Lesser long-nosed bat | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Chiroptera |
Family: | Phyllostomidae |
Genus: | Leptonycteris |
Species: | L. yerbabuenae |
Binomial name | |
Leptonycteris yerbabuenae Martinez & Villa, 1940 | |
Synonyms | |
L. nivalis yerbabuenae Contents |
The lesser long-nosed bat (Leptonycteris yerbabuenae) is a medium-sized bat found in Central and North America. [1] It is sometimes known as Sanborn's long-nosed bat or the Mexican long-nosed bat, though the latter name is better avoided since it is also used for the entire genus Leptonycteris and for one of the other species in it, the greater long-nosed bat (L. nivalis).
Originally described as a subspecies of the greater long-nosed bat, [2] it was later considered a subspecies of the southern long-nosed bat, before being confirmed as a distinct species. [1] Enthusiasts for the bats often refer to them simply as leptos because they are the best known members of the genus Leptonycteris.[ citation needed ] The scientific name is derived from the type locality, near Yerbabuena in Guerrero, Mexico. [2]
Lesser long-nosed bats are relatively small bats, with a total length as adults of around 8 centimetres (3.1 in), and weighing between 15 and 25 grams (0.53 and 0.88 oz), depending on the time of year. Males and females are similar in size, and virtually indistinguishable. As their common name implies, they have a long, narrow snout, and this terminates in a small triangular nose-leaf. While they do have three internal caudal vertebrae, they have no visible tail. [2]
The tongue of lesser long-nosed bats has a number of adaptations for lapping nectar, including long ridges and rough, conical papillae, [3] which may also help protect against periodontal disease by scraping the teeth clean. Their wings have a high wing loading, allowing for energy efficient long-distance flight in open habitats, at the expense of manoeuvrability. [4]
Only three other species of North American bat have a nose-leaf, and two of these, the Mexican long-tongued bat, and the California leaf-nosed bat, have a distinct tail, and also, in the latter case, much larger ears than lesser long-nosed bats do. They are more easily confused with their close relatives, the greater long-nosed bats, but, in addition to being about 10% larger, the latter have shorter, greyish fur, and proportionately longer wings. [2]
Adult lesser long-nosed bats are yellow-brown or grey above, with rusty brown fur below. Their ears are small.
Lesser long-nosed bats inhabit semi-arid grassland, scrub, or forest habitats below about 550 metres (1,800 ft). They are able to tolerate unusually high temperatures of up to 41 °C (106 °F), due in part to a low metabolic rate. They do not enter torpor or hibernate, but die at ambient temperatures of below about 10 °C (50 °F). [5]
In the north, they reach southern California, Arizona and New Mexico. However, they are only found as summer migrants in the United States and, more generally, north of the mid-Sonora, arriving in these regions between April and July, and migrating south again in September. [2] Some individuals have been estimated to migrate as far as 1,600 kilometres (990 mi) each year. [6] Their migratory patterns have been shown to follow a path determined by seasonal availability of food plants, with cacti, Agave , and plants of the C3 metabolic pathway being strong predictors of distribution. [7] They are found year-round in the western and southern parts of Mexico, and along the east coast, and in Guatemala, El Salvador, and Honduras. [2]
There are no recognised subspecies.
Lesser long-nosed bats feed mainly on nectar from night-blooming plants such as saguaro, organ pipe cactus, [8] as well as century plant and other agaves. They are important pollinators of night-blooming cactus. [9] They may also eat some cactus fruits, and, during the winter, on pollen from a range of other plants as the opportunity arises. [2]
Lesser long-nosed bats roost during the day in large colonies of up to several thousand individuals in caves or abandoned mines, dispersing at night to feed. The size and composition of such colonies varies throughout the year, as the bats migrate to summer feeding grounds. At some times of the year, many colonies become occupied only by nursing females and their young, with males occupying smaller temporary roosts. [2]
The breeding season lasts from November to December for bats that migrate northward during the summer, but from May to June in those that give birth in the south. Despite the presence of two distinct mating seasons, individual bats mate only once a year. Gestation lasts about six months, and results in the birth of a single pup, during the time of local peak flower availability. [2]
Newborn young weigh 4 to 7 grams (0.14 to 0.25 oz) and are fully weaned at four to eight weeks of age. They are able fly after a month, but do not begin to exit the maternity cave for a further two to three weeks. They are known to live for up to at least eight years in the wild. [2]
The New World leaf-nosed bats (Phyllostomidae) are bats found from southern North America to South America, specifically from the Southwest United States to northern Argentina. They are ecologically the most varied and diverse family within the order Chiroptera. Most species are insectivorous, but the phyllostomid bats include within their number true predatory species and frugivores. For example, the spectral bat, the largest bat in the Americas, eats vertebrate prey, including small, dove-sized birds. Members of this family have evolved to use food groups such as fruit, nectar, pollen, insects, frogs, other bats, and small vertebrates, and in the case of the vampire bats, even blood.
The Saussure's long-nosed bats or Mexican long-nosed bats form the genus Leptonycteris within the leaf-nosed bat family Phyllostomidae. Like all members of the family, they are native to the Americas. According to ITIS, three species are currently recognised, though varying placements of the populations into species and subspecies will be encountered. The species recognised by ITIS are:
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.
Ironwood Forest National Monument is located in the Sonoran Desert of Arizona. Created by Bill Clinton by Presidential Proclamation 7320 on June 9, 2000, the monument is managed by the Bureau of Land Management, an agency within the United States Department of the Interior. The monument covers 129,055 acres (52,227 ha), of which 59,573 acres (24,108 ha) are non-federal and include private land holdings and Arizona State School Trust lands.
The long-tongued fruit bat is a species of megabat. It is nectarivorous, feeding on nectar from primarily banana flowers. It is found in several countries in South and Southeast Asia.
The lesser long-tongued bat, also called the lesser long-tailed bat, is a bat species from South America.
The dark long-tongued bat is a species of bat from South and Central America. It was formerly considered the only species within the genus Lichonycteris, but is now recognized as one of two species in that genus, along with the pale brown long-nosed bat. It is small species of bat, with adults weighing 6–11 g (0.21–0.39 oz) and having a total length of 46–63 mm (1.8–2.5 in).
Anoura is a genus of leaf-nosed bats from Central and South America. Anoura members lack or have a short tail, and are nectarivorous bats of small to medium size among the Phyllostomidae.
The Mexican long-tongued bat is a species of bat in the family Phyllostomidae. It is the only species within the genus Choeronycteris. The species is found in El Salvador, Guatemala, Honduras, Mexico, and the United States.
Underwood's long-tongued bat is a species of bat in the family Phyllostomidae. It is the only species within the genus Hylonycteris. It is found in Belize, Guatemala, Mexico, Nicaragua, and Panama. Hylonycteris underwoodi feed on nectar, pollen grains, agave and fruits. This choice of food has allowed them to gain the ability of hovering flight, thereby evolving their body mass and size to compensate for the same.
The southern long-nosed bat is a South American species of bat in the family Phyllostomidae.
The greater long-nosed bat or Mexican long-nosed bat is a species of bat in the family Phyllostomidae. It is found in Mexico and the United States. It chiefly consumes pollen and nectar, particularly from agave plants and cacti. Its habitat includes desert scrub and open woodlands. It is threatened by habitat loss.
Leach's single leaf bat, also known as Greater Antillean long-tongued bat, is a species of bat in the family Phyllostomidae. It is found in the southern Bahamas and in all the Greater Antilles. It forms large colonies, with up to a few hundred thousand individuals, and feeds on a relatively wide variety of food items including pollen, nectar, fruit and insects.
The banana bat is an endangered species of bat in the family Phyllostomidae. It is also commonly known as the trumpet-nosed bat or the Colima long-nosed 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.
The long-snouted bat is a species of bat in the family Phyllostomidae. It is the only species within the genus Platalina. It is endemic to northern Peru and northern Chile. It feeds almost exclusively on the nectar and fruit of the columnar cactus. The species is rare, but has a wide distribution with at least 25 populations, and is listed as near-threatened due to habitat loss causing the removal of their primary food source.
Glossophaginae is a subfamily of leaf-nosed bats.
Long-nosed bat may refer to:
Dryadonycteris capixaba is a species of leaf-nosed bat found in South America. It is the only species within the genus Dryadonycteris.
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