Integrity and Isolation of Costa Rica's National Parks and Biological Reserves
Biological Conservation 109 (2003) 123–135 www.elsevier.com/locate/biocon Integrity and isolation of Costa Rica’s national parks and biological reserves: examining the dynamics of land-cover change G. Arturo Sa´ nchez-Azofeifaa,*, Gretchen C. Dailyb, Alexander S.P. Pfaffc, Christopher Buschd aDepartment of Earth and Atmospheric Sciences, Earth Observation Systems Laboratory, University of Alberta, Edmonton, Alberta, Canada T6G 2E3 bDepartment of Biological Sciences, Center for Conservation Biology, 371 Serra Mall, Stanford University, Stanford, CA 94305-5020 USA cDepartment of International and Public Affairs, Department of Economics, and Center for Environmental Research and Conservation, Columbia University, 420 W, 118th Streeet, Room 1306, New York, NY 10027 USA dDepartment of Agricultural and Resource Economics, University of California, Berkeley, CA 94720, USA Received 26 August 2001; received in revised form 11 February 2002; accepted 25 April 2002 Abstract The transformation and degradation of tropical forest is thought to be the primary driving force in the loss of biodiversity worldwide. Developing countries are trying to counter act this massive lost of biodiversity by implementing national parks and biological reserves. Costa Rica is no exception to this rule. National development strategies in Costa Rica, since the early 1970s, have involved the creation of several National Parks and Biological Reserves. This has led to monitoring the integrity of and interactions between these protected areas. Key questions include: ‘‘Are these areas’ boundaries respected?’’; ‘‘Do they create a functioning network?’’; and ‘‘Are they effective conservation tools?’’. This paper quantifies deforestation and secondary growth trends within and around protected areas between 1960 and 1997. We find that inside of national parks and biological reserves, deforestation rates were negligible.
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