Big-eared woolly bat

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Big-eared woolly bat
Chrotopterus auritus at Sachavacyoc.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Phyllostomidae
Genus: Chrotopterus
Peters, 1865
Species:
C. auritus
Binomial name
Chrotopterus auritus
Peters, 1865
Chrotopterus auritus map.png
Big-eared woolly bat range

The big-eared woolly bat or (Peters's) woolly false vampire bat (Chrotopterus auritus) is a species of bat, belonging to the family Phyllostomidae.

Contents

The name Chrotopterus is derived from Greek roots chariots (skin, color), and pteron (wing). The epithet auritus refers to the large ears. [2]

Description

Big-eared woolly bats are very large predatory bats, the second largest bat species in the neotropics. Their body mass typically ranges from 75 to 96 grams (2.6 to 3.4 oz). The length of the forearm ranges from 79 to 83 millimetres (3.1 to 3.3 in). There are only three New World phyllostomid bats of comparable size. [2] The dorsal hair is about 12 millimetres (0.47 in) long, which is longer than that most of phyllostomid species. They also possess two lower incisors, a trait typically shared with smaller bats.

Ecology

Habitat

Big woolly-eared bats live in warm subtropical forests, usually roosting in caves and hollow logs, where prey is returned to before consumption. Geographically, they are found in southern parts of Mexico and extend through Northeastern South America, being found as far south as Bolivia. [2] They are typically found in areas that also host many other species of bat. [2]

Diet

Big-eared woolly bats have diverse feeding habits. It has been shown to feed primarily on small arthropods and small vertebrates, including fruits, beetles, moths, small mammals (including opossums and rodents), birds (including passerine birds) and even other bat species. Though primarily carnivorous or insectivorous, it has also been known to eat fruit. [3] However, in captivity, they refused to eat fruit, indicating a preference toward meat or insects. Another unique prey item for this species are geckos. This prey item was previously thought to have been only displayed in one other species of New World bat - T. cirrhosis. [4] They are able to take prey of up to 70 grams (2.5 oz) weight, but more commonly feed on smaller vertebrates of 10 to 35 grams (0.35 to 1.23 oz). Prey is not consumed until the bat has returned to its roost and returned to its head-down position. [2]

Behavior

Big-eared woolly bats fly slowly, partially because of their large size, flying 1 or 2 meters above ground and usually in dense thickets. They are typically either solitary or part of a small group. Colony sizes vary between one and seven individuals, consisting of a male-female adult pair and their pup(s). [5]

Reproduction

Big-eared woolly bats give birth to a single young per reproduction cycle, after a gestation period of more than 100 days. This is the largest parental investment exhibited in a species belonging to the Phyllostomid family. Newborn pups are born roughly 32.5% of the size of the mother, whereas other species in the Phyllostomid family range from 18.6-29.4% of mother size. [5]

Related Research Articles

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

The spectral bat, also called the great false vampire bat, great spectral bat, American false vampire bat or Linnaeus's false vampire bat, is a large, carnivorous leaf-nosed bat found in Mexico, Central America, and South America. It is the only member of the genus Vampyrum; its closest living relative is the big-eared woolly bat. It is the largest bat species in the New World, as well as the largest carnivorous bat: its wingspan is 0.7–1.0 m (2.3–3.3 ft). It has a robust skull and teeth, with which it delivers a powerful bite to kill its prey. Birds are frequent prey items, though it may also consume rodents, insects, and other bats.

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

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

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<span class="mw-page-title-main">Honduran white bat</span> Species of bat

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

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<span class="mw-page-title-main">Tailed tailless bat</span> Species of bat

The tailed tailless bat is a species of leaf-nosed bat from South America.

<span class="mw-page-title-main">Brazilian big-eyed bat</span> Species of bat

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<span class="mw-page-title-main">Dekeyser's nectar bat</span> Species of bat

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<span class="mw-page-title-main">White-throated round-eared bat</span> Species of bat

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

The long-legged bat is a member of the Phyllostomidae family in the order Chiroptera. Both males and females of this species are generally small, with wingspans reaching 80mm with an average weight ranging between 6 and 9 grams. The facial structure of these bats includes a shortened rostrum with a prominent noseleaf. The most defining feature of these bats however, is their long posterior limbs that extend farther than most Phyllostomidae bats. At the ends of these hind legs, the long-legged bat has abnormally large feet equipped with strong claws.

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

The little big-eared bat is a bat species in the order Chiroptera and family Phyllostomidae. It is from South and Central America particularly Colombia, Venezuela, Guyana, French Guiana, Brazil, Peru, Ecuador, Bolivia, Argentina, Paraguay, Suriname and Trinidad. Though its exact population is unknown, it is considered widespread and occurs in protected areas, although deforestation may be a minor threat, it is classified as Least Concern. It is found in multistratal evergreen forests and dry thorn forests and forages near streams and is found hollow trees, logs, caverns, or houses with groups up to twelve. The head and body length measures at 44 millimetres (1.7 in) for males and 45 millimetres (1.8 in) for females. Males usually weigh about 5 grams (0.18 oz) while females weigh 5.7 grams (0.20 oz).

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

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

The little yellow-shouldered bat is a bat species from South and Central America. It is a frugivore and an effective seed disperser.

<span class="mw-page-title-main">Tent-making bat</span> Species of bat

The tent-making bat is an American leaf-nosed bat (Phyllostomidae) found in lowland forests of Central and South America. This medium-sized bat has a gray coat with a pale white stripe running down the middle of the back. Its face is characterized by a fleshy noseleaf and four white stripes. Primarily a frugivore, it may supplement its diet with insects, flower parts, pollen, and nectar. Its common name comes from its curious behavior of constructing tents out of large, fan-shaped leaves. These roosts provide excellent protection from the tropical rains, and a single tent roost may house several bats at once. This bat is quite common in its geographic range; hence, its conservation status is listed as Least Concern.

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<span class="mw-page-title-main">Waterhouse's leaf-nosed bat</span> Species of bat

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<span class="mw-page-title-main">Cuban flower bat</span> Species of bat

The Cuban flower bat, also called Poey's flower bat, is a species of bat in the family Phyllostomidae. It is found on the Caribbean islands of Cuba and Hispaniola.

<i>Sturnira parvidens</i> Species of bat

The little yellow-shouldered Mesoamerican bat is a species of leaf-nosed bat found in Mexico and Central America.

References

  1. Barquez, R.; Perez, S.; Miller, B.; Diaz, M. (2015). "Chrotopterus auritus". IUCN Red List of Threatened Species . 2015: e.T4811A22042605. doi: 10.2305/IUCN.UK.2015-4.RLTS.T4811A22042605.en . Retrieved 18 November 2021.
  2. 1 2 3 4 5 Medellin, Rodrigo (1989-10-26). "Chrotopterus auritus" (PDF). Mammalian Species (343): 1–5. doi:10.2307/3504232. JSTOR   3504232 . Retrieved 2015-11-19.
  3. Uieda, Wilson; Sato, Therys M.; Carvalho, Maria C. de; Bonato, Vinícius (2007). "Fruits as unusual food items of the carnivorous bat Chrotopterus auritus (Mammalia, Phyllostomidae) from southeastern Brazil". Revista Brasileira de Zoologia. 24 (3): 844–847. doi: 10.1590/S0101-81752007000300035 . hdl: 11449/28389 .
  4. Tuttle, M. D. (1967-05-20). "Predation of Chrotopterus auritus on Geckos". Journal of Mammalogy. 48 (2): 319. doi:10.2307/1378041. JSTOR   1378041.
  5. 1 2 Esbérard, C. E. L.; Motta, A. G.; Almeida, J. C.; Ferreira, L. C. S.; Costa, L. M. (August 2006). "Reproduction of Chrotopterus auritus (Peters) in captivity (Chiroptera, Phyllostomidae)". Brazilian Journal of Biology. 66 (3): 955–956. doi: 10.1590/S1519-69842006000500022 . PMID   17119844.