Biodiversity stewardship is an approach to entering into agreements with private and communal landowners to protect and manage land in biodiversity priority areas, led by conservation authorities in South Africa. It recognises landowners as the custodians of biodiversity on their land. Biodiversity stewardship is based on voluntary commitments from landowners, with a range of different types of biodiversity stewardship agreements available to support conservation and sustainable resource use. Some types of biodiversity stewardship agreements are formally declared as protected areas in terms of the Protected Areas Act, providing long-term security for the sites involved.