Short-eared bat: Difference between revisions
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{{Short description|Species of bat}} |
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{{Taxobox | name = Short-eared Bat |
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{{Speciesbox |
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| phylum = [[Chordata]] |
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| genus = Cyttarops |
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| ordo = [[Chiroptera]] |
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| familia = [[Emballonuridae]] |
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| authority = [[Oldfield Thomas|Thomas]], 1913 |
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| genus = ''[[Cyttarops]]'' |
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| binomial = ''Cyttarops alecto'' |
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| range_map = Short-eared Bat area.png |
| range_map = Short-eared Bat area.png |
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| range_map_caption = Short-eared |
| range_map_caption = Short-eared bat range |
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|status_ref=<ref name=iucn>{{cite iucn |author=Lim, B. |author2=Miller, B. |author3=Reid, F. |author4=Arroyo-Cabrales, J. |author5=Cuarón, A.D. |author6=de Grammont, P.C. |date=2016 |title=''Cyttarops alecto'' |volume=2016 |page=e.T6206A22022820 |doi=10.2305/IUCN.UK.2016-2.RLTS.T6206A22022820.en |access-date=19 November 2021}}</ref> |
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The ''' |
The '''short-eared bat''' ('''''Cyttarops alecto''''') is a [[bat]] species found in [[Brazil]], [[Costa Rica]], [[Guyana]] and [[Nicaragua]]. It is [[monotypic taxon|the only species]] within its genus. |
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==Description== |
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The short-eared bat is a dark-colored [[sac-winged bat]], similar in appearance to ''Saccopteryx'' or ''Peropteryx'', but differentiated by its long, silky fur, low rounded ears, expanded clavicles, grooved tibia, and cranial frontal cup. Forearms range from {{convert|46|to|47|mm}} long. Skull length ranges from {{convert|13|to|14|mm}}. Females tend to be somewhat larger than males.<ref name="Index for Mammalian Species">{{Cite web | url=http://www.science.smith.edu/msi/ | title=Index for Mammalian Species | access-date=2014-04-24 | archive-date=2012-11-24 | archive-url=https://web.archive.org/web/20121124030734/http://www.science.smith.edu/msi/ | url-status=dead }}{{full|date=November 2022}}</ref> As with all emballonurid bats, short-eared bats use a type of echolocation call that consists of a central, narrowband component and one or two short, frequency-modulated sweeps. All calls are multi-harmonic with most energy concentrated in the second harmonic.<ref>{{cite journal|doi=10.1111/j.1469-7998.2006.00250.x | volume=272 | issue=2 | title=Echolocation calls in Central American emballonurid bats: signal design and call frequency alternation | journal=Journal of Zoology | pages=125–137 | last1 = Jung | first1 = K.| year=2007 }}</ref> |
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==Range and population== |
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The currently known range of this species extends from the Caribbean lowlands of Costa Rica through Guyana to the state of Para, Brazil and it has never been found in elevations below {{convert|300|m}}.<ref name="Index for Mammalian Species"/> The exact population size of the short-eared bat is unknown, but this is one of the rarest Neotropical bats, known from fewer than twenty individuals taken from less than ten localities in humid lowland areas.<ref>Emmons and Feer 1997; Reid 1997{{full|date=November 2022}}</ref> They face no immediate threats and are listed as being of [[Least Concern]] by the [[IUCN]].<ref name=iucn/> |
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==Behavior== |
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Aerial insectivores, ''Cyttarops alecto'' roosts in small groups of one to ten individuals of both sexes and mixed ages under fronds of coco palms during the day.<ref name="Index for Mammalian Species"/> It hangs freely by the feet when roosting near the midrib of a frond. They are nocturnal so activity doesn't usually start until about 45 min after sunset and is usually restricted to the immediate area around the roost for the first 15 to 30 min. Once it is completely dark, individuals disperse, flying at least 3 to 4 m above ground.<ref name=iucn/> Roosts are often located in exposed places and even by buildings actively occupied by humans, demonstrating they can be adaptable to human-disturbed areas. |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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* Lim, B., Miller, B., Reid, F., Arroyo-Cabrales, J., Cuarón, A.D. & de Grammont, P.C. 2008. {{IUCNlink|6206|Cyttarops alecto}}. [http://www.iucnredlist.org 2008 IUCN Red List of Threatened Species.] Downloaded on 4 March 2009. |
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*[http://www.natureserve.org/infonatura/ Infonatura] |
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{{Emballonuridae}} |
{{Emballonuridae}} |
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{{Taxonbar|from=Q301357}} |
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{{DEFAULTSORT:Short-Eared Bat}} |
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[[Category:Bats of South America]] |
[[Category:Bats of South America]] |
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[[Category: |
[[Category:Bats of Central America]] |
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[[Category:Bats of Brazil]] |
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[[Category:Mammals of Colombia]] |
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[[Category:Emballonuridae]] |
[[Category:Emballonuridae]] |
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[[Category:Mammals |
[[Category:Mammals described in 1913]] |
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[[Category: |
[[Category:Taxa named by Oldfield Thomas]] |
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{{bat-stub}} |
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Latest revision as of 11:20, 29 March 2023
| Short-eared bat | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Chiroptera |
| Family: | Emballonuridae |
| Genus: | Cyttarops Thomas, 1913 |
| Species: | C. alecto
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| Binomial name | |
| Cyttarops alecto Thomas, 1913
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| Short-eared bat range | |
The short-eared bat (Cyttarops alecto) is a bat species found in Brazil, Costa Rica, Guyana and Nicaragua. It is the only species within its genus.
Description
[edit]The short-eared bat is a dark-colored sac-winged bat, similar in appearance to Saccopteryx or Peropteryx, but differentiated by its long, silky fur, low rounded ears, expanded clavicles, grooved tibia, and cranial frontal cup. Forearms range from 46 to 47 millimetres (1.8 to 1.9 in) long. Skull length ranges from 13 to 14 millimetres (0.51 to 0.55 in). Females tend to be somewhat larger than males.[2] As with all emballonurid bats, short-eared bats use a type of echolocation call that consists of a central, narrowband component and one or two short, frequency-modulated sweeps. All calls are multi-harmonic with most energy concentrated in the second harmonic.[3]
Range and population
[edit]The currently known range of this species extends from the Caribbean lowlands of Costa Rica through Guyana to the state of Para, Brazil and it has never been found in elevations below 300 metres (980 ft).[2] The exact population size of the short-eared bat is unknown, but this is one of the rarest Neotropical bats, known from fewer than twenty individuals taken from less than ten localities in humid lowland areas.[4] They face no immediate threats and are listed as being of Least Concern by the IUCN.[1]
Behavior
[edit]Aerial insectivores, Cyttarops alecto roosts in small groups of one to ten individuals of both sexes and mixed ages under fronds of coco palms during the day.[2] It hangs freely by the feet when roosting near the midrib of a frond. They are nocturnal so activity doesn't usually start until about 45 min after sunset and is usually restricted to the immediate area around the roost for the first 15 to 30 min. Once it is completely dark, individuals disperse, flying at least 3 to 4 m above ground.[1] Roosts are often located in exposed places and even by buildings actively occupied by humans, demonstrating they can be adaptable to human-disturbed areas.
References
[edit]- ^ a b c Lim, B.; Miller, B.; Reid, F.; Arroyo-Cabrales, J.; Cuarón, A.D.; de Grammont, P.C. (2016). "Cyttarops alecto". IUCN Red List of Threatened Species. 2016: e.T6206A22022820. doi:10.2305/IUCN.UK.2016-2.RLTS.T6206A22022820.en. Retrieved 19 November 2021.
- ^ a b c "Index for Mammalian Species". Archived from the original on 2012-11-24. Retrieved 2014-04-24.[full citation needed]
- ^ Jung, K. (2007). "Echolocation calls in Central American emballonurid bats: signal design and call frequency alternation". Journal of Zoology. 272 (2): 125–137. doi:10.1111/j.1469-7998.2006.00250.x.
- ^ Emmons and Feer 1997; Reid 1997[full citation needed]