The NTIS website and supporting ordering systems are undergoing a major upgrade from 8PM on September 25th through approximately October 6. During that time, much of the functionality, including subscription and product ordering, shipping, etc., will not be available. You may call NTIS at 1-800-553-6847 or (703) 605-6000 to place an order but you should expect delayed shipment. Please do NOT include credit card numbers in any email you might send NTIS.
Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as
Accession Number PB2014-100057
Title Bat Inventory of Assateague Island National Seashore.
Publication Date Jan 2010
Media Count 129p
Personal Author J. B. Johnson J. E. Gates
Abstract As significant nocturnal insectivores, bats are an integral part of many ecosystems. Determining bat species composition in an area is a critical first step in managing for this important resource. Little information exists concerning the bat species composition of Maryland's Coastal Plain, which is located on the northern periphery of the geographic ranges of some bat species occurring in the southeastern United States. We conducted mist net surveys for bats at Assateague Island National Seashore, a barrier island on Maryland's coast, in summer 2005, and summer and autumn 2006. In 2005, we captured 133 bats representing 3 species, including 2 big brown bats (Eptesicus fuscus), 129 eastern red bats (Lasiurus borealis), and 2 alleged Seminole bats (Lasiurus seminolus). In 2006, we captured a total of 60 eastern red bats in summer and autumn. We used long-term acoustic monitoring to document 3 additional bat species, including silver-haired bats (Lasionycteris noctivagans), hoary bats (Lasiurus cinereus), and eastern pipistrelles (Pipistrellus subflavus). We documented silver-haired bats during spring and autumn, probably as they were migrating through the area. Eastern red bats, and possibly hoary bats and big brown bats over winter at ASIS. Bat activity was inconsistently predicted by weather conditions depending on season. We used Anabat II bat detectors to monitor bat activity at 5 habitats or cover types during summer 2005 and 2006 and found that activity was higher in forests and at freshwater pools than at bayside marshes, dune/shrub zones, and beach areas. Low species diversity at Assateague Island National Seashore likely is attributable to long distances to hibernacula and low roost diversity, as forests are almost entirely comprised of loblolly pine (Pinus taeda).
Keywords Acoustic monitoring
Assateague Island National Seashore
Biological inventory
Coastal areas
Natural resource management
Species diversity

Source Agency National Park Service
NTIS Subject Category 48B - Natural Resource Management
57H - Ecology
57Z - Zoology
Corporate Author Maryland Univ., Frostburg. Appalachian Environmental Lab.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1401
Contract Number N/A

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader