A detailed study of geometrid diversity in 4 red spruce forest plots; 1 an uncut control, 2 a selection cut, 3 a strip cut, and 4 a clear cut.
Available from: Canadian Forest Service - Atlantic Forestry Centre, PO Box 4000, Fredericton, New Brunswick, Canada. E3B 5P7.
Also as a PDF document.
warning for dial-ups: the PDF verison is 7.38MB