Biodiversity Environmental Explorations
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Transcript of Biodiversity Environmental Explorations
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Biodiversity
Environmental Explorations
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Which do you like better?
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A B
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A B
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What do you think biodiversity means?
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Bio =
Biodiversity
What does “Bio” mean?
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Biodiversity
Diversity = Variety
What does “Diversity” mean?
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Biodiversity is the variety of life on Earth and the essential
interdependence of all living things
• Scientists have identified more than 2 million species. Tens of millions -- remain unknown
• The tremendous variety of life on Earth is made possible by complex interactions among all living things including microscopic species like algae and mites.
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There are 3 components of biodiversity
1. Diversity of genesChihuahuas, beagles, and rottweilers are all dogs—but they're not the same because their genes are different.
Chihuahua Beagle
Rottweilers
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Diversity of speciesFor example, monkeys, dragonflies, and meadow beauties are all different species.
Saki Monkey Golden Skimmer Meadow Beauty
There are 3 components of biodiversity
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Variety of ecosystemsPrairies, Ponds, and tropical rain forests are all ecosystems. Each one is different, with its own set of species living in it.
Paines Prairie
Hoh Rain Forest
Florida Sand hill Pond
There are 3 components of biodiversity
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Which is more diverse?
A B
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Which is more diverse?
A B
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Which is more diverse?
A B
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A B
Which is more diverse?
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A B
Which has more cultural diversity?
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Which has more biodiversity?
A B
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Which has more biodiversity?
A B
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Biodiversity has Intrinsic Value
Intrinsic Value = Something that has value in and of itself
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Biodiversity also has utilitarian Value
Utilitarian Value = the value something has as a means to another’s end.
Utilitarian values include:• Goods• Services• Information
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What do we get from biodiversity?
OxygenFood
Clean WaterMedicine
AestheticsIdeas
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Should we be concerned about biodiversity?
What we know: The Earth is losing species at an alarming rate
Some scientists estimate that as many as 3 species per hour are going extinct and 20,000 extinctions occur each year.
when species of plants and animals go extinct, many other species are affected.
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Threats to biodiversity
Habitat destructionPollution
Species IntroductionsGlobal Climate Change
Exploitation