Bats of assateague Island National Seashore, Maryland

Joshua Begg Johnson, J. Edward Gates

Research output: Contribution to journalArticle

8 Citations (Scopus)

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 five 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 three species, including two big brown bats (Eptesicus fuscus), 129 eastern red bats (Lasiurus borealis) and two purported Seminole bats (L. seminolus). In 2006 we captured 60 eastern red bats in summer and autumn combined. We used Anabat II bat detectors to conduct long-term acoustic monitoring on the island year round and documented three additional bat species, including silver-haired bats (Lasionycteris noctivagans), hoary bats (L. cinereus) and eastern pipistrelles (Pipistrellus subflavus). We documented silver-haired bats during spring and autumn, probably as they were migrating through the area. We used Anabat II bat detectors to conduct short-term monitoring of bat activity at five habitat types during summer 2005 and 2006 and found that total bat activity and eastern red bat activity were similar among forested areas, freshwater pools and bayside marshes. In shrublands, total bat activity and eastern red bat activity was higher than at beach areas, lower than in forested areas and similar at freshwater pools and bayside marshes. The loblolly pine (Pinus taeda) - dominated forests at ASIS provide roosting and foraging habitat mostly for eastern red bats, but also for other migratory bat species.

Original languageEnglish (US)
Pages (from-to)160-170
Number of pages11
JournalAmerican Midland Naturalist
Volume160
Issue number1
DOIs
StatePublished - Jul 1 2008

Fingerprint

bat
Chiroptera
Lasiurus borealis
seashore
summer
autumn
Pinus taeda
silver
detectors
marshes
Lasiurus cinereus
species diversity
marsh
insectivores
monitoring
coastal plains
habitats
Southeastern United States
shrublands
insectivore

All Science Journal Classification (ASJC) codes

  • Ecology

Cite this

Johnson, Joshua Begg ; Gates, J. Edward. / Bats of assateague Island National Seashore, Maryland. In: American Midland Naturalist. 2008 ; Vol. 160, No. 1. pp. 160-170.
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Bats of assateague Island National Seashore, Maryland. / Johnson, Joshua Begg; Gates, J. Edward.

In: American Midland Naturalist, Vol. 160, No. 1, 01.07.2008, p. 160-170.

Research output: Contribution to journalArticle

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