Research overview: dynamic Brownian bridge movement models

Dynamic Brownian bridge movement models extend the basic Brownian bridge by letting the animal's movement variance change along the track, so that fast directed travel and slow localized activity are modeled with different diffusion. This overview explains how the dynamic version better captures behavioral heterogeneity, distinguishing migratory corridors from foraging areas within a single trajectory. The result is a utilization distribution that highlights travel routes and stopover sites, valuable for mapping the corridors dispersing cats actually use. The overview covers the windowed estimation of variance, sensitivity to fix interval, and applications to connectivity and migration. By respecting the temporal structure and shifting tempo of real movement, dynamic Brownian bridges offer more faithful pictures of how felids traverse landscapes than static estimators allow.