1. Warm-up: “ Diversity may be the hardest thing to live with, and perhaps the most dangerous thing to live without.” –In terms of biology, why is diversity a dangerous thing to live without? TSSBAT: Explain the importance of biodiversity, as it pertains to ecosystem sustainability

5.  What does “Bio” mean? Bio diversity Bio =

6. Bio diversity What does “Diversity” mean? Diversity = Variety

7. There are 3 components of biodiversity  Diversity of genes Chihuahuas, beagles, and rottweilers are all dogs—but they're not the same because their genes are different.

8.  Diversity of species For example, monkeys, dragonflies, and meadow beauties are all different species Saki MonkeyGolden Skimmer Meadow Beauty

9. Variety of ecosystems Prairies, ponds, and tropical rain forests are all ecosystems. Each one is different, with its own set of species living in it.

10. What do we get from biodiversity? OxygenFood Clean Water MedicineAestheticsIdeas

11. 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.

12. Threats to biodiversity Habitat destruction Pollution Species Introductions Global Climate Change Exploitation

13. Number and variety of species on Earth(ecosystem) 1.4 million known species 10-100 million actual species

14. The high the biodiversity the more stable the ecosystem (food web) Corn field vs Rain Forest If one species is lost there will be others to step in.

15. 99 % of all species that have ever lived on earth are extinct Extinct--- When there are no individuals of a species left on the planet Mass extinction—caused by large global climate change

16. Causes of loss of biodiversity 1.) Habitat Destruction increase human population—need space to live and grow crops

17. 2.) Hunting—unregulated hunting can cause species extinction ex: passenger pigeons, buffalo 3.) Poaching---illegal hunting— usually for certain body parts ex: African Elephant—tusks River Dolphins--eyes

18. 4.) Exotic Species– a species that is not native to that region Can cause: --- disruption in food chains --- crowd out native species --- no natural predator –can overpopulate

19. Endangered Species Act (ESA) US Congress—1973 Designed to protect any plant or animal species from becoming extinct

20. Main Provisions to the ESA 1.) The US Fish and Wildlife Service must complete a list of all endangered and threatened species

21. 2.) Endanger and threatened animal species may not be caught or killed. Endangered or threatened plant on federal land may not be uprooted. No part of the endangered or threatened species may be sold or traded

22. 3.) The federal government may not carry out any project that jeopardizes endangered species. 4.) The US Fish and Wildlife Service must prepare a species recovery plan for each endangered and threatened species.

23. Ways to save biodiversity 1.) Captive breeding programs ex: zoos, wild animal parks, trout in a classroom 2.) Botanical Gardens 3.) Germ-Plasm Banks– store samples of genetic material from endangered species—plant (seeds) animals (sperm and eggs)

24. 4.) The Ecosystem Approach This “saves” whole systems instead of individual species because--- too many species to list and many species we do not even known about still should be saved. Also ecosystems are next to each other---when one goes the others will follow