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Invasive Species Spread

Invasive Species Spread. Photo Credit: Simon Stump. Bell Ringer. Find the slope of a line that goes through the points (4, -3) and (8, -1). . Bell-Ringer #2. What is an invasive species ?. The Cane Toad, Bufo marinus. Native to South and Central America, and as far north as Texas.

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Invasive Species Spread

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  1. Invasive Species Spread Photo Credit: Simon Stump

  2. Bell Ringer • Find the slope of a line that goes through the points (4, -3) and (8, -1).

  3. Bell-Ringer #2 • What is an invasive species?

  4. The Cane Toad,Bufomarinus • Native to South and Central America, and as far north as Texas. • Large (up to 2 kg). • Very poisonous. • Nocturnal. • Voracious predators. • Lay between 8,000-30,000 eggs at a time. Photo Credit: Simon Stump

  5. Cane Toads in Australia • Introduced in the 1930s to control pests, in Gordonvale (North East Australia). • Have spread around Australia. • Predators cannot survive their toxins. • They are outcompeting native species. Photo Credit: Simon Stump

  6. The Spread Across Australia Images by Froggydarb at the English language Wikipedia

  7. For today’s activity… • You will use survey data to try to understand the spread of Bufomarinus in Australia. Photo Credit: Simon Stump

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