Answer. , Polar bear population sizes and trends are difficult to estimate accurately because they occupy remote home ranges and exist at low population densities. Ursus labradorensis Info. , Steven Amstrup and other U.S. Geological Survey scientists have predicted two-thirds of the world's polar bears may disappear by 2050, based on moderate projections for the shrinking of summer sea ice caused by climate change, though the validity of this study has been debated. Favorite Answer (m) The name Ursus maritimus is Latin - "Ursus" means "bear" and "maritimus" means "sea". The ice edge and pressure ridges where fractures and refreezing occur provide the best hunting ground.  Between 1987 and 2004, the Western Hudson Bay population declined by 22%, although the population was listed as "stable" as of 2017. Upload media Wikipedia: Instance of: hybrids: Authority control Q2089056. During the same time periods, DDT was found to be notably lower in the Western Hudson Bay population only.  While most of that quota is hunted by the indigenous Inuit people, a growing share is sold to recreational hunters.  A male may follow the tracks of a breeding female for 100 km (60 mi) or more, and after finding her engage in intense fighting with other males over mating rights, fights that often result in scars and broken teeth. Because of their dependence on the sea ice, polar bears are classified as marine mammals. Top Tag’s. Academic disciplines Business Concepts Crime Culture Economy Education Energy Events Food and drink Geography Government Health Human behavior Humanities Knowledge Law Life Mind Objects Organizations People Philosophy Society Sports Universe World Arts Lists Glossaries. They possess the ability to move independently.  Only once the spirit was appeased was the skull be separated from the skin, taken beyond the bounds of the homestead, and placed in the ground, facing north. , The polar bear is a marine mammal because it spends many months of the year at sea. We are going to drive around 200-240km, so we recommend that you have some snowmobile experience. At up to 2,000 kg (4,400 lb) and a typical adult mass range of 600 to 1,500 kg (1,300 to 3,300 lb), a walrus can be more than twice the bear's weight, has extremely thick skin and has up to 1-metre (3 ft)-long ivory tusks that can be used as formidable weapons. PCBs have received the most study, and they have been associated with birth defects and immune system deficiency. The vast, ice-covered ocean known as the Arctic actually has etymological roots in the ancient Greek word, ἄρκτος, meaning bear. Scientists have responded by noting that hungry bears may be congregating around human settlements, leading to the illusion that populations are higher than they actually are.  Bacterial leptospirosis and Morbillivirus have been recorded. It is difficult to estimate a global population of polar bears as much of the range has been poorly studied; however, biologists use a working estimate of about 20–25,000 or 22–31,000 polar bears worldwide. Based on the fossil record, Kurtén (1964) recommended the Phipps (1774) name Ursus maritimus, which was promoted by Harington (1966), For wildlife at risk, such as some polar bear (Ursus maritimus) subpopulations, establishing comprehensive monitoring programs that include health status is an emerging need. Find more similar words at wordhippo.com! The agreement was a rare case of international cooperation during the Cold War.  This was the case for 40% of cubs there in the early 1980s; however by the 1990s, fewer than 20% of cubs were weaned this young. Translate ursus maritimus in English online and download now our free translator to use any time at no charge. Polar bears are thought to have diverged from a population of brown bears that became iso… Polar Bear are specifically adapted to the Arctic coastal marine environment and their life history is substantially dependent on sea-ice habitat. Hunters commonly used teams of dogs to distract the bear, allowing the hunter to spear the bear or shoot it with arrows at closer range.  As the distance increases between the pack ice and the coast, females must swim longer distances to reach favoured denning areas on land. You plan ahead, giving careful consideration to detail and because of your efficiency you attract a great deal of responsibility. The family remains in the den until mid-February to mid-April, with the mother maintaining her fast while nursing her cubs on a fat-rich milk. The length of these swims ranged from most of a day to ten days. Throughout its circumpolar range, the polar bear (Ursus maritimus) feeds predominantly on the ringed seal (Phoca hispida). This translates as, ursus meaning “bear” and maritimus meaning “of the sea, maritime”. ", "Magic Number: a Sketchy "Fact" About Polar Bears Keeps Going...And Going... And Going", "Nunavut MLAs condemn U.S. proposal to make polar bears threatened species", "Order Authorizing the Issue of a Two Dollar Circulation Coin Commemorating the Millennium and Specifying its Characteristics, SOR/2000-245", "Nunavut's polar bear licence plates may go extinct", "The Bowdoin polar bear: origins in a history of exploration", "University of Alaska Fairbanks Logo History", "13 Questions with the Producers of Lost: Polar Bears, the Smoke Monster, and the Man in Black", National Wildlife Federation's Polar Bear Page, Map of polar bear ranges and denning areas in Nunavut from Nunavut Planning Commission. 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. The official name is a grizzly–polar bear hybrid.  The polar bear is the mascot of Bowdoin College, Maine; the University of Alaska Fairbanks; and the 1988 Winter Olympics held in Calgary. In Russian, it is usually called бе́лый медве́дь (bélyj medvédj, the white bear), though an older word still in use is ошку́й (Oshkúj, which comes from the Komi oski, "bear"). Polar Bear. 475–485 in Wild furbearer management and conservation in North America (M. Novak, J. See also brunus edwardii . This is an extreme trip where we stay outside the whole day. Noun 1. The Polar Bear (Ursus maritimus) is an apex carnivore found throughout the ice-covered coastal regions of the Arctic.  In most subpopulations, maternity dens are situated on land a few kilometres from the coast, and the individuals in a subpopulation tend to reuse the same denning areas each year. When walking, the polar bear tends to have a lumbering gait and maintains an average speed of around 5.6 km/h (3.5 mph). Fish and Wildlife Service published a draft conservation management plan for polar bears to improve their status under the Endangered Species Act and the Marine Mammal Protection Act.  Partners stay together and mate repeatedly for an entire week; the mating ritual induces ovulation in the female. The cheek teeth are smaller and more jagged than in the brown bear, and the canines are larger and sharper. ursus maritimus pronunciation - How to properly say ursus maritimus.  When pregnant, however, females can weigh as much as 500 kg (1,100 lb). You plan ahead, giving careful consideration to detail and because of your efficiency you attract a great deal of responsibility.  Halocarbons (also known as organohalogens) are known to be toxic to other animals, because they mimic hormone chemistry, and biomarkers such as immunoglobulin G and retinol suggest similar effects on polar bears. , The evidence from DNA analysis is more complex. 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. Maritimus - Detailed Meaning. , After mating, the fertilized egg remains in a suspended state until August or September. In reality, this animal’s name differs in the various cultures that have come into contact with it. , Polar bears were hunted heavily in Svalbard, Norway throughout the 19th century and to as recently as 1973, when the conservation treaty was signed. Compared to the Antarctic, where there is no major surface predator, Arctic seals use more breathing holes per individual, appear more restless when hauled out on the ice, and rarely defecate on the ice. Info. In some areas, the polar bear's diet is supplemented by walrus calves and by the carcasses of dead adult walruses or whales, whose blubber is readily devoured even when rotten. The bears then proceeded to cache the carcasses, which remained and were eaten during the ice-free summer and autumn. The Canadian two-dollar coin carries an image of a lone polar bear on its reverse side, while a special millennium edition featured three. Photos, facts, videos from Polar Bears International that funds population, preservation, and DNA studies of the polar bear, Map: Here's where the polar bears are vanishing, https://en.wikipedia.org/w/index.php?title=Polar_bear&oldid=997232797, Taxa named by Constantine Phipps, 2nd Baron Mulgrave, Articles with dead external links from December 2016, Articles with permanently dead external links, Wikipedia indefinitely semi-protected pages, Short description is different from Wikidata, All Wikipedia articles written in Canadian English, Articles containing potentially dated statements from 2016, All articles containing potentially dated statements, Articles with unsourced statements from August 2011, Wikipedia articles in need of updating from December 2019, All Wikipedia articles in need of updating, Creative Commons Attribution-ShareAlike License, This page was last edited on 30 December 2020, at 16:00.  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.  Other provisions included year-round protection of cubs and mothers, restrictions on weapons used and various administrative requirements to catalogue kills. , With the exception of pregnant females, polar bears are active year-round, although they have a vestigial hibernation induction trigger in their blood. , Polar bears accumulate high levels of persistent organic pollutants such as polychlorinated biphenyl (PCBs) and chlorinated pesticides. ", Agreements have been made between countries to co-manage their shared polar bear subpopulations.  Disease-causing bacteria and parasites would flourish more readily in a warmer climate.  Many attacks by brown bears are the result of surprising the animal, which is not the case with the polar bear.  This study illustrates the polar bear's dietary flexibility but it does not represent its life history elsewhere. , The bear family, Ursidae, is thought to have split from other carnivorans about 38 million years ago. 1987. ", Of the 19 recognized polar bear subpopulations, one is in decline, two are increasing, seven are stable, and nine have insufficient data, as of 2017.  One bear swam continuously for 9 days in the frigid Bering Sea for 700 km (400 mi) to reach ice far from land. These areas, known as the "Arctic ring of life", have high biological productivity in comparison to the deep waters of the high Arctic.  A comparison of the nuclear genome of polar bears with that of brown bears revealed a different pattern, the two forming genetically distinct clades that diverged approximately 603,000 years ago, although the latest research is based on analysis of the complete genomes (rather than just the mitochondria or partial nuclear genomes) of polar and brown bears, and establishes the divergence of polar and brown bears at 400,000 years ago. , Mature bears tend to eat only the calorie-rich skin and blubber of the seal, which are highly digestible, whereas younger bears consume the protein-rich red meat. Ursus ungavensis Ursus jenaensis , Females begin to breed at the age of four years in most areas, and five years in the area of the Beaufort Sea. Whereas northern communities kill all the polar bears they are permitted to take each year, only half of sport hunters with permits actually manage to kill a polar bear. , In addition to creating nutritional stress, a warming climate is expected to affect various other aspects of polar bear life: changes in sea ice affect the ability of pregnant females to build suitable maternity dens. Bears will travel as much as 1,000 km north and south, as the ice melts and freezes. It is the largest extant bear species, as well as the largest extant land carnivore. Ursus Maritimus: 1 n white bear of Arctic regions Synonyms: Thalarctos maritimus , ice bear , polar bear Type of: bear massive plantigrade carnivorous or omnivorous … Ursus Maritimus - white bear of Arctic regions ice bear, polar bear, Thalarctos maritimus bear - … , Because of expected habitat loss caused by climate change, the polar bear is classified as a vulnerable species. 1 decade ago. The resulting high concentrations cause Hypervitaminosis A, Hunters make sure to either toss the liver into the sea or bury it in order to spare their dogs from potential poisoning. Includes black, brown, American black, grizzly, big brown and U. theodorus .  Polar bears gradually moult from May to August, but, unlike other Arctic mammals, they do not shed their coat for a darker shade to provide camouflage in summer conditions.  Unlike the brown bear, polar bears in captivity are rarely overweight or particularly large, possibly as a reaction to the warm conditions of most zoos. , Polar bears were designated "Not at Risk" in April 1986 and uplisted to "Special Concern" in April 1991. Example sentences containing Ursus Maritimus Kolenosky G. B.  Around the Beaufort Sea, however, mature males reportedly average 450 kg (1,000 lb). , The Inuit and Alaska Natives have many folk tales featuring the bears including legends in which bears are humans when inside their own houses and put on bear hides when going outside, and stories of how the constellation that is said to resemble a great bear surrounded by dogs came into being. They will even attack adult walruses when their diving holes have frozen over or intercept them before they can get back to the diving hole in the ice. By the time the mother breaks open the entrance to the den, her cubs weigh about 10 to 15 kilograms (22 to 33 lb). Polar Bear - Ursus maritimus from the Latin for "bear of the sea" (maritime bear) Ah tik tok - Alaskan Eskimo name meaning "those that go down to the sea" Many common names throughout Arctic: nanook, ice bear, sea bear. We require a minimum of 2 persons on this trip. , Female polar bears have been known to adopt other cubs. , In 1992, a photographer near Churchill took a now widely circulated set of photographs of a polar bear playing with a Canadian Eskimo Dog (Canis lupus familiaris) a tenth of its size. In Hudson Bay, James Bay, and some other areas, the ice melts completely each summer (an event often referred to as "ice-floe breakup"), forcing polar bears to go onto land and wait through the months until the next freeze-up. Disturbance of these sensitive sites may trigger the mother to abandon her den prematurely, or abandon her litter altogether. Coca-Cola has used images of the polar bear in its advertising, and Polar Beverages, Nelvana, Bundaberg Rum, Klondike bars, and Fox's Glacier Mints all feature polar bears in their logos. Wikispecies ; Ursus maritimus on Wikimedia Commons. Have a definition for Ursus maritimus ? Asked by Wiki User.  Thinner sea ice tends to deform more easily, which appears to make it more difficult for polar bears to access seals.  In September 2015, the polar bear range states agreed upon a "circumpolar action plan" describing their conservation strategy for polar bears. , The polar bear's most common hunting method is called still-hunting: the bear uses its excellent sense of smell to locate a seal breathing hole, and crouches nearby in silence for a seal to appear.  This decision was approved of by members of the IUCN and TRAFFIC, who determined that such an uplisting was unlikely to confer a conservation benefit. Ontario Fur Trappers Association, North Bay, Ontario, Canada.  When nervous, bears produce huffs, chuffs and snorts while hisses, growls and roars are signs of aggression. Ursus Maritimus . The polar bear is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. . Define Ursus Maritimus. Results indicated that testosterone was signiﬁcantly higher during the breeding season (early January through the end of May) compared with the non-breeding season with the highest concentrations excreted from early January through late …  As predicted by Allen's rule for a northerly animal, the legs are stocky and the ears and tail are small.  In 2010, the Ministry of Natural Resources and Environment published a strategy for polar bear conservation in Russia.  For thousands of years, the polar bear has been a key figure in the material, spiritual, and cultural life of circumpolar peoples, and polar bears remain important in their cultures. Polar bears are studied to gain understanding of what is happening throughout the Arctic, because at-risk polar bears are often a sign of something wrong with the Arctic marine ecosystem. translation and definition "Ursus Maritimus", English-Polish Dictionary online.  Most terrestrial animals in the Arctic can outrun the polar bear on land as polar bears overheat quickly, and most marine animals the bear encounters can outswim it. For the polar bears that currently den on multi-year ice, increased ice mobility may result in longer distances for mothers and young cubs to walk when they return to seal-hunting areas in the spring. Their scientific name means "maritime bear" and derives from this fact. This trip is 2 hours longer than our Ursus Maritimus – King of the Arctic trip, meaning that we will get more time on the east coast. The meaning of health for wildlife and perspectives on how to assess and measure health, are not well characterized.  The bearded seal, on the other hand, can be nearly the same size as the bear itself, averaging 270 kg (600 lb). In unusually warm conditions, the hollow tubes provide an excellent home for algae. Listen to the audio pronunciation in several English accents. After several years of negotiations, Russia and the United States signed an agreement in October 2000 to jointly set quotas for indigenous subsistence hunting in Alaska and Chukotka.  They also in places prey heavily upon the harp seal (Pagophilus groenlandicus), the harbour seal (Phoca vitulina), or the hooded seal (Cystophora cristata).  In the Norwegian-administered Svalbard archipelago, the polar bear is referred to as Isbjørn ("ice bear").  Males have significantly longer hairs on their forelegs, which increase in length until the bear reaches 14 years of age. Synonyms for Ursus maritimus include polar bear, ice bear, northern bear, sea bear, Thalarctos maritimus and white bear. Under those restrictions, permits from the United States Fish and Wildlife Service were required to import sport-hunted polar bear trophies taken in hunting expeditions in Canada. It banned hunting (except by indigenous subsistence hunters), banned importing of polar bear parts (except polar bear pelts taken legally in Canada), and banned the harassment of polar bears. Elsewhere, a slightly larger estimated average weight of 260 kg (570 lb) was claimed for adult females. genus Thalarctos, Thalarctos - polar bears; in some classifications not a separate genus from Ursus. Ten of the sows had a cub swim with them and after a year, six cubs survived. The bear may lie in wait for several hours. Polar bear on Wikipedia. ursus maritimus Essay Examples. The Western Hudson Bay subpopulation is unusual in that its female polar bears sometimes wean their cubs at only one and a half years. The term ursus martimums means ice bear. Type: noun; Copy to clipboard; Details / edit; plwordnet-defs.  The remains of polar bears have found in the stomachs of large Greenland sharks (Somniosus microcephalus), although it certainly cannot be ruled out that the bears were merely scavenged by this slow-moving, unusual shark. During the swim, the bear lost 22% of her body mass and her yearling cub died.  A study in Hudson Bay indicated that both the reproductive success and the maternal weight of females peaked in their mid-teens.Maternal success appeared to decline after this point, possibly because of an age-related impairment in the ability to store the fat necessary to rear cubs.. It is known, for example, that already in the winter of 1784/1785 Russian Pomors on Spitsbergen harvested 150 polar bears in Magdalenefjorden. The whales are of similar size to the walrus and nearly as difficult for the bear to subdue. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall. , 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). 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..  Chemical communication can also be important: bears leave behind their scent in their tracks which allow individuals to keep track of one another in the vast Arctic wilderness. , Brown bears tend to dominate polar bears in disputes over carcasses, and dead polar bear cubs have been found in brown bear dens. He chose the scientific name Ursus maritimus, the Latin for 'maritime bear' due to the animal's native habitat. Polar bears exposed to oil spill conditions have been observed to lick the oil from their fur, leading to fatal kidney failure. oedipus heroes definition lyrics things fall apart why i want to transfer community service gun control introduction animal farm brave new world process what is art personal statement argumentative.  Her body temperature does not decrease during this period as it would for a typical mammal in hibernation. Males usually reach sexual maturity at six years; however, as competition for females is fierce, many do not breed until the age of eight or ten. , The polar bear is the apex predator within its range, and is a keystone species for the Arctic. The oldest known polar bear fossil is a 130,000 to 110,000-year-old jaw bone, found on Prince Charles Foreland in 2004.  The numbers taken grew rapidly in the 1960s, peaking around 1968 with a global total of 1,250 bears that year. FA levels of each trait were compared between sex/age groups (subadults, adult females, adult males), periods (< 1960, > 1960), and localities (East Greenland, Svalbard). , The polar bear is found in the Arctic Circle and adjacent land masses as far south as Newfoundland. For about 12 to 15 days, the family spends time outside the den while remaining in its vicinity, the mother grazing on vegetation while the cubs become used to walking and playing. Norway is the only country of the five in which all harvest of polar bears is banned.  In most areas, cubs are weaned at two and a half years of age, when the mother chases them away or abandons them. Member countries agreed to place restrictions on recreational and commercial hunting, ban hunting from aircraft and icebreakers, and conduct further research. The bear was able to reach the truck and tore one of the doors off the truck before Hoshino was able to drive off.  One alleged fossil subspecies has been identified: Ursus maritimus tyrannus, which became extinct during the Pleistocene. Polar bear. This is an extreme trip where we stay outside the whole day. ursus maritimus translation in Latin-English dictionary. Research of injury patterns in polar bear forelimbs found injuries to the right forelimb to be more frequent than those to the left, suggesting, perhaps, right-handedness.  However, due to their lack of prior human interaction, hungry polar bears are extremely unpredictable, fearless towards people and are known to kill and sometimes eat humans.  The evolutionary pressure of polar bear predation on seals probably accounts for some significant differences between Arctic and Antarctic seals. What does the Latin name "Ursus maritimus" mean? 2006 it imposed a limit of 150, while a special millennium featured! 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