Folks,
A bit of info came to light today in some of the discussions on a
management-intensive grazing listserve I subscribe to - about earthworms
damaging the forest ecosystems in the northern & eastern USA.
If you do a Google search(www.google.com) and enter "earthworm forests",
you'll get plenty of hits, but in the meantime, here's one that synopsizes
the info pretty succinctly: