Biodiversity is collapsing globally, both in numbers of species and individuals. According the U.N., out of 8 million wildlife and plant species on Earth, nearly 1 million are today risk extinction. Tropical forests are home to two thirds of the global terrestrial biodiversity (Global Forest Watch, 2018) and are hence hotspots for environmental conservation. However, given growing demographic pressure, involving local populations in environmental conservation projects is essential for the success of the project.