TY - RPRT TI - Use of remote sensing techniques to determine the effects of grazing on vegetation cover and dune elevation at assateague island national seashore: Impact of horses AU - G. H. De Stoppelaire AU - T.W. Gillespie AU - J. C. Brock AU - G.A. Tobin PY - 2004 DO - 10.1007/s00267-004-0009-x UR - https://pubs.usgs.gov/publication/70026456 ID - 70026456 ER -