This master thesis explores the shifting paradigm in conservation, moving away from the myth behind the preservationist approach that separates humans from nature towards a more inclusive conservationist approach. The study focuses on the role of Indigenous Peoples in this evolving paradigm and examines factors that influence their ability to participate in and influence conservation debates and policies. The research draws on qualitative exploratory methods, including interviews with Indigenous Peoples and experts in the conservation field. Thirteen factors emerged from the thematic analysis, namely: legal recognition, law enforcement, political representation, awareness, external support, community building, capacity-building, connection across Indigenous communities, economic inclusion, public attention, protests, advocacy, and intimidation. The findings emphasize the need for a systemic and inclusive approach to conservation policymaking that incorporates cultural diversity and respects the rights, perspectives and agency of Indigenous Peoples. Ultimately, the conservationist approach, and particularly the effective inclusion of cultural diversity in conservation debates and policies, can enhance society's capacity to protect and sustain natural resources and biodiversity for current and future generations, aiding our sustainability journey in its ecological and social sides.