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Invasive Species

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RS

Rob Slider

Transcript

Make sure you had:

Erosion & Nutrient loss

(write down if you missed them)

Making tough choices

INVASIVE SPECIES

When humans introduce an organism to a new area, they risk harming the ecosystem

Your "Do Now" 6/01

Native species: an organism that is naturally found in an area

CH 16 Notes #3: Deforestation & Invasive Species

Agenda 6/01

Examples of invasive species in Michigan

Gypsy moth

Zebra mussel

Now you will investigate the effects of invasive organisms on the Michigan & the Great Lakes!

Sea lamprey

How invasive species get into a natural area

Often, humans bring in invasive species either accidentally or on purpose

  • Notes: Deforestation & Invasive Species
  • Invasive species activity (pairs)
  • Last day for make-up work!

Tree of Heaven

  • Take a paper from up front
  • Answer 1-5
  • Study for your quiz
  • Fill in Learning Targets After quiz

BIG PICTURE:

  • We know that organisms in ecosystems are connected
  • We also know that if these connections are disrupted, it could change whole ecosystems
  • AND we know global warming and pollution are two ways humans have interrupted these connections...

Invasive species: an organism that is not naturally found in an area AND will damage the natural ecosystem

Problems in Florida with Invasives

Deforestation: complete removal of trees/forest in an area

Now we'll look at 2 more ways that humans can impact an ecosystem:

  • Deforestation
  • Invasive Species

Brown Tree Snakes in Guam

BIG IDEA: Deforestation is another human activity that changes ecosystems

Coming soon...?

Deforestation usually happens so people can: farm, build homes, and sell timber

KEY POINT: Deforestation is another human activity that negatively affects ecosystems

What makes a species invasive?

Invasive species often have no predators so they can so they can outcompete native species, changing ecosystems

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