Short answers, pulled from the story.
Windsor Forest and Great Park is the second most diverse site in England for invertebrate life, trailing only the New Forest. It holds the highest possible designation as a Grade I Nature Conservation Review site and serves as a biological Site of Special Scientific Interest. The forest is home to an internationally important population of the violet click beetle and diverse fungi species found nowhere else on such a scale.
William the Conqueror established the area for royal hunting following the Norman conquest. The landscape was later shaped by successive monarchs who commissioned landscaped woodland gardens that are now Grade I listed on the Register of Historic Parks and Gardens of Special Historic Interest. The deer that roam the grounds are the living descendants of those first introduced by the early kings.
Windsor Forest and Great Park is located south of Windsor in the counties of Berkshire and Surrey. It serves as a Special Area of Conservation and a green lung for the surrounding urban areas. The land covers vast areas of these two counties and remains protected from the encroachment of development.
The violet click beetle is so rare that its presence here signals a level of ecological health rarely found in the modern world. This species requires the specific microclimate found only in the oldest parts of the woodland to complete its life cycle. Its survival depends on the specific conditions provided by the ancient trees and the undisturbed soil of the forest floor.
The Great Oak is one of many ancient trees that define the character of Windsor Forest and has been preserved for over a thousand years. This tree has witnessed the rise and fall of empires and the coronations of kings while providing a habitat for countless species of insects, birds, and fungi. The preservation of the Great Oak and other ancient trees is a key part of the site's management.