Peters's dwarf epauletted fruit bat

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Peters's dwarf epauletted fruit bat
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Pteropodidae
Genus: Micropteropus
Species:
M. pusillus
Binomial name
Micropteropus pusillus
(Peters, 1867)
Peter's Dwarf Epauletted Fruit Bat area.png
Peters's dwarf epauletted fruit bat range

Peters's dwarf epauletted fruit bat (Micropteropus pusillus) is a species of megabat in the family Pteropodidae. It is found in Angola, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mali, Niger, Nigeria, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, and Zambia. Its natural habitats are subtropical or tropical moist lowland forests and moist savanna.

Contents

Description

Peters's dwarf epauletted fruit bat is one of the two species contained within the genus Micropteropus . In contrast to the other species in this genus, Micropteropus intermedius , both sexes contain white tuffs at the proximal end of their ears. [2] However, when adults are compared side by side, M. pusillus can be identified as the smaller of the two. M. pusillus display variance between their dorsal and ventral pelage. Fur is often described as thicker and a darker shade of brown on the dorsal surface, but the variance in color can be attributed to a lower concentration of fur along the ventral surface [3]

Secondary sexual dimorphic traits allow for sex determination without analysis of the sex organs. In males, the ornamentation at the base of the ear has the capability to erect itself with the assistance from the arrector pili muscle. [4] On average females are slightly larger than males by approximately of ten percent when comparing body mass. This variation is also present in the many body proportions including wingspan, head length, ear length, and many other anatomical variations. Despite the larger size observed in the females, M. pusillus is still one of the smaller mammals in the Megachiroptera suborder. [5]

Ecology

Environmental

The geographic range of M. pusillus is limited to Africa and has only been observed in all regions of Africa except northern Africa. [6] M. pusillus is a nonmigratory bat as expected by its low aspect ratio wings. As would be anticipated by these wing dimensions, M. pusillus inhabits tropical forests in this region along with woodlands. Life in this tropical region permits M. pusillus to avoid hibernation and forage year-round. [7] This year round foraging is ecologically advantageous for the tropical forests M. pusillus inhabits. Year round activity allows for the plants to be pollinated during all seasons of the year.

Diet

M. pusillus feeds on nectar as well as fruits and insects. The consumption of nectar requires the bat to come into direct contact with the pollen produced by the plants, allowing for pollination of the plants in its tropical environment and a mutual relationship between the plants and the bats. [8] Its pollination is viewed as a positive ecological advantage, but the frugivorous diet has had negative agricultural impact on farms in the surrounding areas of their inhabitance. [9] Like nearly all the other bats within the suborder Megachiroptera, M. pusillus does not rely on echolocation to hunt down insects. it was originally hypothesized that M. pusillus primarily fed on nectar and fruits, but there is now images of M. pusillus feeding on moths. [10]

Physiology

Reproduction

M. pusillus females are sexually receptive year round, however, mating and lactation have been most frequently been observed during the periods when fruit is most accessible. This is during the two rainy seasons during the year. The rainy season during the spring is from March to May and in the fall from September to November. [11] [12] The selection of this time frame for gestation and lactation allows the female the best opportunity for satisfying her nutritional needs during a time of increased metabolic rate. Morphological differences in the males allow them to emit high pitched sounds to attract a mate. [13]

Viruses

Bats are transporters of many viruses that do not affect them due to their unusually high immune system efficiency. M. pusillus have been known to carry antibodies specific to Ebola. [14] Mitochondrial analysis was conducted on multiple fruit bats following the Ebola viruses outbreak in 2014 and one of the bat species testing positive for the virus was M. pusillus. [15] With M. pusillus being highly frugivorous, human contact in greatly increased in agricultural regions of Africa, increasing the risk for virus transmission.

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">Egyptian fruit bat</span> Species of bat

The Egyptian fruit bat or Egyptian rousette is a species of megabat that is found in Africa, the Middle East, the Mediterranean, and the Indian subcontinent. It is one of three Rousettus species with an African-Malagasy range, though the only species of its genus found on continental Africa. The common ancestor of the three species colonized the region in the late Pliocene or early Pleistocene. The species is traditionally divided into six subspecies. It is considered a medium-sized megabat, with adults weighing 80–170 g (2.8–6.0 oz) and possessing wingspans of approximately 60 cm (24 in). Individuals are dark brown or grayish brown, with their undersides paler than their backs.

<span class="mw-page-title-main">Long-tongued nectar bat</span> Species of bat

The long-tongued nectar bat, also known as the northern blossom bat, honey nectar bat, least blossom-bat, dagger-toothed long-nosed fruit bat, and lesser long-tongued fruit bat, is a species of megabat. M. minimus is one of the smallest species in the family Pteropodidae, with an average length of 60–85 mm. It has a reddish-brown colouring with relatively long hair compared to the other species. The hair on the abdomen is a lighter colour, and a dark brown stripe runs bilaterally down the top of the head and back.

<span class="mw-page-title-main">Eastern tube-nosed bat</span> Species of bat

The eastern or Queensland tube-nosed bat is a megabat in the family Pteropodidae that lives in north-eastern Australia. N. robinsoni is one of the few species of megabat that roosts solitarily. They get their common name from their raised tubular nostrils which are unlike those of most other species in the family. They are a deep brown with gray heads and sparse yellow spotting.

<span class="mw-page-title-main">Hammer-headed bat</span> Megabat widely distributed in West and Central Africa

The hammer-headed bat, also known as hammer-headed fruit bat, big-lipped bat, and hammerhead bat, is a megabat widely distributed in West and Central Africa. It is the only member of the genus Hypsignathus, which is part of the tribe Epomophorini along with four other genera. It is the largest bat in continental Africa, with wingspans approaching 1 m (3.3 ft), and males almost twice as heavy as females. Males and females also greatly differ in appearance, making it the most sexually dimorphic bat species in the world. These differences include several adaptations that help males produce and amplify vocalizations: the males' larynges are about three times as large as those of females, and they have large resonating chambers on their faces. Females appear more like a typical megabat, with foxlike faces.

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

The short-palated fruit bat is a species of frugivorous megabat in the family Pteropodidae. It is found in Cameroon, Central African Republic, and Democratic Republic of the Congo. Its natural habitat is subtropical or tropical moist lowland forests. Births occur in May.

<span class="mw-page-title-main">Wahlberg's epauletted fruit bat</span> Species of bat

Wahlberg's epauletted fruit bat is a species of megabat in the family Pteropodidae. It is commonly found across southern Africa.

<span class="mw-page-title-main">Buettikofer's epauletted fruit bat</span> Species of mammal

Buettikofer's epauletted fruit bat is a species of megabat in the family Pteropodidae. It is found in Ivory Coast, Ghana, Guinea, Guinea-Bissau, Liberia, Nigeria, Senegal, and Sierra Leone. Its natural habitats are subtropical or tropical moist lowland forest and savanna.

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

The black-bellied fruit bat is a species of order bat in the family Pteropodidae.

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

The little collared fruit bat is a species of megabat in the family Pteropodidae found in Angola, Cameroon, the Central African Republic, the Republic of the Congo, the Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Liberia, Nigeria, Rwanda, Sierra Leone, South Sudan, Togo, and Uganda. Its natural habitats are subtropical or tropical moist lowland forests and moist savanna.

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

The demonic tube-nosed fruit bat is a species of bat in the family Pteropodidae. It is endemic to Papua New Guinea. The holotype specimen was collected in 1979 on New Ireland, in the Bismarck Archipelago. It was described as a new species in 1983. The range of the species may extend to other islands, however the extent of the range is not presently known.

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

The Luzon fruit bat is a species of megabat in the family Pteropodidae. It is the only species within the genus Otopteropus and is endemic to the Philippines. Its natural habitat is subtropical or tropical dry forest.

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

The Indian flying fox, also known as the greater Indian fruit bat, is a species of flying fox native to the Indian subcontinent. It is one of the largest bats in the world. It is of interest as a disease vector, as it is capable of transmitting several viruses to humans. It is nocturnal and feeds mainly on ripe fruits, such as mangoes and bananas, and nectar. This species is often regarded as vermin due to its destructive tendencies towards fruit farms, but the benefits of its pollination and seed propagation often outweigh the impacts of its fruit consumption.

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

The Pemba flying fox is a species of flying fox in the family Pteropodidae. It is endemic to the island of Pemba on the coast of Tanzania.

<span class="mw-page-title-main">Madagascan rousette</span> Species of bat

The Madagascan rousette or Madagascar rousette, is a species of megabat in the family Pteropodidae endemic to Madagascar. Its natural habitat is subtropical or tropical dry forests.

Syconycteris is a genus of megabat in the family Pteropodidae. There are three described species at present, with more likely to be added. Members of this genus are found in Indonesia, New Guinea and Australia. Their diet mainly consists of nectar and fruit, making them important for pollination and seed dispersal in their environment.

<i>Nyctimene</i> (genus) Genus of bats

Nyctimene is a genus of bats in the Pteropodidae family. Commonly known as tube-nosed fruit bats, they are found in the central Philippines, eastern Indonesia, Papua New Guinea and the north-east coast of Australia.

<span class="mw-page-title-main">Bat</span> Order of flying mammals

Bats are flying mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is 29–34 millimetres in length, 150 mm (6 in) across the wings and 2–2.6 g in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox reaching a weight of 1.6 kg and having a wingspan of 1.7 m.

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

The Rousettinae are a subfamily of megabats. Taxa within this subfamily include:

References

  1. Bakwo Fils, E.M.; Kaleme, P. (2020) [amended version of 2016 assessment]. "Micropteropus pusillus". IUCN Red List of Threatened Species . 2020: e.T13402A166518027. doi: 10.2305/IUCN.UK.2020-1.RLTS.T13402A166518027.en . Retrieved 19 July 2020.
  2. Owen-Ashley, Noah. "Micropteropus pusillus". American Society of Mammalogists, 1998, p.1.
  3. Nowak. "Walker's Mammals of the World". The Johns Hopkins University Press, 1999
  4. Nowak. "Walker's Mammals of the World". The Johns Hopkins University Press, 1999
  5. Owen-Ashley, Noah. "Micropteropus pusillus". American Society of Mammalogists, 1998, p.1.
  6. Patterson, Bruce D.; Webala, Paul W. (29 November 2012). "Keys to the Bats (Mammalia: Chiroptera) of East Africa". Fieldiana Life and Earth Sciences. 6: 1–60. doi:10.3158/2158-5520-12.6.1. S2CID   128835631.
  7. Henry, Mickael; Barrière, Patrick; Gautier-Hion, Annie; Colyn, Marc (5 January 2004). "Species composition, abundance and vertical stratification of a bat community (Megachiroptera: Pteropodidae) in a West African rain forest". Journal of Tropical Ecology. 20 (1): 21–29. doi:10.1017/s0266467404006145. S2CID   84418997.
  8. Owen-Ashley, Noah. "Micropteropus pusillus". American Society of Mammalogists, 1998, p.1.
  9. Owen-Ashley, Noah. "Micropteropus pusillus". American Society of Mammalogists, 1998, p.1.
  10. Courts, S. E. (December 1998). "Dietary strategies of Old World Fruit Bats (Megachiroptera, Pteropodidae): how do they obtain sufficient protein?". Mammal Review. 28 (4): 185–194. doi: 10.1046/j.1365-2907.1998.00033.x .
  11. Owen-Ashley, Noah. "Micropteropus pusillus". American Society of Mammalogists, 1998, p.1.
  12. Patterson, Bruce D.; Webala, Paul W. (29 November 2012). "Keys to the Bats (Mammalia: Chiroptera) of East Africa". Fieldiana Life and Earth Sciences. 6: 1–60. doi:10.3158/2158-5520-12.6.1. S2CID   128835631.
  13. Owen-Ashley, Noah. "Micropteropus pusillus". American Society of Mammalogists, 1998, p.1.
  14. Pourrut, Xavier. "Large serological survey showing cocirculation of Ebola and Marburg viruses in Gabonese bat populations, and a high seroprevalence of both viruses in Rousettus aegyptiacus". BMC Infectious Diseases, 2009, p. 1-8.
  15. Hassanin, Alexandre. "Comparative phylogeography of African fruit bats (Chiroptera, Pteropodidae) provide new insights into the outbreak of Ebola virus disease in West Africa, 2014–2016". R. Biologies, 2016 p.1-11.