Productivity

Productivity

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Unformatted text preview: total biomass. The number of individuals is the standing stock. The rate of production and the rate of consumption are important. The rate of consumption determines the shape of the standing stock (i.e. pyramid, upside pyramid, etc.) Main source of carbon in the oceans is atmospheric in the form of CO2, and respiration. Used in photosynthesis, shells (as CaCO3) Nitrogen: Atmospheric (N2) BUT needs to be fixed by bacteria Phosphorus: Weathering Gets deposited Slow cycle through geological time Types of study: Experimental and Observational Experimental Control variables Advantages: more specific, repeatable, isolate variable, can be cheaper (esp. in marine science), more efficient larger sample sizes (which helps the more reliable stats, and gives larger base for scope of inference) Disadvantages: impossible to see interactions on large trophic l...
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This document was uploaded on 03/23/2014 for the course BIOL 403 at Georgetown.

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