Previously unknown contaminants found in polar bears
It’s hard to look for something when you don’t know what you’re looking for. That is what researchers faced when they tried to find contaminants in polar bear ...
Arctic
Shorebird declines likely due to climate change
Climate change may be the main reason behind a great decline in shorebird populations around the world, researchers found. After looking at 38,191 nests of 111 ...
Skipping the layover, Arctic geese opt for a direct flight
Rather than using their historical migratory stopovers, Barnacle geese (Branta leucopsis) have begun making nonstop journeys from the Netherlands to their Arctic ...
Study finds polar bears aren’t so wasteful when walking
With declines in sea ice that polar bears (Ursus maritimus) in the arctic require to subsist, researchers have seen accounts of bears traveling farther north. But ...
The latest culprit in Arctic warming — beavers
Humans may not be the only culprits in climate change. The New York Times reports that as the arctic warms, beavers (Castor canadensis) are expanding their range ...
Hazards on migration route may imperil Arctic shorebirds
Arctic shorebird populations have been dwindling for more than a decade, but recent research suggests that habitat loss and other factors along their migratory ...
As sea ice melts, polar bears’ mercury levels fall
Climate change hasn’t been kind to the polar bear (Ursus maritimus), which has seen its traditional habitat dwindle as sea ice melts. But the rising mercury in ...
South American sandpiper’s route may explain its decline
Scientists have been tracking the migration of the semipalmated sandpiper (Calidris pusilla) to trace the origins of its population in northeastern South American, ...
Shrews offer insight into ecological changes in warming Arctic
Parasites don’t get much respect, but researchers have found they can offer important clues about climate change. As Arctic temperatures warm, recent research ...
Could reindeer be slowing climate change?
As the climate warms and permafrost thaws, some tundra dwellers might be helping cool the planet. By grazing heavily and decreasing the height and prevalence of ...