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16 Cards in this Set
- Front
- Back
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Net Primary Production
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The rate at which energy is bound or organic material created per unit area per unit time.
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Autotrophic Respiration
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Energy consumed by primary producers for their own growth and maintenance.
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Heterotrophic Respiration
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Rate of consumption of organic materials by heterotrophs. This includes decomposers.
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Net Ecosystem Production
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Net rate of organic matter accumulation in an ecosystem.
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Liebig's Law of the Minimum
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A plants growth is limited by the nutrient that is in the shortest supply.
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Annual actual evapotranspiration
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The total amount of water that evaporates and transpires off a landscape during the course of a year.
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Saprotrophic fungi
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Decomposing fungi that favor low pH and low nutrients. These are one of the few organisms that can degrade lignin.
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Bacteria consortium
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Bacteria united by biofilm. Together, produce enzymes for breakdown.
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Mycorhiza
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A root fungus with small thin roots that can obtain a lot of nutrients because of their structure (large surface area). These deliver nutrients to the plants. "Cheaper" to maintain than roots but can become parasitic if nutrients are scarce.
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Mineralization
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Microbial uptake of inorganic nutrients.
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Nutrient spiraling
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The cycling of nutrients as they are moved by a stream. There must be a certain stream length for the nutrients to be able to finish their cycle.
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Carbon Sink
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Net accumulation of carbon within a defined ecosystem over a particular time interval.
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Hypoxic Zone
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An overfertilized water area that can support little animal life.
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Basal Area
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Surface area of trees' stumps.
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Relay Floristics
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First species to arrive take over and exclude. Once these species die, new species can come in. This is most common in harsh sites where not many species are able to compete.
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Initial Floristics
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All species arrive at about the same time. Fastest growin species dominate but don't exclude others.
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