African forest buffalo | |
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At the San Diego Zoo | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Artiodactyla |
Family: | Bovidae |
Subfamily: | Bovinae |
Genus: | Syncerus |
Species: | |
Subspecies: | S. c. nanus |
Trinomial name | |
Syncerus caffer nanus (Boddaert, 1785) | |
The range in dark green | |
Synonyms | |
Syncerus nanus |
The African forest buffalo (Syncerus caffer nanus), also known as the dwarf buffalo or the Congo buffalo, is the smallest subspecies of the African buffalo. [1] It is related to the Cape buffalo (Syncerus caffer caffer), the Sudan buffalo (Syncerus caffer brachyceros), and the Nile buffalo (Syncerus caffer aequinoctialis). However, it is the only subspecies that occurs mainly in the rainforests of Central Africa and Western Africa, with an annual rainfall around 1,500 mm (59 in). [2] It has been proposed to represent a distinct species, Syncerus nanus. [3]
The African forest buffalo is a small subspecies of the African buffalo. Cape buffaloes weigh 425 to 870 kg (937 to 1,918 lb), [4] whereas African forest buffaloes are much lighter, weighing in at 250 to 320 kg (550–705 lbs). [1] Weight is not the only differentiation, however; this subspecies has a reddish-brown hide that is darker in the facial area. The shape and size of the horns distinguish African forest buffalo from the other subspecies. African forest buffalo have much smaller horns than their savanna counterparts the Cape, Sudan and Nile buffalo. [1] [5] Cape buffalo horns often grow and fuse together, but African forest buffalo horns rarely fuse.
African forest buffalo live in the rainforests of West and Central Africa; [2] however, their home ranges typically consist of a combination of marshes, grassy savannas and the wet African rainforests. Savannas are the area where the buffalo graze, while the marshes serve as wallows and help the animals handle insects. [6] African forest buffalo are very rarely observed in the unbroken canopy of the forests. [7] [8] They instead spend most of their time in clearings, grazing on grasses and sedges. [9] Consequently, their diet is primarily made up of grasses and other plants that grow in clearings and savannas. [10]
The mixture of habitats is essential for the African forest buffalo. Expansion and encroachment of the rainforest on the surrounding savannas and openings are major difficulties of maintaining the ecosystem. African forest buffalo enjoy old logging roads and tracks, where the forest is thinner and grass and other foods can grow. In these areas, African forest buffalo depend on the grass that is able to develop as a result of the areas that have been previously clear-cut. [11] In some areas park management staff burn off the savannas on a regular basis to keep the rainforest from growing onto the savannas and changing the ecosystem of the area. [12]
Large home ranges can be associated with less-productive habitats; [13] however, a larger area of open grassland has been observed to have a positive relationship with herd size. [14] Home ranges remain remarkably constant and stable year after year. The only documentation of the actual home range boundaries of these animals is relatively recent, so only time will tell how these boundaries remain over large lengths of time; however, studies have shown almost no movement in range boundaries from one year to the next. [1] [5]
Although the area included in a home range is relatively constant over time, the preferences in regard to what part of the range is most used shift with the seasons. From March until August, African forest buffalo spend most of their time in the forest, while from September through February, they favor the savannas and marshes. [5] [15]
African forest buffalo arrange themselves into herds, which help in defense against predators; however, they are not immune to assault. Among predators, the African leopard is the most common, but is generally only a threat to young buffaloes and will feast on them only when they have the opportunity. The Nile crocodile is the only predator which is capable of killing an adult buffalo. [12]
African forest buffalo have relatively small herds compared to the well-studied Cape buffalo. Cape buffalo can have herds of over 1,000 members; however, African forest buffalo stay in much smaller groups—as small as three and rarely over 30. If African forest buffalo are in a large group, they spend more time grazing, since there is less need to devote time to alert behavior. [16]
A herd of African forest buffalo typically consists of one or occasionally two bulls and a harem of adult females, juveniles and young calves. Unlike Cape buffalo bulls, African forest buffalo bulls remain with the herd continually, year round. On the other hand, Cape buffalo bulls stay in bachelor herds until the wet season, when young bulls join the females, mate, help protect the young calves and then leave. Animals usually remain in the same herd for their entire lives. Herd-switching in cows has been observed; however, this is not a common occurrence. [17] Herds can split into two groups for a short period of time before merging back together. [18]
African forest buffalo are relatively unaffected by seasonal cycles. However, in the wet season, herds are more spread out in the forest [18] [19] and these animals tend to use resting places based on sand during the wet season, but use dirt and leaves during the dry season. [8] Moreover, in open habitats such as clearings, herds are more aggregated when resting and are more rounded in shape than herds in forest habitats during the wet season. [20]
Bovines comprise a diverse group of 10 genera of medium to large-sized ungulates, including cattle, bison, African buffalo, water buffalos, and the four-horned and spiral-horned antelopes. The evolutionary relationship between the members of the group is still debated, and their classification into loose tribes rather than formal subgroups reflects this uncertainty. General characteristics include cloven hooves and usually at least one of the sexes of a species having true horns. The largest extant bovine is the gaur.
In Africa, the Big five game animals are the lion, leopard, rhinoceros, elephant, and African buffalo. The term was coined by big-game hunters to refer to the five most difficult animals in Africa to hunt on foot, but is now more widely used by game viewing tourists and safari tour operators. They are examples of charismatic megafauna, featuring prominently in popular culture, and are among the most famous of Africa's large animals.
The African buffalo is a large sub-Saharan African bovine. There are five subspecies that are recognized as being valid. Syncerus caffer caffer, the Cape buffalo, is the nominotypical subspecies, and the largest one, found in Southern Africa and East Africa. S. c. nanus is the smallest subspecies, common in forest areas of Central Africa and West Africa, while S. c. brachyceros is in West Africa and S. c. aequinoctialis is in the savannas of East Africa. The adult African buffalo's horns are its characteristic feature: they have fused bases, forming a continuous bone shield across the top of the head, referred to as a "boss".
The hartebeest, also known as kongoni or kaama, is an African antelope. It is the only member of the genus Alcelaphus. Eight subspecies have been described, including two sometimes considered to be independent species. A large antelope, the hartebeest stands just over 1 m at the shoulder, and has a typical head-and-body length of 200 to 250 cm. The weight ranges from 100 to 200 kg. It has a particularly elongated forehead and oddly-shaped horns, a short neck, and pointed ears. Its legs, which often have black markings, are unusually long. The coat is generally short and shiny. Coat colour varies by the subspecies, from the sandy brown of the western hartebeest to the chocolate brown of the Swayne's hartebeest. Both sexes of all subspecies have horns, with those of females being more slender. Horns can reach lengths of 45–70 cm (18–28 in). Apart from its long face, the large chest and the sharply sloping back differentiate the hartebeest from other antelopes. A conspicuous hump over the shoulders is due to the long dorsal processes of the vertebrae in this region.
Syncerus is a genus of African bovid that contains the living Cape buffalo (Syncerus caffer), including the distinct African forest buffalo.
A bovid hybrid is the hybrid offspring of members of two different species of the bovid family. There are 143 extant species of bovid, and the widespread domestication of several species has led to an interest in hybridisation for the purpose of encouraging traits useful to humans, and to preserve declining populations. Bovid hybrids may occur naturally through undirected interbreeding, traditional pastoral practices, or may be the result of modern interventions, sometimes bringing together species from different parts of the world.
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The African leopard is the nominate subspecies of the leopard, native to many countries in Africa. It is widely distributed in most of sub-Saharan Africa, but the historical range has been fragmented in the course of habitat conversion. Leopards have also been recorded in North Africa as well.
The blue wildebeest, also called the common wildebeest, white-bearded gnu or brindled gnu, is a large antelope and one of the two species of wildebeest. It is placed in the genus Connochaetes and family Bovidae, and has a close taxonomic relationship with the black wildebeest. The blue wildebeest is known to have five subspecies. This broad-shouldered antelope has a muscular, front-heavy appearance, with a distinctive, robust muzzle. Young blue wildebeest are born tawny brown, and begin to take on their adult coloration at the age of 2 months. The adults' hues range from a deep slate or bluish-gray to light gray or even grayish-brown. Both sexes possess a pair of large curved horns.
Sundevall's roundleaf bat, also called Sundevall's leaf-nosed bat, is a species of bat in the family Hipposideridae.
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The Angolan Scarp savanna and woodlands is an ecoregion located on the coast of Angola, an area with a variety of habitats and rich in wildlife including many endemic birds and animals.
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