In the United Kingdom, ancient woodland is that which has existed continuously since 1600 in England, Wales and Northern Ireland. The practice of planting woodland was uncommon before those dates, so
Ancient woodland on Inchmahome island in Scotland
Blossom of lesser celandine (Ficaria verna)
Penduculate oak trees in Wistman's Wood in Dartmoor, Devon
Close-up of the yellow archangel flowers
An old-growth forest is a forest that has developed over a long period of time without disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organiz
Ancient woodland
…or 'critical natural capital'. The analogous term used in the United States, Canada, and Australia (for woodlands that do contain very old trees) is "old-growth forest". Ancient woodland is formally defined on maps by Natural England and equivalent bodies. Mapping of ancient woodland has been undertaken in different…
Old-growth European beech forest in Biogradska Gora National Park, Montenegro
Cool temperate rainforest in Tasmania, Australia
Antarctic beech old growth in Lamington National Park, Queensland, Australia
The northern spotted owl primarily inhabits old-growth forests in the northern part of its range (Canada to southern Oregon) and landscapes with a mix of old and younger forest types in the southern part of its range (the Klamath region and California).