nomes no trilho de navegação
The most common predators of southeastern bats appear to be rat snakes and corn snakes, which are common in caves. Other enemies also include climbing mammals, such as opossums, and some species of owls. Large cockroaches can prey on newborns that fall to the ground. Some ectoparasites such as the streblid fly (Trichobius major), the nycteribiid fly (Basilia boardmani) and chiggers (Euschoengastia pipistrelli) have been found on M. austroriparius.
Known Predators:
Myotis austroriparius is a small insectivorous bat with thick, wooly fur, shorter than that found on many similar species. The fur is dark at the base and whitish at the tips. It molts in late summer, shedding a lighter coat for a darker gray. Color variation can depend on the molt, which is correlated with the reproductive status of the individual. Ammonia fumes in large caves also affect the coloring of an individual.
The species has long been considered polytypic and has been divided into three subspecies: M. a. austroriparius, M. a. gatesi, and M. a. mumfordi. There has been research done however to show that this species should be considered monotypic.
Total length of these bats ranges from 77 to 89 mm for males, and 80 to 97 mm for females. Forearms are between 33 and 40 mm, with males averaging slightly smaller forearms than females giving the species an average wingspread is about 238 to 270 mm. The tail is between 26 and 44 mm. Males of this species weigh between 5.1 and 6.8 g. Females weigh between 5.2 and 8.1 g.
The southeastern bat is distinguished from other myotis bats by its unusually long toe-hairs, which extend past the ends of its claws. It has a large hind foot (10 to 12 mm long). Its calcar is not keeled and its tragus is short and blunt. It has a bare, pinkish nose. It has a low sagittal crest that can be felt through the skin.
The tooth formula in this species is: 2/3 1/1 3/3 3/3 = 38
Range mass: 5.1 to 8.1 g.
Range length: 77 to 97 mm.
Range wingspan: 270 to 238 mm.
Sexual Dimorphism: female larger
Other Physical Features: endothermic ; bilateral symmetry
The lifespan in the wild may be no more than 4 to 8 years for most individuals, but there are records of banded individuals more than 21 years old and captives are known to have lived more than 20 years.
Range lifespan
Status: wild: 21 (high) years.
Range lifespan
Status: captivity: 20 (high) years.
Typical lifespan
Status: wild: 4 to 8 years.
Myotis austroriparius is predominantly a cave bat, where suitable caves occur. It will also roost in human habitations and structures such as attics, barns, bridges, and mines as well as in hollow trees or under bark. The bats are closely associated with water, as they forage ovr water when feeding at night.
Habitat Regions: temperate
Other Habitat Features: caves
Myotis austroriparius has a disjunct distribution in the southeastern United States. It occurs locally in southeastern North Carolina, central Georgia, southern and western Alabama, western Tennessee and Arkansas, southeastern Oklahoma, and eastern Texas. It also lives along the Ohio River Valley in Kentucky, Indiana and Illinois. A large proportion of the total population is found in Florida.
Biogeographic Regions: nearctic (Native )
Myotis austroriparius is an insectivorous bat that emerges after dark and feeds by flying low over the water, usually within 60 cm of the surface, and capturing prey in flight. Species from Coleoptera, Lepidoptera, and Diptera make up its diet. More specifically, it catches midges, mosquitoes, small moths, small beetles and cane flies.
Animal Foods: insects
Primary Diet: carnivore (Insectivore )
Similar to other insectivorous animals, southeastern bats play an important ecosystem role in controlling insect populations.
Just like other insectivores, this bat is highly beneficial to humans because they feed on a variety of nocturnal insects such as mosquitoes.
Positive Impacts: controls pest population
As do all Vespertilionids, or mouse-eared bats, M. austroriparius has a well-developed sense of oral echolocation. They have plain noses and their earlobes form a tragus which is used for foraging. However, this echolocation is probably not used much in communication with conspecifics.
In communicating with conspecifics, it is likely that these bats are much like other members of the genus. They probably use audible vocal signals, as well as some tactile communication. Visual communication is probably not very important for this species.
Communication Channels: tactile ; acoustic
Perception Channels: visual ; tactile ; acoustic ; ultrasound ; echolocation ; chemical
The U.S. Fish and Wildlife Service currently list southeastern bats as a Species of Concern. The population of these animals has declined across much of its range for several reasons. Alteration of their critical cave habitat is the most likely cause. The closing off of their entrances, flooding by dams, vandalism and campfires, has altered caves. Clear cutting of forest surrounding the caves is also known to affect southeastern bats. Hibernating bats can be awakened by excessive human visitation, causing the bats to use important fat reserves. If maternal colonies are disturbed, female bats may abandon young. Populations of up to 250,000 individuals have been documented in caves in northern Florida and the species appears to be rare in the rest of its range. This apparent rarity could be an artifact of lack of knowledge about the species and its locations. Enforcement of cave protection is often difficult and impractical but Florida's maternity caves urgently need protection.
Temperate North American bats are now threatened by a fungal disease called “white-nose syndrome.” This disease has devastated eastern North American bat populations at hibernation sites since 2007. The fungus, Geomyces destructans, grows best in cold, humid conditions that are typical of many bat hibernacula. The fungus grows on, and in some cases invades, the bodies of hibernating bats and seems to result in disturbance from hibernation, causing a debilitating loss of important metabolic resources and mass deaths. Mortality rates at some hibernation sites have been as high as 90%. While there are currently no reports of Myotis austroriparius mortalities as a result of white-nose syndrome, the disease continues to expand its range in North America.
US Federal List: no special status
CITES: no special status
IUCN Red List of Threatened Species: least concern
Like other members of the genus, M. austroriparius can come into conflict with humans by occupying buildings. It is also a common concern that bats can spread rabies, but incidence of rabies in bats is quite low. There is currently no evidence of M. austroriparius being involved in the transmission of any particular case of rabies, so human concerns about this species as a vector of the disease are more theorhetical than pratical.
Negative Impacts: injures humans (carries human disease); causes or carries domestic animal disease ; household pest
As in most Myotis species, the mating system of this bat is poorly documented.
In Florida, mating is from mid-February to mid-April. Nursery colonies begin to form in mid-March. Myotis austroriparius colonies are usually between 2,000 and 90,000 individuals. These colonies tend to roost in caves that contain water. In late April to mid-May the altricial young are born. Myotis austroriparious is the only species of Myotis known to give birth to twin young. Ninety percent of females in this species produce twins (one from each uterus). Delayed fertilization does not occur in southeastern bats in Florida. There is not much known about the reproduction of the northern populations of the southeastern bat. Only a couple small maternity colonies have been found, such as one in a tree cavity in Illinois.
During birth, the mother forms a receptacle to catch the young. The placenta does not appear until several hours after birth, the mother pulls it out with her teeth, and proceeds to devour it. Partuition occurs generally during the day.
The young are born naked, with their eyes and ears closed, and weigh slightly more than 1 gram each. Baby bats are large enough to fly in 5 or 6 weeks. They grow rapidly and sexual maturity is reached in both sexes before the bats are a year old.
There is a high rate of pre-weaning mortality in M. austroriparius. Since southeastern bats usually roosts in caves with water, many young bats fall and drown. Even in roosting sites with no water below, a fall for a young bat usually results in death. The mortality is most severe shortly after birth. Twinning in M. austroriparius is thought to be an adaptive response to this high mortality of young.
Breeding interval: These bats apparently breed once per year.
Breeding season: Breeding occurs from February to April in Florida, although timing is probably different in the northern portion of the species' range.
Range number of offspring: 1 to 3.
Range age at sexual or reproductive maturity (female): 1 (high) years.
Range age at sexual or reproductive maturity (male): 1 (high) years.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; fertilization ; viviparous
The parental care of M. austroriparius is not well documented. As in all mammals, the mother provides milk for her young. She also protects and grooms them. Mortality for young bats is high, as they often fall to their deaths. The role of the father in parental care in this species has not been reported.
Parental Investment: no parental involvement; altricial ; pre-fertilization (Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Female)
El ratpenat del sud-est dels Estats Units (Myotis austroriparius) és una espècie de ratpenat de la família dels vespertiliònids. És endèmic dels Estats Units. Els seus hàbitats naturals són els boscos de plana riberencs i les zones humides amb vegetació i una gran massa d'aigua a prop. Es creu que no hi ha cap amenaça significativa per a la supervivència d'aquesta espècie, tot i que ha estat afectada per l'ús de pesticides i la pertorbació humana dels seus hàbitats.[1]
El ratpenat del sud-est dels Estats Units (Myotis austroriparius) és una espècie de ratpenat de la família dels vespertiliònids. És endèmic dels Estats Units. Els seus hàbitats naturals són els boscos de plana riberencs i les zones humides amb vegetació i una gran massa d'aigua a prop. Es creu que no hi ha cap amenaça significativa per a la supervivència d'aquesta espècie, tot i que ha estat afectada per l'ús de pesticides i la pertorbació humana dels seus hàbitats.
The southeastern myotis (Myotis austroriparius) is a small bat found throughout the Gulf Coastal Plain and the Lower Mississippi Alluvial Plain of the southeastern United States.
The southeastern myotis weighs 5–8 g. Its diet consists predominantly of insects. All species of the genus Myotis, including the southeastern bat, rest by day and forage at night. They often hunt and feed over water. The feeding flights usually alternate with periods of rest, during which the bats hang to digest their catch. The southeastern bat has a wingspan of about 9-11 inches. Pelage varies from gray to bright orange-brown, with females generally being more brightly colored than the males. Southeastern bats are unique among Myotis of the United States in the production of twins; all other Myotis females usually produce one baby.
This species is occasionally observed roosting with Rafinesque's big-eared bats.[2]
The range of this species includes southern Illinois and Indiana in the north, westward into southeastern Oklahoma, western Tennessee and Arkansas, and northeastern Texas, and eastward to the southern part of North Carolina. Disjunct populations of this species occur in the Ohio River Valley of Kentucky, and the majority of the population lives in the northern half of the peninsula of Florida[3]
Southeastern myotis are an important food source for barred owls, particularly in the nesting season.[4] They are less important as a food source outside of the nesting season.[4]
The diet of the southeastern myotis diverges from many other Myotis species by lacking high diet diversity. Their diet diversity index of 3.26 is derived from a diet consisting of 59.0% trichopterans. This species was observed consuming few arachnids and coleopterans. Their diet is most similar to eastern pipistrelle than any other species of Myotis in their consumption of caddisflies.[5]
Bottomland hardwood forests are facets of southeastern myotis ecology. This species roosts and forages near water. Bottomland hardwood forests typically contain bald cypress and water tupelo which are common roosting trees of bottomland bats. Suitable habitats consist of trees of sufficient size and maturity sufficient for tree cavities to form. There is a positive correlation between captures of this species with percent oaks and a negative correlation with percent bald cypress. A direct relationship for this species exists with increased captures in younger forests of high stem density, low canopy height, and increasing ground cover.[6] They are also known to roost in caves, cisterns, abandoned buildings, and under bridges. The southeastern myotis shows preference for roost trees with the smallest DBH values available and tend to roost in densely packed clusters at cavity apexes.[7]
The southeastern myotis is currently listed (informally) by the U.S. Fish and Wildlife Service as a species of management concern. This species is associated with bottomland hardwood forests. This habitat type has suffered a loss of land cover with the estimation of only 15-25% of pre-colonial forested wetlands remaining in the southeastern United States. This species lives in a different forest system than species known as benefitting from forest harvests or thinning. Selectively logging non-cavity trees may leave roost trees, but it could potentially cause alternative disturbances to this species.[7] Some habitats are impacted by nearby areas with extensive agricultural development from lack of sufficient buffering. Flood pulses common to bottomland ecosystems could potentially impact the species. These inundations can cause drowning of maternity colonies or reduced availability of prey by disrupting larval insects.[6]
.jpg)
{{cite web}}: CS1 maint: archived copy as title (link) The southeastern myotis (Myotis austroriparius) is a small bat found throughout the Gulf Coastal Plain and the Lower Mississippi Alluvial Plain of the southeastern United States.
Myotis austroriparius es una especie de murciélago de la familia Vespertilionidae.
Se encuentra sólo en los Estados Unidos.
Myotis austroriparius es una especie de murciélago de la familia Vespertilionidae.
Myotis austroriparius Myotis generoko animalia da. Chiropteraren barruko Myotinae azpifamilia eta Vespertilionidae familian sailkatuta dago
Myotis austroriparius Myotis generoko animalia da. Chiropteraren barruko Myotinae azpifamilia eta Vespertilionidae familian sailkatuta dago
Myotis austroriparius est une espèce de chauves-souris nord-américaine de la famille des Vespertilionidae.
Myotis austroriparius pèse 5 à 8 g. Elle a une envergure d'environ 23 à 28 cm. Le pelage varie du gris au brun orangé vif, les femelles étant généralement plus brillantes que les mâles[1].
L'aire de répartition de cette espèce comprend le sud de l'Illinois et de le nord de l'Indiana, vers l'ouest jusqu'au sud-est de l'Oklahoma, l'ouest du Tennessee et de l'Arkansas, et le nord-est du Texas, et vers l'est jusqu'au sud de la Caroline du Nord. Des populations isolées de cette espèce se trouvent dans la vallée de l'Ohio, dans le Kentucky, et la majorité de la population vit dans la moitié nord de la péninsule de Floride[2].
Le régime alimentaire du Myotis austroriparius diverge de nombreuses autres espèces de Myotis par un manque de diversité alimentaire élevée. Son indice de diversité alimentaire de 3,26 est dérivé d'un régime composé de 59% de trichoptères, peu d'arachnides et de coléoptères. Son alimentation est plus similaire à la pipistrelle de l'Est que toute autre espèce de Myotis dans sa consommation de trichoptères[3].
Toutes les espèces du genre Myotis, y compris Myotis austroriparius, se reposent le jour et se nourrissent la nuit. Ils chassent et se nourrissent souvent au-dessus de l'eau. Les vols d'alimentation alternent généralement avec des périodes de repos, pendant lesquelles les chauves-souris pendent pour digérer leurs prises.
Les forêts de feuillus des basses terres sont des habitats du Myotis austroriparius. Cette espèce se perche et se nourrit près de l'eau. Les forêts de feuillus des basses terres contiennent généralement des cyprès de Louisiane et des Nyssa aquatica qui sont des arbres de repos communs des chauves-souris des basses terres. Les habitats convenables sont constitués d'arbres de taille et de maturité suffisantes pour que des cavités d'arbres se forment. Il existe une corrélation positive entre les captures de cette espèce avec le pourcentage de chênes et une corrélation négative avec le pourcentage de cyprès de Louisiane. Il existe une relation directe pour cette espèce avec des captures accrues dans les forêts plus jeunes à forte densité de tiges, à faible hauteur de couvert et à augmentation de la couverture du sol. L'espèce est également connue pour se percher dans des grottes, des citernes, des bâtiments abandonnés et sous des ponts. Le Myotis austroriparius montre une préférence pour les arbres de repos avec les plus petits diamètres à hauteur de poitrine et ont tendance à se percher en grappes densément aux sommets des cavités.
Cette espèce est parfois observée perchée avec les Corynorhinus rafinesquii[4] et aussi Tadarida brasiliensis en Floride,
Le Myotis austroriparius est une importante source de nourriture pour les chouettes rayées, en particulier pendant la saison de nidification. Une paire de chouettes rayées nicheuses a produit 13 boulettes contenant des restes de chauves-souris au cours d'une période d'un mois, contenant les crânes de 37 Myotis austroriparius. Il est moins important comme source de nourriture en dehors de la saison de nidification[5].
Myotis austroriparius a pour parasite le protozoaire Polychromophilus (en) murinus et le fonge Pseudogymnoascus destructans], responsable du syndrome du nez blanc, qui infecte cette espèce.
Les Myotis austroriparius sont uniques chez les myotis des États-Unis dans la production de jumeaux ; toutes les autres femelles myotis produisent généralement un bébé.
Myotis austroriparius est une espèce de chauves-souris nord-américaine de la famille des Vespertilionidae.
Myotis austroriparius (Rhoads, 1897) è un pipistrello della famiglia dei Vespertilionidi endemico degli Stati Uniti d'America.[1][2]
Pipistrello di piccole dimensioni, con la lunghezza totale tra 77 e 97 mm, la lunghezza dell'avambraccio tra 33 e 40 mm, la lunghezza della coda tra 26 e 44 mm, la lunghezza del piede tra 7 e 12 mm, la lunghezza delle orecchie tra 9 e 16 mm e un peso fino a 8,1 g.[3]
La pelliccia è corta, densa e lanosa. Le parti dorsali sono bruno-giallastre o bruno-grigiastre, mentre le parti ventrali sono giallo-brunastre. In estate effettua una muta del pelo che diviene inferiormente bianco. Negli esemplari osservati nello stato dell'Indiana, questo colore sembra persistere anche in inverno. Il muso è rosato. Le orecchie sono moderatamente lunghe, strette e arrotondate. Il trago è lungo circa la metà del padiglione auricolare, lanceolato, smussato e con un piccolo lobo rotondo alla base del bordo posteriore. Le ali sono attaccate posteriormente alla base delle dita del piede. Le dita dei piedi sono ricoperte di lunghi peli che si estendono fino alle punte degli artigli. La lunga coda è inclusa completamente nell'ampio uropatagio. Il calcar è privo di carenatura. Il cariotipo è 2n=44 FNa=50.
Si rifugia in gruppi all'interno di grotte, edifici, sotto ponti, in miniere o cavità degli alberi, talvolta insieme a Tadarida brasiliensis e Myotis grisescens. I siti variano secondo le stagioni, effettuando tuttavia brevi spostamenti non superiori a 80 km. Forma vivai di diverse migliaia di femmine con i loro piccoli, mentre i maschi tendono ad essere solitari o a formare piccole colonie di scapoli. Nella parte più settentrionale dell'areale entra in ibernazione. L'attività predatoria inizia in tarda serata.
Si nutre principalmente di ditteri e in misura minore di coleotteri catturati in volo su specchi d'acqua.
Gli accoppiamenti avvengono tra metà febbraio e metà aprile e le nascite tra fine aprile e metà maggio. Danno alla luce 2 piccoli alla volta. Diventano indipendenti dopo tre settimane di vita.
Questa specie è endemica degli Stati Uniti d'America sud-orientali, negli stati del Texas orientale, Oklahoma sud-orientale, Louisiana, Mississippi; Arkansas meridionale ed orientale, Missouri sud-orientale, Illinois e Indiana meridionali; Kentucky e Tennessee occidentali; Alabama meridionale ed occidentale, Georgia, Florida settentrionale e centrale, Carolina del Sud e Carolina del Nord sud-orientale.
Vive nelle foreste ripariali.
La IUCN Red List, considerato il vasto areale, la popolazione presumibilmente numerosa e la presenza in diverse aree protette, classifica M.austroriparius come specie a rischio minimo (LC).[1]
Myotis austroriparius (Rhoads, 1897) è un pipistrello della famiglia dei Vespertilionidi endemico degli Stati Uniti d'America.
Myotis austroriparius is een vleermuis uit de familie van de gladneuzen (Vespertilionidae). De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Samuel N. Rhoads in 1897.
De soort komt voor in de Verenigde Staten.
Bronnen, noten en/of referentiesMyotis austroriparius is een vleermuis uit de familie van de gladneuzen (Vespertilionidae). De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Samuel N. Rhoads in 1897.
Myotis austroriparius é uma espécie de morcego da família Vespertilionidae.
Apenas pode ser encontrada nos Estados Unidos da América.
Myotis austroriparius é uma espécie de morcego da família Vespertilionidae.
Apenas pode ser encontrada nos Estados Unidos da América.
Myotis austroriparius[2][3][4][5][6] är en fladdermusart som först beskrevs av Samuel N. Rhoads 1897. Den ingår i släktet Myotis och familjen läderlappar.[7][8] Inga underarter finns listade i Catalogue of Life.[7]
Arten har tjock men ganska kort päls, som är mörkare vid hårrötterna och ljusare i spetsen.[9] Färgen varierar från grå till klart brunorange; honorna har i regel klarare färger än hanarna.[10] Kroppslängden, inklusive den 2,5 till 4,5 cm långa svansen, är knappt 8 till 9 cm hos hanarna, 8 till knappt 10 cm hos honorna. Underarmslängden är 3 till 4 cm, vilket ger fladdermusen en vingbredd från 24 till 27 cm. Vikten är mellan 5,1 och 6,8 g hos hanarna, samt mellan 5,2 och 8,1 g hos honorna.[9]
Denna fladdermus förekommer i sydöstra USA från Illinois och Indiana till östra Texas och centrala Florida.[1]
Habitatet utgörs främst av skogar intill floder samt av träskmarker med buskar eller träd. Jakten sker vanligen över sjöar, dammar eller över långsamt flytande vattendrag.[1]
I den södra delen av utbredningsområdet söker individerna på vintern ofta daglega (arten är nattaktiv) över vattenytor, till exempel under broar, i vägtrummor, i båthus eller i liknande gömställen. I Florida kan den även sova i grottor under vintern.[1]
I norra delen av utbredningsområdet sover arten vintersömn[9] och väljer då grottor eller utrymmen mellan byggnader där de kan sova i upp till 7 månader (från september eller oktober till februari eller mars). De sover vanligen i täta hopar med upp till 50 individer.[10]. I områdena strax norr om Florida förekommer det att individerna går i dvala när temperaturen är låg, under 4 ºC, men vaknar igen och blir aktiva när den åter blir varmare.[11][10]
Myotis austroriparius är nära knuten till vattensamlingar, eftersom de fångar sitt byte över sådana. Arten är nattaktiv, och flyger på låg höjd, vanligen under 60 cm över vattenytan, för att fånga nattflygande insekter ur ordningarna fjärilar, skalbaggar och tvåvingar.[9]
Själv utgör arten föda åt djur som råttsnokar och majsormar, som är vanliga i grottor, nordamerikansk opossum, ugglor samt stora kackerlackor, som kan ta nerfallna, nyfödda ungar.[9]
Inte mycket är känt om fortplantningen hos de nordliga populationerna. I Florida infaller parningstiden under mitten av februari till mitten av april. Yngelkolonier (med enbart dräktiga honor och senare ungar) börjar bildas vid mitten av mars.[9] Dessa kolonier kan bli mycket stora, vanligen mellan 2 000 och 90 000 individer,[9] och förläggs till grottor som är varma och som har hög luftfuktighet[1]. Denna art är ovanlig genom att två ungar är det vanliga antalet som föds; 90 % av honorna får tvillingar. I undantagsfall kan de även få tre ungar. Ungarna är outvecklade, nakna och blinda, och väger strax över 1 g vardera. De kan flyga vid en ålder av 5 till 6 veckor, och blir könsmogna före ett års ålder.[9]
IUCN kategoriserar arten globalt som livskraftig och populationen i stort är stabil. Floridapopulationen har dock minskat kraftigt sedan 1950-talet. Orsakerna är inte säkert kända, men man misstänker att mänskliga störningar, speciellt av yngelkolonier, spelar en stor roll.[1] Dessutom har man sedan 2007 kunnat konstatera kraftiga utbrott hos andra fladdermöss i samband med övervintringen av en dödlig svampsjukdom, White nose syndrome.[9] Man har påträffat den sjukdomsalstrande svampen (Pseudogymnoascus destructans) på denna art, men inga fall av utbruten sjukdom har ännu (2016) konstaterats.[12]
Wikimedia Commons har media som rör Myotis austroriparius.
Wikispecies har information om Myotis austroriparius.
Myotis austroriparius är en fladdermusart som först beskrevs av Samuel N. Rhoads 1897. Den ingår i släktet Myotis och familjen läderlappar. Inga underarter finns listade i Catalogue of Life.
Myotis austroriparius — вид роду Нічниця (Myotis).
Діапазон поширення включає в себе південний схід США. Раціон складається в основному з комах. Вони часто полюють і харчуються над водою. Забарвлення волосяного покриву варіює від сірого до яскраво-оранжево-коричневого, самиці, зазвичай більш яскраві, ніж самці.
Myotis austroriparius — вид роду Нічниця (Myotis).
Myotis austroriparius là một loài động vật có vú trong họ Dơi muỗi, bộ Dơi. Loài này được Rhoads mô tả năm 1897.[2]
Phương tiện liên quan tới Myotis austroriparius tại Wikimedia Commons
Bài viết họ Dơi muỗi này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Myotis austroriparius là một loài động vật có vú trong họ Dơi muỗi, bộ Dơi. Loài này được Rhoads mô tả năm 1897.
남동부윗수염박쥐(Myotis austroriparius)는 애기박쥐과 윗수염박쥐속에 속하는 박쥐이다.[1] 작은 박쥐로 미국 남동부 지역의 걸프 코스트 평원과 미시시피 강 하류 충적토 평원에서 발견된다.
남동부윗수염박쥐는 몸무게가 5~8g이다. 먹이는 주로 곤충으로 이루어져 있다. 남동부윗수염박쥐를 포함하여 윗수염박쥐속의 모든 종은 낮 동안에는 휴식을 취하고 밤에 먹이를 구하러 움직인다. 사냥을 하거나 물을 먹기도 한다. 먹이를 구하는 비행과 먹이를 소화시키기 위해 매달려 휴식을 취하는 기간이 교대로 이루어진다. 날개폭은 약 23~28cm이다. 털은 회색부터 밝은 오렌지색-갈색까지 다양하고, 암컷은 일반적으로 수컷보다 좀더 밝은 색을 띤다. 윗수염박쥐속의 모든 종들이 한 마리의 새끼를 낳는 반면에 미국의 남동부윗수염박쥐는 두 마리의 새끼를 낳는다. 라피네스크큰귀박쥐와 함께 매달려 있는 모습이 관찰되기도 한다.[2]
남동부윗수염박쥐는 미국 일리노이주 남부 지역과 북쪽의 인디애나주, 서쪽으로 오클라호마주 남동부, 테네시주 서부와 아칸소주, 텍사스주 북동부와 동쪽으로 노스캐롤라이나주 남부 지역 일부에서 발견된다. 주 분포 지역에서 떨어져 있는 켄터키주 오하이오 강 계곡에서도 발견되며, 개체군의 대부분은 플로리다 반도 북쪽 절반 이상 지역에서 서식한다.[3]
다음은 윗수염박쥐속의 계통 분류이다.[4]
윗수염박쥐속구대륙 분류군
신대륙 분류군 신북구작은갈색박쥐, 술꼬리박쥐, 킨윗수염박쥐, 긴귀윗수염박쥐
구북구붉은윗수염박쥐, 벨벳윗수염박쥐, 물가윗수염박쥐, 엘리겐트윗수염박쥐
슈바르츠윗수염박쥐, 도미니카윗수염박쥐, 아타카마윗수염박쥐
은색작은박쥐, 산지윗수염박쥐, 검은윗수염박쥐, 노랑윗수염박쥐
