Island ecosystem restored after century-long battle against feral pigs

Santa Cruz Island's native wildlife has staged a remarkable recovery following the eradication of feral pigs that had ravaged the ecosystem for over a century. The pigs, originally brought to the island in the 1850s, had become feral and caused widespread environmental damage, threatening the survival of endemic species including the island fox population.

Once the feral pig population was brought under control, the island's fox numbers began to recover. However, a new threat emerged as golden eagles, which had expanded their range following the decline of native bald eagle populations, began preying on the foxes. Conservationists responded by capturing golden eagles and systematically reintroducing native bald eagles to the island, restoring the natural predator-prey balance that had existed for centuries.

To ensure the fox population's survival during this transitional period, wildlife managers established a captive breeding initiative. The programme kept vulnerable foxes protected from predation while the broader ecosystem rebalanced itself. This combination of invasive species removal, predator reintroduction, and selective breeding has proven highly effective in reversing decades of ecological decline.

Today, Santa Cruz Island stands as a model for ecosystem restoration in island environments, demonstrating how coordinated conservation efforts can successfully rehabilitate damaged habitats and revive native wildlife populations.