A third of bird species in the UK could be negatively impacted on by climate change according to research conducted for the British Trust for Ornithology (BTO).
The research is based on a regional survey of 68 species based on population change and the impact of climate change on routes to the UK taken by migratory birds and uses data gathered by the BTO since 1966.
Science Director at the BTO Dr James Pearce Higgins told the BBC ‘we can see from our evidence a reshuffling of bird species’ in which there are ‘some winners that are doing better and some losers that are not doing so well’.
Losing out in this climate lottery are migratory birds, the number of cuckoos visiting the UK has dropped by 80% over the past thirty years, other migratory birds such as swifts and turtle doves have also suffered.
Birds common to the northern uplands are also vulnerable, with the golden plover expected to be extinct in the Peak District by the end of the century.
The winners are birds that can benefit from the UK having warmer winters in recent years. These include buzzards and common garden birds such as robins and blue tits.
The decline in migratory birds is thought to be due to warmer summers meaning there are less invertebrates for them to feed on, the impact of climate change on the countries they visit on the way to the UK is also believed to be a contributory factor.
Speaking to the BBC naturalist Nick Baker said that birds are ‘amazing creatures, adaptable and resilient; but only up to a point’. He called for their habitat to be safeguarded to give them a ‘fighting chance’ at long term survival.
Also speaking to the BBC Dr Alex Bond senior curator of birds at the National History Museum suggested that other issues including ‘habitat fragmentation’ may have impacted on the decline of some species, but climate change was clearly ‘the big one’.
Going on to say that habitat restoration and conservation would help redress the balance; but warned many species may be in a ‘palliative care state’ because the ‘stopping climate change ship has more or less sailed’.
Birds and humans have coexisted for thousands of years winding their way into our art and culture from high poetry to cheery images of robins on Christmas cards. The findings of the BTO show they are also a useful barometer of the harm we are doing to the climate.
Those species that are under threat have been put in that situation by climate change created by humans. Ironically those that are thriving do so because we feed them in return for having them hopping about on our suburban lawns.
I would like to hope that these, as Nick Baker puts it ‘adaptable and resilient’ creatures can survive because our efforts at conserving their habitat will prove to be more than just palliative care.
The message behind the BTO research though is painfully clear, another reminder that time is running out to act on climate change. If we don’t then Spring and every other season may be silent.
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