... results include risk of extinction, risk of decline, time to extinction, time to decline, expected abundance, and expected variation in abundance The model has several parameters (e.g., carrying ... Gilpin and Hanski (1991), Breininger et al (in press), and Akçakaya and Sjögren-Gulve (2000) We review two occupancy-type models and four software platforms for spatially structured modeling ... results include risk of extinction, risk of decline, time to extinction, time to decline, metapopulation occupancy, local occupancy duration, expected abundance, and expected variation in abundance...