Perspectiva del Patrimonio Mundial de la UICN 2014 : evaluación sobre la conservación de todos los sitios naturales del Patrimonio Mundial
2015
Natural World Heritage sites are internationally recognized as having the highest global conservation significance and include iconic places such as the Serengeti, Great Barrier Reef and the Galapagos Islands. These renowned sites offer crucial insight into the successes and challenges on the frontlines of conservation, but only about half of the natural sites have been regularly monitored through the main monitoring mechanisms of the World Heritage Convention.