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Ecosystem Energetics & Productivity
Ecology
11
Biology
Undergraduate 3
04/15/2014

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Cards

Term
Priamary Productivity
Definition
Rate of energy conversion by photosynthesis to organic compounds
Term
A.G. Tansley
Definition
Coined the term ecosystem
Term
4 Biological Components
Definition

Autotrophs

Heterotrophs

Detritus

Decomposers

Term
Abiotic
Definition

Energy, minerals, organic compounds, water

Driving Force of Earth's ecosystem

Term
Biotic
Definition
Organisms can constrain and modify the structure and function ecosystems
Term
Structure
Definition

Components of an ecosystem

(producers, herbivores, carnivores)

Term
Function
Definition

Ecosystem processes

(cycling of matter and use of energy via photosynthesis respiration, biogeochemical cycling)

Term

GPP

Gross Primary Product

Definition
Total rate of photosynthesis or energy assimilated by autotrophs
Term

NPP

Net Primary Product

Definition
Rate of energy storage as OM after respiration
Term
Secondary Production
Definition
Production by consumer organisms
Term
Standing Crop Biomass
Definition
Accumulated organic material in a given area per unit time
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