Interconnected Nature and People: Biosphere Reserves and the Power of Memory and Oral Histories as Biocultural Heritage for a Sustainable Future

Biosphere Reserves (BRs) represent dynamic spaces where the interdependence between nature and people is actively shaped and preserved. These territories serve as living laboratories for sustainable development, blending conservation efforts with local knowledge and cultural traditions. This paper explores how BRs exemplify the interconnection between ecological resilience and biocultural heritage, demonstrating the value of integrating traditional practices into contemporary sustainability frameworks. Using insights from the Memories of Biosphere Reserves project, which has collected over 370 testimonies from Portugal, Brazil, and São Tomé e Príncipe, this study highlights the role of memory and storytelling in reinforcing socio-ecological resilience and informing participatory conservation governance. By documenting personal experiences, traditional land-use practices, and community perceptions, these testimonies foster empathy, intergenerational learning, and ethical engagement with the environment. They also provide crucial knowledge for environmental stewardship and community-driven sustainability strategies. The article further examines the transformative role of digital technologies, open science, and artificial intelligence in preserving and disseminating biocultural heritage. Through georeferenced digital archives and participatory research, communities safeguard their cultural and ecological heritage, ensuring knowledge transmission across generations. By positioning BRs as models for integrated conservation and development, this paper underscores the importance of interconnected socio-ecological systems in achieving sustainability goals. The findings suggest that valuing and preserving biocultural heritage within BRs not only strengthens community identity and resilience, but also provides actionable pathways for addressing contemporary environmental challenges.