Biological Distinctiveness For each X: BSP =Regionally Outstanding, WB = Highest Priority at a Regional Scale, G200 = All G200 ecoregions and Hotspots = All ecoregions within Hotspot. WWF = Globally (G) and Regionally (R) Outstanding,
Final Conservation Status
C = Critical,
E = Endangered,
V = Vulnerable,
S = Relatively Stable,
I = Relatively Intact
In ranking added Conservation Status, the precautory approach is used and the higher or the intermediate status is assigned if results from different exercises show different results.
TERRESTRIAL ECOREGIONS RANKING CRITERIA [n] = Upgraded for Urgency at the National Level
- Critical, identified by all representative exercises + hotspots.
- Endangered, identified by two representative exercises + hotspots.
- Endangered or vulnerable, identified by all three representative exercises.
Globally Important or Nationally Urgent
- Critical, identified by two exercises or upgraded for urgency at the National level.
- Endangered, identified by two representative exercises or upgraded for urgency at the National level.
- Vulnerable, identified by two representative exercises.
Regionally or Nationally Important
- Endangered, identified by only one exercise.
- Vulnerable, identified by only one exercise.
- Stable, identified by only one exercise.
- Intact, identified by two or one exercises.
WWF (1999) Terrestrial Ecoregions of North America, were not added to the above mentioned total of priority setting exercises, since they are only available for the US-Mexico border ecoregions.
The authors recognize inherent problems in adding up and comparing results of different priority setting exercises and acknowledge that resulting priorities, could drastically change by using different criteria or additional data.