Sunday, April 29, 2007

Another theory

From the Journal of Electronmagnetic Biology and Medicine. Researchers in Belgium have published data, from 150 locations, showing that the stronger the signal output from a mobile phone mast the less likely one is to find House Sparrows. Their hypothesis was that the longer the bird is exposed to radiation the more likely that behaviour would be affected. They state that the electromagnetic energy could upset the birds’ navigational systems and that prolonged exposure may actually electrically charge their feathers causing a change in behaviour.
I wonder why they centred on House Sparrows and not all birds in general. Although sparrows may be more susceptible, thus demonstrating changes quicker and more markedly than other birds, one might assume that all birds would be navigationally affected and thus in lower numbers around the phone masts.
I wonder if they will be making a claim on the Daily Telegraph reward for indicating 'the' cause of the decline in House Sparrow numbers.
Picture from: www.BirdsofBritain.co.uk

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