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Hipposideros khaokhouayensis ( Catalan; Valencian )

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Hipposideros khaokhouayensis és una espècie de ratpenat de la família dels hiposidèrids. Viu de forma endèmica a Laos. El seu hàbitat natural són en zones de bosc sempre verdes intactes i sense pertorbar. No hi ha cap amenaça significativa per a la supervivència d'aquesta espècie, tot i que està afectada per la pèrdua d'hàbitat.[1]

Referències

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  1. Bates, P.; Francis, C. Hipposideros khaokhouayensis. UICN 2008. Llista Vermella d'espècies amenaçades de la UICN, edició 2008, consultada el 26-04-2013.
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Hipposideros khaokhouayensis: Brief Summary ( Catalan; Valencian )

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Hipposideros khaokhouayensis és una espècie de ratpenat de la família dels hiposidèrids. Viu de forma endèmica a Laos. El seu hàbitat natural són en zones de bosc sempre verdes intactes i sense pertorbar. No hi ha cap amenaça significativa per a la supervivència d'aquesta espècie, tot i que està afectada per la pèrdua d'hàbitat.

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Phou Khao Khouay leaf-nosed bat

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The Phou Khao Khouay leaf-nosed bat (Hipposideros khaokhouayensis) is a species of bat found in Laos and Vietnam.[2] It was described as a new species in 2006. It is considered vulnerable to extinction by the IUCN.

Taxonomy and etymology

The Phou Khao Khouay leaf-nosed bat was described as a new species in 2006, based on specimens collected in central Laos in 1997 and 1998. The authors of the 2006 paper placed it in the bicolor species group of the genus Hipposideros. Its species name "khaokhouayensis" is a Neo-Latin derivative of Phou Khao Khouay, the conservation area where this species was discovered. The authors selected this name "to bring attention to the potential importance of the National Biodiversity Conservation Areas network for preserving natural areas in Lao PDR, as they contain highly distinctive ecosystems, hosting many endemic species such as this one." Its closest relative is the Laotian roundleaf bat; the two species have a genetic distance of 3.91–4.12%.[3]

Description

When it was first encountered, researchers thought that it was the Laotian roundleaf bat, Hipposideros rotalis, as the two species are similar in appearance. The bats they found, however, were echolocating at a frequency 20 kHz above that of H. rotalis, utilizing frequencies of 87–91 kHz. In addition to its echolocation, the Phou Khao Khouay leaf-nosed bat has a smaller nose-leaf than H. rotalis. Its forearm is 45.5–48.5 mm (1.79–1.91 in) long; its tail is 35–37.5 mm (1.38–1.48 in) long; its ear is 24.4–25.2 mm (0.96–0.99 in) long. It weighs 7.7–9.6 g (0.27–0.34 oz), making it a moderate-sized species of the bicolor species group. The fur on its back is long and brown; individual hairs are tricolored, with white bases, dark brown middles, and light brown tips. Fur on its belly is lighter in color than the fur on its back. Its ears are long and broad with blunt tips; they are brown in color.[3]

Biology

Not much is known about its biology or reproduction. While females have been encountered in February, May, and June, no pregnant females have been observed. One female captured in May and another captured in June were lactating, though. This species has a pair of pubic nipples in addition to its pair of thoracic nipples, a feature found in all species of the following families: Craseonycteridae, Rhinopomatidae, Megadermatidae, Rhinolophidae, and Hipposideridae. The function of the pubic nipples could be to allow the pups to cling more securely to their mothers before they are able to fly. Pubic nipples could also function in feeding the pup.[4]

Range and habitat

This species was first discovered in Phou Khao Khouay National Biodiversity Conservation Area.[1] It has been captured at elevations ranging from 180–400 m (590–1,310 ft) above sea level. It has also been found near Vang Vieng, also in central Laos. It has been documented in both disturbed and intact evergreen forests.[3] In 2008, the species was also captured in the mangrove habitat of Cat Ba Biosphere Reserve in Vietnam.[2]

Conservation

It is currently evaluated as vulnerable by the IUCN. It meets the criteria for this designation because its extent of occurrence is likely less than 20,000 km2 (7,700 sq mi), it has been documented in only two locations, and its habitat is experiencing a decline in extent and quality. Even though it occurs in a protected conservation area in Laos, its habitat is still threatened due to lax enforcement of conservation laws.[1] Phou Khao Khouay habitat is threatened by deforestation and the construction of roads and buildings.[3]

References

  1. ^ a b c Douangboubpha , B. (2020) [amended version of 2019 assessment]. "Hipposideros khaokhouayensis". IUCN Red List of Threatened Species. 2020: e.T136819A166602959. doi:10.2305/IUCN.UK.2020-1.RLTS.T136819A166602959.en. Retrieved 18 July 2020.
  2. ^ a b Thong, Vu Dinh; Denzinger, Annette; Sang, Nguyen Van; Huyen, Nguyen Thi Thu; Thanh, Hoang Trung; Loi, Dao Nhan; Nha, Pham Van; Viet, Nguyen Van; Tien, Pham Duc; Tuanmu, Mao-Ning; Huang, Joe Chun-Chia (2021-08-14). "Bat Diversity in Cat Ba Biosphere Reserve, Northeastern Vietnam: A Review with New Records from Mangrove Ecosystem". Diversity. 13 (8): 376. doi:10.3390/d13080376. ISSN 1424-2818.
  3. ^ a b c d Guillén-Servent, A.; Francis, C. 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 (1): 39–61. doi:10.3161/1733-5329(2006)8[39:ANSOBO]2.0.CO;2. S2CID 86102341.
  4. ^ Simmons, N. B. (1993). "Morphology, function, and phylogenetic significance of pubic nipples in bats (Mammalia, Chiroptera)" (PDF). American Museum Novitates (3077).

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Phou Khao Khouay leaf-nosed bat: Brief Summary

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The Phou Khao Khouay leaf-nosed bat (Hipposideros khaokhouayensis) is a species of bat found in Laos and Vietnam. It was described as a new species in 2006. It is considered vulnerable to extinction by the IUCN.

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Hipposideros khaokhouayensis ( Italian )

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Hipposideros khaokhouayensis (Guillén-Servent & Francis, 2006) è un pipistrello della famiglia degli Ipposideridi endemico del Laos.[1][2]

Descrizione

Dimensioni

Pipistrello di piccole dimensioni, con la lunghezza dell'avambraccio tra 46 e 49 mm, la lunghezza della coda tra 37 e 37,5 mm, la lunghezza delle orecchie tra 24 e 26 mm e un peso fino a 9,6 g.[3]

Aspetto

La pelliccia è lunga. Le parti dorsali sono marroni, con la base dei peli bianca, mentre le parti ventrali sono più chiare. Sui lati del collo sono presenti delle bande di peli più scuri. Le orecchie sono marroni, larghe, lunghe e con l'estremità smussata. La foglia nasale presenta una porzione anteriore larga, con un profondo e stretto incavo al centro del bordo inferiore e una foglietta supplementare rudimentale su ogni lato, un setto nasale largo di forma discoidale, una porzione intermedia con due escrescenze ciascuna fornita di una vibrissa, una porzione posteriore con tre setti verticali che la dividono in quattro celle. Nei maschi è presente una sacca frontale da dove fuoriesce un ciuffo di peli scuri e rigidi. La coda è lunga e inclusa completamente nell'ampio uropatagio.

Ecolocazione

Emette ultrasuoni ad alto ciclo di lavoro sotto forma di impulsi a frequenza costante di 69-71 kHz.

Biologia

Alimentazione

Si nutre di insetti.

Riproduzione

Due femmine gravide sono state catturate in giugno.

Distribuzione e habitat

Questa specie è conosciuta soltanto in due località nel nord del Laos.

Vive nelle foreste sempreverdi all'interno di regioni con ammassi calcarei tra 180 e 400 metri di altitudine.

Stato di conservazione

La IUCN Red List, considerato l'areale limitato e il declino nell'estensione e nella qualità del proprio habitat, classifica H.khaokhouayensis come specie vulnerabile (VU).[1]

Note

  1. ^ a b c (EN) Bates, P. & Francis, C. 2008, Hipposideros khaokhouayensis, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.
  2. ^ (EN) D.E. Wilson e D.M. Reeder, Mammal Species of the World. A Taxonomic and Geographic Reference, 3ª ed., Johns Hopkins University Press, 2005, ISBN 0-8018-8221-4.
  3. ^ Francis, 2008.

Bibliografia

  • Charles M.Francis, A Guide to the Mammals of Southeast Asia, Princeton University Press, 2008, ISBN 9780691135519.

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Hipposideros khaokhouayensis: Brief Summary ( Italian )

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Hipposideros khaokhouayensis (Guillén-Servent & Francis, 2006) è un pipistrello della famiglia degli Ipposideridi endemico del Laos.

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Hipposideros khaokhouayensis ( Dutch; Flemish )

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Hipposideros khaokhouayensis is een vleermuis uit het geslacht Hipposideros die voorkomt in Midden-Laos. Binnen dat geslacht behoort hij tot de H. bicolor-groep.

Zowel genetische als morfologische gegevens wijzen er op dat deze soort nauw verwant is aan Hipposideros rotalis, die ook uit Laos komt. Ook de Soendaïsche soorten Hipposideros ridleyi en Hipposideros orbiculus lijken sterk op H. rotalis en H. khaokhouayensis, maar genetisch blijken ze tot een andere subgroep binnen de H. bicolor-groep te behoren. Dit is een goed voorbeeld van convergente evolutie. Er zijn in totaal acht exemplaren bekend. Daarvan zijn er vier gevangen bij de rivier Nam Leuk in de Khao Khouay National Biodiversity Conservation Area, waaronder het holotype, en vier bij Ban Nampe, in de buurt van Vang Vieng in de provincie Vientiane.[2]

H. khaokhouayensis is een middelgrote soort voor zijn geslacht. De rugvacht is lang en bruin, de buikvacht is lichtbruin. Van de meest gelijkende soort, H. rotalis, verschilt hij door het bezit van een kleiner en smaller neusblad, dat ook in enkele andere kenmerken verschilt. De frequentie van de echolocatieroep van H. khaokhouayensis is ook hoger (87 tot 91 kHz). De kop-romplengte bedraagt 44,13 tot 49,98 mm, de staartlengte 34,95 tot 37,51 mm, de achtervoetlengte 7,10 tot 8,27 mm, de oorlengte 24,36 tot 25,24 mm, de voorarmlengte 45,54 tot 48,22 mm en het gewicht 7,7 tot 9,6 gram.[2]

Literatuur

  1. (en) Hipposideros khaokhouayensis op de IUCN Red List of Threatened Species.
  2. a b Guillén-Servent, A. & Francis, C.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(1):39-61.
Wikimedia Commons Zie de categorie Hipposideros khaokhouayensis van Wikimedia Commons voor mediabestanden over dit onderwerp.
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Hipposideros khaokhouayensis: Brief Summary ( Dutch; Flemish )

provided by wikipedia NL

Hipposideros khaokhouayensis is een vleermuis uit het geslacht Hipposideros die voorkomt in Midden-Laos. Binnen dat geslacht behoort hij tot de H. bicolor-groep.

Zowel genetische als morfologische gegevens wijzen er op dat deze soort nauw verwant is aan Hipposideros rotalis, die ook uit Laos komt. Ook de Soendaïsche soorten Hipposideros ridleyi en Hipposideros orbiculus lijken sterk op H. rotalis en H. khaokhouayensis, maar genetisch blijken ze tot een andere subgroep binnen de H. bicolor-groep te behoren. Dit is een goed voorbeeld van convergente evolutie. Er zijn in totaal acht exemplaren bekend. Daarvan zijn er vier gevangen bij de rivier Nam Leuk in de Khao Khouay National Biodiversity Conservation Area, waaronder het holotype, en vier bij Ban Nampe, in de buurt van Vang Vieng in de provincie Vientiane.

H. khaokhouayensis is een middelgrote soort voor zijn geslacht. De rugvacht is lang en bruin, de buikvacht is lichtbruin. Van de meest gelijkende soort, H. rotalis, verschilt hij door het bezit van een kleiner en smaller neusblad, dat ook in enkele andere kenmerken verschilt. De frequentie van de echolocatieroep van H. khaokhouayensis is ook hoger (87 tot 91 kHz). De kop-romplengte bedraagt 44,13 tot 49,98 mm, de staartlengte 34,95 tot 37,51 mm, de achtervoetlengte 7,10 tot 8,27 mm, de oorlengte 24,36 tot 25,24 mm, de voorarmlengte 45,54 tot 48,22 mm en het gewicht 7,7 tot 9,6 gram.

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Hipposideros khaokhouayensis ( Ukrainian )

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Hipposideros khaokhouayensis — є одним з видів кажанів родини Hipposideridae.

Поширення

Країни поширення: Лаос. Цей вид був спійманий між 180 і 400 м над рівнем моря у мозаїці незайманого і порушеного вічнозеленого лісу. Відомий тільки з двох ділянок.

Загрози та охорона

Втрата середовища проживання є можливої ​​загрози для цього виду. Цей вид зустрічається на одній природоохоронній території.

Посилання


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Hipposideros khaokhouayensis: Brief Summary ( Ukrainian )

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Hipposideros khaokhouayensis — є одним з видів кажанів родини Hipposideridae.

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푸카오쿠아이잎코박쥐 ( Korean )

provided by wikipedia 한국어 위키백과

푸카오쿠아이잎코박쥐(Hipposideros khaokhouayensis)는 잎코박쥐과에 속하는 박쥐의 일종이다. 라오스의 토착종이다.[1][2]

특징

작은 박쥐로 전완장은 46~49mm, 꼬리 길이는 37~37.5mm이다. 귀 길이는 24~26mm, 몸무게는 최대 9.6g 정도이다. 털은 길며, 등 쪽은 흰색 바탕에 갈색을 띠는 반면에 배 쪽은 희다.

생태

먹이는 곤충이다. 6월에 임신한 두 마리의 암컷을 포획한 기록이 있다.

분포 및 서식지

라오스 북부 지역의 두 군데 지역에서만 알려져 있다. 해발 180~400m 석회암 지대의 상록수 숲에서 서식한다.

각주

  1. Bates, P. & Francis, C. 2008, Hipposideros khaokhouayensis, IUCN Red List of Threatened Species , Version 2017.1, IUCN , 2017.
  2. Charles M.Francis, A Guide to the Mammals of Southeast Asia , Princeton University Press, 2008, ISBN 9780691135519.
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