1. Why should we care?

2.  Diversity measured on three levels  Genetic  Species  Ecosystem

3.  The variation of the DNA in a species  How different is one individual from another?

4.  The number of species in an ecosystem  Scientists use this to measure overall biodiversity

5.  The variety of habitats in an area  Example: A river delta has fresh water habitat, brackish (fresh and salt) water habitat, and a salt water habitat in one area

6.  Population stability  Ecosystem stability  Natural Resources

7.  Variation in genes provides protection against disease  Ex: Tasmanian Devils, Jack Russell Terriers

8.  More species with redundant niches (another species can take its place on the food chain)  Ex: Sea Otters and Sardines

9.  High diversity leads to more biomass because they use more resources (light, water, minerals)  More: oxygen, food, medicine, beauty, and much more…

10.  HIPPO  H – Habitat Destruction  I – Invasive Species  P – Pollution  P – Population Growth  O – Overconsumption

11.  Changing a habitat to suit human needs  Ex) Dams destroy salmon habitats

12.  Any non-native species that out competes the native species  Ex) Himalayan blackberry vs. Washington native blackberry  Ex) Kudzu - https://www.youtube.com/watch?v=tiYrqucl2vghttps://www.youtube.com/watch?v=tiYrqucl2vg

13.  Changes a habitat so that animals cannot adapt or live  Ex) DDT  Ex) Global Warming from burning of fossil fuels

14.  More humans means more demand for:  Space  Food  Shelter  Fuel  Leads to more pollution and habitat destruction

15.  Individuals using more than they need to survive  USA makes up 5% of world population but produces 33% of CO 2