311DCh54 - Ch. 54 pg. 1186 Ecosystem consists of all...

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Ch. 54 pg. 1186 Ecosystem – consists of all organisms living in a community as well as all the abiotic factors with which they interact Primary producers – trophic level that ultimately supports all others consists of autotrophs Primary consumers – herbivores Secondary consumers – carnivores Tertiary consumers – other carnivores Detritivores – decomposers; consumers that get their energy from detritus (nonliving organic material) Primary production – the amount of light energy converted to chemical energy by autotrophs during a given time period Gross Primary Production (GPP) – amount of light energy that is converted to chemical energy by photosynthesis per unit time Net Primary Production (NPP) – equal to gross primary production minus the energy used by the primary producers for respiration (R) Limiting nutrient – element that must be added in order for production to increase in a particular area; in marine production it is usually phosphorous or nitrogen; Iron Cyanobacteria
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This note was uploaded on 02/01/2011 for the course BIO 311D taught by Professor Reichler during the Spring '08 term at University of Texas.

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311DCh54 - Ch. 54 pg. 1186 Ecosystem consists of all...

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