The insufficiency of conservation strategies focused on the Tesso Nilo Region underscores the necessity for inclusive and participatory transformative governance frameworks. The objective of this investigation is to analyze communication dynamics, identify obstacles to participation, and develop a contextually appropriate participatory communication model that promotes sustainable development in Tesso Nilo. Employing a qualitative research methodology with a multiple case study framework, data were amassed through in-depth interviews with 24 key informants, focused group discussions, participatory observations, and document analysis conducted in three buffer villages within the region. Thematic analyses were executed, bolstered by the triangulation of data to substantiate the findings. The results indicated that while official communication frequently exhibited exclusivity, local leaders and informal forums emerged as effective mediums for dialogue that enhanced social capital. In light of these findings, a Social Capital-Based Participatory Communication Model was developed, comprising three fundamental pillars: (1) equitable dissemination of information, (2) facilitation of inclusive dialogue, and (3) collaborative decision-making processes. This model offers an operational framework designed to promote participatory, transparent, and equitable governance in conservation initiatives. This research contributes to theoretical discourse by synthesizing the concepts of participatory communication, social capital, and environmental governance, while providing practical implications for conservation policies tailored to local contexts. Its implementation is recommended through the establishment of village communication forums, structural engagement of local leaders, and the enhancement of community capacity building.
