This species is found in Central Africa, East Africa and southern Africa (it is broadly distributed across southern Africa). It has been recorded from Cameroon (Aellen 1952), Equatorial Guinea (Rio Muni), Gabon, Congo and Angola in the west, through southern Democratic Republic of the Congo and Rwanda, being distributed in East Africa from Uganda, Kenya and southern Somalia in the north, through Tanzania (including the island of Zanzibar), Zambia, Malawi and Mozambique into Zimbabwe, eastern and southern South Africa and Swaziland. There is a need to confirm the presence of this species in Cameroon and Equatorial Guinea. It ranges from sea level to around 2,000 m asl.

The Walberg's epauletted fruit bat can be found in Africa, anywhere south of the Sahara desert. These bats live in woodland and savannah areas, and prefer the edges of forests. During the summer, they migrate in large numbers to Taaween, in the Zoutpansberg district of South Africa, attracted by the ripening crop of guavas.

Biogeographic Regions: ethiopian (Native )

Wahlberg's epauletted fruit bats are volant creatures. They have a prominent keel on their sternum, which supports the flight muscles. The total body length is between 125mm and 250mm long, and the wing span in males is about 508mm. They weigh between 40 grams and 120 grams. Both the first and second digits of the foreleg are clawed. The face and head resembles that of a dog.

These bats are grayish brown, russet, or tawny in color. Air sacks are present on the necks of males. These sacks are used in food collection, and may aid in creating a megaphone effect of the calls used by males to attract females during courtship. The males have shoulder epaulets that are used in courtship displays.

White spots of fur are located at the top part of the base of the ear in both sexes. Scent glands are located at the places where the white ear spots and shoulder epaulets are found. The ear is simple and oval, forming an unbroken ring, with no tragus. These bats do not have a nose leaf. The tail is short, and sticks out of the uropatagium, which is very narrow in this species. They have a simple wing, when compared to other bat species. They are strong fliers, and travel as far as ten kilometers to find food. Their eyes are very large. Sight, as well as smell, are what these bats use most often to locate their surroundings. Their jaws are strong, and their teeth are adapted to a fruit diet. The cheek teeth are large and flat, just the right surface for chewing fruit.

Range mass: 40 to 120 g.

Habitat and Ecology

Systems

• Terrestrial

During the day, they live in hollow trees, underneath large leaves, and beneath the eaves of buildings. They often roost where there in considerable light. Every few days, they will move to a new roosting site. They roost in small groups containing mixed ages of males and females, the size of which range from three to one hundred individuals. They often choose the same spot to roost, at certain times of the year, for many consecutive years. While hanging from their feet in their roosts, they will isolate themselves from their neighbors by short distances. While roosting, they remain relatively quiet, and do not move very much. They make it a point to not intrude on each other's space.

Terrestrial Biomes: rainforest

These bats are frugivorous. They chew the fruit, swallow the juice, and spit out most of the pulp and seeds. They swallow some of the softer pulp, and some of the seeds. The swallowed food goes through the simple digestive tract, usually within a half an hour. They use several methods to get the fruit from the tree. They either bite the fruit while hovering; or they hang from a branch with one foot while using the other foot to hold the fruit while they eat it; or they chop the fruit from a branch by holding the fruit in their mouths, and making a twisting motion in flight until the fruit drops off of the stem. The structure of their lips and windpipe creates suction that helps them to suck the juices from softer parts of the fruit. They also chew flowers to get the nectar and juices. They feed on figs, mangoes, guavas, bananas, peaches, apples, papayas, and small berries. The smell of ripening fruit is what attracts them to their food source. Fruits are nutritious because they contain high quantities of carbohydrates. Many fruits contain fats, which are of benefit, as well.

Average lifespan

Status: captivity: 10.1 years.

Maximum longevity: 10.1 years (captivity) Observations: One specimen was still alive after 10.1 years in captivity (Richard Weigl 2005).

During the breeding season, the males use the shoulder epaulets as a part of courtship. This courtship behavior is called an arena, or Îlekâ, mating system. The males congregate at traditional sites, where they puff up their white shoulder patches, and begin using mating calls, in an attempt to get passing females to select them. The call used by the males to attract females combines four short chirps that range from 2.0 kHz to 7.5kHz, and is one second in duration.

Young are born singly, in most cases, but twins are occasionally seen. As she forages for food, the mother caries her offspring clinging to her chest. Females have one pair of mammae located on the chest. The male sexual organ resembles that of some primates. Mating occurs twice per year on a seasonal basis, with births occurring around the end of February, and the beginning of September. Gestation lasts from five to six months. Females are the only ones who rear the young. The males don't give assistance. Other bats from the same family, (Pteropus poliocephalis, Pteropus giganteus, and Rousettus aegyptiacus), recognize their young through vocalizations and olfaction. They nurse their own young, and do not scent mark them. By inference, it is assumed that the Walberg's epauletted fruit bat does the same for its young.

Average number of offspring: 1.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Species: 8
Species With Barcodes: 1

This species is in jeopardy from the human destruction of tropical forests. The practice of bat-banding also threatens their existence, if the banding injures the delicate flight membranes, and if the banding causes stress to the bat. The public's attitude toward bats needs to change, in order for these animals to survive. Education is the key toward changing the misconceptions that many people have. Bats are a unique and irreplaceable value to man and the ecosystems of the earth.

IUCN Red List of Threatened Species: least concern

Population

Population Trend

Major Threats

Conservation Actions

Control measures, in the form of poisoned fruit for bait, are sometimes utilized in areas where they feed extensively on cultivated fruit.

The seedlings of most tropical plant species will not grow and mature in the shade of the parent plant. Therefore, the seeds must be carried beyond the area where the parent plants are found. Fig seeds will not germinate unless the seeds pass through the digestive tract of a bat, or bird. These bats are an important agent of seed dispersal in the tropics. Although bats may at times be local pests of fruit crops, their value in the preservation of the rain forests, is critical. These bats travel to areas where the seeds in their droppings help to expand the rain forest acreage. These bats pollinate baobab (Adansonia digitata), an economically important tree in the African savannah.