Evaluating indigenous knowledge of non-native mangrove palm (Nypa fruticans Van Wurmb) in the Douala-Edea national park, Cameroon

Abstract

InformationNypa fruticans Van Wurmb, commonly known as 'Natte De Mami Water' or 'Na Jahjah,' is a versatile palm that serves various purposes, including roof thatching, partitioning, food sources, medicinal applications, and fuel wood.Its rhizomes are particularly important for fishing and enhance the buoyancy of nets on the water's surface.Additionally, Nypa fruticans plays a crucial role in soil stabilization, erosion protection, and mitigating the impacts of cyclones and high sea waves in coastal areas.This study aimed to investigate the indigenous knowledge, perceptions, and utilization of the non-native mangrove palm, Nypa fruticans Van Wurmb.Methodologically, data were collected using Participatory Rural Appraisal (PRA) tools, which included semi-structured interviews with local residents, primarily fishermen, living near the mangroves.Field observations complemented the interviews.A purposive sampling approach was employed to administer questionnaires that gathered public opinions.Primary data on the utilization of Nypa were obtained through direct interviews with community members using detailed household questionnaires designed to capture both quantitative and qualitative insights.The findings reveal that the palm is significantly undervalued by local inhabitants, who primarily acquire it through self-exploitation, with limited commercial activity and insufficient adaptation and management strategies regarding its use.To address these challenges, this study proposes recommendations for sustainable management practices aimed at enhancing the value and utilization of Nypa fruticans within the community.