Chapter 51, "Ecosystems," introduced you to the study of ecosystems and their individual components. These ecosystem parts interact in fine balance to create a viable environment for a wide variety of life. The dynamics of energy flow and nutrient cycling are easily disturbed by human activity and the following set of sites delves into research and introduces you to resource sites for further information regarding ecological study and the preservation of our planet.
51.1 Energy Flow and Trophic Structure
Sierra Nevada Ecosystem Project Report
This site contains the 1996 report to Congress filed by the Sierra Nevada Ecosystem Project. This project was intended to provide a scientific review of the remaining old growth in the national forests of the Sierra Nevada in California, and to study the entire Sierra Nevada ecosystem.
Keywords: ecosystem, Sierra Nevada Ecosystem Project, research
This article from Scientific American magazine, by Paul Epstein, discusses global warming and its effect on the ecosystem and how such effects can have an impact on human health.
Keywords: global warming, human health, ecosystems
The "Understanding Lake Ecology" site explores a wide variety of ecological studies and theories in the field of limnology. Follow the links to the "Water on the Web" home to learn about this NSF-supported clearinghouse on the ecology of other waters on the Earth.
Keywords: limnology, energy flow, research
National Center for Ecological Analysis and Synthesis
This organization's site is an excellent resource for ecological information about California. Follow the links to learn about current ideas in ecological analysis and planning.
Keywords: ecology, National Center for Ecological Analysis and Synthesis, research
World Resources Institute
The World Resources Institute is another organization that focuses on the state of the worlds ecology and the exploitation of nonrenewable resources. Follow links throughout the site to see how ecological policy making and research is handled on an international level.
Keywords: ecosystem, World Institute, climate
Wetland Biogeochemical Database
51.2 Biogeochemical Cycles
Sponsored in part by the Environmental Protection Association (EPA), the Wetland Biogeochemical Database collects and compiles biogeochemical information on wetlands in the United States. Follow the "Research Projects" link for an overview of biogeochemical cycles.
Keywords: biogeochemical database, research, ecology
Global Nitrogen Cycles
The global biogeochemical nitrogen cycle is the primary source of organic nitrogen, which all organisms require for the synthesis of nucleic acids and proteins. This Ecological Society article provides a great overview of the impact of increased nitrogen cycling upon our ecosystems and how human activity sometimes causes these increases.
Keywords: nitrogen cycling, ecology, research
Carbon Cycle Science
Understanding global carbon cycles is of the utmost importance to our ability to predict future climate change. At the Carbon Cycle Science Initiative site you can learn about the current data on carbon cycling, and what this group has done to increase our understanding of the impact of carbon cycling for our environment.
Keywords: research, carbon cycling, climate
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