Fisheries and natural resource managers and policymakers need more efficient procedures for identifying sources of variability in ecosystems (natural and manage

Over the past century, humans have molded the Colorado River to serve their own needs, resulting in significant impacts to the river and its ecosystems. Today,

Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sam