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Ecosystem budget

Space where community interacts with the physical environment

Biogeochemical cycles

All steps of Carbon Cycle among the major global ecosystems, Steps of Nitrogen Cycle (Major bacterial reactions, flow and storage)

System budget

Input= Output + Internal Flow + Storage

Positive Feedback

Initial change causes a series of similar changes in the same direction leading to disruption and decline.

Negative Feedback

Initial changes sets off counter change that reestablish equilibrium.

Energy flow through trophic levels

Open systems have input and output of both energy and matter flowigh through and proceeds through various paths

Controls of biome differentiation

Climate (Moisture and Temperature)

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