Polar bears
Polar_bearsEstimates of polar bear populations made in 2009 indicate that of the 19 recognized polar bear subpopulations, only one is currently increasing. Of the remaining subpopulations, three are stable, eight are declining, and seven have insufficient data from which to detect a trend. As polar bears are fundamentally dependent upon sea ice, increased fragmentation and loss of sea-ice habitat as a result of climate change is one of the greatest conservation concerns for this species. Pollutants entering the Arctic via long-range transport are another issue of concern for this top predator as contaminant loads are increasing in some populations.