The autumn and winter of 2015 has seen some unseasonably mild weather with day time temperatures remaining in double figures far longer than usual – and even night-time temperatures have remained very high. 2015 is now the warmest year on record, thought to be the result of man-made climate change and El Nino. This mild weather has affected wildlife and the natural world at many of our places.
Strawberries are still fruiting in gardens in Devon and in the Chilterns our ranger team has seen flowers on holly trees, cherry trees in blossom, rooks starting to nest and the grass continuing to grow.
Crowd pleasers such as snowdrops and daffodils are flowering at Anglesey Abbey in Cambridgeshire. While on the South Downs, catkins are already opening on hazel trees and hawthorn has been spotted coming into flower.
Pete Brash, an animal ecologist for the National Trust, said: “The weather has been ridiculously mild which is having an impact on our wildlife. We’ve seen swifts, swallows and sand martins and there are a number of flowers in bloom very early including dandelions and even cowslips.
“As we’re seeing the effects of climate change on our winters, nature is simply taking a gamble. If the swallows, for instance, can find sufficient food to maintain good condition then they can be first on the best territories ahead of breeding season next year. But, they have to weigh up the associated risks of staying and not being able to find sufficient food and warmth versus the risks of travelling 3000 miles.
“What could be a worry, however, is that long-range forecasts are predicting that January might see considerably colder weather on the way, which could cause problems.”