Ash dieback not only affects ash trees but also the birds, mammals, insects and plants whose lives are linked to the tree.
But it is not just specialists that will be affected. Ash is a wildlife all-rounder; it is an important habitat and food source for many species, particularly roosting birds and bats, as well as hole-nesting birds. Great spotted woodpeckers happily plunder ash keys and use the trees as a sap run. And, in ash-dominated habitats, birds such as redstarts use trees for nesting and breeding – they could be seriously affected if ash dieback reaches these habitats.
But it is our bugs and insects that will bear the brunt of any ash tree fallout.
http://www.thisissomerset.co.uk/Ash-wipeout-catastrophe-nature/story-17245197-detail/story.html