What is the polar bears role in the ecosystem?

As one of the largest land carnivores in the world along with grizzly bears, polar bears are known as a keystone species, the apex of the ecosystem. They keep biological populations in balance, a critical component to a functioning ecosystem. They’re also a sign of health for the ecosystem.Click to see full answer. Also question is, how are polar bears important to the ecosystem?As an apex predator at the top of the food web, polar bears can signal that there are problems in the Arctic marine ecosystem. They are likely to be among the most significantly affected species as the Arctic warms and sea ice melts.One may also ask, what would happen to the ecosystem without polar bears? If Polar Bears went extinct then the Seal population would increase rapidly because Seals are the main prey for Polar bears. If Seal populations increased then Fish populations would decrease at an alarming rate. They are the top and no one in proximity would be able to do anything against a polar bear. Similarly, you may ask, what is the ecosystem of the polar bear? Polar bears are only found in the Arctic. The most important habitats for polar bears are the edges of pack ice where currents and wind interact, forming a continually melting and refreezing matrix of ice patches and leads (open spaces in the sea ice).Why is the polar bear a keystone species?Polar Bears are a keystone species because they eat the seals that eat the fish that we, humans eat.

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