The extinction of the red squirrel would significantly affect forest ecosystems where it plays a key role.
Seed Dispersal and Food Webs
Red squirrels cache seeds and nuts, contributing to forest regeneration and biodiversity. Their loss would remove this dispersal mechanism and disrupt predator populations that rely on them as prey.
Competition and Cultural Value
Where red and gray squirrels coexist, red squirrels often outcompete grays for resources. Without red squirrels, gray populations could expand and displace other native species. The loss would also carry cultural and aesthetic consequences, including effects on ecotourism and wildlife observation.