Mindoro stripe-faced fruit bat

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Mindoro stripe-faced fruit bat [1]
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Pteropodidae
Genus: Styloctenium
Species:
S. mindorensis
Binomial name
Styloctenium mindorensis
Esselstyn, 2007
Distribution Styloctenium.png
Styloctenium range map. The entire island of Mindoro is highlighted in red, the type locality of S. mindorensis in dark red.

The Mindoro stripe-faced fruit bat (Styloctenium mindorensis), nicknamed the "flying fox" for its foxlike face (although it is not a flying fox bat), is a species of large megabat that is endemic to the island of Mindoro. [2] The Mindoro stripe-faced fruit bat ranked sixth in the top ten species of 2008, selected by the International Institute for Species Exploration. [3]

Contents

Aboriginal rock art dating back some 20,000 years, from near Kalumburu in the Kimberley region of Western Australia, depicts several bats similar to Styloctenium mindorensis hanging from a branch or vine. The paintings belong to a category of sophisticated rock art known as Bradshaws. The facial markings on the paintings are particularly clear and have led researchers to conclude that the subjects were either S. mindorensis or a closely related species. [4]

Description

S. mindorensis is a typical fruit bat, possessing modified forearms for flight, short-clawed hind legs and large ears. The bat shares many anatomical features with the rest of its genus, which was originally described from just one species. These include an overall orange pelage, a white stripe down the middle of the bat's rostrum and white spots above its eyes. S. mindorensis can be distinguished from the other member of its genus by its possession of multicusped lower and upper canine teeth. [1]

Taxonomy

Because of its distinct morphological features, it was placed in the genus Styloctenium . Prior to this, the genus was only described from one species, the Indonesian Styloctenium wallacei. [5] The second species in the genus to be discovered, it was formally described by Jacob Esselstyn in the August 2007 issue of the Journal of Mammalogy. Esselstyn first heard rumours of the bat's existence from locals in barangay Batong Buhay in the municipality of Sablayan in the province of Occidental Mindoro. The researchers remained skeptical of the species' existence until a live specimen was unexpectedly found in February 2006. The bat was unintentionally caught in one of their nets used for surveying the local fauna. S. mindorensis is the 74th chiropteran species to be found in the Philippines and the country's 26th endemic one. [1] [6] [7]

Conservation

While no population studies have been done so far on the species, it has been suggested that it may be threatened by hunting and habitat loss due to the general deforestation of forests on Mindoro. Along with other large pteropodids on the island, the bat is hunted by the locals for food. The describer went so far as to state that because of these threats, the species may be at risk of extinction. [1] It is assessed as endangered by the International Union for Conservation of Nature (IUCN). [2]

Related Research Articles

<span class="mw-page-title-main">Megabat</span> Family of 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.

<span class="mw-page-title-main">Vespertilionidae</span> Family of microbats

Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat families, specialised in many forms to occupy a range of habitats and ecological circumstances, and it is frequently observed or the subject of research. The facial features of the species are often simple, as they mainly rely on vocally emitted echolocation. The tails of the species are enclosed by the lower flight membranes between the legs. Over 300 species are distributed all over the world, on every continent except Antarctica. It owes its name to the genus Vespertilio, which takes its name from a word for bat, vespertilio, derived from the Latin term vesper meaning 'evening'; they are termed "evening bats" and were once referred to as "evening birds".

<span class="mw-page-title-main">Tamaraw</span> Species of buffalo

The tamaraw or Mindoro dwarf buffalo is a small hoofed mammal belonging to the family Bovidae. It is endemic to the island of Mindoro in the Philippines, and is the only endemic Philippine bovine. It is believed, however, to have once also thrived on the larger island of Luzon. The tamaraw was originally found all over Mindoro, from sea level up to the mountains, but because of human habitation, hunting, and logging, it is now restricted to only a few remote grassy plains and is now a critically endangered species.

<span class="mw-page-title-main">Giant golden-crowned flying fox</span> Large bat species

The giant golden-crowned flying fox, also known as the golden-capped fruit bat, is a species of megabat endemic to the Philippines. Since its description in 1831, three subspecies of the giant golden-crowned flying fox have been recognized, one of which is extinct. The extinct subspecies was formerly recognized as a full species, the Panay golden-crowned flying fox. Formerly, this species was placed in the genus Pteropus; while it is no longer within the genus, it has many physical similarities to Pteropus megabats. It is one of the largest bat species in the world, weighing up to 1.4 kg (3.1 lb)—only the Indian and great flying fox can weigh more. It has the longest documented forearm length of any bat species at 21 cm (8.3 in).

<i>Chrotomys</i> Genus of rodents

The genus Chrotomys contain a unique group of rodents found only in the Philippines, specifically the islands of Luzon, Mindoro, and Sibuyan. Instead of being predominantly herbivorous or omnivorous like other murines, these rats feed predominantly on invertebrates although they do eat some vegetable matter. This vermivory is probably the result of a rat-like animal moving into an ecological niche usually filled by shrews. Shrews and other insectivores are absent on these Philippine islands.

<span class="mw-page-title-main">Mindoro climbing rat</span> Species of rodent

The Mindoro climbing rat or Mindoro rat is a species of rodent in the family Muridae. It is found only in the Philippines, and is known only from Ilong Peak in the Halcon Mountains. It is the only species in the genus Anonymomys. Its natural habitat is subtropical or tropical dry forest. It is threatened by habitat loss.

<span class="mw-page-title-main">Mindoro imperial pigeon</span> Species of bird

The Mindoro imperial pigeon, also known as Mindoro Zone-tailed pigeon, Great Mindoro pigeon or Pink-throated Imperial pigeon, is a bird species in the family Columbidae. It is endemic to the mountains of Mindoro in central Philippines and is the largest pigeon in the country reaching 50cm in length.

<span class="mw-page-title-main">Harpy fruit bat</span> Species of bat

The harpy fruit bat is a species of megabat in the family Pteropodidae. It is endemic to the Philippines.

<span class="mw-page-title-main">Ryukyu flying fox</span> Species of bat

The Ryukyu flying fox or Ryukyu fruit bat is a species of megabat in the family Pteropodidae. It is found in Japan, Taiwan, and the Batanes and Babuyan Islands of the Philippines. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical swamps. It is threatened by habitat loss and by hunting for food and the IUCN classify it as "Vulnerable".

<span class="mw-page-title-main">Little golden-mantled flying fox</span> Species of bat

The little golden-mantled flying fox is a species of bat in the family Pteropodidae. It is found in Indonesia and the Philippines. Its natural habitat is subtropical or tropical dry forests.

<span class="mw-page-title-main">Sulawesi stripe-faced fruit bat</span> Species of bat

The Wallace's or Sulawesi stripe-faced fruit bat is a species of megabat in the family Pteropodidae. It is endemic to Sulawesi and the nearby Togian Islands of Indonesia. Cave paintings resembling these bats have been found in Australia, where bats of this kind are not otherwise known.

<i>Styloctenium</i> Genus of bats

Styloctenium is a genus of stripe-faced fruit bat in the Pteropodidae (megabat) family. It comprises the following species:

<span class="mw-page-title-main">Bougainville monkey-faced bat</span> Species of mammal

The Bougainville monkey-faced bat or Bougainville flying monkey is a megabat endemic to Bougainville Island of Papua New Guinea and Choiseul Island of the Solomon Islands in Melanesia. It inhabits mature forests in upland areas, within the Autonomous Region of Bougainville and Bougouriba Province.

<span class="mw-page-title-main">Pteropodinae</span> Subfamily of bats

The Pteropodinae are a subfamily of megabats. Taxa within this subfamily are:

<i>Desmalopex</i> Genus of bats

Desmalopex is a genus of megabats in the family Pteropodidae. It has historically been included in the genus Pteropus and occurs only in the Philippines.

<span class="mw-page-title-main">Small white-winged flying fox</span> Species of bat

The small white-winged flying fox is a species of megabat in the family Pteropodidae. It is known from Mindoro Island, in the Philippines. Only 13 specimens have ever been found; one in 1998 and the others in 2006.

The Mindoro boobook or Mindoro hawk-owl is a species of owl in the family Strigidae that is endemic to the Philippines.

The Mindoro racket-tail is a species of parrot in the Psittaculinae family. It was formerly considered conspecific with the blue-crowned racket-tail. It is endemic to the island of Mindoro in the Philippines and it occurs in tropical moist lowland forest. It is threatened by habitat loss and trapping for the cage-bird trade.

References

  1. 1 2 3 4 Esselstyn, Jacob A. (2007). "A new species of stripe-faced fruit bat (Chiroptera: Pteropodidae: Styloctenium) from the Philippines". Journal of Mammalogy. 88 (4): 951–958. doi: 10.1644/06-MAMM-A-294R.1 .
  2. 1 2 3 Cielo, K.L.S.; Garcia, J.J.L.; Tabaranza, D.G.E.; Waldien, D.L. (2019). "Styloctenium mindorensis". IUCN Red List of Threatened Species . 2019: e.T136534A21979633. doi: 10.2305/IUCN.UK.2019-3.RLTS.T136534A21979633.en . Retrieved 19 November 2021.
  3. Top 10 – 2008. Number 6 – Fruit Bat Crosses the Line. species.asu.edu
  4. Rincon, Paul. (2008-12-04) item. BBC News. Retrieved on 2012-12-29.
  5. "Styloctenium". Integrated Taxonomic Information System . Retrieved 20 September 2007.
  6. "Philippines finds new breed of flying fox". Reuters. 2007-09-16. Retrieved 2007-09-20.
  7. "New bat species discovered in Philippines". AFP. 2007-09-16. Archived from the original on 2008-12-06. Retrieved 2007-09-20.