
Hungry polar bears are increasingly foraging on สิ่งที่ต้องระวัง ในการเล่นเกมสล็อตออนไลน์ seabird eggs as climate change shrinks their Arctic hunting grounds, but research published on Wednesday (Apr 7) on the phenomenon highlights the struggle these apex predators have to adapt to their rapidly changing environment.
The climate change threat to polar bears is well known, driven by the extraordinary pace of change in the Arctic, which is warming twice as fast as the planet as a whole.
This is already leading to dwindling sea ice, cutting short the time they have to hunt seals, their preferred prey.
With a growing imperative to find alternative sustenance, polar bears have been pushed further afield in search of food, including scavenging in areas populated by humans.
Some bears are also coming ashore at the same time seabirds are nesting and are snacking on their eggs.
To measure how efficient these top-of-the-food-chain predators were at this foraging - and therefore how useful the eggs are to provide energy in their diets - researchers in Canada used drones to monitor them feeding from common eider duck nests on Mitivik Island, in Nunavut.