13. Biological Invasions

13. Biological Invasions - LECTURE 13 BIOLOGICAL INVASIONS...

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L ECTURE 13 B IOLOGICAL I NVASIONS L ECTURE 13 B IOLOGICAL I NVASIONS Glassy-winged Sharpshooter Glassy Glassy -winged Sharpshooter winged Sharpshooter and the Fate of the California Grape Industry and the Fate of the California Grape Industry and the Fate of the California Grape Industry Hemimetabolus Piercing-sucking mouthpart
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White House Briefing Room White House Briefing Room “Vice President Announces Funding To Help Protect California Grape Industry from Invasive Pest” “Vice President Announces Funding To Help Protect California Grape Industry from Invasive Pest” Friday, June 23, 2000 Friday, June 23, 2000 “The glassy-winged sharpshooter, a non- native species of leafhopper, is responsible for spreading the bacterium causing Pierce’s Disease, which affects grapes, tree fruits, almonds, and many other crops. There is no treatment for the disease, which reduces fruit production and kills infected plants.” “The glassy-winged sharpshooter, a non- native species of leafhopper, is responsible for spreading the bacterium causing Pierce’s Disease, which affects grapes, tree fruits, almonds, and many other crops. There is no treatment for the disease, which reduces fruit production and kills infected plants.”
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L ECTURE G OALS L ECTURE G OALS •What is meant by biological invasions and how do they occur? •How do biological invaders impact their new homes (i.e., areas)? •Why are biological invasions important to Californians? •Biological invasion: pest species; risks of beneficial insects.
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What is meant by biological invasion? What is meant by biological invasion? The geographical expansion of a species into an area not previously occupied by that species. From a donor area to a recipient area.
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How important are biological invasions in the USA? How important are biological invasions in the USA? What are the costs of biological invasions? control tactics are costly marketable goods are lost export markets are impacted How many non-indigenous invaders have not yet established themselves? What would their success as invaders cost US businesses?
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How important are biological invasions in California? How important are biological invasions in California? More than 2,300 exotic species reside in the state. This includes 1,025 plants, 42 freshwater fish, 11 mammals, 9 birds and 208 invertebrates. Who deals with biological invaders in our state: California Department of Food and Agriculture (CDFA).
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How do biological invasions occur? How do biological invasions occur? Barriers are overcome, and dispersal occurs. Barriers may be: physical biological Note: What are the factors that regulate populations (look at lecture 10 on population biology).
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How do biological invasions occur?
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This note was uploaded on 12/07/2009 for the course ECON 19993 taught by Professor Helms during the Spring '09 term at UC Davis.

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13. Biological Invasions - LECTURE 13 BIOLOGICAL INVASIONS...

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