Mountain anoa are found on the island Sulawesi, which is a province of Indonesia. Sulawesi contains 1,533,698 ha land, and is found between 0º30"and 4º3" North Latitude and 121º127" East Longitude. The mountain anoa occupies the mountainous areas of the island, with a range in elevation from 500 to 1000 m. Mountain anoa are also thought to occupy the nearby island of Buton. (Massicot, 2004; "North Sulawesi, adventures beyond dreams", 2001)
Mountain anoa are found in the undisturbed montane forest regions of Sulawesi. Since Sulawesi is based around the equator, it has both rainy and dry seasons. The rainy seasons last from November to March, and the dry seasons run from April to October. Sulawesi has both active and non-active volcanoes, which provides for very rich soil. This soil produces many agricultural crops: rice, corn, nutmeg, cocoanut, clove, vanilla, and vegetables. (Massicot, 2004; "North Sulawesi, adventures beyond dreams", 2001)
Mountain anoa look like deer, but are actually water buffalo. They weigh between 150 and 300 kg. Mountain anoas have a woolly coat that is a dark brown or black in color, but changes between February and April after they molt. After molting, the wooly underfur of the animal is shed, and light spots appear on the head, neck, and limbs. The head develops white spots on each side of the cheek, while the front side of the neck develops a crescent shaped light spot. Light spots also develop right above the hooves. The fur on the neck becomes shorter, while long hairs remain on the body. (Bartikova and Dobroruka, 1910; Massicot, 2004)
Mountain anoas also have horns. These horns are flat in the front, but become triangular from the mid-section to the ends. (Bartikova and Dobroruka, 1910)
There is not enough information available on this topic. These animals appear to associate in male-female pairs, though, and so are probably monogamous. (Massicot, 2004)
Mating in mountain anoa occurs year round, with one offspring born to a female per year. Gestation is about 275 to 315 days. Although B. depressicornis), weans its offspring around 6 to 9 months. This species becomes sexually mature at two years. (Massicot, 2004; Miller, 2002)are usually solitary animals, they will form a herd when cows are about to give birth. Not a lot of information is known about this species, but a similar species, the lowland anoa (
Mountain anoa form herds when a female is about to give birth. Most bovids are precocial, able to walk around after their mother shortly after birth, and the mountain anoa ia probably not an exception. As is the case for all mammals, the female provides her young with milk. She is also grooms and protects her young. Females in a similar species, lowland anoa, wean their offspring anywhere between 6 and 9 months. (Massicot, 2004)
The role of males in the parental care of this species has not been reported.
Little information is known about the lifespan of mountain anoa. The lowland anoa, however, lives to be 20 years in the wild, and 31 years in captivity. (Miller, 2002)
Mountain anoa live in the moutainous areas of Sulawesi, and are thought to associate in pairs. At times, they will form herds, but only when a cow is about to give birth. Moutain anoa prefer undisturbed forests, and do not adapt well to human disturbance. (Massicot, 2004)
The home range of these animals has not been reported.
There is not enough information on this topic. However, a few generalizations can be made based on the sort of animal mountain anoas are.
Because the species is diurnal, these animals probably have well developed vision. It is likely that they communicate in some ways with visual signals. Tactile communication is probably important, especially between mates and between a mother and her young. Scent cues are not unknown among bovids, and so there may be information transferred about individual identity through smell. These animals probably also make some vocalizations, although they have not been reported.
Not a lot of information is known about ecosystem roles of mountain anoas, since they have not been studied in depth. Their close relative, the lowland anoa, feed on forest understory growth, affecting plant communities. It is likely that mountain anoas are similar in this respect. (Massicot, 2004)
Natives to Sulawesi use mountain anoas for their hides, meat, and horns. Humans also benefit from the role mountain anoa play in keeping the forest understory under control. Mountain anoa are also important for ecotourism. (Massicot, 2004; "North Sulawesi, adventures beyond dreams", 2001)
The military tends to shoot these animals. The purpose for this is not known, but one hypothesis is that mountain anoas are a threat when the military is in the forest. Lowland anoas, a similar species, have been known to cause injury and death to keepers, if the zookeepers get too close to the young. Mountain anoas might also be dangerous in the wild. (Massicot, 2004)
The current population of mountain anoa is somewhere between 3000 and 5000 animals. The population has been in decline since the early 1900's, due to habitat loss, hunting, and shooting by the military. This species does not adapt well to humans, and as the island of Sulawesi becomes more populated, the decline in mountain anoa populations is inevitable. They are listed on Appendix I of CITES and listed as Endangered by IUCN. (Massicot, 2004)
Nancy Shefferly (editor), Animal Diversity Web.
Amy Schilz (author), University of Wisconsin-Stevens Point, Chris Yahnke (editor), University of Wisconsin-Stevens Point.
uses sound to communicate
having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.
uses smells or other chemicals to communicate
humans benefit economically by promoting tourism that focuses on the appreciation of natural areas or animals. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals.
animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.
union of egg and spermatozoan
an animal that mainly eats leaves.
A substance that provides both nutrients and energy to a living thing.
An animal that eats mainly plants or parts of plants.
animals that live only on an island or set of islands.
offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).
having the capacity to move from one place to another.
This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.
the area in which the animal is naturally found, the region in which it is endemic.
found in the oriental region of the world. In other words, India and southeast Asia.
reproduction that includes combining the genetic contribution of two individuals, a male and a female
one of the sexes (usually males) has special physical structures used in courting the other sex or fighting the same sex. For example: antlers, elongated tails, special spurs.
associates with others of its species; forms social groups.
uses touch to communicate
Living on the ground.
uses sight to communicate
reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female.
breeding takes place throughout the year
PATA North Sulawesi. 2001. "North Sulawesi, adventures beyond dreams" (On-line ). PATA. Accessed 11/25/02 at http://www.north-sulawesi.com/sul_info.html.
Bartikova, J., J. Dobroruka. 1910. Some external characteristics of the ountain anoa, Bublaus quarlesi. Lynx, 15: 58-62.
Heined, J. 1996. Status and protection of Asian wild cattle and buffalo. Conservation Biology, 10 (4): 931-934.
Massicot, P. 2004. "Animal Info-- Mountain Anoa" (On-line). Animal Information Pages. Accessed March 30, 2004 at http://www.animalinfo.org/species/artiperi/anoaquar.htm.
Miller, D. 2002. "Bublaus depressicornis" (On-line ). Animal Diversity Web. Accessed 11/25/2002 at http://animaldiversity.ummz.umich.edu/accounts/bubalus/b._depressicornis$narrative.html.