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Energy Flow Through Ecosystems definitions
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Gross Productivity
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Gross Productivity
Total energy initially captured by an organism, representing the starting point for energy flow in ecosystems.
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Terms in this set (14)
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Gross Productivity
Total energy initially captured by an organism, representing the starting point for energy flow in ecosystems.
Gross Primary Productivity
Total energy captured by primary producers, often nearly equal to the energy they can use due to minimal waste.
Gross Consumer Productivity
Total energy captured by consumers from their food, before accounting for losses as waste and heat.
Assimilated Energy
Portion of captured energy actually used by an organism for cellular respiration and biomass production.
Biomass
Total mass of living matter, either for an individual or a group, available for growth, reproduction, or consumption.
Net Productivity
Energy available for new biomass after subtracting respiration from assimilated energy; supports the next trophic level.
Net Primary Productivity
Amount of energy in primary producers available for growth and consumption by higher trophic levels.
Net Consumer Productivity
Energy in consumers available for their growth and for transfer to organisms at higher trophic levels.
Respiration
Process using assimilated energy for metabolic needs, resulting in energy loss as heat and not available for biomass.
Net Production Efficiency
Percentage of assimilated energy converted into new biomass within a single organism or trophic level.
Trophic Efficiency
Percentage of energy transferred from one trophic level’s net productivity to the next, typically around 10%.
Trophic Level
Position in a food chain, such as primary producer or consumer, indicating an organism’s role in energy transfer.
Secondary Productivity
Alternative term for consumer productivity, focusing on energy captured and used by consumers.
Energy Efficiency
Measure of how effectively energy is used or transferred within an ecosystem, encompassing several efficiency types.