Approximately 2.5× 106 square kilometers of the Amazon forest are currently degraded by
fire, edge effects, timber extraction, and/or extreme drought, representing 38% of all …

Despite its relevance to contemporary biodiversity conservation, the ecological mechanisms
controlling nonrandom species replacements and biotic homogenization of native biotas …

The fragmentation of forests is a dominant human impact worldwide with major implications
for the conservation and management of ecosystems. Although many studies have …

Ecotourism is a useful concept, but not a very well defined one. It has been debated in
theory and attempted in practice for nearly two decades. Its key goal is to reduce the net …

The Eastern Arc Mountains of Tanzania and the Atlantic Forest of Brazil are two of the most
fragmented biodiversity hotspots. Species–area relationships predict that their habitat …

Forest corridors are often considered the main instrument with which to offset the effects of
habitat loss and fragmentation. Brazilian forestry legislation requires that all riparian zones …

Mega hydropower projects in tropical forests pose a major emergent threat to terrestrial and
freshwater biodiversity worldwide. Despite the unprecedented number of existing, under …

Predicting when future species extinctions will occur is necessary for directing conservation
investments but has proved difficult. We developed a new method for predicting extinctions …

Expansion of agriculture is a principal driver of biodiversity losses in the tropics, prompting
suggestions that plantations should be made more hospitable to wildlife. Such “wildlife …

Amazonia (sensu lato) is by far the largest tropical forest region, but has succumbed to the
highest absolute rates of tropical deforestation and forest degradation, driven by rapid …