BATS
Bats are 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. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
Bats are also used symbolically in religion, mythology, superstition, and the arts. Perceived medical uses of bats include treating epilepsy, night blindness, rheumatism, asthma, chest pain, and fever in some renowned world religions. Bat meat is consumed with many of all species hunted for food. Other economic uses of bats include using their teeth as currency and bat guanos as fertilizers.
WHAT ARE BATS?
Bats are nocturnal, flying animals that are known for inhabiting dark and secluded locations. Since the discovery of the first bat fossil dating back over million years ago, scientists have identified over 980 species of bats worldwide. Depending on the species, bats can live for up to 30 years. African bats fall into two major categories: large fruit bats and smaller, insect-eating bats, neither of which attacks people. In addition to a difference in size between the two types, there is a great variation in the extent and details of the wings, which are formed by the naked membrane of skin that extends from the neck to the wrist and between the fingers, and finally to the tail. Wing shapes vary from species to species. Usually, the swift fliers have long, narrow wings while the slow fliers have broad, rounded ones. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
Bats in Kenya
For many people it may be surprising to know that of the many species of mammals found across the world, bats constitute one of the major regions. Despite this fact, it’s a paradox that these flying mammals are among the least known and often despised species. Much of the acrimony towards these maligned creatures are perhaps owed to their unaesthetic appearances and uncanny habits. Moreover being nocturnal creatures, they are not so well appreciated as with other animals. Several myths mar their reputation. They have always been depicted as vampires or evil creatures in novels and movies world over.
Bats are the only mammals equipped to fly (not glide), though they lack hollow skeletal structure and feathers unlike birds. They have a thin stretchable membrane between their legs and fingers which are called webbings. These webbings give them the ability to have a functional wing and have a genuine flight. The wings of bats are very thin compared to birds which allows them to maneuver more precisely. Since the wing membranes are very thin they are prone to tear, but have the ability to repair and heal themselves.
Ecology & behavior: Bats are broadly classified into two groups, megabats and microbats. Megabats are usually large and live primarily in tropical regions. The megabats (fruit & pollen eating or nectar feeding bats) have well developed eyes and nose and hence use their eye sight and sense of smell to locate fruits and flowers. The microbats (insectivorous bats) are usually smaller than megabats and have small eyes but large ears. Microbats constitute 70% of bat species while megabats constitute most of the remaining 30% species.
Habitat: The megabats are commonly known as fruit bats and live in large colonies on tree tops or in caves. The fruit bats have large foraging range often ranging more than 50Km. While the microbats too roost in large colonies they prefer caves, rock crevices, old mines, tree hollows and manmade structures like under bridges, culverts, attics, ruins. However there are few species of microbats that prefer a solitary life. The microbats have a relatively small foraging area.
The bats play a very important role in ecology by acting as seed dispersal’s and insect control. Their fecal dropping are known as “Guano”, and is highly rich in nitrogen, phosphorous and calcium apart from fungi and bacteria. These ingredients make bat guano as one of the best organic fertilizers. The bat guano is harvested by people around the world and used as fertilizers for their fields.
Anatomy of Bats: Bat have varied shapes and sizes which reflect their feeding habits and they also vary in color and fur texture. Bats are mammals which are adapted to flight, as a result they have an easily recognizable appearance. The skeletal structure of bat wing is made up of extensively modified forelimb bones. The legs are also modified wherein the hind limbs are rotated 180 degrees pointing backwards. This change in their anatomical structure gives them the ability to hang upside down.
Diet: The diet of the bats varies from fruits, flowers, nectar, insects, birds, fish and even small mammals. Bats usually consume almost one third their body weight of food. The megabats which are usually larger in size fee on fruits, flowers, pollen and nectar. The microbats primarily eat insects (invertebrates), but there are few species of microbats that feed on rodents and fish. The microbats track their prey using echo location and catch them by their teeth either in air during flight or from the ground or foliage. Bats have an unusual habit of drinking water in flight especially the microbats, while the megabats wet their body by dipping themselves in flight but lick from chest once they fly to roost.
Communication: Bats use varied form of communication like most other mammals do. The microbats have also evolved a more complex system of using ultrasound by producing sonar signals. This form of communication is known as “Echolocation” and bats use these ultrasonic clicks to communicate between each other, to detect prey and also to navigate in flight. The megabats do not use ultrasound to detect their food or to navigate as they posses better vision and olfactory system to detect and identify fruits and nectar.
BATS APPEARANCE
A bat’s body is covered completely with hair and they tend to have rather large ears. Bats use their ears to help them detect the location of objects around them or to locate insects flying through the air. Depending on the species, an adult bat can weigh less than 1 oz. up to 3 lbs. Bats have two wings, consisting of a double membrane stretched across their elongated fingers and arm bones, which are their primary way of getting around. They have four limbs, two legs and two arms with the same bones as human hands modified as part of their wings. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
Another interesting bat fact is they are the only mammal capable of true flight. The surface of a bat’s wing is equipped with bumps called “Merkel cells”. These bumps have tiny hairs that help sense airflow during flight so the bat can make adjustments for maximum flight efficiency.
BAT
Bats are myth-understood. There may be more myths about bats than any other wildlife. Some people think bats are blind bloodsuckers that fly into your hair and carry rabies. In fact, these flying mammals are extremely useful to humans and are gentle, intelligent creatures. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
They’ve been called creepy, scary and spooky, but bats are an important species that impact our daily lives in ways we might not even realize. From pollinating our favorite fruits to eating pesky insects to inspiring medical marvels, bats are heroes of the night.
Bats are the only flying mammal. While the flying squirrel can only glide for short distances, bats are true fliers. A bat’s wing resembles a modified human hand — imagine the skin between your fingers larger, thinner and stretched. This flexible skin membrane that extends between each long finger bone and many movable joints make bats agile fliers.
Baby bats are called pups, and a group of bats is a colony. Like other mammals, mother bats feed their pups breastmilk, not insects. Most bats give birth to a single pup! There is at least one species that commonly has twins and that is the eastern red bat. Momma bats form nursery colonies in spring in caves, dead trees and rock crevices.
Bats can be found nearly everywhere, except in polar regions, extreme deserts, and a few isolated islands. They spend their daylight hours hiding in roosts around the tropics, dense forests, and wetlands. Roosts are where bats go to rest, usually in cracks and crevices that keep them hidden and protected. The most common roosts are existing structures such as caves, tree hollows, and old buildings. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
No matter where they spend their seasons, all bats roost upside down. They can hang from their hind feet and legs while resting. Scientists still aren’t sure why bats do this, but here’s one theory: Bats have to fall into flight, which makes hanging upside down the best way to escape quickly.
Bats roost upside down, since the lightweight bones in their hind legs cannot support their body weight in an upright position. Their wings wrap around them like a cloak while they rest. Bats sleep during the day and go out at night in search of food. Bat wings are laden with blood vessels, which help them heal rapidly if injured.
The micro bats use echolocation to find their insect meals. They are able to “see” their world and detect prey by emitting short bursts of high-pitched sounds that bounce off objects and return to the bat as echoes. Most bats delay emitting a second signal until they have received the echo from the first.
WHAT DO BATS EAT?
Although various bat species eat different kinds of food, the vast majority consume a variety of insects such as moths, beetles, gnats, and crickets. In this respect, the bat’s nocturnal behavior provides certain advantages. Enormous numbers of insects fly at night, and with the exception of spiders, there are few competitors for such food. Other than the occasional owl or snake, there are also few predators that can capture or pursue a bat in the dark. Night brings cool temperatures which help dissipate the heat generated by the muscular activity of flight. Because the bat has a thin wing membrane, flying during the heat of the day could be hazardous causing excessive absorption of heat and resulting in dehydration and possible heat prostration. Nocturnality offers protection from the heat and helps the bat maintain its body temperature and moisture. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
BAT CONTROL
Bat-proofing a structure is the best way to prevent an infestation and the best time to bat-proof is after bats have left for their hibernation periods in the autumn. Attempting to bat-proof at any other time raises the possibility of boxing in babies who will then look for other parts of the house to escape to. At dusk, homeowners should inspect the exterior of the home and observe where bats enter and exit. Common access points include attic louvers and under facia boards. It is recommended that homeowners seal any cracks or crevices with caulk and steel wool. Pay special attention to holes in the structure that lead to dark secluded areas, like attics and belfries. Also, screen attic vents and openings to chimneys, and install door sweeps. Exclusion is the only method to keep bats out long term. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
DO BATS BITE?
Bats, in fact, will bite if they feel threatened or if they are handled improperly. A common misconception is that bats will attack humans for no reason, a myth that has been proven inaccurate. Most bat species feed on insects like moths and beetles. If you or someone you know has been bitten by a bat, it is important to seek medical care immediately to test for rabies transmission. Be sure to wash the bite and any other locations that have come in contact with the bat’s saliva. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
BATS HABITS
Most bats leave their roosts at dusk and return around dawn. When traveling, they first stop at a stream or pond for a drink of water before feeding. Female bats of most species tend to only reproduce one pup, but some species can give birth to two to four pups. At birth, a baby bat weighs up to 25 percent of its mother’s weight. While young bats are taken care of by females in the colony, male bats do not contribute to the caring of the babies. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
Bats are a very important part of the pollination process, as they feed on insects that visit flowers and also feed on various types of fruit that helps disperse seeds. Since many bats do feed on insects, they can help keep pest insect populations down.
BATS HABITAT
Bats can be found in almost every type of habitat. They live in deserts, woodlands, suburban communities, caves, and cities. Bats make their homes (roosts) in a variety of different structures. They can use trees, caves, cracks in buildings, bridges, and even the attic of a house. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
Bats typically prefer warmer temperatures, security, food source and they have several ways of dealing with all these especially the cold. Some bats, including the big brown bat and the eastern red bat, hibernate in caves and trees to survive the winter. They can sometimes be seen flying around on warm winter days. Many bats migrate to warmer climates or even to a nearby cave.
Bats can be found in a variety of habitats, including deserts, tropics, wetlands, woodlands, suburban communities, caves, and cities. Bats spend the daylight hours resting in roosts, which can be made from a variety of structures like trees, caves, and human buildings. These structures provide shelter and help keep them protected. The seasons often dictate where a bat will choose its roost because many bat species hibernate in winter.
BAT DIET
The majority of bats worldwide are insectivores. They hunt at night and eat flying insects such as mosquitoes, beetles, and moths, many of which are considered pests. Bats provide an important ecological service by eating tons of insects. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
Not all bats eat insects. Some live on a diet of nectar and fruit. Bats that feed on nectar also serve as pollinators to nighttime blooming plants. To attract these flying mammals, flowering plants have evolved a musty or rotten perfume. The smell is created by Sulphur-containing compounds, which are uncommon in most floral aromas, but have been found in the flowers of many plant species that specialize in bat pollination. Vampire bats do exist, but there are few ones close to none in most parts of the world.
BAT SPECIES
Bats are misunderstood creatures. The reputation they’ve earned through scary stories and myths doesn’t match their cute, furry appearance, or the important role these prodigious bug-catchers play in ecosystems worldwide. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
With more than 1,400 identified bat species, they are the second most diverse order of mammal, outnumbered only by rodents. Bats are traditionally divided into two broad categories, megabats and microbats, though these classifications have more to do with their behavior than their size. Microbats use echolocation to hunt live prey, while megabats generally do not echolocate and feed on fruit.
Scientists have discovered species that defy this classification system, though, and it’s no longer regarded as entirely accurate. In any case, bat species are wildly diverse, ranging from flying foxes with 5-foot wingspans to tiny species that fit in the palm of your hand. Jopestkil Kenya Bats Importance & True Facts About Bats Living.
A few common bat species are the big brown bat, the little brown bat, and the Mexican free-tailed bat.
List of bats species in Kenya Include:
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Eidolon helvum
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Epomophorus wahlbergi
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Rousettus aegyptiacus
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Rhinolophus deckenii
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Hipposideros caffer
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Macronycteris vittatus
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Triaenops afer Dobson
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