Table 9. Severity ratings for predictions of change in abundance of biophysical features and a possible conversion to percentages (after King et al. 2003).
| | | |
|
Severity rating
|
Severity of change
|
Equivalent loss
(% decrease in abundance)
|
Equivalent gain
(% increase in abundance)
|
| |
|
0
|
None
|
No change
|
No change
|
|
1
|
Negligible
|
0–20% loss
|
1–25% gain
|
|
2
|
Low
|
21–40% loss
|
26–67% gain
|
|
3
|
Moderate
|
41–60% loss
|
68–250% gain
|
|
4
|
Severe
|
61–80% loss
|
251–500% gain
|
|
5
|
Critically severe
|
81–100% loss
|
501% gain to ∞;
up to pest proportions
|
| | |
|