Mammalian Survey Techniques for Level II Natural Resource Inventories on Corps of Engineers Projects (Part 1)

摘要

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 occurrence/non-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 presence/absence and/or relative abundance are emphasized. Inventory methods for bats are addressed separately in Part II of Mammalian Survey Techniques (Martin et al., in preparation).