Table 8. Criteria used to evaluate individual model predictions that were independent of the model process.
Evaluation data required | Evaluation reasoning | Evaluation outcome |
Anecdotal data including the locations where bears were sighted | If the distribution or number of bears people see is increasing this suggests an increasing population | Sightings of sows with cubs suggest the unit is occupied; distributional changes suggest corresponding changes in bear numbers; increased sightings suggest an increasing population |
Locations where bears were killed or conflicted with people | The distribution of conflict or kill locations over time may suggest expanding, static or contracting bear distribution | Conflicts with sows and cubs suggest the unit is occupied; distributional changes suggest corresponding changes in bear numbers; increased conflicts suggest the population is increasing |
Absolute ages of dead bears (from all human caused mortality) | Females older than 7 years are likely residents because they are unlikely to emigrate from their home range | Presence of resident bears suggests the unit is occupied; older median age at mortality of males suggests a lower kill rate |
Age by sex of bears in the hunter kill | Trend in median age suggests a population trend | Decreasing age of males or increasing age of females may signal a declining population |
Hunter success rates | Trend in success suggests a population trend | Higher success rates may indicate an increasing population |
Proportion of females in the hunter kill | Trend in female proportion suggest a population trend | Increasing proportion of females suggests a declining male population |
These criteria can be used to confirm residency, to identify suspect predictions, evaluate a predicted level of harvest, or help decide what level of harvest to allow.