Yes, apparently about 1000 species (birds, mammals, invertebrates, fungi) are "associated with" ash trees. Of those, the article says, 100 are 'dependent' on the ash tree and likely to become extinct as well unless they adapt. Same again: that's how life works.
Most of the thousand are presumably associated with other trees too. If they have any sense of survival they will be 
Presumably the ash borer beetle will become extinct too if it kills off its food supply. Daft bugger.
No, I didn't have a bad night and I'm perfectly cheerful; it's all the angst about such stuff that I find tiresome. It happens. It always has and it always will.
Meanwhile, ash, sycamore, and holly trees are weeds where I live (no sign of ash dieback here yet). I pull up dozens every year or we wouldn't be able to get out of the house before long.