The rate at which new tissues are formed inproducers is the ecosystem&...
Net primary production is the rate at which all the plants in an ecosystem produce net useful chemical energy; it is equal to the difference between the rate at which the plants in an ecosystem produce useful chemical energy (GPP) and the rate at which they use some of that energy during respiration.
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The rate at which new tissues are formed inproducers is the ecosystem&...
Explanation:
Net primary productivity (NPP) is the rate at which new organic matter is formed by photosynthesis in producers after accounting for the energy lost through respiration. It is the difference between the rate at which energy is captured by producers through photosynthesis and the rate at which they use that energy for their own cellular respiration.
NPP is an important measure of ecosystem productivity because it represents the amount of energy available to support higher trophic levels. It is the energy that is passed on to herbivores, carnivores, and decomposers in the ecosystem.
Gross primary productivity (GPP), on the other hand, represents the rate at which energy is captured by producers through photosynthesis. It does not take into account the energy lost through respiration, and therefore overestimates the amount of energy available for higher trophic levels.
Net secondary productivity (NSP) is the rate at which new organic matter is formed by herbivores after accounting for the energy lost through respiration. It is the difference between the rate at which energy is consumed by herbivores and the rate at which they use that energy for their own cellular respiration.
Gross secondary productivity (GSP) represents the rate at which energy is consumed by herbivores. It does not take into account the energy lost through respiration, and therefore overestimates the amount of energy available for higher trophic levels.
In summary, NPP is the most accurate measure of ecosystem productivity because it takes into account the energy lost through respiration by producers. It represents the energy available to support higher trophic levels in the ecosystem.