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7 Cards in this Set
- Front
- Back
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ecosystem
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consists of all the organisms living in the communit as well as all the abiotic factors which they interact
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gross primary production
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the amount of light energy that is converted to chemical energy by photosynthesis
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net primary production
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gross primary production minus the energy used by primary producers for respiration
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limiting nutrient
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the element that mus tbe added in order for production to increase in a particular
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secondary producton
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the amount of chemical energy in consumer food that is converted to their own biomass during a given period
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green hypothisis
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Plants have defenses against herbivores.
Nutrients, not energy supply, usually limit herbivores. Abiotic factors limit herbivores. Intraspecific competition can limit herbivore numbers. Interspecific interactions keep herbivore densities in check. |
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production efficiency
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the fraction of energy stored in food that is not used for respiration
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