what is biodiversity? the variety of living things in a place worldwide: 2 - 30 million species...

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What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species • 900,000 insect species • 400,000 plant species • 10,000 bird species 20-30 plant species per m 2 in North American grasslands Where is Biodiversity? More tree species in 50 hectares than in all of North America in the Amazon

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Page 1: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

What is biodiversity?

The variety of living things in a place

Worldwide: 2 - 30 million species• 900,000 insect species• 400,000 plant species• 10,000 bird species

20-30 plant species per m2 in North American grasslands

Where is Biodiversity?

More tree species in 50 hectares than in all of North America in the Amazon

Page 2: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Exploring Biodiversity: Bugs Galore!

Page 3: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

• Kingdom

• Phylum

• Class

• Order

• Family

• Genus

• Species

Animalia

Chordata

Mammalia

Primate

Hominidae

Homo

Homo sapiens

Page 4: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Is Biodiversity constant?

Worldwide: Biodiversity “Hotspots”

Page 5: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Is Biodiversity constant?

Worldwide: Biodiversity “Hotspots”

Regionally: Land Use Differences

“Latitudinal Diversity Gradient”

Page 6: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Page 7: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Is Biodiversity constant?

Biodiversity is declining!

30% of species extinct by 2050

Worldwide: Biodiversity “Hotspots”

Regionally: Land Use Differences

“Latitudinal Diversity Gradient”

Habitat destruction

Page 8: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

70%

30%

Species Living in 2000

Extant

Extinct

HIPPO• habitat destruction• invasive species • pollution• human over population • over-harvesting

Page 9: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Exploring Biodiversity: Biodiversity Stock Market!

Page 10: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Why Is Biodiversity Important?

• May help increase ecosystem productivity– The more species you have the more

completely you can use the land’s resources– Certain species may help or allow other

species to grow

Page 11: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Why Is Biodiversity Important?

• May help ecosystem stability– More resistant to invasion– More resistant to disease– More resilient toward disturbances

Page 12: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Ecosystem Services

• Food, water, energy • Purify air and water• Potential medicines• Ecotourism• Seed dispersal• Pollination

Page 13: What is biodiversity? The variety of living things in a place Worldwide: 2 - 30 million species 900,000 insect species 400,000 plant species 10,000 bird

Ecosystem Services

• The economic value of all ecosystem services is estimated to be ~$3 trillion per year

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