Birdlike noctule

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Birdlike noctule
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Vespertilionidae
Genus: Nyctalus
Species:
N. aviator
Binomial name
Nyctalus aviator
Thomas, 1911
Nyctalus aviator distribution map.png
Distribution map of the birdlike noctule
Synonyms
  • Nyctalus lasiopterus aviator Thomas, 1911

The birdlike noctule (Nyctalus aviator) is a species of bat. It nests in the holes in old trees and buildings, and sometimes in mineshafts. It is distributed across Northeast Asia, from northeast China and Siberia through the Korean Peninsula to Japan.

Contents

Taxonomy

The birdlike noctule was described as a new species in 1911 by British mammalogist Oldfield Thomas. Thomas assigned it the scientific name of Nyctalus aviator. The holotype had been collected in Tokyo in 1904 by H. Ogawa. [2] A 1951 publication treated it as a subspecies of the greater noctule bat with the trinomen of Nyctalus lasiopterus aviator, though it has largely been considered a full species since 1983. [3]

Description

An adult birdlike noctule has a body length of 7.1–9.5 centimetres (2.8–3.7 in), a tail of 5.5–6.4 cm (2.2–2.5 in), and a wing length of 5.8–6.0 cm (2.3–2.4 in). it birdlike noctule has a forearm length of 58–64 mm (2.3–2.5 in). Its thumb is short with a pronounced claw; the third digit is the longest, while the fifth is the shortest. Its fur is yellowish brown, velvety, and dense. The tip of its tail protrudes slightly past the edge of the uropatagium. [4]

Biology and ecology

The birdlike noctule is insectivorous, [1] though also consumes birds. Along with the greater noctule bat and the Asian great evening bat, this is one of three bat species to prey on small, nocturnally-migrating birds, pursuing them in open air. [3] At least one specific bird, Middendorff's grasshopper warbler (Locustella ochotensis), has been identified based on faecal DNA in the diet of N. aviator in Japan. [5]

Range and habitat

Its range includes China, Japan, North Korea, and South Korea. Its presence is possible but unconfirmed in Russia. [1]

Conservation

As of 2019, it is evaluated as a near-threatened species by the IUCN. It is in suspected population decline due to habitat loss and disturbance of its roost sites by humans. [1]

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References

  1. 1 2 3 4 Fukui, D.; Sano, A.; Kruskop, S.V. (2019). "Nyctalus aviator". IUCN Red List of Threatened Species . 2019: e.T14921A22016483. doi: 10.2305/IUCN.UK.2019-3.RLTS.T14921A22016483.en . Retrieved 19 November 2021.
  2. Thomas, O. (1911). "Two new Eastern bats". The Annals and Magazine of Natural History; Zoology, Botany, and Geology. 8. 8: 379–380.
  3. 1 2 Fukui, Dai; Dewa, Hiroshi; Katsuta, Setsuko; Sato, Akiyoshi (2013). "Bird predation by the birdlike noctule in Japan". Journal of Mammalogy. 94 (3): 657–661. doi: 10.1644/12-MAMM-A-172.1 .
  4. Smith, A. T.; Xie, Y., eds. (2013). Mammals of China. Vol. 9. Princeton University Press. p. 249. ISBN   9780691154275.
  5. Heim, Olga; Puisto, Anna I. E.; Fukui, Dai; Vesterinen, Eero J. (2019-06-22). "Molecular evidence of bird-eating behavior in Nyctalus aviator". Acta Ethologica. 22 (3): 223–226. doi: 10.1007/s10211-019-00319-5 . ISSN   1437-9546.