Mammalian Survey Techniques for Level II Natural Resource Inventories on Corps of Engineers Projects (Part 1)
CORPS OF ENGINEERS WASHINGTON DC ECOSYSTEM MANAGEMENT AND RESTORATION RESEARCH PROGRAM
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This technical note is a product of the Ecosystem Management and Restoration Research Program EMRRP work unit titled Natural Resource Inventories for Special Status Species on Corps Operating Projects. The objective of this note is to provide information on methods for conducting inventories of mammalian species to satisfy the requirements of Level II Natural Resources Inventories for Corps of Engineers operating projects. General information is provided on survey methodologies for a variety of mammalian species, with emphasis on broadbased methods that can be used to obtain occurrencenon-occurrence data for multiple species within a community Martin et al. 2006. Selected techniques used to survey ungulates hoofed mammals, carnivores, lagomorphs rabbits and hares, squirrels, large aquatic rodents beavers, muskrats, nutria, ground-dwelling rodents, and insectivores shrews and moles are described. Methods to determine presenceabsence andor relative abundance are emphasized. Inventory methods for bats are addressed separately in Part II of Mammalian Survey Techniques Martin et al., in preparation.