What is in the polar bear site?
The largest bear in the world, polar bear lives in the Arctic areas of the United States, Canada, Russia, Greenland and Norway. The determination of a polar bear concerns a unique combination of biotic and abiotic factors that affect the successful survival and spread of polar bears. Biotic factors or biological influences include a number of living organisms or ecological communities. Abiotic factors are physical or inanimate factors such as climate and nutrient availability. These factors relate to the geographical scope of the organism. According to some estimates, polar bears kill up to 44% of newborn puppies in the spring, at a time when young bear chicks gain weight at the speed of pounds (500 grams) a day. The bearded seals are larger than the ring seals and represent a larger challenge. Polar bears do not obtain a vegetation and need a high ratio of fat and protein in their diet. The seal with a fat layer that protects it from the cold is ideal as the main source of polar bear food.
Another biotic factor of polar bear habitat is the fish population on which the seals are supplied. These fish will vary depending on biotic and abiotic factors of their habitat. Biotic factors include the density of small animals and microorganisms. The water temperature and the oxygen content are examples of abiotic factors. Thus, the entire food chain of Arctic ecology becomes a factor in the polar bear site, which makes the polar bears the upper part of the food chain.
polar bears also reflects abiotic climate factors and local weather. Polar bears migrate melting and freezing sea ice, as well as air breathing seals. While the climate largely depends on the width, the shape of the coast, the presence of islands, bays and entrances is influenced by the local outflow and flow of sea ice.
The northern range of these animals exposes them to a high level of ultraviolet light (UV), an abiotic factor. Once withE believed that the hair transported UV to the skin for absorption. The following studies cheaper this theory, although bear fur absorbs UV light and protects the skin. The polar bear skin is black, maybe it increases heat retention.
pregnant women form a lair, usually on the ground, but men and uncertain women live primarily on sea ice throughout the year. The preferred habitat is sea LED near the coast that suits hunting and daily needs. The weather dictates the time when pregnant women form a lair. Snow drifts must be deep enough to be located to place snow caves. Bears do not kick into the ground under snow and ice.
Hunting people for food, fur or as trophies has been a factor in a polar bear for centuries, starting with the Raneeuroa Asian explorers. During the end of the 18th century to the beginning of the 20th century, the hunting of these bears destroyed some populations. Hunting continued, to a lesser extent, in the 1950s. In 1976, five countries signed an international agreement with a polar bears habitaton the preservation of polar bears. The contract banned hunting from aircraft or large motor vessels and started further protective measures.