The rebound timing differs sharply by region.

That timing decides how often conservation land needs costly re-poisoning nationwide.

Killing stoats removes a rat predator and competitor, so survivors breed into more food and less pressure, overshooting past densities.

The study’s authors have not set a single national re-drop schedule.

How each outlet framed it
Phys.org
emphasizes regional variation in rat recovery rates after pesticide drops and need for localized timing based on species protection targets

Sources: Phys.org