Indicators

thumb|Caddisfly (order Trichoptera), a [[macroinvertebrate used as an indicator of water quality.]] A bioindicator is any species (an indicator species) or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. For example, copepods and other small water crustaceans that are present in many water bodies can be monitored for changes (biochemical, physiological, or behavioural) that may indicate a problem within their ecosystem. Bioindicators can tell us about the cumulative effects of different

measurement of performance-related attributes that evaluates the success of an organization or of a particular activity, to be compared against benchmarks or expectations

measure, which allows statements about the economic situation in general of national economies

artifact observed on a network or in an operating system that indicates a computer intrusion

measure used to evaluate environmental change

attributes of ecosystems which signify their health

measure of quality of health, or magnitude of public health change caused by actions