How Environment Synchronizes Distant Animal Populations

Two separate groups of the same animal species will mirror each other's population shifts if their local environments change in sync. Even without any contact, geography dictates their shared destiny.

Moran's theorem reveals a surprising link between climate and wildlife numbers. If two distinct habitats experience identical weather patterns, the populations living there will fluctuate in unison. This mathematical principle explains why animal groups separated by hundreds of miles can rise and fall at the same time. It highlights just how powerful environmental forces are in shaping the rhythm of nature across the globe.