Contents 1 Habitat 2 Life Cycle 3 Behavior 4 Predation 5 References

Habitat[edit] The genus Myotis consists of more than 100 species worldwide, except the Antarctic. Specifically, Myotis nigricans is found in South Mexico (Veracruz,Oaxaca y Chiapas) to Peru, Bolivia, North Argentina, Paraguay, South Brazil, Trinidad and Tobago, and Lesser Antilles (St. Martin, Montserrat and Grenada).[2] This bat species lives in spaces like tree barks, foliages, and the ceilings of buildings and houses.[3] Myotis nigricans is able to cohabit with other species of its genus and share food and roosts.[4] However, competition over food and roosts has been seen with other insectivorous bats.[5]

Life Cycle[edit] Gestation lasts 60 days in Myotis nigricans.[6] For the first 2 or 3 days after birth, the young remain in close proximity with their mother. After this time mothers leave their young in groups in the roost at night in order to hunt. On their return to the roost, mothers will use olfactory and auditory skills to locate their respective young.[5] By week 2 after birth, the young have already reached adult weight. Flight begins at week 3 and takes one to two weeks before complete competence is achieved.[5] Weaning occurs at week 5 or 6 after birth[5] and occurs during the wet season, in April, when there is an abundance of insects.[6] Any time after weaning the grown bat will leave the roost it was born in.[5] Longevity of 7 years have been recorded for Myotis nigricans.[7]

Behavior[edit] Studies testing homing skills in the Myotis nigricans suggests that the bats are able to recognize an area with a radius of 13 km. Some bats that were displaced 50 km from the roost were able to find their way back within 2 days.[6] In favorable weather conditions, bats leave the roost an hour after sunset and return from hunting an hour before sunrise.[5] The body temperature varies, depending on the ambient temperature. When the body temperature is cooler the bats enter a state of torpor and remain in that state until the body temperature has warmed.[8] In order to cool body temperature, they show behavioral thermoregulation by spreading out in the roost into smaller groups.[5]

Predation[edit] Young bats have high mortality rates because of predation, disease, and parasitism. Opossums, cats, and other bats are some mammalian predators of the black myotis. Other predators include snakes, cockroaches, and spiders.[5] Young bats also face the trouble of ectoparasites, including mites, bat mites, soft ticks, hard ticks, chigger mites, fleas, and bat flies.[9]

References[edit] ^ Barquez, R.; Perez, S.; Miller, B. & Diaz, M. (2008). "Myotis nigricans". The IUCN Red List of Threatened Species. IUCN. 2008: e.T14185A4417374. doi:10.2305/IUCN.UK.2008.RLTS.T14185A4417374.en. Retrieved 9 November 2017.  ^ Simmons, N.B. ^ Gonzales, J.C. ^ Ruedi, M. and Mayer, F., Stadelmann, et al. ^ a b c d e f g h Wilson, D.E. ^ a b c Wilson, D.E. and Findley, J.S. ^ Wilson, D.E. and Tyson, E.L. ^ Studier, E.H. and Wilson, D.E. ^ Wenzel, R.L. and Tipton, V.J. Chiroptera Specialist Group 2000. Myotis nigricans. 2008 IUCN Red List of Threatened Species. Downloaded on 26 October 2008. michaelswartbats.php[permanent dead link] black_myotis.htm Gonzalez, J.C., 2000. Morcegos da área urbana de Porto Alegre, Rio Grande do Sul, Brasil. Divulg. Mus. Ciênc. Tecnol. - PUCRS, vol. 1, no. 5, p. 53- 82. [1] Ruedi, M. and Mayer, F., 2001. Molecular systematics of bats of the genus Myotis (Vespertilionidae) suggests deterministic ecomorphological convergences. Mol. Phylogenet. Evol., vol. 21, no. 3, p. 436-448. [2] Simmons, N.B., 2005. Order Chiroptera. In WILSON, DE. and REEDER, DM. (Eds.). Mammal species of the world: a taxonomic and geographic reference. Baltimore: Johns Hopkins University Press. p. 312- 529. [3] Stadelmann, B., Herrera, L.G., Arroyo-Cabrales, J., Flores-Martinez, J.J., May, B.P. and Ruedi, M., 2004. Molecular systematics of the fishing bat Myotis vivesi. J. Mammal., vol. 85, no. 1, p. 133-139. [4] Studier, E.H. and Wilson, D.E. 1970. Thermoregulation in some Neotropical bats. Comp. Biochem. Physiol. 34:251-262. Wenzel, R.L. and Tipton, V.J. 1966. Ectoparasites of Panama. Field Museum of Natural History, Chicago, xii + 861 pp. [5] Wilson, D.E. and Tyson, E.L., 1970. Longevity records for Artibeus jamaicensis and Myotis nigricans. J. Mammal., Vol. 51, no. 1, p. 203. [6] [7] Wilson, D.E. and Findley, J.S., 1970. Reproductive cycle of a Neotropical insectivorous bat, Myotis nigricans. Nature 225:1125 [8] v t e Species of genus Myotis Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Chiroptera Family: Vespertilionidae Subfamily: Myotinae M. adversus M. aelleni M. albescens M. alcathoe M. altarium M. anjouanensis M. annamiticus M. annectans M. atacamensis M. ater M. aurascens M. auriculus M. australis M. austroriparius M. bechsteinii M. blythii M. bocagii M. bombinus M. brandtii M. bucharensis M. californicus M. capaccinii M. chiloensis M. chinensis M. ciliolabrum M. cobanensis M. csorbai M. dasycneme M. daubentonii M. davidii M. dieteri M. dominicensis M. elegans M. emarginatus M. escalerai M. evotis M. fimbriatus M. findleyi M. flavus M. formosus M. fortidens M. frater M. gomantongensis M. goudoti M. gracilis M. grisescens M. hajastanicus M. hasseltii M. hermani M. horsfieldii M. ikonnikovi M. insularum M. keaysi M. keenii M. laniger M. latirostris M. leibii M. levis M. longipes M. lucifugus M. macrodactylus M. macropus M. macrotarsus M. martiniquensis M. melanorhinus M. midastactus M. moluccarum M. montivagus M. morrisi M. muricola M. myotis M. mystacinus M. nattereri M. nesopolus M. nigricans M. nipalensis M. nyctor M. occultus M. oreias M. oxygnathus M. oxyotus M. peninsularis M. pequinius M. petax M. phanluongi M. planiceps M. pruinosus M. punicus M. ricketti M. ridleyi M. riparius M. rosseti M. ruber M. schaubi M. scotti M. septentrionalis M. sicarius M. siligorensis M. simus M. sodalis M. stalkeri M. taiwanensis M. thysanodes M. tricolor M. velifer M. vivesi M. volans M. welwitschii M. yanbarensis M. yumanensis Taxon identifiers Wd: Q139375 ARKive: myotis-nigricans EoL: 327607 GBIF: 2432448 iNaturalist: 40286 ITIS: 632039 IUCN: 14185 MSW: 13802510 NCBI: 153286 Retrieved from "" Categories: IUCN Red List least concern speciesMouse-eared batsMammals of Costa RicaHidden categories: Articles with 'species' microformatsAll articles with dead external linksArticles with dead external links from November 2016Articles with permanently dead external links

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Conservation StatusLeast ConcernIUCN Red ListTaxonomy (biology)AnimaliaChordataMammalChiropteraVespertilionidaeMyotisBinomial NomenclatureHeinrich Rudolf SchinzVesper BatSpeciesSouth AmericaCentral AmericaThe IUCN Red List Of Threatened SpeciesIUCNDigital Object IdentifierWikipedia:Link RotTemplate:Myotis NavTemplate Talk:Myotis NavMouse-eared BatAnimalChordateMammalBatVesper BatMouse-eared BatLarge-footed BatSouthern MyotisSilver-tipped MyotisMyotis AlcathoeSzechwan MyotisAnjouan MyotisAnnamit MyotisHairy-faced BatAtacama MyotisPeters's MyotisMyotis AurascensSouthwestern MyotisAustralian MyotisSoutheastern MyotisBechstein's BatLesser Mouse-eared BatRufous Mouse-eared BatFar Eastern MyotisBrandt's BatBocharic MyotisCalifornia MyotisLong-fingered BatChilean MyotisLarge MyotisWestern Small-footed BatGuatemalan MyotisCsorba's Mouse-eared BatPond BatDaubenton's BatMyotis DavidiiKock's Mouse-eared BatDominican MyotisElegant MyotisGeoffroy's BatMyotis EscaleraiLong-eared MyotisMyotis FimbriatusFindley's MyotisMyotis FlavusHodgson's BatCinnamon MyotisFraternal MyotisGomantong MyotisMalagasy Mouse-eared BatUssuri Whiskered BatGray BatArmenian Whiskered BatLesser Large-footed BatHerman's MyotisHorsfield's BatIkonnikov's BatInsular MyotisHairy-legged MyotisKeen's MyotisMyotis LanigerEastern Small-footed MyotisYellowish MyotisKashmir Cave BatLittle Brown BatEastern Long-fingered BatMyotis MacropusPallid Large-footed MyotisSchwartz's MyotisDark-nosed Small-footed MyotisMyotis MidastactusMyotis MoluccarumBurmese Whiskered BatMorris's BatWall-roosting Mouse-eared BatGreater Mouse-eared BatWhiskered BatNatterer's BatCuracao MyotisMyotis NipalensisMyotis NyctorArizona MyotisSingapore Whiskered BatMyotis OxygnathusMontane MyotisPeninsular MyotisBeijing Mouse-eared BatEastern Water BatMyotis PhanluongiFlat-headed MyotisFrosted MyotisFelten's MyotisRickett's Big-footed BatRidley's BatRiparian MyotisThick-thumbed MyotisRed MyotisSchaub's MyotisScott's Mouse-eared BatNorthern Long-eared MyotisMandelli's Mouse-eared BatHimalayan Whiskered BatVelvety MyotisIndiana BatKei MyotisMyotis TaiwanensisFringed MyotisCape Hairy BatCave MyotisMyotis VivesiLong-legged MyotisWelwitsch's BatYanbaru Whiskered BatYuma MyotisHelp:Taxon IdentifiersWikidataARKiveEncyclopedia Of LifeGlobal Biodiversity Information FacilityINaturalistIntegrated Taxonomic Information SystemIUCN Red ListMammal Species Of The WorldNational Center For Biotechnology InformationHelp:CategoryCategory:IUCN Red List Least Concern SpeciesCategory:Mouse-eared BatsCategory:Mammals Of Costa RicaCategory:Articles With 'species' MicroformatsCategory:All Articles With Dead External LinksCategory:Articles With Dead External Links From November 2016Category:Articles With Permanently Dead External LinksDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer

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