Research overview: pioneering individuals and range recolonization

Range expansions often begin with a handful of pioneering individuals making improbable journeys into vacant habitat, and this overview examines how movement science documents these events for cats. Whether a lone male puma reaching the eastern United States, a jaguar appearing north of the Mexican border, or a lynx colonizing reintroduction landscapes, single dispersers test the limits of connectivity and signal whether recolonization is possible. The overview discusses why male-biased dispersal means lone wanderers are usually males, while the rarer dispersal of females is the true determinant of whether new breeding populations establish. It also covers how telemetry, genetics, and verified sightings combine to reconstruct these movements. Pioneering individuals are both biological curiosities and crucial indicators of a species' capacity to reclaim lost range.