1. Biodiversity
Variety of life in an area that is determined by the number of different species in that area.
Richness of species

2. Three types of Biodiversity
Genetic
Species
Ecosystem

3. Genetic Diversity
The variety of genes or inheritable characteristics that is present in a population
Different traits
Increased the chance that some species will survive if the environment changes

4. Species Diversity Number of different species
Relative abundance in a community
As you move to the equator it increases

5. Ecosystem Diversity
The variety of ecosystems that is present in the biosphere
Interactions of organisms affect the development of a stable ecosystem

6. Biodiversity
Important?

7. Biodiversity Important? We depend on plants and animals
Provide us with food, clothing, energy, medicine and shelter

8. Indirect economic value
Green plants provide oxygen
Natural processes provide drinking water

9. Aesthetic Value

10. Unit 8
CHAPTER 5.2 AND 5.3

11. THREATS TO BIODIVERSITY
5.2
Extinction RATES
FACTORS THAT THREATEN BIODIVERSITY

12. CONSERVING BIODIVERSITY
5.3
NATURAL RESOURCES
PROTECTING BIODIVERSITY
RESTORING ECOSYSTEMS
LEGALLY PROTECTING BIODIVERSITY

13. 5.2 THREATS TO BIODIVERSITY
EXTINCTION RATES
BACKGROUND EXTINCTION
THE GRADUAL PROCESS OF SPECIES BECOMING EXTINCT
MASS EXTINCTION AT THE EQUATOR

14. 5.2 THREATS TO BIODIVERSITY
EXTINCTION RATES - HISTORY
BACKGROUND EXTINCTION - SLOW
THE GRADUAL PROCESS OF SPECIES BECOMING EXTINCT -SCIENTISTS ARE ALARMED
MASS EXTINCTION AT THE EQUATOR - ISLANDS

15. FACTORS THAT THREATEN
NATURAL RESOURCES – ALL MATERIALS AND ORGANISMS FOUND IN THE BIOSPHERE

16. FACTORS THAT THREATEN
NATURAL RESOURCES – ALL MATERIALS AND ORGANISMS FOUND IN THE BIOSPHERE
MINERALS, FOSSIL FUELS, NUCLEAR FUELS, PLANTS, ANIMALS, SOIL, CLEAN WATER, CLEAN AIR, AND SOLAR ENERGY

17. OVEREXPLOITATION
EXCESSIVE USE
BISSON
PIGEONS
OCELOT

18. DESTRUCTION OF HABITAT

19. Destruction of Habitat

20. Habitat Fragmentation

21. Edge Effects

22. Eutrophication
Pollution
Fertilizers
Animal waste
Sewage

23. Introduced Species Non native species On purpose or not
Exploit the environment

24. Consumption Rate
Higher in industrial countries then in less developed countries

25. Renewable vs. Nonrenewable
Solar energy, plants, animals clean water and air
Fossil fuels and minerals

26. Protection Biodiversity
In the U.S. we protect areas of interest
National parks
Biosphere Reserves
World Heritage sites
Buffer zones

27. Hot spots
Endemic – species that are only found in that specific geographic area
Critical levels of habitat loss

28. Hot Spots

29. Corridors between habitat fragments

30. Endangered Species Act
1973
Designed to legally protect species that were in danger of becoming extinct
Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) 1975
To preserve biodiversity for future generations