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1. Biodiversity

2. Biodiversity
• Bio – life, Diversity – differences
• Differences in life forms
– Genetic diversity
– Species diversity
– Ecosystem diversity

3. Genetic Diversity
• All organisms have different genes.

4. Species Diversity
• There are many different species on Earth.
• Members of the same species have similar
genes. They can interbreed.

5. Ecosystem Diversity
• Different regions have different ecosystems.
• Many different species live in an ecosystem.
They are all adapted to different niches.

6. Ecological Niche
• A ecological niche is a section of the
ecosystem that a species uses.
• In the Pacific NW ecosystem, salmon live in
the water and eat insects or other fish. At the
same time, trees grow on the land and absorb
nutrients from the ground. They are in the
same ecosystem but different niches.

7. Diversity
• Because every ecosystem has many niches,
organisms adapt to survive best within their
niche.