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Invertebrates and ancient trees

The single most important wood-decay resource for many invertebrates is a large standing living tree with columns of decay in the heartwood.

Around 1700 (6 per cent) of invertebrate species in the British Isles are dependent on decaying wood in order to complete their life cycles, which demonstrates how important ancient trees are.

The invertebrate community of a tree often changes as the decay process proceeds. Some invertebrates are more dependent on the type of decay than on the species of tree. Others are depending on the type of fungi present, or the fungi fruiting bodies.

lady bird