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Traditional water knowledge can help protect Nile crocodiles—and put them at risk

Conservation: Management, Habitat protection, Human–wildlife conflict, Threats

Traditional water knowledge is knowledge, practices and beliefs about local waters passed down through generations. A review of 83 studies examined how this knowledge relates to Nile crocodiles (Crocodylus niloticus) and how it is reflected in wildlife and water policies across Southern African Development Community countries.

Some customs can help protect crocodiles and the wetlands they depend on. Taboos and beliefs that crocodiles are sacred may discourage hunting, while local knowledge can help identify nesting sites, seasonal movements and places where people are more likely to encounter crocodiles. In some communities, people also read the presence of crocodiles as a sign of aquatic ecosystem health.

But traditions and attitudes do not always work in the species’ favour. The reviewed literature describes crocodile teeth, skin, fat and other parts being used for medicine, spiritual protection, food and decoration. Fear and negative experiences can also fuel conflict and retaliatory killing. The review reports nearly 90% similarity in documented traditional uses across the region, while noting that practices vary and some knowledge is kept private or remains undocumented.

The review also identifies a gap between local knowledge and formal management: traditional water knowledge is often poorly represented in wildlife and water policies, with fragmented institutions and limited community influence among the barriers. Crocodile ranching can support populations, but collecting wild eggs to supply farms can undermine that conservation contribution.

Bringing local knowledge together with scientific monitoring could help managers protect nesting areas and reduce risky encounters. The review synthesizes existing studies and policies rather than measuring crocodile populations, so it identifies potential conservation benefits and conflicts, not a demonstrated population increase from policy changes.

Sources and image credit

  1. Traditional water knowledge and Nile crocodile (Crocodylus niloticus) conservation in Southern Africa: a systematic review of policy integration, institutional gaps, cultural uses, and barriersFull-text primary source. Verifies the publication date, review scope, synthesis of 83 studies, findings and stated qualifications.

Image: Bernard DUPONT from FRANCE / Wikimedia Commons, CC BY-SA 2.0. Representative photograph. · CC BY-SA 2.0 · Source

About this content: This story was produced with AI assistance within an editorial workflow developed by Wildlife Vagabond. Editorial responsibility remains with Wildlife Vagabond.How AI is used

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