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The Decline of the Blackbird

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Vintage Girl
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Joined: 05 Nov 2006
Posts: 3434
Location: Essex, England

Posted: Wed Jun 11, 2008 8:16 pm Post subject: The Decline of the Blackbird

http://news.bbc.co.uk/1/hi/sci/tech/7446647.stm

Quote:

A new genetic family tree of the UK's birds may help predict which will see their populations decline in future.

The family tree - or phylogenetic map - shows how closely species are related.

The scientist who compiled it, Gavin Thomas, found that populations of closely related species tend to undergo declines more or less in step.

Writing in the Royal Society's journal Proceedings B, he suggests that an apparently healthy species may be at risk if its relatives are disappearing.

So the decline in the song thrush, mistle thrush and starling could suggest problems ahead for the blackbird, which is currently thriving.

Surely there is something that can be done to halt the decline. We harly ever see thrushes in the garden any more it would be a tragedy if the same thing were to happen to blackbirds and one has to ask what species will be next?
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