Vocabulary: National Science Educational Standards » Term: Life science K- 4 » Records: Organisms and their environments » ID: 271

	Invasion of the zebra mussel
Observations	This image set demonstrates the impacts of invasive species using the zebra mussel as an example.
Explanations	Zebra mussels were brought to North America in the ballast water of ships. Since 1988, the zebra mussels have pushed native freshwater mussels to near-extinction. The zebra mussel invasion is a great example of time delays.
California Standards	Organism survival
National Standards	Human impact
Related NSF Exemplary Curriculum	Time-lapse
Related Records	Zebra mussel current distribution Mussels in Lake Erie Past Distribution of the zebra mussel Zebra mussel impacts
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	CSUF Jul 08 2007

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.