Mexican big-eared bat

The Mexican big-eared bat (Corynorhinus mexicanus) is a species of vesper bat endemic to Mexico.[1][2][3] They are nocturnal and insectivorous. Their very large ears are located across their foreheads, and when captured, the bats are observed to curl their ears in a protective manner.[4] The adults are usually brown colored, while the juveniles are usually a smokey brown color. They have small noses.[5]

Mexican big-eared bat
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Vespertilionidae
Genus: Corynorhinus
Species:
C. mexicanus
Binomial name
Corynorhinus mexicanus
Distribution of Corynorhinus mexicanus
Synonyms

Plecotus mexicanus (G.M. Allen, 1916)

Habitat and distribution

The Mexican big-eared bat endemic to Mexico and known between Sonora and Coahuila in the north and Michoacan Yucatán in the south;[1][2] it is rare in the southern end of its range and uncommon elsewhere.[1] They are found in high, humid, mountain habitats and seem to prefer areas with pine-oak forests,[6] although they have been found around other types of vegetation, such as sycamore, cottonwood and agave.[4] Being a nocturnal species, they rest during the day; their day-time roosts are in open caves[4] and mine shafts.[7]

Reproduction

Studies of the males of the species show they have one long reproductive cycle per year. The timing of their cycle is dependent on both physiological (body condition, neurological, and endocrine signals) and environmental (temperature and resource availability) factors. The male reproductive organs are the smallest in February, March, and April, then begin development in May and reach their biggest size, determined by weight, around August (where they are about 40 times bigger than they were in April). The best body conditions of the bats were found from May to June, which suggests this cycle is dependent on body condition.[8] Females give birth to a single offspring.[3]

Status

In 1996, the species was listed as lower risk/least concern, but in 2008, it was moved to near threatened. The population sizes of this bat are declining, and the species may soon be threatened.[1] The major threat to the species is humans, disturbing their roosts and causing habitat loss.[9]

See also

References

  1. ^ a b c d e Arroyo-Cabrales, J.; Reid, F. (2008). "Corynorhinus mexicanus". IUCN Red List of Threatened Species. 2008: e.T17599A7164082. doi:10.2305/IUCN.UK.2008.RLTS.T17599A7164082.en.
  2. ^ a b Wilson, D.E.; Reeder, D.M., eds. (2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. ^ a b "Corynorhinus mexicanus Mexican Big-eared Bat". North American Mammals. National Museum of Natural History (NMNH). Retrieved 23 September 2016.
  4. ^ a b c Commissaris, L.R. (1961). "The Mexican Big-Eared Bat in Arizona". Journal of Mammalogy. 42 (1): 61–65. doi:10.2307/1377242. JSTOR 1377242.
  5. ^ Allen, G.M. (1916). "Bats of the genus Corynorhinus". Bulletin of the Museum of Comparative Zoology. 60: 331–356.
  6. ^ Handley, C.O. (1955). "A new pleistocene bat (Corynorhinus) from Mexico". Journal of the Washington Academy of Science. 45: 48–49.
  7. ^ Anderson, S. (1972). "Mammals of Chihuahua, taxonomy and distribution". Bulletin of the American Museum of Natural History. 148: 149–410. hdl:2246/1101.
  8. ^ Miguel, A.L.G.; López-Wilchis, Ricardo; Hernández-Pérez, Omar; Arenas-Ríos, Edith; Rosado, Adolfo (2005). Edwards, Cody (ed.). "Male reproductive cycle of Mexican big-eared bats, Corynorhinus mexicanus (Chiroptera: Vespertilionidae)". The Southwestern Naturalist. 50 (4): 453–460. doi:10.1894/0038-4909(2005)050[0453:MRCOMB]2.0.CO;2.
  9. ^ Ceballos, G. and Oliva, G. 2005. Los mamíferos silvestres de México. Comisión Nacional para el Conocimiento y Uso de la Biodiversidad and Fondo de Cultura Económica, México.
African yellow bat

The African yellow bat (Scotophilus dinganii) is a species of bat in the family Vespertilionidae, the vesper bats. Other common names include African yellow house bat, yellow-bellied house bat, and Dingan's Bat. It is one of fifteen species in the genus Scotophilus.

Anchieta's pipistrelle

Anchieta's pipistrelle (Pipistrellus anchietae) is a species of vesper bat.

It is found in Angola, Democratic Republic of the Congo, South Africa, Zambia, Zimbabwe and Madagascar.

The species inhabits dry savanna and moist savanna habitats.

Arielulus

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

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

Brazilian brown bat

The Brazilian brown bat (Eptesicus brasiliensis), is a bat species from South and Central America.

Corynorhinus

The genus Corynorhinus consists of the big-eared bats, or American long-eared bats. Only three species occur in the genus, all occurring in North America. Members of this group were previously in the genus Plecotus, the long-eared bats, and were also then called lump-nosed bats. Populations of these species are generally uncommon and declining. Two subspecies, the Virginia big-eared bat (C. t. virginianus) and the Ozark big-eared bat (C. t. ingens) are federally endangered.

Corynorhinus species are:

Corynorhinus rafinesquii Rafinesque's big-eared bat

Corynorhinus mexicanus Mexican big-eared bat

Corynorhinus townsendii Townsend's big-eared bat

C. t. ingens Ozark big-eared bat (endangered)

C. t. pallescens western big-eared bat

C. t. townsendii Townsend's big-eared bat

C. t. virginianus Virginia big-eared bat (endangered)

Eptesicus

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)

Glauconycteris

Glauconycteris is a genus of vespertilionid bats in Africa.

Grey long-eared bat

The grey long-eared bat (Plecotus austriacus) is a fairly large European bat. It has distinctive ears, long and with a distinctive fold. It hunts above woodland, often by day, and mostly for moths. It is extremely similar to the more common brown long-eared bat, and was only distinguished in the 1960s, but has a paler belly.

Hypsugo

The genus Hypsugo contains many bats referred to as pipistrelles or pipistrelle bats. They belong to the family Vespertilionidae or vesper bats within the order Chiroptera.

Laephotis

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)

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.

Neoromicia

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

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

Plecotus

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

Scotoecus

Scotoecus is a genus of bats in the family Vespertilionidae.

Scotophilus tandrefana

The western yellow bat (Scotophilus tandrefana) is a species of vesper bat endemic to Madagascar.

Somali serotine

The Somali serotine (Neoromicia somalica) is a species of vesper bat.

It is found in Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Eritrea, Ethiopia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Malawi, Namibia, Nigeria, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, Togo, Uganda, and Zimbabwe.

Its natural habitats are dry savanna and moist savanna.

Vespertilioninae

The Vespertilioninae are a subfamily of vesper bats from the family Vespertilionidae.

Species of subfamily Vespertilioninae
Aeorestes
Antrozous
Arielulus
Barbastella
Bauerus
Chalinolobus
Corynorhinus
Dasypterus
Eptesicus
Euderma
Eudiscopus
Falsistrellus
Glauconycteris
Glischropus
Hesperoptenus
Histiotus
Hypsugo
Ia
Idionycteris
Laephotis
Lasionycteris
Lasiurus
Mimetillus
Neoromicia
Niumbaha
Nyctalus
Nycticeinops
Nycticeius
Nyctophilus
Otonycteris
Parastrellus
Perimyotis
Pharotis
Philetor
Pipistrellus
Plecotus
Rhogeessa
Scoteanax
Scotoecus
Scotomanes
Scotophilus
Scotorepens
Scotozous
Tylonycteris
Vespadelus
Vespertilio

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