BIO 213-F09 - Lecture 10 - Ecology

BIO 213-F09 - Lecture 10 - Ecology - Ecology, Climate...

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Unformatted text preview: Ecology, Climate Change, Population Growth Ecology The Study Of the Interaction Of Organisms And Their Environment OR The Study Of The Biosphere And Its Components The Biosphere Zones of the earth s soil, water, and air where living organisms are found Hydrosphere Lithosphere Atmosphere Components Of Ecosystem B i o t i c Living Producers Consumers Abiotic Nonliving Temperature, rocks, precipitation, wind Organism : an individual Population: A group of potentially interbreeding individuals of the same species occurring together in space and time Community : all populations in an ecosystem Ecosystem : The community and the physical environment Biosphere : All the ecosystems on Earth combined Three hundred trout are needed to support one man for a year. The trout, in turn, must consume 90,000 frogs, that must consume 27 million grasshoppers that live off of 1,000 tons of grass.-- G. Tyler Miller, Jr., American Chemist (1971) Categorizing Organisms By What They Eat Producers are eaten by: Primary consumers ( herbivores) which are eaten by: Secondary consumers ( carnivores ) which are eaten by: Tertiary consumers which are eaten by Quaternary consumers which are eaten by No Energy left!! Label terms at each level and give an example Biogeochemical Cycles Energy does not cycle through the ecosystem due to the laws of thermodynamics Many resource do biogeochemical cycles Includes the carbon cycle, nitrogen cycle, phosphorus cycle, etc The Carbon Cycle Carbon Dioxide Removed by: Photosynthesis Ocean sink Produced by: Humans!...
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This note was uploaded on 06/16/2010 for the course BIO 213 taught by Professor Lee during the Fall '08 term at Cal Poly.

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BIO 213-F09 - Lecture 10 - Ecology - Ecology, Climate...

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