Model selection of multi-method occupancy models of grizzly bears in the Rocky Mountains of Kananaskis Country, Alberta, Canada.

Conditional probability of occupancy (θ) was either constant (.) or varied through time (t). Probability of detecting grizzly bears (p) was either constant (.), varied with METHOD, varied with each SURVEY, varied through time as a TREND, or varied INDEPENDENTly for each survey and method.