trophic class
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Trophic state index — The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a body of water s trophic state index (TSI). Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water … Wikipedia
Non-trophic networks — Any action or influence that species have on each other is considered a biological interaction. These interactions between species can be considered in several ways. One such way is to depict interactions in the form of a network, which… … Wikipedia
Lake Wawasee — Infobox lake lake name = Lake Wawasee image lake = Lake Wawasee 02.png caption lake = image bathymetry = caption bathymetry = location = Kosciusko County, Indiana coords = coord|41|24|N|85|42|W|type:waterbody region:US|display=inline,title type … Wikipedia
Syracuse Lake — Infobox lake lake name = Syracuse Lake image lake = caption lake = image bathymetry = Syracuse Lake.png caption bathymetry = map of 1910 location = Kosciusko County, Indiana, United States coords = type = inflow = outflow = catchment = basin… … Wikipedia
Theoretical ecology — Mathematical models developed in theoretical ecology predict complex food webs are less stable than simple webs.[1]:75–77[2]:64 … Wikipedia
Food web — A freshwater aquatic and terrestrial food web. A food web (or food cycle) depicts feeding connections (what eats what) in an ecological community. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the … Wikipedia
Ecology — For other uses, see Ecology (disambiguation). Ecology … Wikipedia
Population dynamics of fisheries — A fishery is an area with an associated fish or aquatic population which is harvested for its commercial or recreational value. Fisheries can be wild or farmed. Population dynamics describes the ways in which a given population grows and shrinks… … Wikipedia
drug — drug1 /drug/, n., v., drugged, drugging. n. 1. Pharm. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well being. 2. (in federal law) a. any substance… … Universalium
Drug — /droog/, n. Zoroastrianism. the cosmic principle of disorder and falsehood. Cf. Asha. [ < Avestan drauga] * * * I Any chemical agent that affects the function of living things. Some, including antibiotics, stimulants, tranquilizers,… … Universalium
