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On World Wetlands Day (2 February 2023), we celebrate the incorporation of a significant wetland into the Agulhas National Park at the southern tip of Africa.
Through a generous donation, WWF South Africa took ownership of a portion of the Vissersdrift property for incorporation into the Agulhas National Park last year. This move has secured 90% of the Soetendalsvlei wetland and added a further 2 345 hectares to the park which lies about 200km from Cape Town in the Western Cape.
The vlei gets its name from the Zoetendaal, a Dutch ship that was wrecked off the nearby coast in 1673 on route from Jakarta. Those survivors who were able to make it to shore, walked inland and found freshwater to keep them alive at the vlei. They were so thankful that they named it after their ship. They were helped by a local Khoikhoi chief and cattle trader to get back to Cape Town.
Soetendalsvlei, which is Africa’s southernmost freshwater lake, plays a critical role in recharging groundwater and supplying freshwater for local agriculture. It drains into the Heuningnes River which connects with the sea at De Mond Nature Reserve between Struisbaai and Arniston. Here, the Heuningnes estuary provides both a safe-haven for migrating birds and for breeding fish.
By turning this area over to conservation and reducing alien plant infestation and other pressures, the hope is that Soetendalsvlei’s ecological functions will be safeguarded into the future – in line with this year’s World Wetland Day theme of restoration. Wetlands internationally are among the most threatened ecosystems and often overlooked and degraded.
Dr Luthando Dziba, SANParks Managing Executive: Conservation Services, said “a benefit of this acquisition is that it also protects inland salt pans, many of which are under threat in the Western Cape from urban development, mining and agriculture, along with rare veld types such as the Critically Endangered Central Rûens Shale Renosterveld, Vulnerable Agulhas Sand Fynbos and Limestone Fynbos which face similar threats.”
Soetendalsvlei is designated both a Critical Biodiversity Area and an Important Bird Area, supporting over 60 water bird species including several birds of concern such as the Damara tern, great white pelican and two flamingo species, along with over 21 000 migrant and resident birds that are recorded here annually.
Part of the Vissersdrift property supports pockets of milkwood forests around the vlei which once offered shelter to the first inhabitants of this area. South of this property lies the Denhami property that was recently acquired by the National Parks Trust which is also to be included as part of the core of the park. Although it does not have wetlands on it, it is the link between the Sandberg Mountain and the Soetendal vlei, supporting the ecological functionality of the vlei system.
Dr Dziba added that “The Soetendalsvlei and wetland properties also add substantial value to the park’s cultural and archaeological attributes. Historically, people used the adjacent salt pans for harvesting salt for local use and later to export to Cape Town. About every 50 to 100 years the vlei’s bed is exposed through droughts, such has happened in April 2019 when one could see some of these archaeological and cultural artifacts. Among the first management actions will be to clear the alien infestation on the north-western end of the property, and to address the erosion control, to sustain the ecological functioning.”
The park will now assume a visible presence on the ground and begin planning and implementing veld and wetland rehabilitation through our Working for Water and Working on Wetlands programmes. SANParks will also plan towards improving area integrity, look at fences, access control and other uses on land. However, the main focus will be restoration of the natural habitat.
Dr Morné du Plessis, CEO of WWF South Africa, said, “In the conservation world where we are often up against it, it’s important that we take a moment to celebrate our successes – and the acquisition of this critically important wetland area for incorporation into Africa’s southernmost national park is one such milestone. We are proud to have been able to facilitate the expansion of the Agulhas National Park with a wetland that plays such a significant role in a functioning ecosystem. We are immensely grateful both to our generous donors and SANParks for their efforts in securing this wetland for future generations.”
Dr Dziba, concluded that “Estuaries and wetlands are the most threatened and least protected ecosystems in South Africa. The inclusion of this area into the Agulhas National Park not only expands the park but also contributes towards the protection of a critical wetland ecosystem for the Overberg region and its people. It is through productive partnerships such as this that we can achieve great things as we strive towards meeting the ambitious goals in the new Global Biodiversity Framework agreed in Montreal recently. On behalf of SANParks, I wish to express our sincere thanks to WWF for their support in making this dream a reality.”
World Wetlands Day is an international day that raises awareness about the significance of wetlands for water security and biodiversity. For the past few years, WWF has highlighted a significant achievement towards securing and looking after these often overlooked and neglected ecosystems.