1.9 + 1.10 trophic levels + energy flow and the 10% rule
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7 Terms
1
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trophic level catagories
producers → primary consumers →secondary consumers → tertiary consumers
2
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primary producer examples
plants, phytoplankton
3
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trophic pyramids
* pyramids of numbers
* don’t take size into consideration
* can be inverted
* don’t take size into consideration
* can be inverted
4
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pyramids of biomass
* snapshots in time
* represent current total living biomass in an ecosystem
* represent current total living biomass in an ecosystem
5
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pyramids of productivity (energy)
* NEVER inverted
* 90% energy lost between each transfer
* 90% energy lost between each transfer
6
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first law of thermodynamics
energy can neither be created nor destroyed
7
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the 10% rule
* ecological efficency
* 10% of energy passed from one trophic level to the next
* 90% lost as heat, metabolism, or cellular respiration (2nd law of thermodynamics)
* 10% of energy passed from one trophic level to the next
* 90% lost as heat, metabolism, or cellular respiration (2nd law of thermodynamics)