{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

February 12 - Economic environmental o People –...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
February 12, 2010 Exam next Friday Review session wed 8:30 in Mahar Invasive Species Definition – a non indigenous living thing that adversely affects the places it invades ecologically or economically Two high profile examples o Zebra mussel – used to weigh down ships, the larva forms got flushed out of the boat. They can reproduce very rapidly. They just need a hard service to hold on to. They cost half a billion dollars to control. They fill up the pipes and rapidly reproduce o Kudzo – plant, chokes out plants, from Asia How they arrive – non indigenous o Accident – zebra mussels o Intentional– kudzu – used to act as a “fence”…OOPS Cultural Food Recreational
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Economic environmental o People – transporting living things They do not plan to release them to the wild o Wooden shipping crates • Costs o Environmental – loss of native species 49% of imperiled species negatively affected by indigenous species o Economic 50,000 non indigenous species in the U.S. $137 billion annual cost (due to damages, losses, and control measures) Grant ragweed (looks like pot) – can reduce corn and soybeans by >50%, causes ragweed. Weed – a plant that has some negative economic effect • Control o Introduce a predator to the invasive species o Hunt/cut down/dig up/spray with pesticides...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online