Aldabra flying fox | |
---|---|
![]() | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Chiroptera |
Family: | Pteropodidae |
Genus: | Pteropus |
Species: | P. aldabrensis |
Binomial name | |
Pteropus aldabrensis True, 1893 | |
![]() | |
Aldabra Flying Fox range | |
Synonyms | |
Pteropus seychellensis ssp. aldabrensis True, 1893 |
The Aldabra flying fox (Pteropus aldabrensis) is a species of megabat in the genus Pteropus . It is endemic to the Aldabra Atoll in the Seychelles, like Chaerephon pusilla, [2] though the latter may be the same species as the little free-tailed bat. [3]
The bat was given its scientific name in an 1893 publication by Frederick W. True, an American biologist and curator at the United States National Museum (now part of the Smithsonian Institution). True based his description of the species on two specimens collected in 1892 by William Louis Abbott, an American doctor and naturalist. [4]
Like other megabats, commonly known as fruit bats, the Aldabra flying fox is herbivorous. It has been observed eating fruit from the evergreens Calophyllum inophyllum and Mystroxylon aethiopicum, the Indian almond, and fig trees such as the giant-leaved fig, Ficus rubra, and Ficus reflexa. The bat also eats flowers from the coconut tree and sisal plant and the leaves of the grey mangrove tree. It has been observed licking honeydew produced by scale insects infesting fig trees; rats exhibit the same behavior. [2]
The natural habitats of the Aldabra flying fox are subtropical or tropical mangrove forests and subtropical or tropical dry shrubland.
The species is classified as vulnerable by the IUCN due to a restricted habitat, threats from natural disasters such as tropical cyclones, and rising sea level due to climate change. [5] The biologist A.M. Hutson has described the Aldabra flying fox as "one of the rarest bats in the world" based on a 1968 estimate of a 250-bat total population. [2]
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.
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).
The small Mauritian flying fox or dark flying fox, known as a rougette to early French travelers, is an extinct species of megabat. It lived on the islands of Réunion and Mauritius in the Mascarene Islands of the Indian Ocean. It was abundant, with up to 400 sometimes crowding together at a single roost in a cave or in an ancient, hollow tree, while most other fruit bats prefer to roost in the branches of large trees. Local people believed there was only one male per roost, which may indicate the sexes roosted separately and the large roosts were maternity colonies. This flying fox was nocturnal and had delicate teeth, so it probably fed on nectar and possibly soft fruit.
The Mariana fruit bat, also known as the Mariana flying fox, and the fanihi in Chamorro, is a megabat found only in the Mariana Islands and Ulithi. Habitat loss has driven it to endangered status, and it is listed as threatened by the US Fish and Wildlife Service. Poachers and food hunters, other animals, and natural causes have led to the decline.
The spectacled flying fox, also known as the spectacled fruit bat, is a megabat that lives in Australia's north-eastern regions of Queensland. It is also found in New Guinea and on the offshore islands including Woodlark Island, Alcester Island, Kiriwina, and Halmahera.
The Mauritian flying fox, also known as Greater Mascarene flying fox or Mauritius fruit bat is a large megabat species endemic to Mauritius and La Réunion.
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.
The Seychelles fruit bat or Seychelles flying fox is a megabat found on the granitic islands of Seychelles, and on the Comoros and Mafia Island. It is a significant component of the ecosystems for the islands, dispersing the seeds of many tree species. Although it is hunted for meat on some islands, it remains abundant. It is particularly common on Silhouette Island.
The Nigerian free-tailed bat is a species of bat in the family Molossidae. It is native to two widely separated parts of Africa, and is sometimes considered to represent two separate species.
The Angolan fruit bat, Angolan rousette or Silky bat is a species of megabat in the family Pteropodidae. It is found in Angola, Burundi, Cameroon, Central African Republic, Republic of Congo, Democratic Republic of Congo, Kenya, Nigeria, Rwanda, Sudan, Tanzania, Uganda, and Zambia. Its natural habitats are subtropical or tropical moist lowland forest, moist savanna, and rocky areas.
Veldkamp's dwarf epauletted fruit bat is a species of bat in the family Pteropodidae. It is the only species within the genus Nanonycteris. It is found in Benin, Cameroon, Central African Republic, Ivory Coast, Ghana, Guinea, Liberia, Nigeria, Sierra Leone, and Togo. Its natural habitats are subtropical or tropical moist, mangrove and montane forests, and savanna.
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.
Lyle's flying fox is a species of flying fox in the family Pteropodidae. It is found in Cambodia, Thailand and Vietnam, with an outlying population in Yunnan, China. It faces persecution from farmers and it is killed for bushmeat in parts of its range. The International Union for Conservation of Nature has rated its conservation status as being "vulnerable".
The black-eared flying fox, species Pteropus melanotus, is a bat of the family Pteropodidae (megabats). Also known as Blyth's flying fox, it is found on the Andaman Islands and Nicobar Islands (India), and in Sumatra (Indonesia). A population on Christmas Island, which is critically endangered, has been placed as a subspecies of this population. The conservation and taxonomic status of that population was later re-established as a distinct species, the Christmas Island fruit-bat Pteropus natalis.
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 Maluku 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.
The Madagascan flying fox, Madagascar flying-fox, or Madagascar fruit bat is a species of megabat in the genus Pteropus. It is endemic to Madagascar. Its natural habitats are diverse, and include moist lowland forests, dry forests, succulent woodlands, and spiny thickets, and mangroves. It eats figs and other fruits, flowers, and leaves. It is threatened by habitat loss.
The large flying fox, also known as the greater flying fox, Malayan flying fox, Malaysian flying fox, large fruit bat, kalang, or kalong, is a southeast Asian species of megabat in the family Pteropodidae. Despite its scientific name, it feeds exclusively on fruits, nectar, and flowers, like the other flying foxes of the genus Pteropus. It is noted for being one of the largest bats. As with nearly all other Old World fruit bats, it lacks the ability to echolocate but compensates for it with well-developed eyesight.
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.