Documents the U.S. as a leader in the diversity of freshwater species, summarizes the conservation status of freshwater species by group, identifies freshwater biodiversity hotspots, and describes conservation solutions
By highlighting 12 invasive species that have been especially destructive, this seminal report encapsulates the threat to biodiversity posed by alien species and describes conservation solutions to help stem the mounting crisis
This 1994 analysis shows how the Natural Heritage Network serves as an exceptional source of information on the biological diversity of regions, states, provinces, and countries.