News tagged with aerial survey

Polar bears from space

Polar bear population estimates based on satellite images are similar to aerial estimates, according to a study published July 9, 2014 in the open-access journal PLOS ONE by Seth Stapleton from United States Geological Survey ...

dateJul 09, 2014 in Ecology
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Bay's underwater grasses decline for third year

( —An annual aerial survey led by researchers at the Virginia Institute of Marine Science shows that the abundance of underwater grasses in Chesapeake Bay and its tidal rivers declined 24% between 2011 and 2012, ...

dateApr 26, 2013 in Environment
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