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disturbance |
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disturbance 1. Law an interference with another's rights 2. Geology a. a minor movement of the earth causing a small earthquake b. a minor mountain-building event 3. Meteorol a small depression 4. Psychiatry a mental or emotional disorder disturbance [də′stər·bəns] (communications) An undesired interference or noise signal affecting radio, television, or facsimile reception. (control systems) An undesired command signal in a control system. (geology) Folding or faulting of rock or a stratum from its original position. (meteorology) Any low or cyclone, but usually one that is relatively small in size and effect. An area where weather, wind, pressure, and so on show signs of the development of cyclonic circulation. Any deviation in flow or pressure that is associated with a disturbed state of the weather, such as cloudiness and precipitation. Any individual circulatory system within the primary circulation of the atmosphere. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The relative effects of anthropogenic disturbance must be distinguished from the ranges of variation in natural disturbance regimes, but because of the large size and variability of coastal ecosystems, manipulative experiments to untangle the complexities of the varying disturbance regimes are difficult except on a relatively small scale. Quality Northwest federal forests are being conserved through preservation, restrictive environmental regulations, sound science and evolving forest management that uses natural disturbance regimes, diverse rotations and, above all, a veneration for all forest values. In the East, the major factor in local disturbance regimes," to use the elegant ecological term, was windthrow. |
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