SPECIES EXTINCTION PRESENTED BY: Neenu, Doris, Thomas & Andrew

DEFINITION: Complete termination of a plant or animal species

CAUSES: NATURAL Natural Disasters Natural Selection HUMAN Deforestation – Lumbering Pollution – Air & Water Over fishing Coastal Development Acid Rain Introduction of new competing species Desertification – Global Warming -- Ozone Depletion -- Overpopulation -- Lack of International Agreements Expanding Agricultural Land --Pest & Predatory Control For Protection

IMPACT / CONSEQUENCES / RESULTS: ATMOSPHERE: - less photosynthesis (deforestation & lumbering) more CO 2 this causes ozone depletion HYDROSPHERE: - less vegetation allows for less transpiration of water into atmosphere

IMPACT / CONSEQUENCES / RESULTS: LITHOSPHERE: - Mass Wastage - Surface Erosion - Wind Erosion - Loss of soils as groundwater cover is lost

IMPACT / CONSEQUENCES / RESULTS: BIOSPHERE: -loss of oxygen generating organisms -Stability of ecosystems will be upset -Loss of biodiversity could result in eradication of entire species, which would threaten out food supply -For every plant lost due to extinction, 20 to 40 animals are threatened -Loss of genetic resources -Reduction of species mean diff. Species of plants for improving agriculture may be lost -Disruption or alteration of the food chain will impact food supply -Disruption of cultural icons or belief systems

POSSIBLE SOLLUTIONS & ASSESSMENTS SOLUTIONPRO’SCON’S Halting assault of biodiversity Less extinctionBusinesses will loose money More money into educational programs People will be more knowledgeable More money mean more taxes Banks should not provide funds for projects that destroy habitats Less loss of habitatsIndustries will loose money b/c some require to destroy in order to make money Selective loggingOnly some types of trees will be logged leading to less of that specific type of tree

EXAMPLES OF THIS ISSUE: GLOBAL BRAZIL – rain forests (Amazon Region) NORTHERN HEMISPHERE – lumbering, development, acid rain MARINE ECOSYSTEMS – threatened by pollution, over fishing & coastal development

EXAMPLES OF THIS ISSUES: REGIONALS CANADA – Pacific & Atlantic – gray whales - Queen Charlotte Island – Caribou - Great Plains – wolf, swift fox BC – Grizzly Bears - Bird Species, - Coho, Chinook Salmon, Steel Head Fish - Resident Orca Whales