Due to the critically endangered status and the decreasing number of Cross River gorillas around the world, keeping them in a captive environment allows these gorillas can thrive again. Do Gorillas live exclusively in the forest? Gorillas are divided into two main species – The western and Eastern Gorilla. However, they may sometimes turn aggressive towards humans when threatened. The Cross River gorillas are critically endangered. As the population dwindles, some organizations are working to protect the forests that they live in, preventing them from venturing out into local areas and losing food sources. Gorillas have a patchy distribution ranging across central, western, and eastern Africa. Why is the Cross River gorilla endangered? The Cross River Gorilla was classified as a distinct sub-species in the year 2000. They inhabit mountainous rain forests and bamboo forests at altitudes of 1,500 to 3,50… Are mountain Gorillas something special? Usually, they avoid “silverback” leaders that are stronger and focus on young individuals or offspring. Still, there is hope that this species will recover from these threats within the next 75 years, as long as continued efforts are made to preserve their habitat. Cross River Gorilla live in groups. Most of their day is spent eating. These gorillas have brownish-grey or black fur. The range of the eastern and western gorillas is separated by the Congo River. The habitat of the Cross River gorillas includes the mountainous forest between Nigeria and Cameroons. These herbivorous gorillas will search as far as they need to go for their nutrients, even outside of their typical foraging area to get what they need. Two species of gorillas live in central equatorial Africa. Cross River gorillas are scattered in at least 11 groups across the lowland montane forests and rainforests of Cameroon and Nigeria, an area of 3,000 square miles, or about twice the size of Rhode Island. They are usually found on the mountainous borders of Nigeria and Cameroon. The Cross river gorilla (scientific name: Gorilla gorilla diehli) is a subspecies of the western gorilla. The Cross River Gorilla (Gorilla gorilla diehli) lives in five small pockets of habitat in an area on the border of Nigeria and Cameroon. This is unusual. Gorilla Gorilla. The World Wildlife Organization has multiple partners within the Nigerian and Cameroon governments to protect certain areas. The female gorillas, after giving birth, breastfeed their babies and take care of them up until they are about three to four years of age. University of California Press, Berkeley, California, USA. "Cross River gorillas: A distinct subspecies, 10.1206/0003-0082(2000)3304<0001:TCRGAD>2.0.CO;2. The Cross River gorillas are social and live in family groups of 2 to 20 individuals. "The Cross River Gorillas (. A study published in 2007 in the American Journal of Primatology announced the discovery of the subspecies fighting back against possible threats from humans. A. Average adult male height: 165–175 cm. Their gestation period usually lasts 9 months. The Limbe Wildlife Center in Cameroon has been the only zoo to have one of these gorillas on display since 2007. Gorilla Journal 23. tropical and subtropical moist broadleaf forests, "Regional Action Plan for the Conservation of the Cross River Gorilla (, "World's rarest gorilla ready for its close-up", 10.1002/(SICI)1096-8644(1998)26+<207::AID-AJPA18>3.0.CO;2-Y. Cross River gorillas have an extremely limited geographic range. 1996. Located in the mountains across the borders of Cameroon and Nigeria, the cross-river gorillas is one sub specie of the western gorillas scientifically known as the Gorilla gorilla diehli. The group is usually led by a silverback male as the dominant leader. In Afi, gorillas travelled longer distances when consuming large amounts of fruit, while at Kagwene, the gorillas travelled shorter distances when … The Cross-river gorillas go by the scientific name “Gorilla gorilla diehli” and belong to the kingdom Animalia and class Mammalia. Adams, J. S., and T. O. McShane. Gorilla number: 250-300 . Ecology of Cross River gorillas (, Walsh, P.D., Tutin, C.E.G., Oates, J.F., Bailie, J.E.M., Maisels, F., Stokes, E.J., Gatti, S., Bergl, R.A., Sunderland-Groves, J. The Cross River gorillas are polygamous animals. Version 2013.1. Cross River Gorilla. However, the resting places change in the rainy season when they shift their nests to the top of trees. The nesting places are usually on the ground. There are populations in the Afi Mountains in Nigeria, the Mbe Mountains in Cameroon, in the Takamanda National Park in Cameroon, and in the Cross River National Park in Nigeria. The Cross River gorillas are usually peaceful animals. They also belong to the family Hominidae and genus gorilla. Many gorillas live in Africa along the forests and swamps. About 100 Cross River gorillas have since been recorded in Nigeria's Cross River State and about 200 in Cameroon in a transborder region of about … Population & distribution The Cross River gorilla is restricted to a small area of highland forest on the border of Cameroon and Nigeria. The cross river gorillas are most affected by poaching and there are currently … These animals are known to inhibit the most North and West regions. If this gorilla species makes it down to the lowlands, they will likely find themselves in an unsatisfactory situation with local farmers that harvest bananas and plantains. They are usually found at the borders between Nigeria and Cameroon. Some people have kept the Cross River gorilla as pets, which is a dangerous trade that impacts the ability to conserve the species. Do several species of Gorillas exist? They have cone-shaped heads, above which, rests a reddish crest. They "found several instances of gorillas throwing sticks and clumps of grass". Paul Matschie, in 1904, named the cross river gorilla a new species, though it has become increasingly rare. Bushmeat Trade and Primate Conservation around Cross River National Park. Seven Cross River gorillas including infants were pictured at the Mbe Mountains Community Forest in Cross River by the Wildlife Conservation Society in May and June.. Only 300 Cross River gorillas are known to live in the wild, making them the most endangered sub-species. Applying resource selection functions at multiple scales to prioritize habitat use by the endangered Cross River gorilla. The Cross River gorillas are known to be highly efficient in infant care and are known to care for their babies up until they are three to four years of age. Lowland gorillas live in the forests of central and western Africa in Equatorial Guinea, Angola, Cameroon, the Central African Republic, Congo, Gabon and the Democratic Republic of the Congo. Gorilla gorilla diehli. To be more specific, small populations are found in the Mbe Mountains in Cameroon, the Afi Mountains of Nigeria, Cross River National Park in Nigeria and Takamanda National Park in Cameroon. The word “gorilla” is rooted in the Ancient Greek word “Γόριλλαι.” The word refers to a “tribe of hairy women,” which is how Hanno the Navigator described the people on the west coast of Africa (which is now known as Sierra Leone). Still, the only time in recent history that these beautiful mammals have caused significant damage was in 2006. They tend to have redder or greyer fur than eastern gorillas. This restriction is most likely because humans … They inhabit an area that is about 300 square miles. The Cross River Gorilla lives in the mountainous region between Nigeria and Cameroons. WWF works to designate new gorilla sanctuaries, such as in Congo. The predators of the Cross River gorillas include crocodiles and large jungle cats. The Cross river gorilla (scientific name: Gorilla gorilla diehli) is a subspecies of the western gorilla. These gorillas have long arms and a prominent ridgeline, which offers a striking contrast to the flat face and wide nostrils. Where they live: Nigeria and Cameroon. cross river gorilla diet Cross River Gorillas eat more liana and tree bark throughout the year, and less fruit during periods of scarcity, than Western Lowland Gorillas. What are the predators of the Cross River gorillas? About 100 Cross River gorillas have since been recorded in Nigeria's Cross River State and about 200 in Cameroon in a transborder region of about 12,000 square kilometers (4,633 square miles). These gorillas are very social and usually live in groups of 2 to 20. The dominant male of the group usually mates with all the sexually mature females of his group. The gorillas can sometimes be found in lowland forests, but they tend to stay at higher altitudes. They are endemic to the Cross River region on the border of Nigeria and Cameroon, in Africa. Cross River gorillas are a subspecies of the western gorilla whereas mountain gorillas are a subspecies of the eastern gorilla. The Cross River Gorilla is one of the 25 most endangered primates worldwide. Divergence between the Western gorillas (Gorilla gorilla) and Eastern Gorillas (G. beringei) began between 0.9 and 1.6 million years ago. So which breeds fit these needs? Characteristics: The rarest species of great ape in the world, Cross River gorillas are similar in appearance to western lowland gorillas, but have a different shaped skull. Number remaining: Fewer than 300. Where they live: Nigeria and Cameroon. They may attack humans with branches, stones, and herbs if provoked. Average adult male weight: 140–200 kg (310 lb-440 lb). These cross river gorillas live in the cross river region which is called the biodiversity hotspot (One of the 34 hotspots in the world according to Conservation International). This habitat of theirs is called the Cross River basin. 7 Dunn. Cross River gorillas are forest dwelling creatures. The Cross River gorillas reach maturity around ten years of age. Gorillas move every single day for food and water and to look for a place to sleep that night- anew next is built every evening. Cross River gorillas are hard to find in the wild, in part because their population is so small. These gorillas live in the mountainous region between Nigeria and Cameroons.The Cross River gorillas are herbivores and usually feed on branches, nuts, leaves, and berries that they hunt for from different plants. 19(8), 943-955. Gorillas can also live in other types of habitats including dense old-growth forests, moun… During this time, they do not reproduce again and give their full attention to their newly born baby. These gorillas have brownish-grey or black fur. A group of gorillas can have a territory of up to 16 square miles (41 square kilometers), according to National Geographic. Some Gorillas live in the very lowlands while others are in the extreme elevations of the mountains. A group usually consists of the dominant male, six to seven females, and their children. (5 ft 5 in-5 ft 9 in). Endemicmeans this is the only place in the world they can be found. 2008. 25 October 2013, Ferris S., 2005 Chapter 7: Western Gorilla (, March 1957; Critchley, 1968; Harcourt et al., 1989; Oates et al., 1990; JLG, unpublished data, Etiendem D.N., Funwi-Gabga N., Tagg N. Hens L. Indah E.K., 2013. The Cross River Gorilla needs much more study before we can fully understand it. The Cross River gorillas are the most endangered great apes in Africa. These gorillas usually take care of their babies until they are three or four years of age. It lives in a region between Nigeria and Cameroon, just at the Cross River basin. Despite not hosting these animals, many zoos and sanctuaries offer important facts about the Cross River gorilla to encourage patrons to support conservation. IUCN RED LIST of Threatened Species. Even though this may seem overwhelming to the area, some local farmers have remarked that they are far less destructive to their land than other animals with a smaller stature, including wild pigs. The gorilla, who was named Nyango, passed away on October 10th, 2016 as the result of illness, and there are no other reports of zoos that currently hold these mammals. Cross River Gorillas usually live in groups of four to seven individuals, although larger groups do exist. Leopards rarely prey on adult male gorillas, but they do it specifically of western lowland gorillas (Gorilla gorilla gorilla). "The Cross River Gorillas: A Distinct Subspecies, "Remote Sensing Analysis Reveals Habitat, Dispersal Corridors and Expanded Distribution for the Critically Endangered Cross River, "World's Most Endangered Gorilla Fights Back", "Nigeria Values Safety of Gorillas Over New Superhighway", "Historical sampling reveals dramatic demographic changes in western gorilla populations", "Rare gorillas in Nigeria captured on camera with babies", "Primates in Peril: The World's 25 Most Endangered Primates 2012– 2014", "Traditional Knowledge Systems and the Conservation of Cross River Gorillas: a Case Study of Bechati, Fossimondi, Besali, Cameroon", "New National Park Protects World's Rarest Gorilla", "A GIS Habitat Map for the Kagwene Gorilla Sanctuary, Cameroon", Cross River Gorilla Species Profile from the African Conservation Foundation, https://en.wikipedia.org/w/index.php?title=Cross_River_gorilla&oldid=992687806, IUCN Red List critically endangered species, All Wikipedia articles needing clarification, Wikipedia articles needing clarification from October 2013, Creative Commons Attribution-ShareAlike License. The foods found in the diets of the Cross River gorillas mainly consist of leaves, nuts, berries, and liana which is a woody vine. The majority of these gorillas are in Nigeria and Cameroon, spread out amongst no less than 11 families. THE PROBLEM. Some hunters will kill the parent of the baby gorilla to take them to sell, as they are easy to handle at a small size. Average adult female height: 140 cm (4 ft 7 in). The U.S. is helping to save an elusive and endangered species of gorilla in West Africa. Sawyer, S. (n.d). Apart from that, they are also found in the Takamanda National Park of Cameroon and the Cross River National Park in Nigeria. Good candidates can’t be frequent, loud barkers that drive the neighbors mad. They live in the forests of East and Central Africa. The Cross River gorillas have a slender yet short build, paired with light-colored hair. They usually give birth only once in four years or so because the level of infant care is very high in these Cross River gorillas. Mountain gorillas live in Rwanda, Uganda and the Democratic Republic of the Congo, on green, volcanic mountains. The face usually has no fur, just like the hands, and feet. However, the face, hands, and feet have no fur at all. Due to aggressive hunting activities, there are only about 200-300 Cross River gorillas left in the world. Others live in the mountain region like in Virunga Mountains. Folia Primatol 2013;84:18–31 (DOI:10.1159/000345853), McFarland, K. L. 2007. (6) Gorillas spend most of their time on the ground, usually walking on all fours, on the knuckles of their hands, although they can walk just on the two hind legs. The Congo River Basin has plenty of green, lush jungles which facilitate the survival of the gorillas. Most of these gorillas are found at a height of 1500 meters to 3500 meters in the mountainous rain forests and bamboo forests. Wikipedia, Available here: https://en.wikipedia.org/wiki/Cross_River_gorilla, New England Primate Conservancy, Available here: https://www.neprimateconservancy.org/cross-river-gorilla.html, Gorillas World, Available here: https://www.gorillas-world.com/cross-river-gorilla/, Cross Gorilla Programme, Available here: https://crossrivergorilla.org/diet/, WWF, Available here: https://www.worldwildlife.org/species/cross-river-gorilla#, Study.com, Available here: https://study.com/academy/lesson/cross-river-gorilla-reproduction-facts.html. Since these gorillas are critically endangered due to hunting and other human activities like deforestation, there are only about 200 to 300 Cross River gorillas left in the world. Appearance. Like all the other living beings on the planet, the Cross River gorillas are also an important part of the ecosystem. This page was last edited on 6 December 2020, at 16:05. The continued fragmentation of Cross River Gorilla habitat across a large, complex area, together with the threat from hunting and the small number of gorillas remaining, has led to its critically endangered status. The Cross River gorillas usually live for 35 to 50 years. When encountered by humans, gorillas usually flee and rarely charge. The lifespan of these gorillas is usually 35 to 50 years. The most endangered gorilla subspecies, only around 300 Cross River gorillas are thought to exist, living in an isolated region along the border between Nigeria and Cameroon. Red finches can form flocks of over 100 birds, The muskrat can stay underwater up to 17 minutes at a time, What are the best dogs for city living? Average adult female weight: 100 kg (220 lb). However, sources suggest that they also indulge in recreational activities like grooming. There are only 200 to 300 cross river gorillas left in the world. Right now, the threat of becoming infected with Ebola and of being hunted is enough to make recovery an impossibility in the short-term. Apart from their fragmented families, another trade has become highly lucrative and a major threat to the species – selling this species as pets. However, they also face a lot of threats – both from other animals as from human beings. Known as the world’s strangest gorillas, the Cross River gorillas are small in population and are rarely ever seen. Amazing Facts About the Cross River Gorilla The Cross River Gorilla is a subspecies of the Western Gorilla. Number remaining: Fewer than 300. The male leader is usually responsible for taking care of the females and children of the group and also often makes the key decisions of the group like the feeding and nesting sites. The gestation period usually lasts about nine months – which is also very similar to humans. Human activities like deforestation also pose threats to these gorillas. In the Cross River region, the forests are tropical and subtropical. Since gorillas live in tropical climates, their remains quickly disappear, consumed by scavengers and insects. Indah E.K. Ln: IUCN 2013. They belong to the phylum Chordata and order Primates. Efforts are therefore being made to make them live in designated places so that they could thrive in protected environments since the Cross River gorilla is decreasing still. Apart from the dominant leader, there are 6-7 females and their children. Let’s […] Read More, The cross river gorilla is a subspecies of the. Cross river gorillas live near human settlements in the congo basin. Where do Gorillas live? There are only about 300 Cross River gorillas left in the world, making them the rarest subspecies of gorilla, or indeed any great ape. The Cross River gorillas are the most endangered great apes in Africa. This subspecies is the world’s strangest gorilla; rarely seen and with a small population. The group leaders who are dominant males often have a silver patch on their backs – which is also why they are called silverbacks. They also exist in the Afi mountains in Nigeria and the Cameroons’ Mbe mountains. The Cross River gorillas sexually mature at 10 years of age and usually have babies every 4 years. Additionally, they must be comfortable in smaller spaces and able to saunter through crowded city streets on a leash — or in a bag — without freaking out. Gorilla gorilla diehli. They thrive in tropical and subtropical forests that run across the equatorial belt. The women were described as being “savage” and “hairy.”. The myth of wild Africa: conservation without illusion. They have also been endangered because of human activities like deforestation. To view them in a zoo, there are many reserves and sanctuaries to host them, like the Afi Mountain Wildlife Sanctuary. They mostly live in highland forests. Paul Matschie, in 1904, named the cross river gorilla a new species, though it has become increasingly rare. What threats do gorillas face? Their behavior is very similar to other gorillas. Their heads are cone-shaped, and they have a red-colored crest on their heads. Are Cross River gorillas carnivores, herbivores, or omnivores? Except for subtle differences in skull size (their heads are smaller relative to body size) … The Cross River Gorilla lives in the mountainous region between Nigeria and Cameroons. This event is believed to have been the result of how close the farms were to the forest homes of the gorillas. Characteristics: The rarest species of great ape in the world, Cross River gorillas are similar in appearance to western lowland gorillas, but have a different shaped skull. Eniang, E., December 2001. They tend to have redder or greyer fur than eastern gorillas. Usually, these gorillas give birth to single babies and pairs are a rare occurrence. Cross River gorillas are the most endangered great ape in Africa. These gorillas are usually known to be peaceful. Their dark eyes are concealed by fur, which is often either black or brownish gray. Cross river Gorillas are very closely related to all gorilla species, and to chimpanzees, and they share over 98% of their DNA with humans. The Afi study group usually consists of 18 gorillas, which roam in about 30km2, a larger range than is usual for Western Lowland Gorillas. The Gorillas of the Cross River are the most western and northern forms of the guerrillas and are confined to the forests and mountains of the Cameroon-Nigeria border area along the banks of the Cross River. It is, therefore, the subspecies that inhabits the most north and west regions of all. Cross River gorillas are herbivores and feed on branches, leaves, nuts, and berries that come from several different plants. The nesting happens in forests after these gorillas build nests with branches and leaves. The Cross River gorilla is threatened by humans as they were hunted extensively in the past – which is also why their numbers are pretty low. The Criss River gorillas are endangered mainly because they were victims of severe and aggressive hunting in the past few years. This space is called the Cross River basin. The Cross River gorilla is usually found in montane rainforest between 1,500 and 3,500 meters and in bamboo forest from about 2,500 to 3,000 meters. ... Distribution of the Cross River gorilla (© Angela Meder, with information from Rich Bergl). The Cross River gorillas are often eaten by crocodiles and large forest cats. Cross River gorillas are found in the mountains, highlands and forests along the border between Cameroon and Nigeria. Cross River gorillas are herbivores and their diets usually comprise branches, leaves, nuts, and berries that they obtain from various plants. 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