Contribution - Expected contribution of the source,
acting alone, to the full expression of a stress (as determined in the stress assessment)
under current circumstances (i.e., given the continuation of the existing management/conservation
situation). |
| Very High |
The source is a very large contributor of the particular stress |
| High |
The source is a large contributor of the particular stress |
| Medium |
The source is a moderate contributor of the particular stress |
| Low |
The source is a low contributor of the particular stress |
|
Irreversibility - Reversibility of the stress caused by the source of stress |
| Very High |
The source produces a stress that is not reversible, for all intents and purposes
(e.g., wetland converted to a shopping centre)
|
| High |
The source produces a stress that is reversible, but not practically affordable
(e.g., wetland conversion to agriculture) |
| Medium |
The source produces a stress that is reversible with a reasonable commitment of
additional resources (e.g., ditching and draining a wetland) |
| Low |
The source produces a stress that is easily reversible at a relatively low cost
(e.g., off-road vehicles driving in wetland) |