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Wolves at the Door (And Bears, and Lynx)

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Wolves at the Door (And Bears, and Lynx) WOLVES AT THE Europe’s big carnivores are back and causing a rumpus. Henry DOOR Nicholls reports (AND BEARS, AND LYNX) MIHA KROFELMIHA 40 | NewScientist | 9 August 2014 140809_f_Big Beasts.indd 40 04/08/2014 11:13 OBODY will ever know why Slavc species on which carnivores depend. “The abandoned his family. But in the winter carnivores didn’t hang around,” says John Nof 2011, the young male wolf left his Linnell of the Norwegian Institute for Nature home territory and began an epic trek. He had Research in Trondheim and a member of spent the first years of his life meandering the International Union for Conservation of through the forests of southern Slovenia, Nature’s Large Carnivore Initiative for Europe. occasionally straying into Croatia. Then, as “They just said ‘thank you’.” Christmas approached, he struck out towards As well as natural expansion there were the north, alone. also some deliberate reintroductions – lynx Slavc was one of an estimated 4000 wolves to several areas of central Europe in the 1970s living on the Balkan peninsula of south- and 1980s, for example, and bears to the eastern Europe, a continent not usually known Pyrenees and Italian Alps in the 90s. With a for its big, fierce predators. Twenty years ago few exceptions, populations are now stable that was quite right, but no longer. Europe – or growing (see maps, page 43). the most urbanised, industrialised and farmed Wolves in particular continue to recolonise continent on Earth – is now home to some former territories. In 2012, birdwatchers in Thy 12,000 wolves, 17,000 brown bears and 9000 National Park in northern Denmark reported Eurasian lynx. To put that in perspective, seeing the first wolf in the country for some there are as few as 32,000 lions left in Africa 200 years. A few weeks later it was found and fewer than 2000 tigers in India. dead, apparently from natural causes. DNA The return of Europe’s big three is an analysis showed that it had come from a pack uncelebrated conservation success story. inhabiting the borderlands between Germany But as these charismatic mammals recolonise and Poland, almost 1000 kilometres away. places they disappeared from long ago, But it hadn’t come alone. It is thought age-old tensions between man and beast that there are now at least three wolves in are starting to return. Can humans and wild the country. And if wolves can re-establish predators really live alongside each other in themselves in the fragmented habitat of harmony in Europe? Denmark, they can probably do it anywhere. Several months before Slavc left home, ecologists had fitted him with a GPS collar programmed to send its position seven times Hiding in the dark a day. By the middle of December, it was clear One of the challenges of counting large he had left home for good. carnivores is their secretive and mainly “We knew something was different because nocturnal nature. “These animals are masters he had crossed two large motorways far at being there but not being seen,” says outside his home territory,” recalls Hubert Linnell. “Lynx, especially, are invisible.” Potocˇnik, a biologist at the University of In a 20-year career he has only ever seen lynx Ljubljana in Slovenia. At one point the collar while capturing them to fit radio collars. pinged a signal from the centre of a town As a result, there are arguments over how called Vipava. Potocˇnik was worried that the many animals are actually out there. Head wolf had been shot. But just as he was about counts are impossible so researchers have to to call the police, another signal showed that make use of indirect methods, which usually Slavc was on the move again. means working with faeces. “You pick up A week later, having travelled some a piece in the woods and you go home and 200 kilometres north, Slavc crossed into A wolf in Slovenia work out which species, which sex, which Austria. On New Year’s Eve he reached the with a GPS collar (left); individual it is,” says Linnell. river Drava. That night Potocˇnik received two wolves approach a Slovenia, for example, has a network signals, one from the south bank and one from bear in Finland (below) of some 2500 foresters, hunters and > the north. Slavc had swum across the river. Bears, wolves and lynx were once widespread across Europe – including the British Isles – but centuries of hunting, persecution and habitat destruction took their toll. Reliable numbers are hard to come by, but by the mid-20th century, the big three had effectively been exterminated everywhere except for small, precarious populations on the continent’s wildest fringes. In the 1970s, however, there was a U-turn EPL in attitudes. The environmental movement R raised awareness of the predators’ plight ATU N and laws protecting them came into force. By happy coincidence, changes in land use after the second world war – particularly reforestation – led to a boom in the prey RAUTIAINEN/ LASSI 9 August 2014 | NewScientist | 41 140809_f_Big Beasts.indd 41 04/08/2014 16:44 Numbers of the beasts Europe is now home to approximately 40,000 large predatory mammals Strongly increasing Increasing Stable Decreasing Strongly decreasing Wolf populations Slavc the wolf’s epic Brown bear populations Eurasian lynx populations Total ~12,000 journey of the winter ALPS Total ~17,000 Total ~9000 KARELIAN of 2011-2012 SCANDINAVIAN KARELIAN SCANDINAVIAN KARELIAN SCANDINAVIAN New Year’s Permanent 150-165 Permanent 3400 1700 Permanent ~1800-2300 2430-2610 260-330 Eve 2011 Occasional February 2012 AUSTRIA Crosses the Occasional Occasional Crosses into Italy River Drava BALTIC Toblach Ski Resort 710 Late BALTIC BALTIC December CENTRAL EUROPEAN 870-1400 SLOVENIA BOHEMIAN-BAVARIAN ~1600 LOWLANDS Enters ~50 Austria ~150 ITALY VOSGES PALATINIAN April CANTABRIAN ALPINE NORTH-WEST IBERIAN Regional Nature LJUBLJANA 45-50 CARPATHIAN ~19 CARPATHIAN Mid-December 195-210 2500 Park of Lessinia ~7200 CARPATHIAN 3000 Vipava JURA ~2400 100 ALPINE EASTERN BALKANS ALPINE March PYRENEAN 280 ~600 ~130 DINARIC- Verona Outskirts of Verona CROATIA 22-27 CENTRAL BALKAN SIERRA MORENA BALKAN APENNINE DINARIC 40-50 Early winter 2011 Possibly extinct 3900 50km 37-52 DINARIC-PINDOS 120-130 ITALIAN PENINSULA Slovenia-Croatia border 3070 600-800 SOURCE: EUROPEAN COMMISSION volunteers who collect scats, urine and other human land-use or activity… are virtually are impossible to obtain but unofficial samples such as hair and saliva swabbed off non-existent in Europe”. estimates suggest that between 50,000 and dead livestock and send them to Potocˇnik’s That seems to suit the animals just fine. 100,000 livestock, mostly sheep, are killed colleague Tomaz Skrbinsek. By analysing the “I don’t think there’s anywhere they couldn’t each year. Bears also cause costly damage to DNA, it’s possible to estimate population size. live if they were allowed to,” says Linnell. Even bee hives, orchards, vehicles and buildings. The latest data suggests that the country’s wolf cities aren’t off limits: in Brasov, Romania, “The situation is getting worse,” says Pekka population has remained stable over the past bears make frequent, bold visits to gorge Pesonen, secretary-general of Copa-Cogeca, three years, at around 40 to 50 individuals in themselves on garbage. In 2008, a 20-year-old the voice of farmers in the EU. nine or 10 packs. man was killed by a bear in the city centre. GPS readings like those from Slavc’s collar As Slavc headed across Austria, through yield other insights. “Everyone thinks these farmland, villages and around the edges of Fences and guard dogs animals live in the forest and they don’t towns, Potocˇnik became increasingly anxious Governments pay out millions of euros a move,” says Linnell. “Yet every time you put on that he would have a run-in with farmers. year in compensation for these losses, which a collar and track them you find these animals The concern is a real one, especially for may explain why initiatives are being rolled cover huge areas.” A single lynx, bear or wolf wolves, which have the biggest impact on out across Europe to encourage farmers can cover 1000 square kilometres or more. livestock. Bears and lynx will also take to reintroduce old methods of protection, In heavily populated Europe, that inevitably livestock, but because they are solitary and notably fences, guard dogs and shepherds. means coming into contact with people. only tend to pick off one animal at a time There are, however, limitations to these As the Large Carnivore Initiative for Europe’s they don’t generate the same hostility. measures. Putting up fences in mountainous manifesto puts it: “wild areas without The impact can be costly. Exact numbers or forested terrain is impractical, electric KNOW YOUR WILD BEASTS EURASIAN LYNX (see left) EURASIAN BROWN BEAR EURASIAN WOLF (Lynx lynx) (Ursus arctos arctos) (Canis lupus lupus) A medium-sized cat distributed Europe’s largest native Europe’s most widespread and patchily across Eurasia from carnivore, though it eats fruit, successful large mammalian the western Alps to Siberia. nuts, vegetables and honey carnivore, and also its most Adult males are about the size as well as meat. An adult male controversial. of a golden retriever. Not to be can weigh up to 320 kilograms. Danger to humans? Yes. confused with the critically Danger to humans? Yes. Though Western Europe endangered Iberian lynx, which Attacks are rare but do happen, hasn’t seen an attack by is confined to southern Spain. mostly in Romania. a wild wolf for decades. Danger to humans? No. Best place to see: Eastern Best place to see: The plains Best place to see: A zoo.
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