| Egyptian free-tailed bat | |
|---|---|
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| Egyptian Free Tailed Bat | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Chiroptera |
| Family: | Molossidae |
| Genus: | Tadarida |
| Species: | T. aegyptiaca |
| Binomial name | |
| Tadarida aegyptiaca (É. Geoffroy, 1818) | |
The Egyptian free-tailed bat, also known as Egyptian guano bat or Egyptian nyctinome, (Tadarida aegyptiaca) is a species of bat in the family Molossidae.
The Egyptian free-tailed bat has fine, dense fur which is greyish brown, shading darker on the head and back and paler on the underparts, particularly around the throat. The wings are narrow and pointed with translucent light brown membranes, there is a short tail which is projects beyond the membrane connecting the wings and the ears sit close together on the top of the head and are rather rounded in shape. The face is rather bulldog-like and heavily wrinkled faces and this gives rise to the family name Molossidae, which refers to the Ancient Epirote mastiffs called molossus. Head and body length is 6–8 cm. Forearms 5 cm. [2]
The Egyptian free-tailed bat is widely but apparently locally distributed throughout Africa, except parts of the north west [1] and east through the Arabia and the Middle East to south Asia as far east as Bangladesh and south to Sri Lanka. [2]
The Egyptian free-tailed bat occurs in a wide range of habitats, from arid savannas to humid uplands, so long as there is access to water both as a source of moisture for the bats and because the bats' insect food tends to congregate over and around water. It also requires cliff faces and in caves to roost in but it will also use man-made structures for roosting, such as old buildings and temples. [2]
The Egyptian free-tailed bat is, like most bats, nocturnal and roost by day in colonies which can vary from as few as 3 to thousands of individual bats. It is a fast flier and in a night's foraging can cover large distances over open terrain. Prey is taken both in flight and plucked from the ground and includes beetles, caterpillars, flies, moths, spiders, termites alates and wasps. It is not as clumsy as other bat species on the ground and can scamper about quite adeptly. [2]
Roost sites have a strong smell and it is thought that this odour may be important in social interactions and with the bats being able to identify their roost sites. The female gives birth to one young each year, normally in the summer, and pregnancy lasts 4 months. [2]
Molecular sequence data indicates T. aegyptiaca's closest relative is Chaerephon jobimena of Madagascar. These two species plus Tadarida brasiliensis of the Americas form a clade believed to be about 9.8 million years old. [3]
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".
The Molossidae, or free-tailed bats, are a family of bats within the order Chiroptera. The Molossidae is the fourth-largest family of bats, containing about 110 species as of 2012. They are generally quite robust, and consist of many strong-flying forms with relatively long and narrow wings with wrinkled lips shared through their genus. Their strong flying form allows them to fly 60 miles per hour using tail winds and at altitudes over 10,000 feet. This makes them unique among bats, as they are the only bat family that withstands the elevation. They are widespread, being found on every continent except Antarctica. They are typically found in caves, abandoned mines, or tunnels.
The genus Tadarida has 9 or more species of free-tailed bats divided into two subgenera, with the first of these containing seven species spread across the Old World. Four species occur exclusively in Africa including Madagascar while two more species occur in central Papua New Guinea, and western and southern Australia, respectively.
The Mexican free-tailed bat or Brazilian free-tailed bat is a medium-sized bat native to the Americas, so named because its tail can be almost half its total length and is not attached to its uropatagium. It has been claimed to have the fastest horizontal speed of any animal, reaching top ground speeds over 99 mph (160 km/h). It also flies the highest among bats, at altitudes around 3,300 m (10,800 ft).
The dwarf dog-faced bat is a species of free-tailed bat from South America. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Paraguay and Uruguay, typically at lower elevations. It is one of two species in the genus Molossops, the other being the rufous dog-faced bat. Three subspecies are often recognized, though mammalogist Judith Eger considers it monotypic with no subspecies. It is a small free-tailed bat, with a forearm length of 28.9–32.5 mm (1.14–1.28 in) and a weight of 5–8 g (0.18–0.28 oz); males are larger than females. It is brown, with paler belly fur and darker back fur. Its wings are unusual for a free-tailed bat, with exceptionally broad wingtips. Additionally, it has low wing loading, meaning that it has a large wing surface area relative to its body weight. Therefore, it flies more similarly to a vesper bat than to other species in its own family. As it forages at night for its insect prey, including moths, beetles, and others, it uses two kinds of frequency-modulated echolocation calls: one type is to navigate in open areas and to search for prey, while the other type is used for navigating in cluttered areas or while approaching a prey item.
The European free-tailed bat is a species of free-tailed bat found in the Old World. Other common names include the bulldog bat and the mastiff bat because of the presence of wrinkling on the snout. This bat is found in the Mediterranean region of Europe and in scattered locations across Asia at altitudes from sea level to 3100 m. The range of distribution is from the Canary Islands and Madeira through the whole Mediterranean area, Asia Minor, the Caucasus and the Middle East. In the north to southern France, southern Germany, Switzerland, Croatia and Bulgaria. It was reported from Korea in 1931, but has not been sighted on the Korean Peninsula since then. Populations in Japan, Taiwan and Korea are now considered to be a separate species Tadarida insignis.
Ozimops planiceps is a small bat in the family Molossidae, native to Australia and Indonesia.
Ansorge's free-tailed bat is a species of bat in the family Molossidae native to sub-Saharan Africa. It is named for W.J. Ansorge, who collected the first formally described specimen.
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 little free-tailed bat is a species of the genus Chaerephon in the family Molossidae. It is widely distributed across Africa and islands around the continent.
The São Tomé free-tailed bat is a species of bat in the family Molossidae. It is endemic to São Tomé and Príncipe. Its natural habitats are dry savanna, moist savanna, and plantations. It is threatened by habitat loss. Only three individuals have ever been documented.
The hairless bat, also called the naked bulldog bat and greater naked bat, is a species of bat in the family Molossidae. The generic name Cheiromeles comes from the Greek word cheir and the species name is derived from the Latin torques.
The Mongalla free-tailed bat is a species of bat in the family Molossidae. It is found in Burkina Faso, Cameroon, Democratic Republic of the Congo, Ivory Coast, Ghana, Kenya, Mali, Sudan, and Uganda. Its natural habitats are dry savanna, moist savanna, and subtropical or tropical seasonally wet or flooded lowland grassland.
The Midas free-tailed bat is a species of bat scientifically classified in the order Chiroptera and the family Molossidae. It is distributed from western Africa to Saudi Arabia and further south. Its natural habitats are dry savanna, moist savanna, woodlands and hot deserts. The more southern are also known to live around large rivers or the swamps.
The pocketed free-tailed bat is a species of bat in the family Molossidae found in Mexico and in Arizona, California, New Mexico, and Texas in the United States. They resemble the Brazilian free-tailed bat but differ morphologically. They are recognized as "least concern" by the IUCN and as "apparently secure" by Natureserve.
The white-striped free-tailed bat is a species of bat in the family Molossidae. Its echolocation calls are audible to humans, which is a characteristic found in only a few microbat species. The species was formerly classified as Tadarida australis.
The blunt-eared bat or Peruvian crevice-dwelling bat is a species of bat in the family Molossidae. It is monotypic within the genus Tomopeas and subfamily Tomopeatinae. It is endemic to Peru, where it is considered critically endangered. It is threatened by habitat loss.
Wroughton's free-tailed bat is a free-tailed bat formerly considered to be confined to the Western Ghats area of India, though it has also recently been discovered in northeast India and in a remote part of Cambodia. It is classified as a Data Deficient species as little is known about their habitat, ecology, or foraging range.
Chaerephon is a genus of Old World free-tailed bats in the family Molossidae. Molecular sequence data indicates that Chaerephon, Mops and Tadarida are not monophyletic taxa. The closest relatives of Chaerephon jobimena of Madagascar are Tadarida aegyptiaca of Africa and southwest Asia, and Tadarida brasiliensis of the Americas, which form a clade believed to be about 9.8 million years old. However, the grouping of Chaerephon minus C. jobimena plus Mops was found to be monophyletic.
Chaerephon jobimena, commonly known as the black and red free-tailed bat, is a species of bat in the family Molossidae. It is endemic to western Madagascar. With a forearm length of 45 to 48 mm, C. jobimena is somewhat larger than other Malagasy bats assigned to Chaerephon, but similar in size to Tadarida aegyptiaca.
Media related to Tadarida aegyptiaca at Wikimedia Commons 
Data related to Tadarida aegyptiaca at Wikispecies
