Designed as a collaborative venture between the Nature Conservancy and the World Wildlife Fund, the Freshwater Ecoregions of the World (FEOW) site provides a dynamic visual representation of the Earth's freshwater...

This interdisciplinary case study looks at the importance of energy considerations within food chains using the example of Steller sea lions along the western Alaska coast. The lesson could be used in high school or...

Created cooperatively by the University of Kassel and the GSF-National Research Center for Environment and Health in Germany, and maintained by Joachim Benz, this site currently contains 481 ecological models. Users can...