4.1 The Nature Conservancy and tropical forest certification Fran Price 4.2 Biodiversity in the Peruvian Amazon Lucio Brotto, Josil Murray, Davide Pettenella, Laura Secco and Mauro Masiero 4.3 Impacts of certified logging on great apes Arnold van Kreveld and Ingrid Roerhorst 4.4 Conserving the world’s forests: steps along the journey George White 4.5 An indirect way to evaluate the impact of certification Marielos Peña-Claros and Frans Bongers 4.6 Exploring the impacts of certification systems Ben Cashore and Michael Vandenbergh
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