and authentic. Other external laboratories equipped to perform effective authenticity tests may also be used in this respect,” said Prof Kock.

“It is also important to realise that any oil type of quality such as sunflower oil, cottonseed oil, palm oil etc can be used with great success in well controlled frying processes,” he said.

Further discussions will also be held with the Department of Health, the SA National Consumer Union and Agri Inspec to determine priority areas and to develop the most effective low-cost monitoring system.

More information on the UFS oil seal of quality and oil use can be obtained at www.uovs.ac.za/myoilguide

Media release
Issued by: Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
6 February 2006

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