Attached and fallen twigs and small branches of trees are mini-ecosystems in themselves. They support fascinating communities of small plants, animals, fungi and lichens, which contribute in varied and sometimes surprising ways to the life and times of the trees and woodlands they inhabit. Autumn is a good time of year in which to familiarise ourselves with these communities. During this workshop Alan and Rob will show how to find and identify some of the organisms involved. You are also invited to bring some samples of your own to examine.