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150packet Revised 2011.pdf.edu

150packet Revised 2011.pdf.edu - Environmental Biology 150...

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1 Environmental Biology 150 Richard E. Terry 259 WIDB 422 2283 [email protected] Textbook: Environmental Science: Toward a Sustainable Future by Wright and Boorse 2 Science Science is specialized knowledge derived from observation, study, and experimentation ... Environment The environment is that which surrounds. 3 The application of many disciplines to the study and management of the environment. Ecology: Ecosystem: Environmental Science
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2 4 Resources Renewable Nonrenewable 5 Resources: Preservation of resources: Conservation of resources: 6 How Stewardship Is Demonstrated Recognition that a trust has been given. Responsible care for something not owned. Desire to pass something on to future generations.
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3 Easter Island Society fails to care for the environment and sustain it. Population increase beyond carrying capacity. Disparity between rich and poor widens. How To Prevent a Global Version of the Easter Island Disaster Understand how the natural world works Understand how human and natural systems interact Accurately assess the status and trends of crucial natural ecosystems Establish long-term sustainable relationships with the natural world Ecology of man Needs: -Air, water, food, shelter, clothing, energy, tools, etc. Wants: -Conveniences, luxuries, cars, etc. More and larger of the above
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4 The Global Environmental Picture Rapid human population growth and increasing consumption per person Decline of vital life-support ecosystems Global atmospheric changes Loss of biodiversity Global Atmospheric Changes Three Unifying Themes Sustainability Stewardship Sound science
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5 Four Dimensions to Sustainable Development Environmental Social Economic Political 14 The Scientific Method A method of inquiry used in scientific research and experimentation. The method requires objectivity -- preconceived ideas or views must not influence the research. The method requires acceptability of the results -- are the results reproducible? 15 The Scientific Method 1. 2. 3. 4. 5.
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6 How the Process of Science Works The Environmental Movement Rachel Carson: Silent Spring Effect of DDT in the food chain 18
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7 19 Environmental Regulation 20 Political Systems 21 Environmental Regulation How do “environmentalists” and “polluters” influence environmental regulation?
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8 22 No unreasonable risk: No risks: Risk-benefit balancing: Standards based on best available technology: Cost-benefit balancing: Mechanisms of setting environmental regulations 23 24 The Biosphere
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9 25 The Biosphere Environment - Ecology - Ecosystem - Community - Population - 26 Terminology Biotic - Abiotic - Detritus - Organic - Inorganic - Autotrophy - Heterotrophy - Decomposition - 27 Energy and Carbon Movement Producers: Photosynthesis 6CO 2 + 6 H 2 O C 6 H 12 O 6 + 6O 2 light
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10 28 Energy and Carbon Movement Consumers: Heterotrophs - use chemical energy of carbon oxidation C 6 H 12 O 6 + 6O 2 6CO 2 + 6 H 2 O + energy Cell respiration Global Biomes Biomes include groups of related ecosystems governed by climatic conditions. A biome contains aquatic and terrestrial ecosystems typically found within a given climate regime.
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