Integrity and isolation of Costa Rica's national parks and biological reserves: examining the dynamics of land cover change.

Sánchez-Azofeifa , G.A., G.C. Daily, A.P. Pfaff and C. Busch. 2003. Integrity and isolation of Costa Rica's national parks and biological reserves: examining the dynamics of land cover change. Biological Conservation 109: 123-135. Keywords: 2a, 6a, 10

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