Term
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Definition
| NUTRIENT ENRICHMENT OF AN AQUATIC ECOSYSTEM |
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Term
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Definition
| organism that gets energy and nutrients by feeding on tissues, wastes, or remains of other organisms, a heterotroph. |
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Definition
| organism that feeds on biological remains and breaks organic material down into its inorganic subunits |
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Definition
| consumer that feeds on small bits of organic material |
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Term
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Definition
| a community interesting with its environment |
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Definition
| description of who eats whom in one path of energy flow in an ecosystem |
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Definition
| in an ecosystem, an organism that captures energy from an inorganic source and stores it as biomass: first trophic level |
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Term
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Definition
| position of an organism in a food chain |
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Term
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Definition
| food web in which most energy is transferred directly from producers to detritiovres |
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Term
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Definition
| set of cross-connecting food chains |
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Term
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Definition
| food web in which most energy is transferred from producers to grazers (herbivores) |
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Term
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Definition
| diagram that depicts the biomass (dry weight) in each of an ecosystems trophic levels. |
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Term
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Definition
| diagram that depicts the energy that enters each of an ecosystems trophic levels. lowest tier of the pyramid, representing primary producers, is always the largest |
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Term
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Definition
| the rate at which an ecosystems producers capture and store energy |
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Definition
| porous rock layer that hold some groundwater |
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Term
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Definition
| soil water and water in aquifers |
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Term
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Definition
| water that flows over soil into streams |
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Term
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Definition
| water between soil particles |
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Term
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Definition
| movement of water among earths atmosphere, ocean,and the freshwater reservoir on land. |
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Term
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Definition
| land area that drains into a particular stream or river. |
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Term
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Definition
| a nutrient moves among environmental reservoir and into and out of food webs |
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Term
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Definition
| biogeochemical cycle in which a gaseous form of an element plays a significant role. |
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Term
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Definition
| movement of carbon, mainly between the oceans, atmosphere, and living organisms. |
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Term
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Definition
| a long-term change in earths climate |
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Term
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Definition
| atmospheric gas that absorbs heat emitted by earths surface and remits it, thus keeping the pant warm |
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Term
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Definition
| breakdown of nitrogen-containing organic material resulting in the release of ammonia and ammonium ions |
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Term
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Definition
| conversion of nitrous or nitrous to gaseous forms of nitrogen |
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Term
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Definition
| conversion of ammonium to nitrates |
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Term
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Definition
| movement of nitrogen among the atmosphere, soil, and water, and into and out of food webs. |
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Term
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Definition
| incorporation of nitrogen from nitrogen gas into ammonia |
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Term
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Definition
| movement of phosphorus among earths rocks and water and into and out of food webs |
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Term
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Definition
| biochemical cycle in which the atmosphere plays little role and rocks are the major reservoir |
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