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Pteropus Natalis
The Christmas Island flying fox or Christmas Island fruit bat, as the name suggests, is a flying fox endemic to Christmas Island. It is unclear if it should be considered a distinct species (''Pteropus natalis''), or a subspecies of the black-eared flying fox (''P. melanotus natalis''). It may descend from a population of island flying foxes from Pulau Panjang near Java. The Christmas Island flying fox is medium-sized, averaging . It has black fur all over. It gives birth to one pup (generally during the wet season from December to March), which can fly by five or six months, and reaches sexual maturity by 27 or 28 months, which is one of the slowest maturation times of any bat. Life expectancy is thought to be 6 to 12 years. It forages across the island for fruit and nectar, and, being one of two animals on the island to do so, is likely a keystone species, important in seed dispersal and pollination. Unlike most other bats, it is mainly active in the daytime ( diurnal). Due t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oldfield Thomas
Michael Rogers Oldfield Thomas (21 February 1858 – 16 June 1929) was a British zoologist. Career Thomas worked at the Natural History Museum on mammals, describing about 2,000 new species and subspecies for the first time. He was appointed to the museum secretary's office in 1876, transferring to the zoological department in 1878. In 1891, Thomas married Mary Kane, daughter of Sir Andrew Clark, heiress to a small fortune, which gave him the finances to hire mammal collectors and present their specimens to the museum. He also did field work himself in Western Europe and South America. His wife shared his interest in natural history, and accompanied him on collecting trips. In 1896, when William Henry Flower took control of the department, he hired Richard Lydekker Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English naturalist, geologist and writer of numerous books on natural history. Biography Richard Lydekker was born at Tavistock Square in London. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Trend
Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7.9 billion in 2020. The UN projected population to keep growing, and estimates have put the total population at 8.6 billion by mid-2030, 9.8 billion by mid-2050 and 11.2 billion by 2100. However, some academics outside the UN have increasingly developed human population models that account for additional downward pressures on population growth; in such a scenario population would peak before 2100. World human population has been growing since the end of the Black Death, around the year 1350. A mix of technological advancement that improved agricultural productivity and sanitation and medical advancement that reduced mortality increased population growth. In some geographies, this has slowed through the process called the demographic tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pemba Flying Fox
The Pemba flying fox (''Pteropus voeltzkowi'') is a species of flying fox in the family Pteropodidae. It is endemic to the island of Pemba on the coast of Tanzania. Description The Pemba flying fox has a wingspan of and is one of the largest species of fruit bat. It has a fox-like face, tawny fur, orange underparts and black ears, nose and wings. The adult weight is , and the head and body length is . Distribution and habitat The Pemba flying fox occurs only on Pemba, an island about off the coast of Tanzania. Roosts occur in large trees in both primary and secondary forest, among mangroves, and in traditional graveyards. In the latter the bats are often safe and undisturbed as people seldom visit these places because of taboos. There may be up to 850 bats at a single roost. Biology Colonies of the Pemba flying fox roost during the day in large trees, emerging at dusk to forage for fruit such as figs, mangoes and breadfruit. They also eat leaves, flowers, pollen and nectar. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comoro Flying Fox
Livingstone's fruit bat (''Pteropus livingstonii''), also called the Comoro flying fox, is a megabat in the genus ''Pteropus''. It is an Old World fruit bat found only in the Anjouan and Mohéli islands in the Union of the Comoros in the western Indian Ocean. It is the largest and rarest bat of all Comorian species. Its preferred habitat is montane forest above on Mohéli and above on Anjouan, the destruction of which is a major threat to the bat population. As of 2003, the total population was estimated at 1,200 individuals. Other threats to the bats' survival include storms, hunting, and their struggles to readapt to new habitats. The black-bearded flying fox is believed to be one of the closest relatives of Livingstone's fruit bats, but experts differ as to whether or not these species belong to the same species group. No subspecies have been recognized. Physical appearance Livingstone's fruit bats are mostly black in colour, with a scattering of golden or tawny hairs over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryukyu Flying Fox
The Ryukyu flying fox or Ryukyu fruit bat (''Pteropus dasymallus'') 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". Taxonomy and etymology It was described as a new species in 1825 by Dutch zoologist Coenraad Jacob Temminck. Temminck acquired the specimens used for his description from Dutch businessman Jan Cock Blomhoff Its species name "''dasymallus''" is likely ; Temminck described its fur as long and woolly. The five subspecies are: * Daito fruit bat - ''P. d. daitoensis'' * Erabu fruit bat - ''P. d. dasymallus'' * Taiwanese fruit bat - ''P. d. formosus'' * Orii's fruit bat - ''P. d. inopinatus'' * Yaeyama fruit bat - ''P. d. yayeyamae'' The subspecies are based on populations that occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Golden-mantled Flying Fox
The little golden-mantled flying fox (''Pteropus pumilus'') 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. Description The little golden-mantled flying fox is one of the smallest species of fruit bat, weighs about and has a wingspan of about . The fur on its body is golden brown and it often has a paler head and mantle. This bat has claws on its feet and one (its thumbnail) on the end of its wings. Distribution and habitat The little golden-mantled flying fox is native to the Philippines and Miangas (Palmas), the northernmost island in Indonesia. In the Philippines, it is known from Balut, Camiguin, Leyte, Maripipi, Masbate, Mindanao, Mindoro, Negros, Panay, Sibuyan, Siquijor and Tablas. It occurs at altitudes of up to about and is most common on smaller islands. Its habitat is primary forest and well-grown secondary forest. Behaviour The little golden-mantled flying f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samoa Flying Fox
The Samoa flying fox or Samoan flying fox (''Pteropus samoensis'') is a species of flying fox in the family Pteropodidae. It is found in American Samoa, Fiji, and Samoa (where it is known as ''pe'a'' and ''pe'a vao''). Its natural habitat is subtropical or tropical dry forests. Description The Samoan flying fox is a medium-sized bat weighing about with a wingspan of about . It has a fox-like face with a pointed muzzle, a brown body and wings and the fur on its head and shoulders is blond or silvery-grey. Distribution and habitat The Samoan flying fox is native to Fiji, Samoa and American Samoa. Its habitat is primary or secondary moist forest, plantations, agroforest and the vicinity of villages. Unlike most flying foxes, this species roosts alone or in small family groups. Biology This bat is mostly diurnal, making foraging expeditions in early mornings and late afternoons. The diet consists mainly of fruit but leaves, flowers and nectar are also eaten. This bat is believed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grey-headed Flying Fox
The grey-headed flying fox (''Pteropus poliocephalus'') is a megabat native to Australia. The species shares mainland Australia with three other members of the genus ''Pteropus'': the little red ''Pteropus scapulatus, P. scapulatus'', spectacled ''Pteropus conspicillatus, P. conspicillatus'', and the black ''Pteropus alecto, P. alecto''. The grey-headed flying fox is the largest bat in Australia. The grey-headed flying fox is endemic to the south-eastern forested areas of Australia, principally east of the Great Dividing Range. Its range extends approximately from Bundaberg, Queensland, Bundaberg in Queensland to Geelong, Victoria, Geelong in Victoria (Australia), Victoria, with outlying colonies in Ingham, Queensland, Ingham and Finch Hatton, Queensland, Finch Hatton in the north, and in Adelaide, South Australia, Adelaide in the south. In the southern parts of its range it occupies more extreme latitudes than any other ''Pteropus'' species. As of 2021 the species is listed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insular Flying Fox
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. History Archaeologists on an excavation site at Rurutu announced in 2006 some important fossil finds: 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. 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". In flight, their outstretched wings appear a translucent dark brown when viewed from below. Distribution and habitat The insular flying fox has a wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marianas Flying Fox
The Mariana fruit bat (''Pteropus mariannus''), also known as the Mariana flying fox, and the ''fanihi'' in Chamorro, is a megabat found only in the Mariana Islands and Ulithi (an atoll in the Caroline Islands). 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. Description The Mariana fruit bat is a mid-sized bat which weighs , and has a forearm length of 5.3 to 6.1 in (13.4 to 15.6 cm). Males of the species are slightly larger in size than the females. Their abdomens are colored from black to brown, while also having gray hairs. The mantle and the neck are a brighter brown to golden brown color and the head varies from brown to black. Their ears are rounded and their eyes large, giving them the features of a canid, so many megabats are called flying foxes. Threats The bat is considered a culinary delicacy by Chamorros. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectacled Flying Fox
The spectacled flying fox (''Pteropus conspicillatus''), 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 spectacled flying fox was listed as a threatened species under the Environment Protection and Biodiversity Conservation Act 1999. They were considered vulnerable due to a significant decline in numbers as a result of loss of their prime feeding habitat and secluded camp sites. It has also been reported that spectacled flying foxes skim over the surface of water to drink and are sometimes eaten by crocodiles. The species was classified as endangered by the IUCN in 2020. In February 2019 the Australian government upgraded the threatened status from vulnerable to endangered, after almost a third of the bat population died in a severe heatwave in Queensland in late 2018. Descriptio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Flying Fox
The black flying fox or black fruit bat (''Pteropus alecto'') 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. Taxonomy Juvenile specimens of this species from Moa Island in Torres Strait have been described as a separate species, ''Pteropus banakrisi''. This supposed species was known as the "Torresian flying fox" or "Moa Island fruit bat". Description The black flying fox has short, black hair with a contrasting reddish-brown mantle, and a mean forearm length of 164 mm (6.46 in) and a mean weight of 710 g (1.57 lb). It is one of the largest bat species in the world, and has a wingspan of more than 1 m. Distribution Black flying foxes are native to Australia (New South Wales, Queensland, Northern Territory and Western Australia), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
