Big Brown Bats

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MINNESOTA PROFILE ig Brown Bat (Eptdicusfuscus) Description The big brown bat's scientific name, Eptesicus/uscus,® is Latin for dark house-flier. It is the more common of the two^^^WSj bat species sometimes found in houses and barns. An adult is about 5 inches from nose to tail and has a wingspan of about 10 inches. It has glossy copper or chocolate-brown fur and black membranes on its face, ears, wings, and tail. Long, slender finger bones are encased in leathery skin to make up its wings. This bat belongs to an order of mammals called Chiroptera, from the Creek for hand-wing. Range and habitat Big browns range throughout temperate North America into South America and many Caribbean islands. At home in city and country, they are among Minnesota's hardiest bats. Diet and echolocation They feed at night on flying insects, especially beetles. Nursing females ingest their body weight in insects each night. Bats locate prey by emitting high-frequency sound and listening for echoes bouncing off objects in front of them. The big brown's call is beyond human hearing. Reproduction Big browns mate in fall. In spring females form maternity colonies in attics, barns, and hollow trees. They give birth to one or two pups in early summer. Within a month, pups can fly and forage with their mothers. Hibernation They hibernate in caves, sewers, mines, and buildings. They are the last of Minnesota's cave bats to enter hibernation—usually forced in by a November storm—and among the first to leave in spring. Hibernating bats do not eat and must survive on fat reserves. They can lose more than 25 percent of their body weight over winter. Place in the ecosystem Bats eat insects, including agricultural pests. During summer a colony of 150 bats can consume 38,000 cucumber beetles, 16,000 June bugs, 19,000 stink bugs, and 50,000 leafhoppers. People can minimize conflict with big browns by closing up holes to keep them out of buildings and putting up bat houses. To learn more, contact the DNR Information Center, see page 79. Where to look Watch the twilight sky for a bat the size of a sparrow fluttering above the forest canopy, cruising down a tree-lined road, or swooping under streetlights. Gerda Nordquist, mammalogist and animal survey coordinator DNR Minnesota County Biological Survey MINNESOTA CONSERVATION VOLUNTEER .

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33245 02 Inside Front Cover
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by KnowledgeBank at OSU 186 BATS OF RAVENNA VOL. 106 Bats of Ravenna Training and Logistics Site, Portage and Trumbull Counties, Ohio1 VIRGIL BRACK, JR.2 AND JASON A. DUFFEY, Center for North American Bat Research and Conservation, Department of Ecology and Organismal Biology, Indiana State University, Terre Haute, IN 47089; Environmental Solutions & Innovations, Inc., 781 Neeb Road, Cincinnati, OH 45233 ABSTRACT. Six species of bats (n = 272) were caught at Ravenna Training and Logistics Site during summer 2004: 122 big brown bats (Eptesicus fuscus), 100 little brown myotis (Myotis lucifugus), 26 red bats (Lasiurus borealis), 19 northern myotis (Myotis septentrionalis), three hoary bats (Lasiurus cinereus), and two eastern pipistrelles (Pipistrellus subflavus). Catch was 9.7 bats/net site (SD = 10.2) and 2.4 bats/net night (SD = 2.6). No bats were captured at two net sites and only one bat was caught at one site; the largest captures were 33, 36, and 37 individuals. Five of six species were caught at two sites, 2.7 (SD = 1.4) species were caught per net site, and MacArthur’s diversity index was 2.88. Evidence of reproduction was obtained for all species. Chi-square tests indicated no difference in catch of males and reproductive females in any species or all species combined. Evidence was found of two maternity colonies each of big brown bats and little brown myotis. Capture of big brown bats (X2 = 53.738; P <0.001), little brown myotis (X2 = 21.900; P <0.001), and all species combined (X2 = 49.066; P <0.001) was greatest 1 – 2 hours after sunset.
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Bat Distribution in the Forested Region of Northwestern California
BAT DISTRIBUTION IN THE FORESTED REGION OF NORTHWESTERN CALIFORNIA Prepared by: Prepared for: Elizabeth D. Pierson, Ph.D. California Department of Fish and Game William E. Rainey, Ph.D. Wildlife Management Division 2556 Hilgard Avenue Non Game Bird and Mammal Section Berkeley, CA 9470 1416 Ninth Street (510) 845-5313 Sacramento, CA 95814 (510) 548-8528 FAX [email protected] Contract #FG-5123-WM November 2007 Pierson and Rainey – Forest Bats of Northwestern California 2 Pierson and Rainey – Forest Bats of Northwestern California 1 EXECUTIVE SUMMARY Bat surveys were conducted in 1997 in the forested regions of northwestern California. Based on museum and literature records, seventeen species were known to occur in this region. All seventeen were identified during this study: fourteen by capture and release, and three by acoustic detection only (Euderma maculatum, Eumops perotis, and Lasiurus blossevillii). Mist-netting was conducted at nineteen sites in a six county area. There were marked differences among sites both in the number of individuals captured per unit effort and the number of species encountered. The five most frequently encountered species in net captures were: Myotis yumanensis, Lasionycteris noctivagans, Myotis lucifugus, Eptesicus fuscus, and Myotis californicus; the five least common were Pipistrellus hesperus, Myotis volans, Lasiurus cinereus, Myotis ciliolabrum, and Tadarida brasiliensis. Twelve species were confirmed as having reproductive populations in the study area. Sampling sites were assigned to a habitat class: young growth (YG), multi-age stand (MA), old growth (OG), and rock dominated (RK). There was a significant response to habitat class for the number of bats captured, and a trend towards differences for number of species detected.
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Nine Species of Bats, Each Relying on Specific Summer and Winter Habitats
Species Guide to Vermont Bats • Vermont has nine species of bats, each relying on specific summer and winter habitats. • Six species hibernate in caves and mines during the winter (cave bats). • During the summer, two species primarily roost in structures (house bats), • And four roost in trees and rocky outcrops (forest bats). • Three species migrate south to warmer climates for the winter and roost in trees during the summer (migratory bats). • This guide is designed to help familiarize you with the physical characteristics of each species. • Bats should only be handled by trained professionals with gloves. • For more information, contact a bat biologist at the Vermont Fish and Wildlife Department or go to www.vtfishandwildlife.com Vermont’s Nine Species of Bats Cave Bats Migratory Tree Bats Eastern small-footed bat Silver-haired bat State Threatened Big brown bat Northern long-eared bat Indiana bat Federally Threatened State Endangered J Chenger Federally and State J Kiser Endangered J Kiser Hoary bat Little brown bat Tri-colored bat Eastern red bat State State Endangered Endangered Bat Anatomy Dr. J. Scott Altenbach http://jhupressblog.com House Bats Big brown bat Little brown bat These are the two bat species that are most commonly found in Vermont buildings. The little brown bat is state endangered, so care must be used to safely exclude unwanted bats from buildings. Follow the best management practices found at www.vtfishandwildlife.com/wildlife_bats.cfm House Bats Big brown bat, Eptesicus fuscus Big thick muzzle Weight 13-25 g Total Length (with Tail) 106 – 127 mm Long silky Wingspan 32 – 35 cm fur Forearm 45 – 48 mm Description • Long, glossy brown fur • Belly paler than back • Black wings • Big thick muzzle • Keeled calcar Similar Species Little brown bat is much Commonly found in houses smaller & lacks keeled calcar.
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Corynorhinus Townsendii): a Technical Conservation Assessment
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Bat Rabies and Other Lyssavirus Infections
Prepared by the USGS National Wildlife Health Center Bat Rabies and Other Lyssavirus Infections Circular 1329 U.S. Department of the Interior U.S. Geological Survey Front cover photo (D.G. Constantine) A Townsend’s big-eared bat. Bat Rabies and Other Lyssavirus Infections By Denny G. Constantine Edited by David S. Blehert Circular 1329 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Suzette M. Kimball, Acting Director U.S. Geological Survey, Reston, Virginia: 2009 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1–888–ASK–USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: Constantine, D.G., 2009, Bat rabies and other lyssavirus infections: Reston, Va., U.S. Geological Survey Circular 1329, 68 p. Library of Congress Cataloging-in-Publication Data Constantine, Denny G., 1925– Bat rabies and other lyssavirus infections / by Denny G. Constantine. p. cm. - - (Geological circular ; 1329) ISBN 978–1–4113–2259–2 1.
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Bats of the Savannah River Site and Vicinity
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Chiropterology Division BC Arizona Trial Event 1 1. DESCRIPTION: Participants Will Be Assessed on Their Knowledge of Bats, With
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Maryland's Bats Calvert County Big Brown
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Conservation Assessments for Five Forest Bat Species in the Eastern United States
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Population Dynamics of the Big Brown Bat (Eptesicus Fuscus) in Southwestern Ohio
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Status Report and Assessment of Big Brown Bat, Little Brown Myotis
SPECIES STATUS REPORT Big Brown Bat, Little Brown Myotis, Northern Myotis, Long-eared Myotis, and Long-legged Myotis (Eptesicus fuscus, Myotis lucifugus, Myotis septentrionalis, Myotis evotis, and Myotis volans) Dlé ne ( ) Daatsadh natandi ( wic y wic i ) Daat i i (T i wic i ) T ( wy ) ( c ) Sérotine brune, vespertilion brun, vespertilion nordique, vespertilion à longues oreilles, vespertilion à longues pattes (French) April 2017 DATA DEFICIENT – Big brown bat SPECIAL CONCERN – Little brown myotis SPECIAL CONCERN – Northern myotis DATA DEFICIENT – Long-eared myotis DATA DEFICIENT – Long-legged myotis Status of Big Brown Bat, Little Brown Myotis, Northern Myotis, Long-eared Myotis, and Long-legged Myotis in the NWT Species at Risk Committee status reports are working documents used in assigning the status of species suspected of being at risk in the Northwest Territories (NWT). Suggested citation: Species at Risk Committee. 2017. Species Status Report for Big Brown Bat, Little Brown Myotis, Northern Myotis, Long-eared Myotis, and Long-legged Myotis (Eptesicus fuscus, Myotis lucifugus, Myotis septentrionalis, Myotis evotis, and Myotis volans) in the Northwest Territories. Species at Risk Committee, Yellowknife, NT. © Government of the Northwest Territories on behalf of the Species at Risk Committee ISBN: 978-0-7708-0248-6 Production note: The drafts of this report were prepared by Jesika Reimer and Tracey Gotthardt under contract with the Government of the Northwest Territories, and edited by Claire Singer. For additional copies contact: Species at Risk Secretariat c/o SC6, Department of Environment and Natural Resources P.O. Box 1320 Yellowknife, NT X1A 2L9 Tel.: (855) 783-4301 (toll free) Fax.: (867) 873-0293 E-mail: [email protected] www.nwtspeciesatrisk.ca ABOUT THE SPECIES AT RISK COMMITTEE The Species at Risk Committee was established under the Species at Risk (NWT) Act.
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