Knowledge of the floristic composition, structure and conservation status of tropical forests is essential for their sustainable management and conservation, although this remains poorly documented in some tropical countries. Here, we investigated the plant species diversity, distribution and...

By 2009, Ghana was the second-ranked African producer after South Africa, and had become the world's ninth largest producer of gold, at some 3.8% of global production, up from 2.6% five years earlier. Gold production volumes and revenues rose significantly over the decade from 2000. Yet gold...