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23 Cards in this Set
- Front
- Back
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4 Ecological Layers
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Atmosphere (gas)
Hydrosphere (water) Lithosphere (crust) Ecosphere (Where Life Exists) |
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2 Parts of the Atmosphere
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Troposphere (17km)
Stratosphere (17-48 km) |
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Definition of Ecology
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The Study of Life
The Study of Organism's Home and the relationship between that organism & the environment |
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Definition of Species
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Group of organisms, look alike; interbreed
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Definition of Population
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all members of same species living together at same time/place
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Definition of Community
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Many populations living together at same time/place
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Definition of Ecosystem
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Several Communities interacting with each other and the abiotic environment at the same time/place
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Energy Flow
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From sun into environment as high quality energy, out of ecosystem as low quality heat energy
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Material Cycles
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abiotic nutrients recirculate in the ecosystem that travel in a closed cycle
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Biogeochemical Cycle
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Nutrients cycled from rock or atmosphere to living components and back.
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Law of Conservation of Matter
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Matter can be altered; but can not be created nor destroyed
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First Law of Energy
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Energy can not be created nor destroyed. Can be converted from one form to another
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Second Law of Energy
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Conversions result in energy lost as heat. [entropy]
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Gross Primary Production
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Total amount of solar energy converted to biomass per time period
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Net Primary Production
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Amount of energy stored by a plant and available to a consumer per unit of time (kcal/m2/yr)
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Law of Tolerance
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Individuals differ in ability to tolerate each survival factor in an environment. If upper/lower limits are exceeded, can result in death!
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Competitive Exclusion Principle
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If two species occupy same habitat and have same role, one will force the other into extinction
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Environmental Resistance
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Biotic + Abiotic factors combine to limit population growth
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Carrying Capacity
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#s of individulas the environment can support. Determined by food, water, nesting sites, cover, climate, space, etc.
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Definition of Succession
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is orderly and often predictable replacement of one community by another in the absence of a disturbance
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Definition of Biotic Potential
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ability to reproduce max # of offspring. genetically determined/environmentally realized
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Potential Energy
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Energy in Object at Rest
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Entropy
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Disorganization of Heat Energy... Chaos!
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