1. Invasive Species- How do they effect our ecosystem? Rosaura Moreno Biology 20-power point Dr. Sellers

2. What is an invasive species? “an invasive species is that (1)non-native (or alien) to the ecosystem under consideration and (2) whose introduction cause or is likely to cause economic or environmental harm, or harm to human health or other species.”

3. Synonyms: “non-native species” “Introduced species” “exotic species” “non-indigenous species” “alien species” “transplants” “invasive species”

4. The Problem! 1invasive species + 2 native extinctions __________________________________ Environmental epidemic

5. Statistics of invasive species Invasive (exotic or non-native) Plants and Animals

6. Who? Plants –Trees –Flowers –Bushes Animals –Aquatic –Terrestrial

7. Once upon a time…. How long have they been in existence? How where they introduced? Determining factors of historical existence?

8. Intentional introductions Economical prosperity Food Energy Biological control of pests Purple loosestrife Scotch Broom Flathead catfish mongoose

9. I didn’t do it! Long horned beetle Asian zebra mussel

10. “The Mighty Morphed Species” Why do they grow so rapidly? How bad is bad? Cross breeding! before after Lens culinaris Vicia sativa

11. “Don’t judge a book by its cover!” Who? When? What? How?

12. Plants are good for the environment, or are they? "3:1 rule: For every year you delay controlling an invasive plant infestation, it will take three years to regain control."

13. “The Dirty Dozen” Zebra Mussel Purple Loosestrife Fatheaded catfish Tamarisk Rosy wolfsnail Leafy Spurge

14. Cont. Green Crab Hydrilla Balsam wooly Adelgid Miconia Chinese Tallow Brown Tree snake

15. World War III Terrorist attack They go undetected The effects could be fatal It would be hard to fight back Viruses…. mishap's or intentional?

16. Conclusion “Prevention and additional introductions.” “Early Detection and eradication of new pests.” “Control and Management” “Protection and recovery of native species and ecosystem”.

17. Works cited Cieland,E.E and Mooney, HA. “The evolutionary Impact of Invasive Species.” Proceedings of the Untied States of America.V98 n.10 p.5446-51(my8,2001). General Science Index College of the Sequoias Library, Visalia, California. 19 Sept.2005. Melbourne, Melanie Cooper. “Alien Invasion”. New Scientist. V.172.no.2317.p.22(nov.17,2001). General Science Index College of the Sequoias Library, Visalia, CA.19 Sept. 2005. The Nature Conservancy. “Combating Invasive Species”. 22 September.2005. http://www.nature.org/initiatives/invasivespecies/about. http://www.nature.org/initiatives/invasivespecies/about Eco Pros. “Invasive Non-native species”. 22, september.2005. http://www..eco-pros.com/invasive-non- native_species.htmhttp://www..eco-pros.com/invasive-non- native_species.htm Union of Concerned scientist. “Invasive Species”. 22, September.2005. http://www.ucsusa.org/invasive_speices/invasive-speices-index.html. http://www.ucsusa.org/invasive_speices/invasive-speices-index.html Pratt, Robert J. “Invasive Threats to the American Homeland”. Spring 2004. v.34 ilp44(18). Copyright 2004 U.S. Army War College. http://web2infotrac.galegroup.com/itw/infomark/497/829/71747088w2/purl=rcl_EAIM_0http://web2infotrac.galegroup.com/itw/infomark/497/829/71747088w2/purl=rcl_EAIM_0 Polakovic, Gary. Los Angeles Times Main News. “Paradise Losing In Hawaii”. 2,January. 2003.A-1 Copyright 2003. http://wwwinfoweb.newsbank.com.http://wwwinfoweb.newsbank.com Google for images. http://images.google.com/images?q=invasive+U.S.+species&svnum=10&hl=en&lr=&start=20&sa=N http://images.google.com/images?q=invasive+animals&hl=en http://images.google.com/images?q=invasive+U.S.+species&svnum=10&hl=en&lr=&start=20&sa=N http://images.google.com/images?q=invasive+animals&hl=en Stein, Bruce A. and Stephanie R. Flack, eds.1996. America’s Least Wanted: Alien Species Invasions of U.S Ecosystems. The Nature Conservancy, Arlington, Virgina.