RESOURCES

Here are a number of web sites that provide information on the issue of Human Alteration of the Global Nitrogen Cycle:

Pfiesteria

• EPA Pfiesteria fact sheet (www.epa.gov/owow/estuaries/pfiesteria/fact.html)


• NC State Pfiesteria (www.pfiesteria.org); large site includes images and video, background information, nitrogen and oxygen data, real time data, publications, and links


• Univ of NC Pfiesteria site (www.unc.edu/depts/cmse/science/pfiesteria.html); essay titled "The Fuss over Pfiesteria" plus useful links


• Neuse River hotline (www.pamlico-nc.com/health.htm); for the public, includes essay titled "No Hysteria over Pfiesteria", open letter from Burkholder, newspaper article, links


• Univ MD estuary site (www.mdsg.umd.edu/fish-health/); large sets of short essays about fish health and toxic algae, and the Chesapeake Bay


• Harmful Algal Blooms (www.whoi.edu/redtide/); for the public, includes essays about HABs, photos


• Washington Post article (online.sfsu.edu/%7Erone/Environ/Cell%20From%20Hell%20pfiesteria.htm) titled "The Feeding Frenzy of a Morphing 'Cell From Hell'", includes Burkholder quotes


• www.agnr.umd.edu/pfiesteria/agpros.htm; Essay titled "The Agricultural Perspective: Agriculture and Its Relationship to Toxic Dinoflagellates in the Chesapeake Bay", Univ. of MD, Agriculture Dept.

Nitrogen Saturation

• 0verview (www.duke.edu/~mdw7/nitrogen/); excellent site includes figures you can use for class on N saturation; sources of N; microbial, physiological, and community responses; references


• Chronic N Amendment Experiment - Harvard Forest LTER (www.aber.sr.unh.edu/chronicn/hfintro.html); includes photos of plots plus data sets on foliar chemistry; litter, tree, and root biomass; litter decomposition; lysimeter N data, soils; mineralization and nitrification


• Public Power Institute (www.netl.doe.gov/coal/E&WR/air_q/docs/Saturation.PDF); shows their side of the argument


• EPA: N Saturated Forests in the U.S. (www.epa.gov/airmarkets/cmap/mapgallery/mg_n-satforests.html); US map showing saturated forests


• www.metrocast.net/~dougmac/papers/2003_Bioscience_Aber_et_al.pdf (Aber et al. 2003. Is Nitrogen Deposition Altering the Nitrogen Status of Northeastern Forests? BioScience 53: 375-389)


• Fenn et al. 1998. Nitrogen excess in North American Ecosystems: Predisposing factors, Ecosystem Responses, and Management Practices. Ecological Applications 8: 706-733. (www.sgcp.ncsu.edu/products/pubs/docs/ecolapplications.pdf)

Global Nitrogen Cycle

• World Resources Institute (http://pubs.wri.org/pubs_content_text.cfm?ContentID=1412); for the public title "Nutrient Overload: Unbalancing the Global Nitrogen Cycle"


• Frontiers in Ecology and the Environment (Vol. 1(5), 240-246) article by Townsend et al (www.med.harvard.edu/chge/frontiers2003.pdf); titled "Human Health Effects of a Changing Global Nitrogen Cycle", focus includes direct and indirect effects on humans


• ESA Issues in Ecology (www.esa.org/sbi/sbi_issues) includes Issues on Human Alteration of the Global Nitrogen Cycle: Cause and Consequence, Nonpoint Pollution of Surface Water with Phosphorous and Nitrogen, and Nutrient Pollution of Coastal Rivers, Bays, and Seas