african clawless otter lifespan

They have a broad, flattened brain case and a small sagittal crest. MORE IN OTTER CATEGORY. They range through most of sub-Saharan Africa, except for the Congo River … Sometimes the otter builds these by digging up to nine feet underground, below the water level. Get access risk-free for 30 days, They range through most of sub-Saharan Africa, except for the Congo Riverbasin and arid areas. Females have two pairs of mammary glands on their abdomen. African clawless otters sometimes live in saltwater areas, such as beaches on the coast, but only if they also have a source of freshwater. Parker, D. 2005. Litters range in size from 1 to 3 pups, but as many as 5 pups per litter have been reported for animals in captivity. In South Africa we have two otter species; the Cape clawless otter (Aonyx capensis capensis), a subspecies of the African clawless otter (Aonyx capensis), and the spotted-necked otter (Hydrictis maculicollis).Both of these species have an IUCN ranking of Least Concern with the latter being much smaller … African clawless otter Lifespan, ageing, and relevant traits Maximum longevity 14.2 years (captivity) Source ref. Otters are ammals that appear in the Jungle Emperor Universe 1 Appearance 2 Information 3 In the Universe 4 See also African Clawless Otters are the great swimmer they have brown and white fur, log whiskers, and they eat fish,crabs, crayfish andfrogs. It is associated with freshwater habitat. Distribution of the African Clawless Otter (Aonyx capensis) Data based on Otters of the World (IOSF 2015) More information on the African Otters Group. Lauren has taught intermediate reading in an English Language Institute, and she has her Master's degree in Linguistics. They are characterized by partly webbed and clawless feet, fr… Convergent in birds. at http://dx.doi.org/10.3377/004.044.0204. African clawless otters are found near permanent bodies of water in savannah and lowland forest areas. However, scientists have been able to determine that their population is slowly declining. Lifespan/Longevity. Earn Transferable Credit & Get your Degree. They also squeal, moan, and mew. (Larivière, 2001; Somers and Nel, 2003), African clawless otters are primarily carnivores. Contributor Galleries They have a head that is larger than the other species of Otters which is a distinguishing characteristic when you see them in photos or books. Accessed Aonyx capensis and A. capensis congica are sympatric in Uganda and Rwanda. Create an account to start this course today. Given their wide range and the fact that they mostly live alone, it is difficult to know the exact population of African clawless otters. (Larivière, 2001; Nel and Somers, 2007; Somers and Nel, 2003), African clawless otters have home ranges from 4.9 ha to 1062.5 ha. Log in here for access. African clawless otters have also been known to eat ducks, geese, coots, swans, dragonfly larvae, mollusks, reptiles, small birds, and shrews. In addition, they have dexterous hands which are used to search for food, grab prey and turn over rocks. (Larivière, 2001; Nel and Somers, 2007), Little is known about the mating system of Aonyx capensis. Otters are animals that appear in The Lion Guard. African clawless otters are occasionally viewed as agricultural pests as they also sometimes kill poultry. (Nel and Somers, 2007; Somers and Nel, 2003), Little is known of parental care in African clawless otters. (Larivière, 2001), African clawless otters are solitary and can be found in both freshwater and marine habitats. Daniel Kowalsky (author), University of Michigan-Ann Arbor, Phil Myers (editor), University of Michigan-Ann Arbor, John Berini (editor), Animal Diversity Web Staff. African clawless otters are found near permanent bodies of water in savannah and lowland forest areas. Least adapted of all otters to aquatic way of life and has short fur providing less insulation. Diet in relation to prey of Cape clawless otters in two rivers in the Western Cape Province, South Africa. Accessed The diet of Cape clawless otters at two sites along the Bloukrans River, eastern Cape Province, South Africa. study However, human-induced habitat change is a potential threat to some local populations. In fact, there are a number of otter species throughout Africa, including the African clawless otter. The African clawless otter is Africa’s most widely distributed otter, from Senegal, through most parts of West Africa as far as Ethiopia, and in the south to South Africa. and across multiple seasons (or other periods hospitable to reproduction). Daytime is spent sleeping in burrows or dens. Pups are born altricial but open their eyes and leave their den after 16 to 30 days, and weaning occurs by 45 to 60 days after birth. | {{course.flashcardSetCount}} The African Clawless Otter is the second largest of all freshwater species. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Eurasian Otter (Lutra lutra) Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. having body symmetry such that the animal can be divided in one plane into two mirror-image halves. South African Journal of Wildlife Research, 30/2: 85-92. the business of buying and selling animals for people to keep in their homes as pets. The otter is brown with smooth and thick fur, but light-colored fur may be prominent on their face, neck, belly and ears. To unlock this lesson you must be a Study.com Member. They can be found in a variety of habitats, including mangroves, beaches, and even desert-like areas. (Larivière, 2001; Nel and Somers, 2007; Somers and Nel, 2003), African clawless otters are occasionally eaten by Nile crocodiles and fish-eagles. National Science Foundation The scientific name for this species is Aonyx capensis, and it is also called the Cape clawless otter. offspring are produced in more than one group (litters, clutches, etc.) A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Scientific Name: Aonyx capensis. However, they usually stay within a much smaller section of this. the area in which the animal is naturally found, the region in which it is endemic. The Cape clawless otter is the second-largest freshwater species of otter. Life Expectancy: Up to 11 Yrs (in Captivity) Main Characteristics African Clawless Otters have a body length between 73 and 95 cms (29 - 37 inches), a tail length between 41 and 67 cms (16 - 26 inches) and they weigh between 10 and 16 kgs (22 - 35 lbs). Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Small crabs are eaten while the otter is perpendicular to the water’s surface, and large crabs are eaten while the otter lies on its back in order to catch pieces of food falling from its mouth. Synapomorphy of the Bilateria. 's' : ''}}. Mothers nurse their pups until they are 45 to 60 days old. Though mostly solitary, family groups have also been observed along the rivers of Cameroon (Kingdon, 1982). The African clawless otter is the most abundant otter species in Africa. African clawless otters also dive for fish. Help us improve the site by taking our survey. As a result, they are listed as near-threatened, which means they are in danger of becoming threatened in the near future. Their habitat ranges can be anywhere from three square miles, up to as much as 34 square miles. Habitat loss and degradation (when habitat quality is damaged, such as by pollution), are serious concerns. Select a subject to preview related courses: This species does have natural predators, such as the Nile Crocodile, pythons and fish eagles. 2004. Biology Lesson Plans: Physiology, Mitosis, Metric System Video Lessons, Lesson Plan Design Courses and Classes Overview, Online Typing Class, Lesson and Course Overviews, Airport Ramp Agent: Salary, Duties and Requirements, Personality Disorder Crime Force: Study.com Academy Sneak Peek. ANIMAL LIFE EXPECTANCY live longer live better. They are clawless except for small grooming claws on hind digits 2, 3, and 4. rainforests, both temperate and tropical, are dominated by trees often forming a closed canopy with little light reaching the ground. Scientific Name: Enhydra lutris. They possess a pair of anal scent glands are used for scent-marking. Burrows typically contain a nest made of grass or other vegetation. For more information about this small creature, read or watch the lesson titled African Clawless Otter: Habitat, Population & Lifespan. flashcard set{{course.flashcardSetCoun > 1 ? They don't range evenly throughout their territory. Young African clawless otters begin independent life at the age of one year. at http://dx.doi.org/10.1644/1545-1410(2001)671<0001:AC>2.0.CO;2. (Larivière, 2001) Range lifespan Status: wild 10 to 12 years; Range lifespan Status: captivity 15 (high) years; Typical lifespan Status: wild 10 to 14 years; Average lifespan Status: captivity 15 years; Behavior The purpose of different vocalizations is not well understood. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia. It occurs in any large area of suitable habitat … Food habits of coexisting Cape clawless otter and spotted-necked otter in the KwaZulu-Natal Drakensberg, South Africa. They weigh between 10 and 22 kg. They are also killed in some areas because they eat chickens, or because they eat the fish that people depend on for their livelihood, and- are therefore seen as competition. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. 2009. (Larivière, 2001; Nel and Somers, 2007), African clawless otters are the largest Old World otter species and 3rd largest species of otter overall. Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes). Life history … 2003. They become independent and sexually mature by 1 year old. At birth, pups weigh about 200 g and can grow to more than 1,400 g within 14 days. These otters are most active during dawn and dusk (i.e., crepuscular). Decisions Revisited: Why Did You Choose a Public or Private College? Spraints are commonly found surrounding dens and occur most frequently during the mating season. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. As with most animals, their lifespan in captivity is longer. Services. As you might expect, the African clawless otter lives in Africa. © copyright 2003-2020 Study.com. March 14, 2011 African clawless otters in Nigeria and Cameroon are listed under CITES Appendix I, while all others are listed under Appendix II. The African clawless otter lives in dens, or cave-like shelters. In fact, it can be found in nearly every country across the African continent, including Southern, Eastern, and Western countries. Category: Otter. This material is based upon work supported by the 2010. Lifespan: 20 years: Conservation Status: Least Concern: Description. Did you know… We have over 220 college They have nimble forefeet with opposable thumbs. But sea otters have recorded living up to 25 years. South Africa, which has an abundant crab population, is home to an estimated 21,500 African clawless otters. Hoffmann, M. 2010. Their tail measures 465 mm to 515 mm long and is typically stout and tapered. African Clawless Otter is found in the Afrotropics. (Larivière, 2001), African clawless otters are predators of crabs, fish, frogs, and insects. It's not exactly clear why the African clawless otter isn't common in the Congo, but there are other types of otters in that region. DNA work by Koepfli & Wayne (1998 & 2003) indicated that the Asian small-clawed otter is a sister species to the African clawless and Congo clawless otters. These otters prefer shallow water with thick reed beds, which are home to several favorable prey such as crab and fish. Animal Life Expectancy ... LIFE SPAN: 23 years. On land, African clawless otters take shelter in underground burrows, under rocks, roots, or dense vegetation. Aonyx congica (African clawless Otter) found in Central Equatorial Africa, are least adapted aquatically while Enhydra lutris , having completely severed their dependence on freshwater, are a totally marine species, so much so that they even give birth in water. Young African clawless otters spend a significant amount of time playing and have been observed play-fighting, swimming, sliding on rocks, playing with their food, and even fetching small pebbles thrown into the water before they hit the ground. Closely related to African Clawless Otter and very similar. courses that prepare you to earn The average life span of the otter is 10-12 years. They grab prey with their forefeet and bring it to the surface to eat. In freshwater habitats, their diet consists primarily of crabs (Potamonautes); however, they also eat frogs (Xenopus), insects (Coprinae, Cyclorhapha, Dytiscidae, Nepidae, Odonota, Scarabaeidae), and various species of fish, which make up more of the diet during winter when they are slowed by cold temperatures and are easier to catch. Sciences, Culinary Arts and Personal Movement patterns and home range of Cape clawless otters (Aonyx capensis), affected by high food density patches. IUCN Red List of Threatened Species. Congo Clawless Otter (Aonyx congicus) Closely related to African Clawless Otter and very similar, the Congo Clawless Otter has silver tips to the end of hairs on the neck and head and dark patches of fur between the eyes and nostrils. Dives can last from 6 to 49 s, averaging 18 s per dive. They are agile swimmers that can often escape potential predators while in the water. Sam The African Clawless Otter Bronx Zoo zoologist observing Sam, the African clawless otter, soaking in ice water, Wayne, New Jersey, April 1971 (Photo by Nina Leen/The LIFE Picture Collection via Getty Images) Dens are never farther than 50 m from shore or 15 m from freshwater. African zoology, 44/2: 159-170. Not sure what college you want to attend yet? The Congo Clawless Otter (Aonyx congicus) (Mustelidae: Lutrinae): A Review of Its Systematics, Distribution and Conservation Status. Distribution and habitat choice of Cape clawless otters, in South Africa. {{courseNav.course.topics.length}} chapters | Most of their time is spent in a smaller core area ranging from 1.1 ha to 138.9 ha. To learn more, visit our Earning Credit Page. In this lesson you will learn about its habitat, including geographic range, its population, and lifespan. Otter pelage consists of two kinds of hair. Despite its name, this species is not completely clawless. More aquatic than other otters from Africa, its fully webbed paws have sharp, well-developed claws. Enrolling in a course lets you earn progress by passing quizzes and exams. forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality. The floor of the den is often lined with vegetation. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. 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. Jacques, H., G. Veron, F. Alary, S. Aulagnier. In addition, otters are still hunted, though some of them live in protected areas. The African clawless otter (Aonyx capensis), also known as the Cape clawless otter or groot otter, is the second-largest freshwater species of otter. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Compared to the majority of otter species that have a claw on every toe, this counts as clawless. Breeding may occur during any season, w… As the name suggests, these Otters don’t have claws. It is also one of the larger otter species, averaging about 45-60 inches (a little more than four feet) from its nose to the tip of its tail. If they do not encounter any of these threats, wild African clawless otters can live to be 10-12 years old. Marine inhabitants also eat crab, Cape rock lobsters, and abalone. and career path that can help you find the school that's right for you. After hunting bouts they may exit the water and dry off or spend time playing. African clawless ot... Asian Small-clawed ... Eurasian otter. {{courseNav.course.mDynamicIntFields.lessonCount}} lessons Silver tips to the end of hairs on the neck and head and dark patches of fur between the eyes and nostrils. 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A terrestrial biome. having markings, coloration, shapes, or other features that cause an animal to be camouflaged in its natural environment; being difficult to see or otherwise detect. Individuals are known to live for 132 months and can grow to 19322.22 g. They are semi-aquatic, and always have a source of freshwater in their environment, even the ones that live in saltwater areas, such as along the coast. It teaches you about: The predators of this otter Pups reach independence by the end of their 1st year. Inside its short, broad muzzle are relatively small teeth, which are adapted for catching fish instead of the crustaceans that the clawless otters eat. Giant otter… They swim by using their hind legs and tails for propulsion while using their tails as rudders. Their bi-colored pelage helps camouflage them with in the water and on land. Shallow water, approximately 1.5 m deep, is preferred for hunting. However, it is declining, and so they are listed as near-threatened. Common Name: African clawless otter. the nearshore aquatic habitats near a coast, or shoreline. Life stages of the African Clawless Otter . In other cases, they might use existing shelters made naturally from plants, roots, or rocks. chemicals released into air or water that are detected by and responded to by other animals of the same species. Somers, M., J. Nel. Study.com has thousands of articles about every Small fish are eaten in the water, and large fish are brought to shallow water or the shore for consumption. Its scientific name is Aonyx capensis, and they are also called Cape clawless otters. Disclaimer: The only otters seen so far is a dull brown, with a white … The number of crabs in an area determines how many otters live there. It is very silky in appearance as well as to the touch. In marine habitats, the diet of African clawless otters is mainly composed of fish. Precipitation is typically not limiting, but may be somewhat seasonal. Otters are mainly active around dawn and dusk, being, what is … (Larivière, 2001), African clawless otters are hunted for their pelts and other body parts, and they are occasionally kept as pets. credit-by-exam regardless of age or education level. 2000. mainly lives in oceans, seas, or other bodies of salt water. Dens are used for resting, playing, eating, defecating, and giving birth and are shared by multiple otters. On land, these otters either walk slowly or trot like a seal, sometimes walking over 7 km between bodies of water. They also occasionally use existing natural dens made of plants, roots, or rocks. There are no known ectoparasites. Perrin, M., C. Carugati. Anyone can earn (Hoffmann, 2010). Topics credit by exam that is accepted by over 1,500 colleges and universities. The Animal Diversity Web is an educational resource written largely by and for college students. In the wild, African clawless otters might live 10-12 years and in captivity they can live up to 15 years. The African clawless otter, or Cape clawless otter, is a fascinating species. Otters have been a … Area where it is very silky in appearance as well as anterior posterior. Earn progress by passing quizzes and exams have two pairs of mammary glands on their abdomen threatened in the and. Mostly nocturnal, but what about otters however, it is endemic span factor not well understood able to that! About its habitat, including the African clawless otters are solitary and can grow more! Morris, G. Anderson, G. Anderson, G. Veron, F. Alary, S., T.,. ( Aonyx congicus ) ( Mustelidae: Lutrinae ): a Review of its Systematics, Distribution and Status! Otters do not encounter any of these threats, wild African clawless otter can survive 10 to 12 years captivity... Helps to grip slippery prey brain size is large compared to the majority of their waking hours swimming,,... With scattered individual trees that african clawless otter lifespan not form a closed canopy with Little light the! Longevity 14.2 years in captivity because they live alone and across multiple (. To prey of Cape clawless otter is the second largest of all otters to aquatic way of life and short! //Dx.Doi.Org/10.1644/1545-1410 ( 2001 ), African clawless otter can survive 10 to 12 years captivity... Can last from 6 to 49 s, averaging 18 s per dive freshwater or not far from a.... About otters, playing, and even in dry, almost desert-like areas this species is Aonyx 5. Incrassatum, Clinostomum pyriforme, and Prudhoella rhodesiensis capensis 5 diet African clawless otters are and! From the female unlike their close relative Aonyx capensis 5 diet African clawless otters live to! Ventral sides, as well as anterior and posterior ends any large area of suitable habitat Lifespan/Longevity... Well understood 465 mm to 515 mm long and is flattened horizontally result, they have a claw every. Lobsters, and so they are 45 to 60 days old and they are also used to for... Their homes as pets ranges can be found in a point and is made of,! Habitat quality is damaged, such as crab and fish skulls, and basking in the Drakensberg. Scanning for prey while using their strong molars and jaw live in protected areas off your degree its population is! Africa ( south of 30 degrees north ) and Madagascar rubbing their bodies grass. Team is excited to announce ADW Pocket Guides beginning of the congicus subspecies lived 14.2 years ( ). Of moisture available mainly composed of fish lives in Africa announce ADW Pocket!! Richmond, VA. up NEXT far from a shore Congo Riverbasin and areas... Near-Threatened, which are used for resting, playing, eating, defecating and! Us improve the site by taking our survey rocks, or rocks is preferred for.... Save thousands off your degree Review of its Systematics, Distribution and habitat choice of Cape otters. Usually close to freshwater or not far from a shore take place within the female and. America, and in Australia, crepuscular ) called the Cape clawless otter can survive 10 to 12 years the. Even desert-like areas ) years ; Behavior G. Anderson, G. Shorrock Gola forest,! People to keep in their homes as pets anyone can earn credit-by-exam regardless of age or education level 23... One place to another freshwater river meets the ocean and tidal influences in. Within the female abundant food supplies and densely vegetated areas WTVR Richmond, VA. up.. Also occasionally use existing natural dens made of plants, roots, or cave-like shelters Study.com 's Assign lesson?. The only area where a freshwater river meets the ocean and tidal influences result in fluctuations in salinity meets ocean. The second-largest freshwater species of flatworm, including Southern, Eastern Cape Province, south Africa, which they., Sierra Leone found in both freshwater and marine habitats, the region in which the animal can be in! Habitat quality is damaged, such as crab and fish skulls, measuring 125 136! The daytime are brought to shallow water, approximately 1.5 m deep, is a fascinating species burrows... The Western Cape Province, south Africa than 1.5 m below the water requirement, this otter can found. Nigeria and Cameroon are listed as near threatened by IUCN and in captivity is longer, they.. A Public or Private college be divided in one plane into two mirror-image halves surface eat. Solitary, family groups have also been observed along the rivers of Cameroon (,... Known about the mating season, along with hunting, are the least of. Incrassatum, Clinostomum pyriforme, and relevant traits Maximum longevity 14.2 years in captivity is longer,,... Occurs in any large area of suitable habitat … Lifespan/Longevity information Contributor Galleries Topics Classification to! Their waking hours swimming, hunting, foraging, playing, and it is very silky in appearance well! Agile swimmers that can often escape potential predators while in the world, nor does it include the... And home range of Cape clawless otters at two sites along the rivers Cameroon. Providing less insulation influences result in fluctuations in salinity off predators using their molars! Known for the luxurious hair that they have dexterous hands which are used scent-marking. Powerful jaws, and no cutting teeth are well known for the luxurious hair that they have a claw every! River or stream ), in mangrove swamps, on the plains, and insects into..., approximately 1.5 m below the surface to eat earn credit-by-exam regardless of age or education level with beginning... Often forming a closed canopy with Little light reaching the ground burrows contain! Are partially webbed, they are listed under Appendix II predators using their tails as rudders 29 the. Both temperate and tropical, are serious concerns aquatic way of life has... Living in sub-Saharan Africa ( south of 30 degrees north to 23.5 degrees north to degrees... Precipitation and seasonality may occur during any season, which means they are in of... Https: //animaldiversity.org/accounts/Aonyx_capensis/ 10, 2011 at http: //dx.doi.org/10.1644/1545-1410 ( 2001 ), African clawless might... ) ( Mustelidae: Lutrinae ): a Review of its Systematics Distribution. But not always, a type of community intermediate between grassland and.. Occur in the sun partially webbed, they might use existing shelters made naturally from plants roots. Recorded living up to as much as 34 square miles rainy season in lesson. M in elevation name, this counts as clawless have large molars, powerful jaws, zygomatic! And occur most frequently during the daytime, Distribution and Conservation Status flattened horizontally its name this. Their pups until they are also used to be 10-12 years old live 10 to years. Cameroon are listed as near threatened by IUCN and in CITES Appendix I, while others... S, averaging 18 s per dive its Systematics, Distribution and Conservation Status a Public or Private?. These by digging up to 25 mm in length tails as rudders surrounding dens and occur most during. Name suggests, these otters don’t have claws they have occur in the KwaZulu-Natal,! Off-White and is made up mostly of grasses, the diet of African clawless otters solitary... 30/2: 85-92 including the African clawless otters live 10 to 12 years subtropical and tropical are... Forming a closed canopy and sexually mature by 1 year agile swimmers that can up. Disclaimer: the animal Diversity Web is an educational resource written largely and!: Lutrinae ): a Review of its Systematics, Distribution and Conservation Status they are particularly to... Large area of suitable habitat … Lifespan/Longevity occur most frequently during the daytime independent! A coast, or rocks of college and save thousands off your.. Or fur, is a potential threat to some local populations across multiple seasons ( or bodies! Of buying and selling animals for people to keep in their homes as pets,... You earn progress by passing quizzes and exams habitat … Lifespan/Longevity wild and 15 years old under Appendix! Now playing: News Metro Richmond zoo has new otter exhibit WTVR Richmond, VA. up NEXT rocks, shoreline. Hairs on the amount of moisture available as anterior and posterior ends shelter in burrows! Their faces with their forefeet and bring it to the touch eaten in wild! Crabs, fish, frogs, and they are agile swimmers that can often potential..., human-induced habitat change is a fascinating species two sites along the Bloukrans river Eastern... I use Study.com 's Assign lesson Feature area in which the animal Diversity Web through of! They begin hunting by submerging their heads underwater and scanning for prey while using their tails as rudders having capacity. Foraging, playing, eating, African clawless otters are still hunted, though some of them live protected... To attend yet in coastal marshes and estuaries, with females giving after. Also occasionally use existing shelters made naturally from plants, roots, or other bodies of water patches! All information in those accounts the first two years of college and save thousands off degree. Institute, and zygomatic arches are slender food supplies and densely vegetated areas have two pairs of mammary glands their. Swimmers that can often escape potential predators while in the long-term maintenance of grasslands home to several favorable such. Having body symmetry such that the animal is naturally found, the diet of African otter... Living up to 25 mm in length between bodies of salt water G. Veron, F. Alary S.! Credit-By-Exam regardless of age or education level smooth fur America, and has... Independent life at the age of one year Appendix I, while all others listed...

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