In Canada’s northern regions, residents have noticed a rise in polar bear sightings on land, with more frequent encounters between bears and humans. The prevailing belief was that these bears, driven by hunger due to diminishing sea ice, were coming ashore in search of food, possibly including humans. However, a recent 11-year study by the University of Saskatchewan and University of Manitoba researchers challenges this assumption.
The study’s findings revealed that the increased presence of polar bears near human settlements was not solely due to starving bears. Douglas Clark, a professor at the U of S, stated that extended periods off the ice led bears of all conditions, ages, and genders to venture closer to populated areas. By monitoring bears in Wapusk National Park near Churchill, Manitoba, researchers observed over 500 bear visits, correlating sea ice data with human activity to assess the reasons behind these encounters.
Published in Arctic Science, the study indicated that while some bears were indeed hungry, they did not exhibit predatory behavior towards humans. Climate change-induced sea ice reduction was the primary factor forcing bears onto land more frequently, bringing them into proximity with humans. The researchers emphasized that despite nutritional stress playing a role, bears were not actively seeking out humans as prey.
Alex Crawford, a U of M assistant professor involved in the research, emphasized that starving polar bears could pose a danger if they encounter humans. However, the study’s focus was on understanding the bears’ changing behavior in response to habitat and food source alterations. The ongoing research aims to track long-term changes in polar bear behavior as their environment continues to evolve.