Towards a bioregional approach to tropical forest conservation: Costa Rica's greater Osa Bioregion

Even by neotropical standards, the Osa Peninsula on the Southwest Pacific coast of Costa Rica contains extraordinary levels of biodiversity and endemism. Despite a 40-year history of conservation in a country known for its conservation efforts, the greater Osa Bioregion and its complex of protected areas face an uncertain future. Habitat fragmentation and genetic isolation threaten the long-term survival of the Osa's signature species, while Osa policymakers with limited resources struggle to address dilemmas posed by illegal resource extraction and uncertain and changing land tenure. More recently, the socio-political landscape has changed with the emergence of a 'landed conservation gentry,' sharing the Osa's ecological wealth with the poor frontier campesino. A review of conservation efforts in the Osa through the political ecology construct of bioregionalism provides an opportunity to further define this construct in the distinct context of neotropical forest conservation. In this article we review the theoretical underpinnings of bioregionalism, focusing on its value for neotropical forest conservation, and apply it to the mosaic of public and private lands that encompass the Greater Osa Bioregion. We characterize the complex and shifting governance framework for Osa conservation focusing on the current conservation initiative, the Osa Biological Corridor project. We conclude with the suggestion that bioregionalism's emphasis on reconciliation of humans and their environment-'reinhabitation'- an implicit goal of the Osa Biological Corridor project, may offer the best hope for the future. (c) 2005 Elsevier Ltd. All rights reserved.