Chapter 10: Biodiversity What is biodiversity? How many species are known to scientists? Total estimated? What is the most abundant class of life? 3 LEVELS OF BIODIVERSITY 1. 2. 3. BENEFITS OF BIODIVERSITY How are each of these important? a. Ecosystem connections Keystone species: b. Population Survival c. Medical, Industrial, Agricultural d. Ethics, Aesthetics, Recreation Ecotourism: Name: ________________________ 10-2 Biodiversity at Risk EXTINCTIONS mass extinction: Example: What risks make a species likely to become extinct? Why will rats and cockroaches not become extinct? endangered species: threatened species: MAJOR HUMAN CAUSES OF EXTINCTION 1. 2. 3. 4. AREAS OF CRITICAL BIODIVERSITY Endemic species: Tropical Rain Forest Coral Reefs and Coastal Ecosystems Islands Biodiversity hotspots: Hotspots in the US= 10-3 Future of Biodiversity SAVING SPECIES Captive-Breeding Programs Preserving Genetic Material Zoos, Aquariums, Parks, and Gardens PRESERVING HABITATS AND ECOSYSTEMS Conservation Strategies: LEGAL PROTECTIONS US Laws Endangered Species Act: 1st provision: 2nd provision: 3rd provision: 4th provision: Species Recovery Plan habitat conservation plan: INTERNATIONAL UNION FOR THE CONSERVATION OF NATURE AND NATURAL RESOURCES (IUCN) What does this organization do? CITES (Convention on International Trade in Endangered Species) UNITED NATIONS CONFERENCE ON ENVIRONMENT AND DEVELOPMENT EARTH SUMMIT Biodiversity Treaty: PRIVATE CONSERVATION EFFORTS List organizations involved in protecting species.