| 释义 |
indicator species
indicator speciesn. A species whose abundance in a given area is believed to indicate certain environmental or ecological conditions or suitable conditions for a group of other species.indicator species A species whose presence, absence, or relative well-being in a given environment is a sign of the overall health of its ecosystem. By monitoring the condition and behavior of an indicator species, scientists can determine how changes in the environment are likely to affect other species that are more difficult to study.indicator species
indicator species[′in·də‚kād·ər ‚spē·shēz] (ecology) A species whose presence is directly related to a particular quality in its environment at a given location. indicator species
indicator species any species that is indicative of particular conditions or habitats. For example, the leech Erpobdella testacea is found only in alkaline or polluted waters, the arrowworm Sagitta setosa is characteristic of continental shelf water, whereas S. elegans is characteristic of oceanic water.FinancialSeeIndicatorThesaurusSeeindicator |