Insular flying fox

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Insular flying fox
Pteropus tonganus1.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Pteropodidae
Genus: Pteropus
Species:
P. tonganus
Binomial name
Pteropus tonganus
Quoy & Gaimard, 1830
Insular Flying Fox area.png
Insular flying fox range

The insular flying fox or Pacific flying fox (Pteropus tonganus) is a species of flying fox in the family Pteropodidae. It is geographically widespread, the most widespread flying fox in the Pacific: it is found in American Samoa, the Cook Islands, Fiji, New Caledonia, Niue, Papua New Guinea, Samoa (where it is called pe'a fanua, pe'a fai and taulaga), the Solomon Islands, Tonga, and Vanuatu. [1]

Contents

History

Archaeologists on an excavation site at Rurutu announced in 2006 some important fossil finds:

Five bones, representing one adult of the Pacific Flying Fox, Pteropus tonganus, were recovered from an archaeological site on Rurutu (151[degrees] 210 W, 22[degrees] 270'S), Austral Islands, French Polynesia, making this the most eastern extension of the species. For the first time, flying fox bones from cultural deposits were directly dated by accelerator mass spectrometry, yielding an age of death between A.D. 1064 and 1155. Their stratigraphic position in an Archaic period archaeological site and the absence of bones in the late prehistoric to historic layers point to extirpation of the species. No flying fox bones were found in prehuman deposits and human transport of the species cannot be ruled out. [2]

Description

The range of coloration in this bat species varies somewhat. Its back is described as black or seal brown; its mantle has been called orange, yellow, cream buff, and tawny. [3] This bat lacks an interfemoral membrane; its forearms and tibia are bare, and the fur of the males is described as "stiff, short, oily hairs". [3]

In flight, their outstretched wings appear a translucent dark brown when viewed from below. [4]

Distribution and habitat

The insular flying fox has a widespread distribution in Polynesia. Its range includes Papua New Guinea, the Solomon Islands, Samoa, Tonga, the Cook Islands, Tuvalu, Tokelau, Niue, Vanuatu, New Caledonia, Fiji, Wallis and Futuna. It sometimes migrates between islands and its typical habitat is tropical wet forests, mangrove forests and plantations. [5]

Behavior

Like most species of bat, this flying fox is nocturnal and roosts in colonies high in the canopy. These bats favor lowland native forests, cliffs, islets, and swampy areas. The females give birth to a single offspring each year although occasionally twins are born. [5]

Insular flying foxes are frugivores and eat pollen and nectar. They are important pollinators of Ceiba pentandra and perhaps other species. [3]

Status

The IUCN rates the insular flying fox as being of "Least Concern" because it has a wide range and presumed large population. It is hunted for food on some islands and it is also threatened by degradation of native forest for logging and for conversion to plantations and cultivated land. Populations appear to be declining but not at such a rate as to warrant placing the bat in a more threatened category. [5]

Associated viruses

Bats are well known as natural hosts and possibly reservoirs of a large diversity of both RNA and DNA viruses, of which some are responsible for emerging infections and disease outbreaks. Faecal matter from four roosting sites of insular flying foxes in Tonga was sampled for viruses during 2014–2015. Analysis of the recovered DNA sequences revealed 48 single-stranded DNA viruses, including 5 cyclovirus and 14 gemycircularvirus novel species. Three of the viruses were sampled in consecutive years and six were found at multiple sites indicating that they are persistently associated with insular flying fox colonies. [6]

Related Research Articles

Megabat Family of relatively large flying mammals (fruit bats)

Megabats constitute the family Pteropodidae of the order Chiroptera (bats). They are also called fruit bats, Old World fruit bats, or—especially the genera Acerodon and Pteropus—flying foxes. They are the only member of the superfamily Pteropodoidea, which is one of two superfamilies in the suborder Yinpterochiroptera. Internal divisions of Pteropodidae have varied since subfamilies were first proposed in 1917. From three subfamilies in the 1917 classification, six are now recognized, along with various tribes. As of 2018, 197 species of megabat had been described.

<i>Pteropus</i> Genus of large bats

Pteropus is a genus of megabats which are among the largest bats in the world. They are commonly known as fruit bats or flying foxes, among other colloquial names. They live in the South Asia, Southeast Asia, Australia, East Africa, and some oceanic islands in the Indian and Pacific Oceans. There are at least 60 extant species in the genus.

Black flying fox Species of mammal

The black flying fox or black fruit bat is a bat in the family Pteropodidae. It is among the largest bats in the world, but is considerably smaller than the largest species in its genus, Pteropus. The black flying fox is native to Australia, Papua New Guinea, and Indonesia. It is not a threatened species.

Vanuatu flying fox Species of bat

The Vanuatu flying fox or white flying fox is a species of flying fox in the family Pteropodidae. It is endemic to Vanuatu. It is most closely related to the Samoa flying fox.

Banks flying fox Species of bat

The Banks flying fox is a species of megabat in the family Pteropodidae. It is endemic to Vanuatu. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical swamps. These small fruit bats are about 15 cm. long with grey and brown on its head and back with a yellow-orange neck and yellow-gray bellies. Its diet consists of coconut flowers and Vaveli trees fruit since its home is tropical.

White-winged flying fox Species of bat

The white-winged flying fox, also known as the mottle-winged flying fox is a species of bat in the family Pteropodidae. They are endemic to the Philippines. Their natural habitat is subtropical or tropical dry forests. They are threatened by habitat loss. In 2008, Giannini et al. revived the genus Desmalopex and placed D. leucopterus in it.

Temotu flying fox Species of bat

The Temotu flying fox is a species of flying fox in the family Pteropodidae. It is endemic to the Solomon Islands. It is threatened by habitat destruction due to subsistence agricultural practices, as well as natural disasters such as tropical cyclones. Due to its imperiled status, it is identified by the Alliance for Zero Extinction as a species in danger of imminent extinction. In 2013, Bat Conservation International listed this species as one of the 35 species of its worldwide priority list of conservation.

Ceram fruit bat Species of bat

The Ceram fruit bat or Seram flying fox is a species of megabat in the family Pteropodidae. It is endemic to the mountainous forests of two Indonesian islands, Buru and Seram, including the Manusela National Park on Seram. They were once present on the nearby Ambon Island, but probably not anymore. The habitat has an area of less than 20,000 km2, and is decreasing due to logging. For this reason, and because of hunting by the local population, these species are listed as vulnerable by the IUCN since 1996.

<i>Pteropus pelagicus</i> Species of bat

Pteropus pelagicus is a species of fruit bat in the family Pteropodidae. It includes two subspecies that were formerly recognized as full species— Pteropus insularis and Pteropus phaeocephalus. It is endemic to Micronesia. It is threatened by habitat loss.

Samoa flying fox Species of bat

The Samoa flying fox or Samoan flying fox is a species of flying fox in the family Pteropodidae. It is found in American Samoa, Fiji, and Samoa. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.

Vanikoro flying fox Species of bat

The Vanikoro flying fox, also known locally as basapine, is a species of bat in the family Pteropodidae. It has only been found in the Vanikoro island group located in the southern Solomon Islands. The species as a whole was originally known from just a few specimens collected sometime before 1930 but following surveys conducted on the island in the early 1990s did not detect this species again causing the Vanikoro flying fox to be listed as extinct. However, the species was rediscovered by a survey conducted in late 2014 which indicated a population in the high hundreds or low thousands and reported all observations.

Dwarf flying fox Species of bat

The dwarf flying fox, least flying fox, or least fruit bat is a species of flying fox in the family Pteropodidae. It is endemic to the Solomon Islands. It is threatened by deforestation, which is believed to damage roosting sites in old growth forests.

Rennell flying fox Species of bat

The Rennell flying fox is a species of flying fox found in the Solomon Islands. It is an endangered species risking extinction.

Big-eared flying fox Species of bat

The big-eared flying fox is a species of bat in the family Pteropodidae, larger bats who subsist largely on fruits. The species is distributed across a range in Indonesia, Papua New Guinea and islands nearing the Cape York peninsula at the northeast of Australia, at elevations less than 500 metres and often in coastal mangroves.

The large Samoan flying fox is a species of fruit-eating megabat whose type specimen was originally collected in Samoa in 1856, but was not identified as a new species until 2009. The only known specimen was collected by an American expedition to Samoa in 1838–1842. It was rediscovered by Smithsonian mammalogist Kristofer Helgen preserved in alcohol. It was the largest known bat from Polynesia. As the type specimen is dead, and no other examples of the species are known, it is believed to be extinct.

References

  1. 1 2 Lavery, T.H.; Scanlon, A.; Helgen, K.; Hamilton, S. (2020). "Pteropus tonganus". IUCN Red List of Threatened Species . 2020: e.T18764A22088495. doi: 10.2305/IUCN.UK.2020-2.RLTS.T18764A22088495.en . Retrieved 18 November 2021.
  2. Bollt, Robert; Findlater, Amy; Weisler, Marshall I. (July 2006). "A New Eastern Limit of the Pacific Flying Fox, Pteropus tonganus (Chiroptera: Pteropodidae), in Prehistoric Polynesia: a Case of Possible Human Transport and Extirpation" (PDF). Pacific Science . 60 (3): 403. doi:10.1353/psc.2006.0020. hdl: 10125/22575 .
  3. 1 2 3 Miller, Carrie A.; Wilson, Don E. (9 May 1997). "Pteropus tonganus" (PDF). Mammalian Species . American Society of Mammalogists (552): 1. Archived from the original (PDF) on 4 March 2016. Retrieved January 12, 2013.
  4. Ryan, Paddy. "Pteropus tonganus - Tongan fruit bat or flying fox". Thornton, Colorado: Ryan Photographic. Retrieved January 12, 2013.
  5. 1 2 3 Lavery, T.H.; Scanlon, A.; Helgen, K.; Hamilton, S. (2020). "Pteropus tonganus". IUCN Red List of Threatened Species . 2020: e.T18764A22088495. doi: 10.2305/IUCN.UK.2020-2.RLTS.T18764A22088495.en . Retrieved 30 July 2020.
  6. Male, Maketalena F.; Kraberger, Simona; Stainton, Daisy; Kami, Viliami; Varsani, Arvind (April 2016). "Cycloviruses, gemycircularviruses and other novel replication-associated protein encoding circular viruses in Pacific flying fox (Pteropus tonganus) faeces". Infection, Genetics and Evolution. 39: 279–292. doi:10.1016/j.meegid.2016.02.009. PMID   26873064.