Vocabulary: National Science Educational Standards » Term: Life science K- 4 » Records: Organisms and their environments » ID: 272

Click image to see larger image	Past Distribution of the zebra mussel
Location	http://www.fws.gov/midwest/mussel/images/zebra_mussels_1988.html
Observations	This map of the United States shows the distribution of zebra mussels in 1988 (in red).
Explanations	After their introduction to the United States in 1988, Zebra mussels were present in small numbers in the Great Lakes region.
California Standards	Organism survival
National Standards	Human impact
Related NSF Exemplary Curriculum	Time-lapse
Related Sets	Invasion of the zebra mussel
Creative Commons License	This work is licensed under a Creative Commons Attribution-Share Alike 2.5 License.
Authors	Katie Hale khale92807@aol.com Biological Sciences, CSUF
Publisher	USGS Jun 26 2003

This material is based upon work that was supported by the National Science Foundation under Grant No. 0127164 to California State University Fullerton. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.