Written by: Lisa Stelzner
Primary Source: Daily Dose of Science Blog
Polar bears in the Arctic have been losing the sea ice they use as part of their habitat in recent years due to warming, and because of the inaccessible, remote landscape, scientists have had difficulty monitoring their populations. Biologists found that they could actually identify 92 polar bears from satellite images in Nunavut, Canada. Satellite images do not have as high of resolution as aerial surveys done from airplanes, but aerial surveys are very expensive and hard to do in remote places. Satellite images could have an advantage in these cases.
Aerial surveys of the same area found 77 polar bears, so scientists now know that satellite numbers can be comparable.
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