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Title of notes: Loss of biodiversity p. 24 RS
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I’ll know I’ve got it when…
Learning target I can determine what causes the loss of biodiversity. Today I am… Learning about what threatens biodiversity . So that I’ll be able to… Understand the impact of biodiversity being lost. I’ll know I’ve got it when… I can explain the impacts of biodiversity loss on Trevor Browne campus and connect it to the world.
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Biodiversity Loss Biodiversity being lost happens naturally
Extinction occur one by one Fossil record shows 1 in every 1000 mammals would go extinct every 1,000 to 10,000 years Five mass extinctions have occurred in Earth’s history Mass extinction: global decrease in the diversity of life forms
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Other causes of biodiversity loss…..
Habitat change and loss Invasive species Pollution Overharvesting Climate change
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Habitat change and loss
Clearing forests by logging companies Removes food Removes shelter Removes other resources that organisms need to survive
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Invasive species Introduction of non-native species to an environment
Thrive in new environment Over populate because lack of predators and competition Cause some native species to go extinct Can cause economic damage Zebra mussel
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Pollution caused by industries
Chemicals, heavy metals, pesticides, and toxic chemicals Pollute water and air Poison and kill humans and wildlife Pollution caused by industries Cough! Cough!
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Overharvesting Hunt, fish, or harvest a species quicker than it can replenish Poaching overfishing Siberian Tiger population decline due to hunting Upset Siberian Tiger Poaching: illegal capture or killing an organism.
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Climate change Effects habitats Extreme weather events
Warming temperatures Increases the chance of plants and animals going extinct Environments are changing to quickly for organisms to adapt. Sad Polar Bear
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Something to ponder…… Are we looking at a sixth mass extinction?
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Loss of biodiversity cartoon p. 24 LS
Create a 4 slide cartoon showing loss of biodiversity Must have color Each slide must have a picture and words Create a character for your cartoon.
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