Silver-haired bat

The silver-haired bat (Lasionycteris noctivagans) is a solitary migratory species of vesper bat in the family Vespertilionidae and the only member of the genus Lasionycteris.[2]

Silver-haired bat
Silver-haired bat
Male captured in the Ozark National Scenic Riverways in 2010.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Vespertilionidae
Genus: Lasionycteris
Peters, 1866
L. noctivagans
Binomial name
Lasionycteris noctivagans
(Le Conte, 1831)
Distribution of Lasionycteris noctivagans
Distribution of the silver-haired bat (2009)


The species name translates as night-wandering, referring to the nocturnal behavior of bats.


This medium-sized bat is predominately black (including the wings, ears, interfemoral membrane, and fur) with white-tipped hairs. The basal upper half of its tail membrane is densely furred. This gives the bat a frosted appearance and its common name's sake. This species has a flattened skull with a broad rostrum.[3] This species weighs around 8–12 g, has a total length of ~100 mm, a tail length of 40 mm, and a forearm length of 37–44 mm.[4]

Distribution and habitat

Lasionycteris noctivagans is found in Bermuda, Canada, Mexico, and the United States. This forest inhabitant is known to occur from southeastern Alaska in summer to northeastern Mexico in winter [5] and is found in xeric habitats at low elevations during seasonal migrations. In Missouri, reproduction occurs in the northern dissected plains region, but reproductive females are believed to be absent from the southern Ozark highlands in the summer.

They often roost in tree cavities or in bark crevices on tree trunks, especially during migration. Their unique coloration makes them blend in with their roosting environment.[6] However, some individuals seem to overwinter in buildings, which may allow them to spend the winter in places that would otherwise be too cold for them.[7]

Life history

Copulation of tree bats is likely initiated during flight. After mating, tree bats hibernate alone in tree cavities, bark crevices, beneath leaf litter, or in the twilight zone of caves. Gestation typically takes 50–60 days, so that parturition of pups occurs in early summer when insect availability is high.[8] Pups are born breech by presentation, and the mother consumes the placenta [9] Females typically give birth to two offspring, with an even sex ratio.

Diet and foraging behavior

Silver-haired bats consume primarily soft-bodied insects, such as moths, but will also take spiders and harvestmen. This species will forage low, over both still and running water, and also in forest openings. Silver-haired bats are slow but maneuverable flyers that typically detect prey a short distance away.[10]

Conservation threats

In addition to the hoary bat (Lasiurus cinereus) and eastern red bat (Lasiurus borealis), the silver-haired bat is one of the three tree bat species most commonly killed at wind energy facilities (over 75% of the mortalities).[11]

The causative agent of white-nose syndrome, Pseudogymnoascus destructans, has been detected on a silver-haired bat in Delaware, although this species does not suffer the same mass mortalities observed in smaller-bodied hibernating North American cave bats.[12]

Like all bats, silver-haired bats are vulnerable to population threats because of their inherently low reproductive rate.[13]


Most bats do not have rabies; however, most recent human rabies deaths have been due to a strain of rabies associated with this species.[6]

See also


  1. ^ Solari, S. (2019). "Lasionycteris noctivagans". The IUCN Red List of Threatened Species. 2019: e.T11339A22122128. doi:10.2305/IUCN.UK.2019-1.RLTS.T11339A22122128.en.
  2. ^ Simmons, N.B. (2005). "Order Chiroptera". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 499. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. ^ Kunz, T. 1982. Lasionycteris noctivagans. American Society of Mammalogists. No 172 pp. 1-5.
  4. ^ "Silver-haired Bat". The Mammals of Texas – Online Edition.
  5. ^ Cryan, P.M. 2003. Seasonal distribution of migratory tree bats (Lasiurus and Lasionycteris) in North America. Journal of Mammalogy 84(2): 579-593.
  6. ^ a b Coming in Contact with Bats. Centers for Disease Control and Prevention National Center for Emerging and Zoonotic Infectious Diseases (NCEZID) Division of High-Consequence Pathogens and Pathology (DHCPP).
  7. ^ Kurta, Allen; Auteri, Giorgia G.; Hofmann, Joyce E.; Mengelkoch, Jean M.; White, J. Paul; Whitaker, John O.; Cooley, Thomas; Melotti, Julie (2018-04-17). "Influence of a Large Lake on the Winter Range of a Small Mammal: Lake Michigan and the Silver-Haired Bat (Lasionycteris noctivagans)". Diversity. 10 (2): 24. doi:10.3390/d10020024.
  8. ^ Hayssen, V., A. van Tienhoven, and A. van Tienhoven. 1993. Asdell’s patterns of mammalian reproduction. Comstock Publ. Assoc., Ithaca, NY.
  9. ^ Kurta, A.D, and T.H. Kunz. 1987. Size of bats at birth and maternal investment during pregnancy. Symp. Zool. Soc. Lond. 57:79–106.
  10. ^ Barclay, R.M.R. 1985. Long-versus short-range foraging strategies of hoary (Lasiurus cinereus) and silver-haired (Lasionycteris noctivagans) bats and the consequences for prey selection. Canadian Journal of Zoology. 63(11):2507–2515.
  11. ^ Arnett, E. B. 2008. Patterns of fatality of bats at wind energy facilities in North America. Journal of Wildlife Management. 72:61–78.
  12. ^ "Archived copy". Archived from the original on 2014-03-10. Retrieved 2014-03-03.CS1 maint: Archived copy as title (link)
  13. ^ Barclay, R.M.R., J. Ulmer, C.J.A. MacKenzee, M.S. Thompson, L. Olson, J. McCool, E.E. Cropey, and G. Poll. 2004. Variation in the reproductive rate of bats. Canadian Journal of Zoology. 82, 688–693.

Arielulus is a genus of vesper bats with the following species, sometimes in Pipistrellus:

Genus Arielulus

Collared pipistrelle (A. aureocollaris)

Black-gilded pipistrelle (A. circumdatus)

Coppery pipistrelle (A. cuprosus)

Social pipistrelle (A. societatis)

Necklace pipistrelle (A. torquatus)


Barbastella is a small genus of vespertilionid bats. There are five described species in this genus.

Bats of Canada

There are eighteen indigenous species of bats in Canada, which are found in many parts of the country. They are insectivores, and are prey to falcons, hawks, owls, snakes, cats, and raccoons.

Cypress Hills Interprovincial Park

Cypress Hills Interprovincial Park is a natural park in Canada straddling the Alberta-Saskatchewan boundary and jointly administered by the two provinces. Located southeast of Medicine Hat, it became Canada's first interprovincial park in 1989.

The park consists of two protected areas, the 345 km2 (133 sq mi) west block, that straddles the Alberta/Saskatchewan boundary between Alberta Highway 41, the townsite of Elkwater, Saskatchewan Highway 615, Saskatchewan Highway 271 and Fort Walsh, and the centre block, an additional area of 58 km2 (22 sq mi) in Saskatchewan, west of Saskatchewan Highway 21.


Eptesicus is a genus of bats, commonly called house bats or serotine bats, in the family Vespertilionidae.The 25 species within this genus are:

Little black serotine (Eptesicus andinus)

Bobrinski's serotine (Eptesicus bobrinskoi)

Botta's serotine (Eptesicus bottae)

Brazilian brown bat (Eptesicus brasiliensis)

Chiriquinan serotine (Eptesicus chiriquinus)

Diminutive serotine (Eptesicus diminutus)

Surat serotine (Eptesicus dimissus)

Horn-skinned bat (Eptesicus floweri)

Argentine brown bat (Eptesicus furinalis)

Big brown bat (Eptesicus fuscus)

Gobi big brown bat (Eptesicus gobiensis)

Guadeloupe big brown bat (Eptesicus guadeloupensis)

Long-tailed house bat (Eptesicus hottentotus)

Harmless serotine (Eptesicus innoxius)

Meridional serotine (Eptesicus isabellinus)

Japanese short-tailed bat (Eptesicus japonensis)

Kobayashi's bat (Eptesicus kobayashii)

Eptesicus lobatus

Jamaican serotine (Eptesicus lynni)

Sind bat (Eptesicus nasutus)

Northern bat (Eptesicus nilssonii)

Thick-eared bat (Eptesicus pachyotis)

Lagos serotine (Eptesicus platyops)

Serotine bat (Eptesicus serotinus)

Eptesicus taddeii

Sombre bat (Eptesicus tatei)

Fauna of Maine

The fauna of Maine include several diverse land and aquatic animal species, especially those common to the North Atlantic Ocean and deciduous forests of North America. Some of these creatures' habitats has been reduced or fully removed.


Laephotis is a genus of bats in the family Vespertilionidae. Species within this genus are:

Angolan long-eared bat (Laephotis angolensis)

Botswanan long-eared bat (Laephotis botswanae)

Namib long-eared bat (Laephotis namibensis)

De Winton's long-eared bat (Laephotis wintoni)

List of mammals of Missouri

This is a list of known mammals in the US state of Missouri.

List of mammals of South Carolina

This is a list of mammals that are or were in the past native to the US state of South Carolina.

BalaenopteridaeBowhead whale (Balaena mysticetus)

Fin whale (Balaenoptera physalus)

Humpback whale (Megaptera novaengliae)

Minke whale (Balaenoptera acutorostrata)

Right whale (Eubalaena glacialis)

Sei whale (Balaenoptera borealis)BovidaeBison (Bison bison)CanidaeCoyote (Canis latrans)


Gray fox (Urocyon cinereoargenteus)

Red fox (Vulpes vulpes)


Gray wolf (Canis lupus)

Red wolf (Canis rufus)CervidaeElk (Cervus elaphus)

White-tailed deer (Odocoileus virginianus)DasypodidaeNine-banded armadillo (Dasypus novemcinctus)DelphinidaeAntillean beaked whale (Mesoplodon europaeus)

Atlantic pilot whale (Globicephala melaena)

Atlantic spotted dolphin (Stenella frontails)

Common bottlenose dolphin (Tursiops truncatus)

Dense-beaked whale (Mesoplodon densirostris)

False killer whale (Pseudorca crassidens)

Grampus (Grampus griseus)

Pantropical spotted dolphin (Stenella attenuata)

Rough-toothed dolphin (Steno bredanenis)

Saddleback dolphin (Delphinus delphis)

Short-finned pilot whale (Globicephala macrohyncha)

Spinner dolphin (Stenella longirostris)

Striped dolphin (Stenella coeruleoalba)

True's beaked whale (Mesoplodon mirus)DidelphimorphiaVirginia opossum (Didelphis virginiana)EquidaeHorse (Equus caballus)EschrichtiidaeGray whale (Eschrichtius robustus)FelidaeBobcat (Lynx rufus)

Mountain lion (Puma concolor)LeporidaeEastern cottontail (Sylvilagus floridanus)

Marsh rabbit (Sylvilagus palustris)

New England cottontail (Sylvilagus transitionalis)

Swamp rabbit (Sylvilagus aquaticus)MephitidaeSpotted skunk (Spilogal putorius)

Striped skunk (Mephitis mephitis)MolossidaeBrazilian free-tailed bat (Tadarida brasiliensis)MuridaeBlack rat (Rattus rattus)

Cotton mouse (Peromyscus gossypinus)

Deer mouse (Peromyscuc maniculatus)

Eastern harvest mouse (Reithrodontomys humulis)

Eastern woodrat (Neotoma Floridana)

Golden mouse (Ochrotomys nuttalli)

Hispid cotton rat (Sigmodon hispidus)

House mouse (Mus musculus)

Meadow vole (Microtus pennsylvanicus)

Muskrat (Ondatra zibethiscus)

Norway rat (Rattus norvegicus)

Oldfield mouse (Peromyscus polionotus)

Pine vole (Microtus pinetorum)

Red-backed vole (Clethrionomys gapperi)

Rice rat (Oryzomys palustris)

White-footed mouse (Peromyscus leucopus)MustelidaeLeast weasel (Mustela nivalis)

Long-tailed weasel (Mustela frenata)

Mink (Mustela vison)

North American river otter (Lutra canadensis)PhocidaeHarbor seal (Phoca vitulina)

Hooded seal (Cystophora cristata)PhocoenidaeHarbor porpoise (Phocoena phocoena)PhyseteridaeDwarf sperm whale (Kogia simus)

Pygmy sperm whale (Kogia breviceps)

Sperm whale (Physeter catodon)ProcyonidaeRaccoon (Procyon lotor)SciuridaeEastern chipmunk (Tamias striatus)

Gray squirrel (Sciurus carolinensis)

Least shrew (Cryptotis parva)

Masked shrew (Sorex cinereus)

Southern short-tailed shrew (Blarina carolinensis)SoricidaeAmerican pygmy shrew (Microsorex hoyi)

Red squirrel (Tamiasciurus hudsonicus)

Short-tailed shrew (Blarina brevicauda)

Smoky shrew (Sorex fumeus)

Southeastern shrew (Sorex longirostris)

Southern flying squirrel (Glaucomys volans)

Woodchuck (Marmota monax)SuidaeWild boar (Sus scrofa)TalpidaeEastern mole (Scalopus aquaticus)

Hairy-tailed mole (Parascalops breweri)

Star-nosed mole (Condylura cristata)TrichechidaeManatee (Trichechus manatus)UrsidaeBlack bear (Ursus americanus)VespertilionidaeBig brown bat (Eptesicus fuscus)

Eastern pipistrelle (Pipistrellus subflavus)

Eastern red bat (Lasiurus borealis)

Eastern small-footed bat (Myotis leibii)

Evening bat (Nycticeius humeralis)

Hoary bat (Lasiurus cinereus)

Indiana bat (Myotis sodalis)

Little brown bat (Myotis lucifugus)

Northern long-eared bat (Myotis septentrionalis)

Northern yellow bat (Lasiurus intermedius)

Rafinesque's big-eared bat (Plecotus rafinesqueii)

Seminole bat (Lasiurus seminolus)

Silver-haired bat (Lasionycteris noctivagans)

Southeastern myotis (Myotis austroriparius)ZapodidaeMeadow jumping mouse (Zapus hudsonius)

Woodland jumping mouse (Napaeozapus insignis)ZiphiidaeGoosebeaked whale (Ziphius carvirostris)

List of mammals of Yellowstone National Park

There are at least 67 species of mammals known to live within Yellowstone National Park, a 2,219,791 acres (898,318 ha) protected area in the Rocky Mountains of Wyoming, Montana, and Idaho.

Species are listed by common name, scientific name, typical habitat, and relative abundance.

Moloney's mimic bat

Moloney's mimic bat (Mimetillus moloneyi) is a species of vesper bat. It can be found in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Ethiopia, Gabon, Ghana, Guinea, Kenya, Liberia, Mozambique, Nigeria, Sierra Leone, South Sudan, Tanzania, Togo, Uganda, and Zambia. It is found in subtropical or tropical dry or moist forests, subtropical or tropical mangrove forests, subtropical or tropical moist montane forests, dry and moist savanna.

Myelin basic protein

Myelin basic protein (MBP) is a protein believed to be important in the process of myelination of nerves in the nervous system. The myelin sheath is a multi-layered membrane, unique to the nervous system, that functions as an insulator to greatly increase the velocity of axonal impulse conduction. MBP maintains the correct structure of myelin, interacting with the lipids in the myelin membrane.MBP was initially sequenced in 1971 after isolation from bovine myelin membranes. MBP knockout mice called shiverer mice were subsequently developed and characterized in the early 1980s. Shiverer mice exhibit decreased amounts of CNS myelination and a progressive disorder characterized by tremors, seizures, and early death. The human gene for MBP is on chromosome 18; the protein localizes to the CNS and to various cells of the hematopoietic lineage.

The pool of MBP in the central nervous system is very diverse, with several splice variants being expressed and a large number of post-translational modifications on the protein, which include phosphorylation, methylation, deamidation, and citrullination. These forms differ by the presence or the absence of short (10 to 20 residues) peptides in various internal locations in the sequence. In general, the major form of MBP is a protein of about 18.5 Kd (170 residues).

In melanocytic cell types, MBP gene expression may be regulated by MITF.


Neoromicia is a genus of vesper bat in the family Vespertilionidae.

It contains the following species:

Dark-brown serotine (Neoromicia brunneus)

Cape serotine (Neoromicia capensis)

Yellow serotine (Neoromicia flavescens)

Neoromicia grandidieri

Tiny serotine (Neoromicia guineensis)

Heller's pipistrelle (Neoromicia helios)

Isabelline white-winged serotine (Neoromicia isabella)

Isalo serotine (Neoromicia malagasyensis)

Malagasy serotine (Neoromicia matroka)

Melck's house bat (Neoromicia melckorum)

Banana pipistrelle (Neoromicia nana)

Rendall's serotine (Neoromicia rendalli)

Rosevear's serotine (Neoromicia roseveari)

Neoromicia robertsi

Somali serotine (Neoromicia somalicus)

Neoromicia stanleyi

White-winged serotine (Neoromicia tenuipinnis)

Aloe serotine (Neoromicia zuluensis)


Nyctalus is a genus of vespertilionid bats commonly known as the noctule bats. They are distributed in the temperate and subtropical areas of Europe, Asia and North Africa.

There are eight species within this genus:

Birdlike noctule, Nyctalus aviator

Azores noctule, Nyctalus azoreum

Japanese noctule, Nyctalus furvus

Greater noctule bat, Nyctalus lasiopterus

Lesser noctule, Nyctalus leisleri

Mountain noctule, Nyctalus montanus

Common noctule, Nyctalus noctula

Chinese noctule, Nyctalus plancyi


The genus Plecotus consists of the long-eared bats. Many species in the genus have only been described and recognized in recent years.


Scotoecus is a genus of bats in the family Vespertilionidae.

Silverwing (series)

The Silverwing Book Series is a series of novels by Kenneth Oppel about the adventures of a young bat. All four books, published between 1997, 1998, 2002 and 2007, are commonly assigned in the curriculum of upper elementary and middle school grades in Canada, and in some parts of the United States.

Small mammals of Yellowstone National Park

There are at least 50 small mammal species known to occur in Yellowstone National Park.

Species are listed by common name, scientific name, typical habitat and relative abundance.

Waskahegan Trail

The Waskahegan Trail is a walking/hiking trail that runs through and around Edmonton, Alberta, Canada. It is 309 km and runs through a mix of public and private land. Landowners are paid nothing. Their permission is given on the understanding that it can be withdrawn at any time for any reason. The trail is managed by a volunteer board, the Waskahegan Trail Association (WTA).


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