Many people worry about all the satellites up there pointing cameras down here but for scientists as well as governments they can be invaluable – particularly if you need to p p p pick up a penguin, or 9,000.
In recent years wildlife researchers have used satellite and aerial imagery to watch animal movements and behaviour. Dr Sabine Begall, from the University of Duisburg-Essen, Germany who had been studying magnetic sensing in animals, initially mole rats, decided to see if larger animals might have the same. Dr Begall and colleagues used Google Earth to examine how cows stand in fields across the world (to rule out weather effects) and found that the majority faced north or south only, the effect was also seen in deer in the Czech Republic.
In 2009 a group monitoring how penguins were coping with changing environmental conditions wanted to confirm the location of breeding grounds. Using satellite images, which didn’t have sufficient resolution to see individual birds, they were able to identify colonies due to the staining of the ground by guano – the penguins stay at the colony for around eight months. The work confirmed the location of 26 colonies and found 10 more.
Then in December last year a team of Belgian and Swiss explorers visited one of these colonies, finding around 9,000 birds. The article at The Atlantic has the photos.
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