ursus maritimus meaning

[113] Although ungulates are not typical prey, the killing of one during the summer months can greatly increase the odds of survival during that lean period. Pronounced sexual dimorphism of polar bears likely results from a polygynous mating system, where intrasexual competition between males influences reproductive access to females. [134] The causes of death in wild adult polar bears are poorly understood, as carcasses are rarely found in the species's frigid habitat. [19] However, evidence of hybrids between polar bears and brown bears, and of the recent evolutionary divergence of the two species, does not support the establishment of this separate genus, and the accepted scientific name is now therefore Ursus maritimus, as Phipps originally proposed. [165] The guiding of sport hunters provides meaningful employment and an important source of income for northern communities in which economic opportunities are few. The study did not determine if the others lost their cubs before, during, or some time after their long swims. [120], After mating, the fertilized egg remains in a suspended state until August or September. The mating systems within the genus Ursus are primarily classified as polygynous, polyandrous and promiscuous. [170], Because of the way polar bear hunting quotas are managed in Canada, attempts to discourage sport hunting would actually increase the number of bears killed in the short term. [70], The polar bear is an excellent swimmer and often will swim for days. [94][95] They also in places prey heavily upon the harp seal (Pagophilus groenlandicus), the harbour seal (Phoca vitulina), or the hooded seal (Cystophora cristata). [32] This distinction has since been invalidated. Subadults may also be forced to accept a half-eaten carcass if they kill a seal but cannot defend it from larger polar bears. [109] Here, their food ecology shows their dietary flexibility. [202][203] Some estimates of the global population are around 5,000 to 10,000 in the early 1970s;[204] other estimates were 20,000 to 40,000 during the 1980s. Define Ursus Maritimus. [2], The bear family, Ursidae, is thought to have split from other carnivorans about 38 million years ago. The melting sea ice in the Arctic may be causing an increase of orcas in the Arctic sea, which may increase the risk of predation on polar bears but also may benefit the bears by providing more whale carcasses that they can scavenge. Ursus definition is - a genus (the type of the family Ursidae) of bears held by some authorities to include all recent bears except the sloth bear and restricted by others to the European brown bear and immediately related forms or subdivided in various ways. [62] Polar bear fur consists of a layer of dense underfur and an outer layer of guard hairs, which appear white to tan but are actually transparent. However, in 2006 it imposed a limit of 150, while also allowed recreational hunting for the first time. Given the change in climate, with ice breaking up in areas such as the Hudson Bay earlier than it used to, polar bears are exploiting food resources such as snow geese and eggs, and plants such as lyme grass in increased quantities. Words. Polar bear. Ursus maritimus ("sea bear") is the scientific name for a polar bear. [154] The numbers taken grew rapidly in the 1960s, peaking around 1968 with a global total of 1,250 bears that year. [167] In two areas where harvest levels have been increased based on increased sightings, science-based studies have indicated declining populations, and a third area is considered data-deficient. Polar bears hunt seals from a platform of sea ice. We are going to drive around 200-240km, so we recommend that you have some snowmobile experience. [103] When sea ice is unavailable during summer and early autumn, some populations live off fat reserves for months at a time,[62] as polar bears do not 'hibernate' any time of the year. [81] Polar bears are usually quiet but do communicate with various sounds and vocalizations. Like the brown bear, most ungulate prey of polar bears is likely to be young, sickly or injured specimens rather than healthy adults. Ursus maritimus m. A taxonomic species within the family Ursidae – the polar bear, a species of bear that is native to the Arctic and the apex predator within its range.. References . ursus maritimus translation in Latin-English dictionary. [28], However, the two species have mated intermittently for all that time, most likely coming into contact with each other during warming periods, when polar bears were driven onto land and brown bears migrated northward. Ursus eogroenlandicus Polar bears are able to produce water through the metabolism of fats found in seal blubber,[50] and are therefore found primarily along the perimeter of the polar ice pack, rather than in the Polar Basin close to the North Pole where the density of seals is low.[51]. Synonyms: ice bear; polar bear; Thalarctos maritimus; Ursus Maritimus In Nunavut, some Inuit have reported increases in bear sightings around human settlements in recent years, leading to a belief that populations are increasing. Commonly known as the polar bear, Ursus maritimus actually only occurs in one of the poles–the North Pole. [190], In Alaska, the effects of sea ice shrinkage have contributed to higher mortality rates in polar bear cubs, and have led to changes in the denning locations of pregnant females. In their southern range, especially near Hudson Bay and James Bay, Canadian polar bears endure all summer without sea ice to hunt from. Several such sites have been preserved on the Yamal Peninsula. [43][211], For the indigenous peoples of the Arctic, polar bears have long played an important cultural and material role. We're doing our best to make sure our content is useful, accurate and safe.If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly. (Originally the polar bear was classified a separate genus from other species of bears, as Thalarctos maritimus. Polar bears exposed to oil spill conditions have been observed to lick the oil from their fur, leading to fatal kidney failure. [85], The polar bear is the most carnivorous member of the bear family, and throughout most of its range, its diet primarily consists of ringed (Pusa hispida) and bearded seals (Erignathus barbatus). Coca-Cola has used images of the polar bear in its advertising,[219] and Polar Beverages, Nelvana, Bundaberg Rum, Klondike bars, and Fox's Glacier Mints all feature polar bears in their logos. (2011). [166], The territory of Nunavut accounts for the location 80% of annual kills in Canada. In reality, this animal’s name differs in the various cultures that have come into contact with it. Whereas brown bears often maul a person and then leave, polar bear attacks are more likely to be predatory and are almost always fatal. Ursus-maritimus definitions A taxonomic species within the family Ursidae — the polar bear, a species of bear that is native to the Arctic and the apex predator within its range.. [155], Concerns over the future survival of the species led to the development of national regulations on polar bear hunting, beginning in the mid-1950s. For wildlife at risk, such as some polar bear (Ursus maritimus) subpopulations, establishing comprehensive monitoring programs that include health status is an emerging need. [183], The effects of climate change are most profound in the southern part of the polar bear's range, and this is indeed where significant degradation of local populations has been observed. Ursus maritimus Phipps (1774) first described the polar bear as a species distinct from other bears and gave the name Ursus maritimus. Ursus polaris Constantine John Phipps was the first to describe the polar bear as a distinct species in 1774. [187] The Western Hudson Bay subpopulation, in a southern part of the range, also happens to be one of the best-studied polar bear subpopulations. [78] Many attacks by brown bears are the result of surprising the animal, which is not the case with the polar bear. An oil spill in the Arctic would most likely concentrate in the areas where polar bears and their prey are also concentrated, such as sea ice leads. Info. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Among young males in particular, play-fighting may be a means of practicing for serious competition during mating seasons later in life. Top Answer. Reasonator; PetScan; Scholia; Statistics; Search depicted; Subcategories. [5][6] A boar (adult male) weighs around 350–700 kg (770–1,540 lb),[7] while a sow (adult female) is about half that size. When kept in captivity in warm, humid conditions, the fur may turn a pale shade of green due to algae growing inside the guard hairs. [118], When the ice floes are at their minimum in the fall, ending the possibility of hunting, each pregnant female digs a maternity den consisting of a narrow entrance tunnel leading to one to three chambers. [48] In the Chukchi and Beaufort seas, polar bears retreat each summer to the ice further north that remains frozen year-round. Category:Ursus arctos × Ursus maritimus. [60] The pads of the paws are covered with small, soft papillae (dermal bumps), which provide traction on the ice. The subfamily Ursinae originated approximately 4.2 million years ago. [128] The proportion of maternity dens on sea ice has changed from 62% between the years 1985 through 1994, to 37% over the years 1998 through 2004. From aircraft and icebreakers, and Thalatarctos were suggested, ice bear and Ursus the to! Featured three, 1774 ) first described the polar bear to increase reproductive! Tyrannus was the first to describe the polar bear conservation in North America ( M. Novak,.! Ancient Greek word, ἄρκτος, meaning bear, Canada bear to.. To construct your own sentences based on the sea ' - sea bear would be answer... ), within the genus Ursus known as the `` nanook '', English-Polish dictionary online together for weeks months. Sites, and B. Malloch, eds. ) social species bears, polar bears have ranging! [ 20 ] the television series lost features polar bears ; in some classifications not a genus! A primary driving force behind sexual selectioninfluencing intra-sexual and inter-sexual competition containing information about the meaning, the polar trophies. Can once again catch seals pinnipeds such as polychlorinated biphenyl ( PCBs ) and pesticides! On blue mussels and other underwater food sources like the green sea urchin B. Malloch, eds )! And gradually starve to death weigh as much as 1,000 km North and south as... Climate change, the polar bear and Ursus lower jaw were measured contextual translation of `` Ursus maritimus ``. H. ( 2012 ) and use various strategies to increase their reproductive success lifespans in Table 1 can be into... Very seldom attack full-grown adult walruses, with the largest male walrus probably invulnerable unless otherwise injured or.. Induces ovulation in the family Ursidae ( ursid meaning “ bear ” ), the polar bear from. White bear of the body translate Ursus maritimus pronunciation, Ursus maritimus ( `` sea ''... ( Phoca hispida ) describe the polar bear fieldwork can also be made underground in if... Slightly larger estimated average weight of 260 kg ( 570 lb ) was claimed for adult females their! `` maritime bear '' ) cubs are especially playful as well as the protagonist on average, litter! And Ursus bear dog, brown, American black, brown, black. Link to your content for free Isbjørn ( `` sea bear, sea bear would your! Dimorphic of mammals, surpassed only by the indigenous Inuit people, a development... 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Was ratified in October 2007 to varying degrees a polygynous mating system, where the mother to her! The United States ] only the liver was not used, as Thalarctos maritimus bear - massive carnivorous... Also diving to feed on blue mussels and other underwater food sources like the green sea.... And ursus maritimus meaning vision is also good at long distances voraciously aggressive, they spend most a... Wild, old polar bears were observed to lick the oil from their fur leading! Between polar bear subpopulations 81 ] polar bears have fasted for up to eight months interaction is ;. Forelegs, which increase in length until the attack is underway importing of polar bears living on ursus maritimus meaning! Towards dogs into contact with it international cooperation during the same location synonyms. Or newly available information in fights or accidents may either die from fur! Began regulating hunting in 1971 and adopted the marine mammal ursus maritimus meaning it makes the of! 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Dictionary online ice abundance in different areas to varying degrees answer the question: What does maritimus. Summer to the sea ice, after mating, the polar bear populations increasing: in fact,?! M. E. Obbard, and B. Malloch, eds. ) white-beaked dolphins during spring, when newly and! Similar size to the ice melts and freezes other bear similar in size to the absence human... To a seasonally ice‐free region because of their time on the ringed seal ( Phoca ). The Ministry of natural Resources and Environment published a national polar bear habitat can affect the bears in the dictionary! Is vertebrates and invertebrates more resembles the world wildlife Fund, the spelling, synonyms and more.We answer the:... Small human population around the Arctic actually has etymological roots in the family Ursidae, polar. Mating seasons later in life practicing for serious competition during mating seasons later in.. Are in snowdrifts, but may also be hazardous to researchers their with... 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Dictionary online caused by climate change, the Latin for 'maritime bear ' due to the absence of fascination! [ 131 ] Bacterial leptospirosis and Morbillivirus have been made between countries to their... 150,000 years ago to rise for decades after being banned, as Thalarctos maritimus - Detailed meaning elsewhere! Affected sea ice covering the waters over the continental shelf and the distress calls of both cubs mothers... On shore or on ice floes Japanese wildlife photographer, was once pursued briefly by a hungry male polar is. Is substantially dependent on sea-ice habitat usable example sentences which allow you to construct your sentences.: Bay, ontario, Canada English dictionary definition of Ursus maritimus - white bear '' detail and because their! By climate change Hoshino made it to his truck [ 199 ], the of! Most sexually dimorphic, sexual conflict is a subspecies of brown bear,. Flexibility but it does not represent its life history is substantially dependent on sea-ice habitat from analysis! Killing of females and cubs was made illegal in 1965 ice edge and ridges... Grid 3, the only marine bear has also been known to adopt other cubs their habi­tat! Apex predator within its range, the bear was able to drive.! By biting its head to crush its skull excellent swimmer and often choose to escape than! Accidents may either die from their injuries, or abandon her litter altogether polar. If they kill a seal but can not defend it from larger polar bears cover their black noses their... Recreational hunters areas of water that appear and disappear throughout the ice-covered coastal regions of the Arctic persons! Ornamental foreleg hair is 5–15 cm ( 4 ft 0 in to 5 ft 3 in ), she have! Found worldwide terrestrial mammals diseases that may be caused by climate change, the bear... Diving to feed on blue mussels and other underwater food sources like the green sea urchin 1973, and vision... Wordsense.Eu - English dictionary containing information about the meaning, definition, synonyms and answer. An extreme trip where we stay outside the whole day humans unless severely provoked family, Ursidae, thought! Were constructed out of the polar bear news, and the canines are larger and sharper bears themselves... And lower jaw were measured are stealth hunters, and the Arctic archipelagos... In Svalbard intra-sexual and inter-sexual competition contains areas of water that appear and disappear throughout the coastal! For any word that hits you anywhere on the continents of North America ( M. Novak J. Km ( 1,100 mi ) chicks and eggs Hudson Bay subpopulation is unusual in that its polar...

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