Red Squirrel Stronghold
1990s
Context: The spread of grey squirrels across Britain from the late nineteenth century onwards caused one of the most dramatic wildlife declines in the country's ecological history.
The Isle of Wight is the last significant refuge for the red squirrel in England, a status that has made the island a place of national importance for wildlife conservation and given it an unlikely but much-loved symbol. The red squirrel, once common throughout Britain, has been displaced across almost all of England, Wales, and lowland Scotland by the grey squirrel, an American species introduced in the 1870s. The Solent, acting as a natural barrier, has prevented grey squirrels from colonising the island, and the red squirrel population has survived here while disappearing from the mainland.
The story of the red squirrel's decline on the mainland is well documented. Grey squirrels, larger and more adaptable, outcompete reds for food and habitat. They also carry squirrelpox, a virus that is lethal to red squirrels but to which greys are largely immune. By the late twentieth century, the red squirrel had been effectively eliminated from southern England, surviving only in a few isolated pockets in Northumberland, Cumbria, and the Scottish Highlands. The Isle of Wight, with an estimated population of between 3,000 and 4,000 red squirrels, became the species' most important English stronghold.
Recognition of the island's significance came gradually. Conservation organisations, including the Hampshire and Isle of Wight Wildlife Trust and the Wight Squirrel Project, began monitoring the population and promoting awareness in the 1990s. The red squirrel became an emblem of the island's natural distinctiveness, featuring on tourism materials, local business signage, and community projects. For islanders, the red squirrel is a source of genuine pride, a tangible demonstration that the island's separation from the mainland is not merely a geographical fact but an ecological one with real consequences.
The squirrels are found across the island but are most easily seen in the woodlands of the interior: Parkhurst Forest, Firestone Copse, and Borthwood Copse are particularly reliable locations. They are also frequent visitors to gardens, where they raid bird feeders with an agility and impudence that endears them to residents and visitors alike. Their coat colour varies from bright chestnut to a darker brownish-red, and the distinctive ear tufts, prominent in winter, make them unmistakable.
Protecting the population requires vigilance. The greatest threat remains the potential introduction of grey squirrels, whether by deliberate release, accidental transport on vehicles or freight, or by swimming. Grey squirrels are strong swimmers, but the Solent crossing of two to five miles is considered beyond their range under normal conditions. Nonetheless, the risk is taken seriously, and biosecurity measures have been discussed and implemented. Any grey squirrel sighting on the island is treated as an emergency, with rapid response teams ready to trap and remove the intruder before it can establish a breeding population.
The island's red squirrel population also benefits from active habitat management. Woodland management practices that favour the mixed broadleaf and conifer habitats preferred by red squirrels are promoted, and supplementary feeding stations are maintained in some areas. Research into the population's health, genetics, and ecology continues, providing data that informs conservation strategies both on the island and in the remaining mainland strongholds.
The red squirrel has become one of the Isle of Wight's most potent symbols, representing the island's ecological uniqueness, its separation from the mainland, and the value of that separation. In a country where native species are under constant pressure from habitat loss, climate change, and invasive competitors, the Isle of Wight's squirrels are a rare success story, a reminder that insularity can be a gift as well as a limitation.
Impact
Made the Isle of Wight England's most important red squirrel stronghold, turned the species into an island emblem, and highlighted the ecological significance of the Solent as a natural barrier.