 | Aeronautics - 1989 - 686 pages
...processes at broad spatial scales. Disturbance can be defined as any relatively discrete event in time that disrupts ecosystem community, or population structure...substrate availability, or the physical environment. The spread of disturbance across a landscape is an important example of a functional characteristic... | |
 | Steward T.A. Pickett, Steward T. Pickett, P. S. White - Nature - 1985 - 492 pages
...context, we propose the following statement: A disturbance is any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability, or the physical environment. This is a purposely generalized definition, and matters of scale and process will have to be specified... | |
 | K.S. Bawa, M. Hadley - Science - 1991 - 452 pages
...(1985) proposed an alternative definition: "a disturbance is any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability, or the physical environment." This definition incorporates two of Bazzaz's key poi its, a relative sudden change in resource availability... | |
 | John A. Wiens - Nature - 1989 - 340 pages
...of disturbances (Fig. 3.1). Broadly viewed, a disturbance is 'any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability, or the physical environment' (White and Pickett 1985: 7). Disturbances are responsible for a change in the state of a system, and... | |
 | G.P. Buckley - Nature - 1992 - 358 pages
...White and Pickett (1985) will be adopted here: A disturbance is any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability, or the physical environment. This definition clearly covers a great range of phenomena that are encountered in temperate woodlands... | |
 | George F. Peterken - Nature - 1996 - 542 pages
...more formally. Disturbance has been defined in physical terms as 'a relatively discrete event in time that disrupts ecosystem, community or population structure...substrate availability, or the physical environment' (Pickett and White, 1985; White, 1987). This definition recognises disturbances at a full range of... | |
 | Fred B. Samson, Fritz L. Knopf - Nature - 1996 - 482 pages
...damaging biomass, to White and Pickett's (1985) definition of "any relatively discrete event in time that disrupts ecosystem, community or population structure...substrate availability, or the physical environment." Petraitis et aL (1989) expand the definition further to include any "process that alters the birth... | |
 | John A. Bissonette - Nature - 1997 - 428 pages
...Disturbance and the Disturbance Regime 5.2.7 Definitions Disturbance is any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability, or the physical environment (White and Pickett 1985). We emphasize that disturbance produces abrupt and measurable changes and... | |
 | C. Lévêque - Nature - 1997 - 474 pages
...'extent' scales. Perturbation or disturbance may be defined as 'any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability, or the physical environment' (White & Pickett, 1985), or 'any relatively discrete event in time that removes organisms and opens... | |
 | Bruno Streit, Thomas Stadler, Curtis M. Lively - Nature - 1997 - 390 pages
...accepted, is that of White and Pickett (1985), "a disturbance is any relatively discrete event in time that disrupts ecosystem, community, or population...substrate availability or the physical environment". This definition incorporates environmental fluctuations and destructive events whether or not they... | |
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A disturbance is any relatively discrete event in time that disrupts ecosystem, community, or population structure and changes resources, substrate availability, or the physical environment. 
