In 75 years’ time, the UK could be plagued by fly populations 250% up on today’s levels if forecasts of climate change prove accurate, ecologists have warned. Writing in a special climate change issue of the British Ecological Society’s Journal of Applied Ecology, Dave Goulson and colleagues from the University of Southampton found that if the worst case scenario for climate change occurs - a 5 deg C rise in temperature by 2080 - house fly numbers in the UK could explode.
Studies on the ecological impact of climate change has to date largely focused on butterflies and birds, two groups for which data on distribution and abundance abounds. Until now, ecologists have been less keen to study flies, but says Dr Goulson: “The annoyance and public health risks associated with large populations of flies are considerable, and potential increases in their abundance as a result of climate change are a cause for concern.”
Between January 2000 and December 2003 Dr Goulson and his colleagues monitored populations of calyptrate fly species - including the house fly Musca domestica and bluebottles Calliphora spp. - at six sites in Hampshire, three of which were near landfill sites. Over the four years they set almost 10,000 yellow sticky traps and caught more than 100,000 calyptrate flies.
Becky Allen | alfa
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