Change Detection Using Historical Aerial Photography in Bighorn Sheep Habitat of the Sierra Nevada
Proceedings of Spatial Knowledge and Information – Canada (SKI-Canada) 2011, March 3-6 in Fernie, BC, Canada
Erin Latham, Lacey Greene, Tom Stephenson, Greg McDermid, and Mark Hebblewhite
“The principal goal of this research project was to evaluate the changes in Sierra-Nevada bighorn sheep habitat over the past 75 years using historical aerial photography. We hypothesized that changes in bighorn sheep habitat could be characterized by spatial and terrain-related variables such as low elevations, northern aspects, and north latitudes. Our analysis specifically focused on winter habitat ranges with substantial low elevation forest. The application of geographic information science and remote sensing will be useful for managers of the SNBSRP in restoring lost or vulnerable habitat to further aid the recovery of the subspecies.”
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