The tensions between development and preservation of tropical forests heigh
ten the need for integrated assessments of deforestation processes and for
models that address the fine-tuned location of change. As Mexico's last tro
pical forest frontier, the southern Yucatan peninsular region witnesses the
se tensions, giving rise to a "hot spot" of tropical deforestation. These f
orests register the imprint of ancient Maya uses and selective logging in t
he recent past, but significant modern conversion of them for agriculture b
egan in the 1960s. Subsequently, as much as 10% of the region's forests hav
e been disturbed anthropogenically. The precise rates of conversion and len
gth of successional growth in both upland and wetland forests are tied to p
olicy and political economic conditions. Pressures on upland forests are ex
acerbated by the development of infrastructure for El Mundo Maya, an archae
ological and ecological activity predicated on forest maintenance, and by i
ncreased subsistence and market cultivation, including lands on the edge of
Mexico's largest tropical forest biosphere reserve. In this complex settin
g, the southern Yucatan peninsular region project seeks to unite research i
n the ecological, social, and remote sensing sciences to provide a firm und
erstanding of the dynamics of deforestation and to work towards spatially e
xplicit assessments and models that can be used to monitor and project fore
st change under different assumptions. (C) 2001 Elsevier Science B.V All ri
ghts reserved.