A short-term event that disrupts populations, communities, or ecosystems by changing the environment.
The displacement of naturally occurring items or debris on the ground.
mso-bidi-font-size:10.5pt; mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'In community ecology, an event that removes organisms and opens up space which can be colonised by individuals of the same or different species
Any relatively discrete event in time that disrupts the ecosystem or plant community and changes the physical environment (e.g., fire, pest infestations, drought, logging).
Processes such as fire, grazing, soil compaction from vehicle tires or animal movement, trampling, bulldozing, and landslides, which physically disrupt and alter a landscape. Prolonged rest from disturbance allows some types of ecosystems to flourish, but damages others. Related terms: brittleness, herd effect, animal impact Related pages: " Brittleness" (articles)
any discrete event in time which disrupts ecosystem structure and resource availability
A natural or human-induced event or process that interrupts ecological succession and creates new conditions on a site (for example, forest fire).
Any range of factors affecting the condition of natural areas. Disturbance may be natural or human-induced. Natural disturbances include wildfires and rainstorms, and are part of natural ecological processes. Human-induced or 'unnatural' disturbance includes timber harvesting, agricultural clearing, mining or grazing. The factors that are important when considering disturbance are the origin, duration, and intensity of the disturbance, and its impact on the environment. Forest Management
Events that can affect watersheds or stream channels, such as floods, fires, or landslides. They may vary in severity from small-scale to catastrophic, and can affect entire watersheds or only local areas.
activity that is an intrusion or interruption; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"
a physical disruption associated with burial processes
An environmental event that sets succession (see) back to an earlier community.
a disruption of the atmosphere that usually refers to a low pressure area, cool air and inclement weather.
Unwanted EM energy, which may or may not affect victim equipment. Disturbances may be produced by either intentional or spurious sources, from equipment, or by natural causes (e.g. lightning, or electrostatic discharge).
An event such as a fire, windstorm or timber harvest that alters succession.
a change in forest cover cause by natural or human causes. Common forest disturbances in New England include clearing for agriculture, abandonment of agricultural fields, windstorms, ice storms, fire, flood, logging, mining, and development.
Short circuit, broken wire, intermittent connection or some other event occurring on a power system.
An unplanned event that produces an abnormal system condition on the EPS, as in the sudden failure of generation or interruption of load.
A rapid change in an environment that greatly alters a previously persistent biological community.
a discrete event, either natural or human-induced, that causes a change in the existing condition of an ecological system. Return to
a natural or human-induced environmental change that alters one or more of the floral, faunal, and microbial communities within an ecosystem. Timber harvesting is the most common human disturbance. Windstorms and fire are examples of natural disturbance.
any relatively discrete event in time that disrupts ecosystem, community, or population structure and changes resources, substrate availability, or the physical environment
Accelerated change caused by human activity or extreme natural events. ( Natural Heritage Charter) A process that alters a physical or biological state resulting in temporary or permanent accelerated competition for resources between individuals and species.
any event that opens up space for colonization, such as the falling of a tree in a forest or removal of marsh grass by storm waves.
An event that changes the local environment by removing organisms or opening up an area, facilitated colonization by new, often different organisms.
A discrete event that disrupts an ecosystem or community. Examples of natural disturbances include fires, hurricanes, tornadoes, droughts, and floods. Examples of human-caused disturbances include deforestation, overgrazing, and plowing.
any event which alters or stresses an environment's structure and function.
An event or short-term process that alters a community or ecosystem by changing the relative population levels of at least some of the component species.
A force that causes significant change in structure and/or composition through natural events such as fire, flood, wind, or earthquake, mortality caused by insect or disease outbreaks, pr by human-caused events, e.g., the harvest of forest products. ( FEMAT, IX-10)
An event or its change in intensity or frequency which alters the structure or functional status of an ecosystem. Examples of disturbances that can affect soil include drought, fire, harvest, tillage, compaction, overgrazing, or addition of pesticides.
natural or human-related damage resulting in the loss of individual plants or whole tracts of forest
Any event or series of events that disrupt ecosystem, community, or population structure and alters the physical environment.
In ecology, a disturbance is a temporary change in average environmental conditions that causes a pronounced change in ecosystem structure that lasts longer than the change in the environment. Disturbances may be natural or anthropogenic: fire, grazing, flood, landslide, drought. Ecosystem changes include altered populations or physiological behaviour of difference species as they respond to the stressful conditions imposed by the disturbance.