The Chuquisaca and Tarija regions of Bolivia encompass one of the most dramatic shifts in flora and vegetation anywhere along the eastern Andes. But biological information for this area has remained very sketchy.

An interdisciplinary team of biologists surveyed the south-central Chuquisaca in May of 1995. They found that the region contains one of the largest remaining uninterrupted tracts of Bosque Tucuman-Boliviano wet forest, as well as a number of endemic species, but also suffers from heavy development pressures.