REMOTE SENSING, GIS, GPS

Cowardin, L.M., T.L. Shaffer, and P.M. Arnold. 1995. Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system. National Biological Service, Biological Science Report 2. http://www.npwrc.usgs.gov/resource/othrdata/duckhab/duckhab.htm (Version 16JUL97)

Fish, E.B., E.L. Atkinson, T.R. Mollhagen, C.H. Shanks, and C.M. Brenton. 1998. Playa Lakes Digital Database for the Texas Portion of the Playa Lakes Joint Venture Region. Texas Tech. University, Lubbock, Texas. http://www.lib.ttu.edu/playa/gis/playa_gis.htm