Dwarf bonneted bat | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Chiroptera |
Family: | Molossidae |
Genus: | Eumops |
Species: | E. nanus |
Binomial name | |
Eumops nanus Miller, 1900 | |
Synonyms | |
|
Eumops nanus is a species of bat found in Central and South America.
It was first described by American zoologist Gerrit Smith Miller Jr. in 1900. Miller initially placed it into the genus Promops . The holotype for the species was collected in Chiriquí Province in Panama; it was sent to Miller by British zoologist Oldfield Thomas. Thomas had received the specimen from HJ Watson, who was the owner of extensive plantations in Panama. [2] [3] [4] When Miller described a new genus of bat in 1906, Eumops , he placed Promops nanus in the new genus, renaming it Eumops nanus. [5] Its taxonomy has been revised several times, however, with some authors considering it a subspecies of the dwarf bonneted bat. [6] E. nanus was consistently maintained as a subspecies of the dwarf bonneted bat from 1932 until 2007, when Eger et al. recommended that it should be elevated to a species once more. [7]
Its species name nanus is from Latin meaning "dwarf." Miller stated that the species reminded him of a miniature Wagner's bonneted bat. [4]
It is the smallest member of its genus, weighing 6–14 g (0.21–0.49 oz). [8] Miller characterized it as "essentially a miniature of Promops glaucinus ." [4] Its forearm is approximately 37–49 mm (1.5–1.9 in) long. Its fur is reddish-brown or dark brown. [8] Its lips are wrinkled. The ears are large and rounded, [8] extending slightly over the forehead with their inner edges touching each other. [4] Its tragus is large and rounded. [8] Its calcar has a pronounced keel. [4] Its tail extends beyond the edge of the uropatagium. Its dental formula is 1.1.2.32.1.2.3 for a total of 30 teeth. [8]
It is nocturnal, roosting in sheltered places during the day. The holotype was collected under the roof of a house where it was roosting. [4] It is also known to roost in tree cavities. [7] It is insectivorous, consuming moths, beetles, true bugs, and other insects. [1] [8] It will forage for prey over bodies of water. In one population in Mexico, late June is the most popular time for parturition. The female nurses the young, called a pup, for 6–8 weeks. [1]
Its range extends from southern Mexico to northern Colombia and Venezuela, with documented occurrence in Belize, Colombia, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, and Venezuela. [1] Its occurs in areas of tropical thorn forests, tropical humid forests, and forest edge habitat. [7]
It is currently evaluated as least concern by the IUCN —its lowest conservation priority. It meets the criteria for this designation because it has a large range, it occurs in several protected areas, and its population is unlikely to be declining at a rapid rate. Nonetheless, it is a rarely-encountered species. [1]
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 black bonneted bat, also known as Shaw's mastiff bat,, is a species of bat from the Americas.
The dwarf bonneted bat, or Peters' mastiff bat,, is a bat species from South and Central America.
Wagner's bonneted bat or Wagner's mastiff bat, is a species of bat in the family Molossidae. It is found in the Americas from Argentina and Peru north to Mexico, and Cuba. Populations in Florida in the United States are now recognized as the Florida bonneted bat
Sanborn's bonneted bat, is a bat species from South and Central America. It was first described from a specimen collected at Colonia Hansa, Brazil, and is sometimes also known as the Hansa bonneted bat.
The Colombian bonneted bat, also known as Trumbull's bonneted bat, is a bat species found in Bolivia, Brazil, Colombia, French Guiana, Guyana, Peru, Suriname and Venezuela.
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 big crested mastiff bat, is a bat species from South and Central America.
Miller's long-tongued bat is a bat species found in northern Brazil, Venezuela, Colombia, Guyana, Trinidad and Tobago, Grenada, the Netherlands Antilles and the U.S. Virgin Islands.
Eumops is a genus of bats in the family Molossidae. A total of 17 species of this genus have been described. The name "Eumops" comes from the Greek prefix "Eu-", meaning "good" or "true," and the Malayan word "mops," which means bat.
The western mastiff bat, also known as the western bonneted bat, the greater mastiff bat, or the greater bonneted bat, is a member of the free-tailed bat family, Molossidae. It is found in the Western United States, Mexico and South America. This species is the largest bat native to North America, and some of its distinguishing characteristics are its large ears, wings, and forearms. The subspecies Eumops perotis californicus is a species of concern as identified by the U.S. Fish and Wildlife Service. The range of this subspecies is principally southwest desert regions of the United States, along the border with Mexico; however, the range extends as far north on the Pacific coast as Alameda County, California.
Underwood's bonneted bat is a species of bat in the family Molossidae.
The Patagonian bonneted bat, also called the Patagonian dwarf bonneted bat, is a species of free-tailed bat found in Argentina, Bolivia and Paraguay.
The Florida bonneted bat or Florida mastiff bat is a species of bat in the genus Eumops, the bonneted bats or mastiff bats. Until recently, it was classified as a subspecies of Wagner's bonneted bat. It is endemic to southern Florida in the United States. This species has one of the smallest geographical distributions of any New World bat. It has been called "one of the most critically endangered mammal species in North America". It is protected under the Endangered Species Act.
The Cozumelan golden bat is a bat species found in Mexico, Guatemala, Belize, Honduras, Nicaragua, Costa Rica, Panama and Colombia. At one time, this species was considered to be a subspecies of the golden bat. Little is known about the biology of this bat, but it has a wide range, no particular threats have been identified, and the population seems steady, so the International Union for Conservation of Nature has assessed its conservation status as being of "the least concern".
Cynomops milleri is a species of bat that is native to South America. It was previously considered a subspecies of the Para dog-faced bat. It is considered a small- to medium-sized member of its genus. It is classified as least concern by the International Union for Conservation of Nature because it appears to be common and widespread. It is found in Venezuela, French Guiana, Guyana, Suriname, Brazil, and Peru.
The Mexican greater funnel-eared bat is a species of bat found in Central America. While initially and currently described as a species, from 1959 to 2006 it was considered a subspecies of the Mexican funnel-eared bat, Natalus stramineus.
Eumops ferox, the fierce bonneted bat or the chestnut mastiff bat, is a species of free-tailed bat found in the Caribbean and Mexico. Until recently, it was synonymous with Wagner's bonneted bat.
Eumops wilsoni is a species of bat native to Ecuador and Peru. The bat has a distinct karyotype, sequence of the mitochondrial cytochrome-b gene, and other distinct genetic markers that distinguish it from closely related bats such as Eumops glaucinus and Eumops ferox. However, there are no morphological distinctions from those related species and thus there is uncertainty of its geographic distribution and population status, leading to its classification as "data deficient". Local threats to the bat's dry forest habitat further impede efforts to study the bats. Transition to farmland and urbanization threatens the dry forest habitat of the bat in the Andes. As an endemic species, the bat may be threatened by this habitat loss.
Eumops delticus is a species of free-tailed bat found in South America.