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Check In Biodiversity Numbers Analysis. Which genus is most underrepresented in IL biodiversity?. Which genus shows the greatest % representation in IL?. Which species in IL would be most affected by conversion of prairie & forest to urban?. Trophic Pyramid For IL. Bulldozer or Atom Bomb?.
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Which species in IL would be most affected by conversion of prairie & forest to urban?
State Barrier Fence of Western Australia • 3 Fences over 2,000 miles long • Built between 1901-1907 to contain invasive rabbit populations
Oryctolaguscuniculus • Introduced to Australia in 1859 by Thomas Austin • Responsible for 1 of 8 extinctions in Australia
Invasive Species • Introduced species(also called "non-indigenous" or "non-native") that adversely affect the habitatsthey invade economically, environmentally, and/or ecologically. • Such invasive species may be either plants or animals and may disrupt by dominating a region • Success of invasive species is due to a loss or absence of natural controls such as predators
Rattusrattus • Established on 90% of the world’s islands • Responsible for 1/3rd of all seabird extinctions
Bufomarinus • Introduced to Australia in 1935 to eat beetles attacking sugarcane • Secretes poison, reducing predation
Susscrofa • Brought to North America in 1500’s by Spanish • Have decimated Hawaiian herbivore and carnivore diversity • Fertile within 6 months. Litters of up to 13.
Dreissenapolymorpha • Introduced initially to Lake St. Clair (Huron-Erie connection) in 1988 • Carried in ballast water of ships • Filter filters clarify water, making young fish vulnerable to predators