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Orbiculus leaf-nosed bat

Orbiculus leaf-nosed bat
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Hipposideridae
Genus: Hipposideros
Species:
H. orbiculus
Binomial name
Hipposideros orbiculus
Francis, Kock & Habersetzer, 1999
Range map 2011

The orbiculus leaf-nosed bat (Hipposideros orbiculus), also known as the orbiculus roundleaf bat and small disc roundleaf bat, is a species of bat from the family Hipposideridae. The species has been found on the island of Sumatra in Indonesia and on peninsular Malaysia.[2]

Taxonomy

The orbiculus leaf-nosed bat was described as a new species in 1999.[3] The holotype had been collected in Abai Siat, which is southeast of Kota Bharu on the Indonesian island of Sumatra.[1] It is cryptic species with the Ridley's leaf-nosed bat, though the two can be differentiated based on their echolocation characteristics: the frequencies of the two species' calls differ by 19 kHz.[4]

Description

Its forearm length is 46.15–48.50 mm (1.817–1.909 in). Its tail is 26.2–34.2 mm (1.03–1.35 in) long and its ears are 20.6–23.6 mm (0.81–0.93 in) long. It echolocates at around 80 kHz.[5]

Range and status

The orbiculus leaf-nosed bat has been documented in three areas: West Sumatra of Indonesia, near Rawang, Selangor of Malaysia, and Sungkai Wildlife Forest Reserve, which is also in Malaysia.[6]

As of 2015, the orbiculus leaf-nosed bat ess listed as a vulnerable species on the IUCN Red List because of its small extent of occurrence and continuing decline of the extent and quality of its habitat, as well as its population. It had previously been listed as an endangered species but was reevaluated because its extent of occurrence was recalculated to 20,345 km2 (7,855 sq mi).[1][7] The orbiculus leaf-nosed bat is a terrestrial species that prefers lowland rainforests, and its habitat is degrading due to logging, agriculture, infrastructure development, plantations, and forest fire.[1]

References

  1. ^ a b c d Francis, C.; Bates, P.; Kingston, T.; Senawi, J. (2016). "Hipposideros orbiculus". IUCN Red List of Threatened Species. 2016: e.T136192A22008477. doi:10.2305/IUCN.UK.2016-2.RLTS.T136192A22008477.en. Retrieved 19 November 2021.
  2. ^ Simmons, N.B. (2005). "Order Chiroptera". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 375. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. ^ Francis, C. M.; Kock, D.; Habersetzer, J. (1999). "Sibling species of Hipposideros ridleyi (Mammalia, Chiroptera, Hipposideridae)". Senckenbergiana Biologica. 79 (2): 255–270.
  4. ^ Thabah, Adora; Rossiter, Stephen J.; Kingston, Tigga; Zhang, Shuyi; Parsons, Stuart; Mya, Khin MYA; Akbar, Zubaid; Jones, Gareth (2006). "Genetic divergence and echolocation call frequency in cryptic species of Hipposideros larvatus s.l. (Chiroptera: Hipposideridae) from the Indo-Malayan region". Biological Journal of the Linnean Society. 88: 119–130. doi:10.1111/j.1095-8312.2006.00602.x.
  5. ^ Guillén-Servent, Antonio; Francis, Charles M. (2006). "A new species of bat of the Hipposideros bicolor group (Chiroptera: Hipposideridae) from Central Laos, with evidence of convergent evolution with Sundaic taxa". Acta Chiropterologica. 8: 39–61. doi:10.3161/1733-5329(2006)8[39:ANSOBO]2.0.CO;2. S2CID 86102341.
  6. ^ Lim, Voon-Ching; Ramli, Rosli; Bhassu, Subha; Wilson, John-James (2017). "A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library". PLOS ONE. 12 (7): e0179555. Bibcode:2017PLoSO..1279555L. doi:10.1371/journal.pone.0179555. PMC 5526618. PMID 28742835.
  7. ^ IUCN (2001). IUCN Red List Categories and Criteria: Version 3.1 (PDF). IUCN.
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