The Glis glis, also known as the edible dormouse, is a small rodent with a fascinating history and unique behavior. Native to mainland Europe, particularly central and southern regions, these nocturnal creatures are most commonly found in forests and woodlands, where they thrive on a diet of nuts, seeds, fruits, and insects. Despite their endearing appearance, they have become a nuisance in the UK due to their destructive habits, particularly in residential areas.
How Did Glis Glis Arrive in the UK?
The arrival of Glis glis in the UK is as curious as the animal itself. This species is not native to Britain but was introduced in 1902 by the eccentric banker and zoologist Lionel Walter Rothschild, the second Baron Rothschild, who released a small population into the wild at Tring Park in Hertfordshire. Tring Park was part of his extensive estate, which was known for its exotic animals and scientific experiments.
It is believed that Rothschild’s release of Glis glis was initially intended to study their behavior and adapt them to a non-native environment. Unfortunately, the animals thrived in the UK’s mild climate, and their population has grown steadily over the years. Today, the species is largely confined to the Chiltern Hills, with an estimated population of around 10,000.
Physical Characteristics and Behavior
Glis glis are relatively small, measuring 14-19 cm in body length with a bushy tail of similar size. They are often mistaken for squirrels due to their size, agility, and climbing abilities. Their fur is typically gray, with lighter underparts, and they have large, rounded ears and prominent, dark eyes.
These creatures are nocturnal, spending the daytime hidden in nests located in trees, lofts, or wall cavities. During the night, they are highly active, foraging for food and making loud vocalizations, which can be a source of frustration for homeowners. They hibernate for up to seven months of the year, from October to May, making them one of the longest-hibernating mammals in Europe.
Why Are Glis Glis Considered a Pest?
While Glis glis may look harmless, their behavior often brings them into conflict with humans. They are infamous for causing damage to property, especially in areas where they invade homes. Here are the key reasons they are classified as pests:
- Structural Damage: Glis glis are skilled climbers and can access lofts and wall cavities with ease. Once inside, they gnaw on electrical wiring, wooden beams, and insulation, posing fire risks and causing expensive damage.
- Noise Disturbance: Their nocturnal habits mean they are most active at night. Homeowners often report scratching, scurrying, and loud squeaking noises in lofts and walls, disrupting sleep.
- Contamination: Like other rodents, Glis glis leave droppings and urine in the spaces they inhabit, creating hygiene concerns and unpleasant odors.
- Agricultural Impact: In rural areas, they can cause damage to orchards and crops by feeding on fruits, nuts, and seeds.
Legal Protection and Management Challenges
In the UK, Glis glis are listed under the Wildlife and Countryside Act 1981, meaning it is illegal to trap or kill them without a license. This legal protection, combined with their elusive nature, makes controlling their population a significant challenge.
Professional pest control companies must obtain the proper permits to deal with infestations. The methods used typically include:
- Trapping: Humane traps are set in areas of high activity. Once captured, the animals must be handled according to legal requirements.
- Proofing: Pest control specialists seal entry points, such as gaps in walls or roofs, to prevent future access.
- Habitat Modification: Removing food sources, like bird feeders or fallen fruit, can help reduce the appeal of an area to Glis glis.
Coexisting with Glis Glis: Prevention Tips
For homeowners in areas where Glis glis are prevalent, prevention is key to avoiding an infestation. Here are some practical steps to reduce the likelihood of an encounter:
- Seal Entry Points: Inspect your home for gaps or holes in the roof, eaves, or walls, and seal them with durable materials like wire mesh or steel wool.
- Maintain the Garden: Trim overhanging branches and ivy that may provide a pathway to your roof or loft.
- Reduce Attractants: Store food, especially nuts and seeds, in sealed containers, and avoid leaving pet food outdoors.
- Use Professional Services: If you suspect a Glis glis infestation, contact a licensed pest control professional to assess and manage the situation.
Conclusion
The story of Glis glis in the UK is a fascinating example of how human intervention can unintentionally disrupt local ecosystems. While their population remains relatively localized, their impact on properties and communities is significant. Balancing the conservation of this protected species with effective pest management strategies is essential to coexist peacefully with these curious creatures.
If you’re struggling with a Glis glis infestation or suspect these unwelcome visitors are causing damage to your home, don’t wait for the problem to escalate. Contact Assured Pest Control today for expert advice and effective solutions. With years of experience managing Glis glis infestations, we offer a discreet and professional service tailored to your needs. Call me now on 07721 809 273 or reach out through my confidential contact form for prompt assistance. Let us help you regain control of your space and restore your peace of mind.