| wetland indicator status | <ecology> The exclusiveness with which a plant species occurs in wetland, the different indicator categories (i.e., facultative species, and obligate wetland species) are defined elsewhere in this glossary. (09 Oct 1997) |
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| artificial wetland | <ecology> Wetlands created by the activities of man, either purposefully or accidentally. (09 Oct 1997) |
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| manmade wetland | <ecology> Any wetland area that has been purposely or accidentally created by some activity of humans. (09 Oct 1997) |
| perched wetland | <ecology> Wetlands away from stream or river influence with water made available by general drainage. (09 Oct 1997) |
| riparian wetland | <ecology> Riparian vegetation composed primarily of woody hydrophytes (for example, such as willows, alders, cottonwoods, sycamores, box elders, aspens, etc.). (09 Oct 1997) |
| wetland hydrology | <ecology> In general terms, permanent or periodic inundation or prolonged soil saturation sufficient to create anaerobic conditions in the soil. (09 Oct 1997) |
| moss-lichen wetland | <ecology> A wetland dominated by mosses (mainly peat mosses) and lichens with little taller vegetation. (09 Oct 1997) |
| comprehensive wetland determination | <ecology> A type of wetland determination that is based on the strongest possible evidence, requiring the collection of quantitative data for all three wetland identification criteria. (05 Jan 1998) |
| problem area wetland | <ecology> A wetland that is difficult to identify because it may lack indicators of wetland hydrology and/or hydric soils, or its dominant plant species are more common of nonwetlands. (09 Oct 1997) |
| historic wetland | <ecology> An area of land that is no longer a wetland but which once was, usually refers to areas that were wetlands at the beginning of the Gold Rush (1849). (09 Oct 1997) |
| degraded wetland | <ecology> A wetland which has been altered by man through impairment of some physical property and in which the alteration has resulted in a reduction of biological complexity in terms of species diversity of wetland-associated species which previously existed in the wetland areas. (09 Oct 1997) |
| alizarin indicator | A solution consisting of 1 g sodium alizarin sulfonate dissolved in 100 cc distilled water; used as an indicator for free acidity in gastric contents. (05 Mar 2000) |
| management indicator species | A species whose habitat requirements most reflect those of the species community in the habitat of concern, usually used to indicate habitat quality and to predict future conditions. (09 Oct 1997) |
| redox indicator | A substance that undergoes a definite colour change at a specific oxidation potential. Synonym: redox indicator. (05 Mar 2000) |
| health indicator | Variable, susceptible to direct measurement, that reflects the state of health of persons in a community. (05 Mar 2000) |
| indicator | An event, entity or condition that typically characterises a prescribed environment or situation, indicators determine or aid in determining whether or not certain stated circumstances exist or criteria are satisfied. (09 Oct 1997) |