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28 November 2019 | Story Leonie Bolleurs
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Dr Sandy-Lynn Steenhuisen and Ruth Cozien at a spot high up in the Maloti-Drakensberg World Heritage Site, close to Sentinel Peak, photographing a Drakensberg crag lizard underneath the leaves of the ‘Hidden Flower’.

Flowers high up in the Maloti-Drakensberg World Heritage Site made world news when it was discovered that the Drakensberg Crag Lizard is their sole pollinator. 

This first for continental Africa – a plant being pollinated by a lizard – is a discovery by a research group including Dr Sandy-Lynn Steenhuisen, Senior Lecturer in the Department of Plant Sciences and affiliate of the Afromontane Research Unit (ARU) at the Qwaqwa Campus of the University of the Free State (UFS), in collaboration with Dr Timo van der Niet, Prof Steven Johnson, and project leader Ruth Cozien, all from the Pollination Ecology Research Laboratory and Centre for Functional Biodiversity at the University of KwaZulu-Natal.

Besides their work being published in popular news here in South Africa (including an isiZulu article), it has also received coverage in, among others, Belgium, Canada, the Netherlands, and the United States of America. 

Is it a bee, a bird, perhaps a mouse?

‘Hidden Flower’, true to its name, is a plant species with flowers hidden at ground level, underneath the leaves of the plant. Like the leaves, the flowers are also green. With the flowers filled with nectar (up to 1 ml per plant) and strongly scented, one concludes that, just as with other flowers, these flowers must be visited by a pollinator. Is it a bee, is it a bird, perhaps a mouse/non-flying mammal?

According to Dr Steenhuisen, who was brought into the project because of her experience with rodents pollinating proteas, many plants are adapted to attract and be pollinated by a specific animal. They attract their pollinators using particular scents and colours and reward them for their service with, for example, nectar, oil, fragrance, and sometimes even shelter. 

The ‘Hidden Flower’ initially had the group of researchers thinking that it was being pollinated by a non-flying mammal. “Everything about the plant made it look like it should be mammal-pollinated,” Dr Steenhuisen said. 

They investigated all options, using several techniques to assess the contribution of different possible animals to set seed. To further assist them in their quest to find the true pollinator, the team put up motion cameras that recorded activity in the area of the ‘Hidden Flower’. 

Great was their surprise when studying the video material after a week of fieldwork in the mountains, finding shy lizards dipping their snouts in the ‘Hidden Flower’ and lapping up the nectar.

Dr Steenhuisen described this discovery as completely bizarre, exciting, and fascinating. 

To make 100% sure that lizards are pollinating the ‘Hidden Flower’, these animals were excluded from the plants. Results published in a paper in Ecology showed that when the lizards were experimentally excluded from the plants, the number of seeds produced dropped dramatically by almost 95%. This finding helped to further prove their discovery. 

Strong scent and bright orange colour attract

The team researched the new phenomenon and found that although flower visitation by lizards is not unknown, it occurs almost exclusively on oceanic islands. Cozien says one should keep in mind that mountains are like sky islands and might therefore have similarities with oceanic islands in terms of their ecology.

The strong scent and the touch of orange at the base of the inside of the flowers is believed to play an important role in attracting lizards. The little lizard may recognise the spots of orange inside the flowers which resemble the orange colour of a male lizard in mating season, attracting females. Lured by the strong scent and the orange spots, the reptiles stick their snouts into the flower in search of nectar, pollinating the ‘Hidden Flower’; thus, making sure that this flower will continue to grow on the slopes of Sentinel Peak in the Maloti Drakensberg range. 

This research finding on lizard pollination, which reads almost like a fairy tale with its islands, hidden flowers, nectar from the gods, and little dragons, shows that there are still many unknown and surprising interactions that need to be discovered and conserved to ensure a healthy ecological system. 

The research findings of this study were published in April 2019. 

News Archive

A year of various highlights for UFS
2016-12-19

Some other highlights:

Description: Prof Maryke Labuschagne, Bloemfontein Highlights Tags: Prof Maryke Labuschagne, Bloemfontein Highlights
The UFS was awarded five SARChI
(South African Research Chairs Initiative)
research chairs, the main goal of which is
to promote research excellence.
Read the full story


Description: Alumni Awards, Bloemfontein highlights Tags: Alumni Awards, Bloemfontein highlights

The UFS Chancellor’s Distinguished
Alumni Awards ceremony was held on
5 November 2016 on the
Bloemfontein Campus.
Read the full story


Description: Candice Thikeson, Bloemfontein Highlights Tags: Candice Thikeson, Bloemfontein Highlights

UFS student Candice Thikeson
completed a hat-trick of accolades when
she was named recipient of the Abe Bailey
Travel Bursary.

Read the full story

 

Description: Reitumetse Maloa, Bloemfontein Highlights Tags: Reitumetse Maloa, Bloemfontein Highlights

Reitumetse Maloa, a young researcher
at the UFS, is searching for a solution to
South Africa’s energy and electricity
problems from a rather unlikely
source: cow dung.

Read the full story


It was a year of various highlights for the University of the Free State (UFS) which has again illustrated the institution’s versatility by excelling on various fronts, from sports to research.

Some of these included Wayde van Niekerk winning a gold medal at the Olympic Games in Rio de Janeiro; research on the locomotion of the giraffe, and the awarding of honorary doctorates to people such as veteran journalist Max du Preez.

Van Niekerk breaks 400m world record

After his feat in Rio on 14 August 2016, Van Niekerk was described as “the next star” by former US sprinter Michael Johnson, whose 17-year-old 400m world record he broke in a time of 43,03. Johnson described the way in which the Kovsie outperformed the 400m field as “a massacre”.

Wayde van Niekerk was described as “the next star" by Michael Johnson, whose 17-year-old 400m world record he broke in a time of 43.03.


Max du Preez and Trevor Manuel honoured


Du Preez (Humanities) said he was excited about the young minds he had interacted with at the Winter Graduation ceremony of the UFS. The leading journalist and political analyst was one of four recipients of honorary doctorates from the university on June 30 2016. The others were Prof Joel Samoff (Humanities), former finance minister Trevor Manuel, and Dr Reuel Jethro Khoza (both Economic and Management Sciences.

Research of great value for conservation


Dr Francois Deacon, Department of Animal, Wildlife, and Grassland Sciences at the UFS, and Dr Chris Basu, a veterinarian at the Royal Veterinary College in the UK, conducted research on the manner in which giraffes locomote from one place to another.

Very little research has been done on the manner in which these animals move. The research will assist in understanding aspects such as the giraffe’s anatomy and function, as well as the energy it utilises in locomoting. Such information could help researchers understand where giraffes fit into the ecosystem and the data would be of great value for large-scale conservation efforts.

 

 

 

Read more on these highlights:

 

Wayde van Niekerk:

15 August 2016: Wayde the next big star, says Michael Johnson
20 September 2016: I don’t see myself as a star, says Wayde
27 October 2016: Wayde, Karla shine again at KovsieSport gala night
24 November 2016: Wayde keeps winning off the track

Honorary doctorates:

29 June 2016: UFS will award four honorary doctorates during Winter Graduation ceremonies
2 July 2016: Trevor Manuel and Max du Preez among the recipients of honorary doctorates at UFS graduation

Giraffe research:

9 March 2016: Giraffe research broadcast on National Geographic channel
23 August 2016: Research on locomotion of giraffes valuable for conservation of this species
18 November 2016: Studies to reveal correlation between terrain, energy use, and giraffe locomotion

 

 

 

 

 

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