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Costa Rica's payment for environmental services program: intention, implementation, and impact. 

Sánchez-Azofeifa, G Arturo; Pfaff, Alexander; Robalino, Juan Andres; Boomhower, Judson P (Conserv Biol, 2007-10)
We evaluated the intention, implementation, and impact of Costa Rica's program of payments for environmental services (PSA), which was established in the late 1990s. Payments are given to private landowners who own land ...
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High and far: biases in the location of protected areas. 

Joppa, Lucas N; Pfaff, Alexander (PLoS One, 2009-12-14)
BACKGROUND: About an eighth of the earth's land surface is in protected areas (hereafter "PAs"), most created during the 20(th) century. Natural landscapes are critical for species persistence and PAs can play a major role ...

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AuthorPfaff, Alexander (2)Boomhower, Judson P (1)Joppa, Lucas N (1)Robalino, Juan Andres (1)Sánchez-Azofeifa, G Arturo (1)Date Issued2007 (1)2009 (1)TypeJournal article (2)Subject
Conservation of Natural Resources (2)
Ecosystem (2)Bias (Epidemiology) (1)Costa Rica (1)Forestry (1)International Cooperation (1)Ownership (1)Public Policy (1)Time Factors (1)United States (1)... View MoreAffiliation of Duke Author(s)
Duke (2)
Duke Population Research Center (2)Duke Population Research Institute (2)
Economics (2)
Sanford School of Public Policy (2)
Trinity College of Arts & Sciences (2)
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