Page 61 - BBC Wildlife Volume 36 #10
P. 61

NEWS FEATURE











                                                                            The heatwave, while extreme, has

                                                                            not been the only scorcher in recent


                                                                            years. While we cooled of with a choc

                                                                            ice, our temperate maritime habitats

                                                                            sufered. If this is the future, how will


  OUR                SUMMER?                                                our lora and fauna cope?





                                                                            Report by Richard Smyth







                                                                                            his is the year the    conditions, the repercussions
                                                                                            UK sweltered. The      for other species can be serious.
                                                                                            satellite heat-map     “Seed-eaters that rely on the
                                                                                            was a rash of          autumn seed crop might be
                                                                                            red. For six weeks     affected, as many seed-bearing
                                                                                            many of us were        plants are burned off in drought
                                                                           Tsleeping badly and                     conditions,” says Paul Stancliffe of
                                                                            praying for rain – and wild things     the British Trust for Ornithology
                                                                            were also feeling the heat.            (BTO). “Fruit crops may ripen
                                                                              Sustained warm, dry weather          early and be smaller – that
                                                                            tests the resilience of ecosystems     could mean a berry shortage for
                                                                            like few other natural phenomena.      thrushes and migrant warblers
                                                                            Climate change will only make          such as blackcaps.”
                                                                            scorching summers such as 2018,
                                                                            2003, or most famously 1976,           Winners and losers
                                                                            more common. How will plants,          As with many insects, butterflies
                                                                            mammals, birds and invertebrates       were very visible this summer.
                                                                            cope and what might the future         “UK butterflies tend to do very
                                                                            hold as the global temperature         well in hot weather,” explains
                                                                            mean creeps upwards?                   Richard Fox of Butterfly
                                                                              Some challenges are obvious.         Conservation. “It enables them to
                                                                            Hard-baked soil is impenetrable        be active, find mates, disperse to
                                                                            to the bills of insectivorous          new areas and, most importantly,
                                                                            birds – not just the blackbirds        lay eggs for the next generation.”
                                                                            on our lawns, but also breeding          But food plants wither in the
                                                                            waders such as curlews (already        heat. “Drought impacts severely
                                                                            in steep decline).                     on the survival of caterpillars of
                                                                              As earthworms                        the current generation,” continues
                                                                            and other soil                         Fox. “This leads to depleted
                                                                            animals burrow further                    populations in future. After the
                                                                            down in search of cool                       1976 drought numbers of
                                                                            moisture, mammals                              butterflies didn’t recover
                                                                            are also liable to suffer.                        fully until 1984.”
                                                                            Fox cubs and hedgehogs                               There are likely
                                                                            are denied an invaluable                           to be winners and
                                                                            protein source; walkers                            losers – though it’s
                                                                            might find starved moles,                            a delicate balance.
                                                                            forced above ground in search                       “Some are more
                                                                            of alternative food sources.                         drought-sensitive
                                                                              Conservationists are keeping                        than others.
                                                                            a close eye on food-chains: if                         Species such as
                                                                            one link gives way due to dry                          the speckled





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