Deforestation and fragmentation influence the microclimate, vegetation structure, and composition of remaining patches of tropical forest. In the southern Amazon, at the frontier of cropland expansion, forests are converted and fragmented in a pattern that leaves...

The Brazilian Amazon contains the largest remaining contiguous forest in the tropics, but also faces strong development pressures and one of the highest rates of deforestation in the world. In the 30 years since the murder of the rubber tapper leader Chico Mendes...