Source link : https://europ.info/2025/08/10/the-surprising-reason-guernsey-has-no-native-squirrels/
Guernsey, the lush Channel Island known for its unique wildlife and temperate climate, stands out for one notable absence: native squirrels. Unlike much of the British Isles, where squirrels are common inhabitants of woodlands and parks, Guernsey’s forests remain squirrel-free. This intriguing ecological anomaly has prompted questions from naturalists and residents alike. In this article, we explore the historical, geographical, and environmental factors behind the absence of native squirrels in Guernsey, shedding light on how isolation and human influence have shaped the island’s distinctive animal population.
Origins of Guernsey’s Unique Wildlife Environment
Guernsey’s wildlife has been shaped by its geological history and isolation from the mainland. As the last Ice Age retreated around 10,000 years ago, rising sea levels transformed Guernsey into an island, severing land connections and limiting species migration. Unlike larger landmasses, Guernsey’s relatively small size and separation prevented many terrestrial animals, including squirrels, from naturally establishing populations. This isolation has helped preserve a distinctive fauna, but also created gaps in the ecosystem where certain species simply never arrived.
The island’s environment today supports a mix of native and introduced species, with a tendency towards ground-dwelling mammals and birds adapted to coastal and woodland habitats. Key factors influencing this include:
- Historical land…
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Author : Sophia Davis
Publish date : 2025-08-10 18:57:00
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