A speck of hope in a fragmented landscape: the story of the Widenham Wetland Protected Environment

By Joshua Weeber, Threatened Amphibian Programme

Critically Endangered Pickersgill’s Reed Frog

 

The Windenham Wetland Protected Environment on the KwaZulu-Natal south coast has formally been declared.

The story of this Protected Environment began almost a decade ago. In 2015 The Endangered Wildlife Trust (EWT) initiated monitoring programmes for selected, critical wetland habitats supporting the Endangered frog Hyperolius pickersgilli (Pickersgill’s Reed Frog) in the eThekwini Municipality. One of the selected wetlands was the ‘Widenham Wetland’ located in the suburb of Widenham, immediately south of the town of Umkomaas, approximately 45km south of Durban and within the eThekwini Municipality. The area is home to over 27,400 people with over 7,800 households of which 8.8% are informal dwellings. The site comprises of eight different erven and was acquired by the municipality in 2010 after a proposed residential development on the site was stopped because of the discovery of the then Critically Endangered Pickersgill’s Reed Frog.

Widenham is a small (~1.6ha) channelled valley bottom wetland that comprises a mix of alien thicket / woodland and herbaceous marshland. It is located within the lower reaches of a small coastal stream system with relatively broad valley-bottom and a gentle longitudinal slope gradient and formed immediately upstream of the frontal dune system characteristic of coastal KZN.

Currently, much of the area within and around the Protected Environment has been transformed, and biennial wetland health assessments since 2015 show that the Present Ecological State (PES) of the wetland is classified as a D, which is Largely Modified. In short, Widenham Wetland represented a small, impacted system surrounded by urban infrastructure that was not a particularly intact state, but one that still provided habitat for a key endangered focal species for the EWT in the province.

In 2019 the EWT initiated actions to protect the Widenham wetland and drive long-term management and rehabilitation interventions that would safeguard this little natural space and the species within it for generations to come. A logical approach to achieve this goal was through Biodiversity Stewardship – an approach to securing land in biodiversity priority areas through entering into agreements with landowners with the intention of securing the biodiversity of South Africa. Fortunately, the wetland was purchased by the municipality, who were key partners in the project. A site assessment indicated that the area qualified for the Protected Environment category provided rehabilitation actions were developed and guided by a detailed Protected Area Management Plan. Working with key stakeholders such as eThekwini Municipality and Verdant Environmental, a detailed rehabilitation and management plan was developed.

Critically Endangered Pickersgill’s Reed Frog

After many months of waiting, and assistance from our partners Conservation Outcomes, the Widenham Wetland was finally gazetted as a Protected Environment on the 27th June 2024. The timing of this achievement has been crucial – the EWT’s Threatened Amphibian Programme launched an exciting new project in early 2024 aimed at enhancing the ecological integrity of key wetland sites to improve local biodiversity and provide ecological goods and services to nearby communities. One of our priority sites linked to this project is Widenham Wetland, and efforts are already under way to improve the ecological functioning of this site through targeted alien vegetation clearing.

Working with the local municipality we are also in the process of implementing an extensive rehabilitation plan which will include redesigning a section of the wetland and revegetating impacted areas. All of these actions will be monitoring through wetland health assessments as well as passive acoustic monitoring of the isolated subpopulation of Pickersgill’s Reed Frog that rely on this wetland. We hope our actions will safeguard this little speck of hope into the future.

This work has been in process for many years and would not have been possible without the efforts of Jeanne Tarrant and Cherise Acker, among many others. Similarly, our generous funders have been integral to this conservation success story. We thank Rainforest Trust, Synchronicity Earth, and Anglo American for their support.

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