Summer occurrence of polar bears, measured as the probability of encountering bears and the number of days with bear presence, has increased significantly from the 1970/80s to the present. We analyzed time-series of polar bear observations at four locations on Spitsbergen (Svalbard) and one in east Greenland. For these top-predators, longer ice-free seasons are hypothesized to force the bears to hunt for alternative terrestrial food, such as eggs from colonial breeding birds. Polar bears ( Ursus maritimus) depend on sea ice for hunting seals. The Arctic is becoming warmer at a high rate, and contractions in the extent of sea ice are currently changing the habitats of marine top-predators dependent on ice. 12Norwegian Institute for Nature Research (NINA), Trondheim, Norway.10Polish Polar Station Hornsund, Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland.9Department of Vertebrate Ecology and Zoology, University of Gdansk, Gdansk, Poland.8Chair for Landscape Management, University of Freiburg, Freiburg, Germany.7Groupe de Recherche en Ecologie Arctique, Francheville, France.6Institute of Animal Ecology and Nature Education, Gonterskirchen, Germany.5Department of Marine Ecology, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, Netherlands.4Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.3Arctic Ecology Department, FRAM-High North Research Centre for Climate and the Environment, Norwegian Institute for Nature Research (NINA), Tromsø, Norway.2FRAM-High North Research Centre for Climate and the Environment, Norwegian Polar Institute, Tromsø, Norway.1Arctic Centre, University of Groningen, Groningen, Netherlands.Gabrielsen 2, Johannes Lang 6,7, Elin Noreen 4, Thomas Oudman 5, Benoit Sittler 7,8, Lech Stempniewicz 9,10, Ingunn Tombre 3, Eva Wolters 11 and Børge Moe 12 Hanssen 3, Claus Bech 4, Sophie Bourgeon 2, Jimmy de Fouw 5, Geir W. Polar Bear cubs which are less than one year old are sometimes killed and eaten by wolves and other carnivores.Jouke Prop 1 *, Jon Aars 2, Bård-Jørgen Bårdsen 3, Sveinn A.Polar Bears eat cubs in the late summer and autumn, when seals are at the sea and not available for them.A malnourished mother might kill and eat its newborn cubs.Polar bears cubs are usually killed and eaten by other polar bears who are unable to find food or are not strong enough to kill seals.The cubs are not strong enough to protect themselves from other predators in the arctic region. A polar bear cub is always in protection of its mother but there are times when the mother might leave it in search food.Back in 2008, a young polar bear was found in the stomach of Greenland shark with no evidence whether the shark killed the polar bear or it just found a a polar bear carcass to eat.Cannibalism is a rare behavior in Polar Bears which has been on rise due to climate change.A strong male polar bear usually kills a female polar bear or cubs to eat them.Polar bears will also fight and kill each other when two males are fighting for a female to mate.They do this when times are tough and they are unable to find food.Polar bears are known to kill and sometimes eat their own kind.Polar bear hunting is banned in United States and Russia.500 to 600polar bears are hunted in Canada every year.Polar Bears are poached by humans for their fur and other parts, which are then traded internationally for very high price.
Some might have hunted it for food but most of them are hunted for commercial reasons. Polar Bears are not part of normal human diet yet humans have been hunting polar bears for centuries.This common predator of top predators is human. For every top predator in the world whether it is a tiger, lion, shark or polar bear there is always one predator that has been hunting and killing them all.What Eats a Badger | 8 Predators That Prey on Badgers | Badger Predators What Eats Polar Bear – Polar Bear Predators 1.
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