Polar Bears in Churchill

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Questions and Answers

What is the main reason for the decline in polar bears in the Western Hudson Bay area?

  • Warming temperatures (correct)
  • Fewer bears remembering the dump
  • Introduction of bear-resistant garbage bins
  • Changes in the polar vortex

What is the current trend of polar bears coming to Churchill?

  • More bears come to Churchill every year
  • The number of bears coming to Churchill remains the same
  • Only female bears come to Churchill now
  • Fewer bears come to Churchill every year (correct)

According to the most recent survey, how many polar bears were in the Western Hudson Bay area in 2022?

  • 935
  • 1,200
  • 750
  • 618 (correct)

What happened to the bears between 2016 and 2022 due to changes in the polar vortex?

<p>They stayed out longer and were pushed farther along the coast, away from Churchill (A)</p> Signup and view all the answers

What is the potential outcome if we reduce greenhouse gas emissions and slow down global warming?

<p>Churchill could remain a popular spot for polar bears and people for many years to come (C)</p> Signup and view all the answers

Why do polar bears choose to move through Churchill?

<p>Because of the bay's ocean currents and geography (B)</p> Signup and view all the answers

What happens to the melting ice in Hudson Bay?

<p>It gets pushed to the southern coast, where bears come ashore (C)</p> Signup and view all the answers

What is the reason for the early freeze-up in Hudson Bay?

<p>Due to the freshwater from the surrounding rivers (A)</p> Signup and view all the answers

What has been the trend in the number of bears handled by wildlife officers in Churchill since 2003?

<p>A steady decrease in the number of bears (C)</p> Signup and view all the answers

What was the main reason for the bears being attracted to Churchill before 2005?

<p>The availability of food waste in the open-air dump (C)</p> Signup and view all the answers

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Study Notes

Polar Bears in Churchill

  • Churchill's population grows from 900 to several thousand during October and November due to tourists visiting to see polar bears.
  • Polar bears migrate through and around Churchill on their way to the tundra, waiting for the sea ice to form on Hudson Bay.
  • Churchill is Canada's most northern passenger railway station and its only Arctic seaport.

Why Polar Bears Choose Churchill

  • Hudson Bay is one of the few places where the ice melts completely each year, causing polar bears to come ashore during the summer.
  • The bay's ocean currents and geography push melting ice to the southern coast, where bears rest in earthen dens.
  • The area has an early freeze-up due to freshwater from the Churchill, Nelson, and Hayes Rivers, which attracts hungry bears.

Polar Bear Statistics in Churchill

  • The number of bears handled by wildlife officers varies each year, with a decline in recent years (e.g., 173 in 2003, 12 in 2023).
  • The decline in bears is attributed to a change in how Churchill residents deal with trash and a decrease in the Western Hudson Bay polar bear population.

Decline in Polar Bears

  • The closure of the open-air dump in 2005 and introduction of bear-resistant garbage bins have reduced the attraction of bears to the town.
  • The Western Hudson Bay polar bear population has decreased from 1,200 in 1987 to 618 in 2022 due to warming temperatures.
  • Warming temperatures cause the sea ice to melt earlier and form later, reducing the time for bears to hunt and making them smaller and less healthy.

Impact of Climate Change

  • Changes in the polar vortex between 2016 and 2022 caused the ice to last longer into the summer, pushing bears farther along the coast and away from Churchill.
  • Reducing greenhouse gas emissions and slowing down global warming could help preserve the polar bear population and Churchill's popularity as a tourist spot.

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