This 72-page report answers the call for stronger ecological performance standards for guiding the wetland mitigation process. Here we present two methods for setting those standards: a) a watershed approach and b) an approach based on ecological integrity assessment methods.
A comprehensive analysis of the conservation status of the amphibians of North, Central, and South America and the Caribbean, where nearly two out of every five amphibians are threatened
This working ecological classification summarizes nearly 700 terrestrial ecological systems of Latin America and the Caribbean, and describes applications of these systems for conservation assessment, ecological inventory and monitoring, land management, and other uses.
The report presents the most detailed study of its kind ever carried out, in which scientists identified 12 previously unknown centers of endemism — areas that safeguard species found nowhere else in the world — in the Eastern Andean slope and Amazon basin of Peru and Bolivia. The report also illustrates distribution maps for 782 endemic species of plants, mammals, amphibians, and birds in unprecedented detail.
A comprehensive assessment of aquatic biodiversity across the entire Upper Mississippi, including a complete classification of aquatic systems and identification of 22 areas of freshwater biodiversity significance.
Nearly 600 terrestrial ecological systems in the United States, southern Alaska, and adjacent areas of Mexico and Canada are summarized in this report, which introduces and outlines the conceptual basis for a mid-scale classification unit: the ecological system.
This state-by-state analysis of U.S. biodiversity ranks all 50 states on several key biological characteristics, including diversity of species, endemism, levels of rarity and risk, and species already lost to extinction.
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
A comprehensive listing and description of all natural plant communities (588 associations) in the Midwest, using the concepts of the U.S. National Vegetation Classification system.