Where have all the hedgehogs gone? shutterstock
When the humble hedgehog was crowned “Britain’s national species” in a BBC Wildlife Magazine poll and “Britain’s favourite mammal” in a Royal Society of Biology poll, no doubt, sentimentalised memories of Beatrix Potter’s The Tale of Mrs Tiggy-Winkle, played a role in swaying public opinion.
Ecologist and author Hugh Warwick explained how:
Beatrix Potter managed to sprinkle some magic over the hedgehog, transforming it into the irresistible companion of our gardens.
But despite their popularity, hedgehogs are now something of a rare sight in British gardens – and are in fact disappearing at the same rate as tigers worldwide. Rural hedgehogs in the UK have halved in number since 2000, while urban hedgehogs have declined by a third. More widely, UK hedgehog numbers have dropped from an estimated 30m in the 1950s to under a million today.
So what’s to blame? We are. Well, the changing lifestyles and tastes of people, to be precise. Farming methods have changed dramatically over recent years – becoming increasingly intensive. This has led to the removal of many hedges, an important habitat for the British hedgehog. It has also had negative implications on their main diet of worms, beetles, slugs, caterpillars, earwigs and millipedes.
The country’s roads are also busier. Hedgehog road deaths are estimated to exceed 100,000 a year in Britain. Road networks also cut through habitats leaving hedgehogs isolated, while our gardens are increasingly becoming more humanised. Lawns have been turned into tarmac for cars, foliage has been torn out, decking added, garden borders peppered with slug pellets, and hedges replaced by impenetrable fences and walls. All of which mean that hedgehogs are not only losing their habitats, but also their chances of survival.
Hedgehog friendly gardens
The plight is such that the British Hedgehog Preservation Society and People’s Trust for Endangered Species launched Hedgehog Street in 2011 to encourage people to champion the species and its habitat.
At the RHS Hampton Court Palace Flower Show in 2014, designer Tracy Foster made Hedgehog Street a reality, creating a summer garden to demonstrate “how neighbours can work together to help hedgehogs by providing routes through garden boundaries”. Sharing slogans such as “no one garden is enough” and “make a hole, make a difference”, the hedgehog haven won People’s Choice for Best Small Garden and the coveted RHS Gold medal. The first permanent Hedgehog Street garden was unveiled at RHS Harlow Carr, in North Yorkshire in April 2017.
These images are just stunning.
“U.S. Geological Survey (USGS) scientists and collaborators discovered that long-wave ultraviolet (UV) light directed at the wings of bats with white-nose syndrome (WNS) produced points of distinctive orange-yellow fluorescence. The orange-yellow glow corresponds directly with microscopic skin lesions that define the current “gold standard” for diagnosing WNS.”
Hybridization patterns in two contact zones of grass snakes reveal a new Central European snake species | Scientific Reports
This is amazing news. Natrix natrix -previously thought to be the only grass snake in the UK – has been found to be genetically distinct from what was previously thought to be a variation rather than separate species, the newly named Natrix venaticus. Studies sampled mtDNA from existing skins and specimens and found clear genetic differences between the two, confirming Natrix venaticus as a separate and distinct species. No living snakes were harmed for the study either, which is always good news.
The science is there. Will governments and hunters pay any attention to it?
Roosting in conical leaves reduces the clarity of bat communications – A new zoology thing for curious kids – 2 New Things
“Spix’s disk-winged bats don’t live the standard cave-bound lifestyle we usually associate with flying mammals. The natives of Central and South America generally roost in the thick, curled leaves of plants like calatheas. Weighting in at only four grams, a handful of bats can hide in a single furled leaf, hanging on thanks to the suction-cup disks on their wings and legs that they’re named for.”