Evaluation Process - From Information System to General Status Ranks

Guidelines were developed to convert data and information into seven indicators. These indicators were then scored to produce a status rank for each species. The process by which this was done differed slightly amongst groups of species. For mammals and fishes, a committee reviewed the information, scored the indicators and drafted a status. If the committee considered that insufficient information was available to reliably evaluate the health of a species, a status of "Undetermined" was given to that species. For birds, amphibians, and reptiles, information used in the scoring process was limited to printed material with the help of one or two experts. 

For plants, non-experts evaluated status ranks using printed information only. In this case, further guidelines were used to help non-experts with their evaluation. Again, if the printed material available did not contain enough information to draft a status, a status of "Undetermined" was given to that species. 

The guidelines were followed generally, but were not used as a strict rule. If committees, experts and knowledgeable people were of the opinion that some indicators did not fully reflect a useful aspect of a species' health, the indicator was given less weight in drafting a status. In each case, justifications and comments were provided with the status.

Indicators and Scores - Tools to rank the general status of a species

Guidelines were developed to convert data and information into seven indicators. These indicators were scored to produce a status rank for each species. The seven biological indicators used to evaluate the biological status of a species are given below.

Each indicator was given a score according to the following matrix. The scores were then converted into a general status by following guidelines shown in the scoring matrix. As a guide, the species is assigned the highest general status (from May Be At Risk, Sensitive to Secure) reached using any indicator.

Guidelines for Scoring Indicators and Assigning General Status Ranks