Overview of three research programs including determining levels of mercury at selected sites in water, sediment and fish, mercury emissions into the atmosphere, and mercury cycling in the Everglades National Park, Florida.
An effort focused on encouraging the health of resident and migratory pollinating animals in North America. USGS participates in the leadership of this effort.
Briefly describes research efforts to better understand nutrient dynamics and biogeochemical cycling in ecosystems and how these properties are altered by large-scale human activities.
This Nutrients National Synthesis Project site on the U.S. study of nutrients, especially nitrogen and phosphorus, as contaminants in high concentrations links to an overview, study team, featured reports, publications, and national datasets.
Geographical isolation of the Hawaiian Islands has resulted in the evolution of endemic species unique in the world. Research at the Center aims at preventing the further extinction of these species. Links to projects, publications and other data.
A synthesis of the Mineral Resources Program's past and future research directions in the western U.S. on metal contamination due to mineral deposits and mining and the environmental effects on living organisms. Chapters 1, 4, and 6 as PDF files.
Descriptions of projects and resources on wildlife population ecology at the Patuxent Wildlife Research Center with links to research activities, long-term programs, and resources and references.