Wednesday, 28 March 2018
Tiny victims of roadside litterbugs: Three million mice and voles die trapped in bottles and cans thrown from cars
Sunday, 7 April 2013
Vole Population Booms on the Decline in Europe
Monday, 9 July 2012
Rodents make vole hills out of Swiss mountains
An extraordinary invasion of voles has caused extensive damage to farmlands in the Jura, damaging crops and testing the patience of local farmers.
For the past two years, farmers have complained of the extraordinary invasion of voles in the Jura mountains. At the height of spring, their numbers were estimated at 1,000 animals per hectare, newspaper Tribune de Genève reported.
The rodents’ arrival, labeled a “swarm” by Vincent Wermeille, a farmer and member of the Grand Council of the Jura, has destroyed crops and caused millions of francs worth of damage.
The invasion has affected all peaks in the canton, Jean-Paul Lachat, head of the Centre of Rural Economy of the Jura, told the newspaper. With the crisis at its height, not even the extensive laying of traps helps to keep numbers down, he added.
Even the football pitch at Saignelégier has become unplayable after the animals wrecked the ground, leaving mounds all over and the surface unstable.
Last year, the voles ate every single blade of grass from certain fields.
“The fields were brown, it was like a desert,” farmer Rudolph Ackermann told the newspaper.
Some had got so fat, they no longer took their own tunnels, instead preferring to wander along the roads.
Even though the farmers have planted seedlings to replace some of the grasses eaten by the voles, certain fields are only expected to give some 50 percent of their yields.
"Some farmers are already at the wire," Wermeille told the newspaper. “The problems will come in November or December when there won’t be any grass left."
The farmers fear the worst once more, and worry about the cost of buying cattle feed from neighbouring France, as they were forced to do last year. The breadth of the problem also raises concerns that the price for alfalfa, bought as a replacement for the missing haystacks, will rise if everyone buys at the same time.
Farmers are now seeking help from Bern, wanting indemnification for the damage caused. But Denis Morand from the Federal Office for Agriculture advised that the extent of support demanded by the farmers could not be given.
Lyssandra Sears (news@thelocal.ch)
Wednesday, 16 June 2010
Sexually rampant voles ruin Yorkshire village's tourist trade
METRO REPORTER - 16th June, 2010Visitors to Flaxton in north Yorkshire are being forced to take a 10km (six-mile) diversion because of a colony of breeding water voles.
The village’s shops and pub are suffering a trading slump after bridge repairs had to be suspended until the autumn – when the voles have finished mating.
Landlady Lorraine Ritchie, of the Blacksmith’s Arms, said: ‘We’re losing £700 a week and this is the busiest time of the year. We’ve come through the recession and we can’t get on.’
http://www.metro.co.uk/weird/831209-sexually-rampant-voles-ruin-villages-tourist-trade
Wednesday, 5 May 2010
Watch out Mr Toad, Ratty's eating frogs
05 May 2010 13:28 GMT
LONDON (Reuters) - British ecologists have discovered evidence that normally herbivorous water voles living alongside canals and rivers have been eating frogs' legs this Spring.
The timid water vole, immortalised as "Ratty" in the "Wind in the Willows" children's novel and films, is Britain's fastest declining mammal and is known to have a largely vegetarian diet consisting of grass and plants.
However, a survey along the Kennet & Avon Canal in the southern English county of Berkshire has revealed that these shy, furry animals have developed a taste for continental cuisine and have been snacking on frogs' legs, as well as the odd snail, British Waterways said in a statement on its website.
British Waterways ecologist Robert Randall said his team found a number of typical water vole feeding areas that were littered with dead frogs, minus their legs.
"We're not really sure why it's happening, but as the evidence coincides with the water voles' breeding season, we think it may be that pregnant mothers are snacking on frogs' legs as they lack protein in their diet," he added.
"This is incredibly unusual behaviour and as far as we know this is the first recorded evidence we have of them eating frogs' legs, so it's a really exciting discovery."
British Waterways asked people to report any water voles they see or any other wildlife activity in the country's canals and rivers on its website at www.waterscape.com/wildlifesurvey.
(Reporting by Paul Casciato; Editing by Steve Addison)
http://news.stv.tv/oddly-enough/175140-watch-out-mr-toad-rattys-eating-frogs/
Voles' frog food
British water voles have been eating frog's legs.
Researchers in Berkshire, England, were stunned to discover a group of the rodents have been dining on the tasty treats - typically served as a delicacy in French restaurants - possibly as a way of getting protein into their usually vegetarian diet.
Ecologist Oda Dijksterhuis said: "We found a number of typical water vole feeding areas that were littered with dead frogs, minus their legs.
"As a water vole's diet is normally vegetarian, this rather gruesome scene isn't what we'd expect to find at all."
Numbers of water voles are decreasing in the UK, with as little as 220,000 thought to now live there - down from eight million in 1960.
http://entertainment.stv.tv/showbiz/175179-voles-frog-food/
Sunday, 6 December 2009
Researchers create first transgenic prairie voles
Researchers at the Yerkes National Primate Research Center, Emory University, have successfully generated the first transgenic prairie voles, an important step toward unlocking the genetic secrets of pair bonding. The future application of this technology will enable scientists to perform a host of genetic manipulations that will help identify the brain mechanisms of social bonding and other complex social behaviors. This advancement may also have important implications for understanding and treating psychiatric disorders associated with impairments in social behavior. The study is available in the December issue of Biology of Reproduction.
Lead researcher Zoe Donaldson, PhD, and her colleagues adapted transgenic technology to the prairie vole, a naturally occurring monogamous rodent that is being used to discover the brain mechanisms underlying monogamous pair bonds.
"Domesticated lab rats and mice dominate biomedical research, but wild rodent species with more complex social behaviors are better suited for investigating the biology of the social brain. Until now, genetic engineering among rodents has been limited to lab mice and rats," says Donaldson.
Single-cell prairie vole embryos were injected with a lentivirus containing a gene found in glowing jellyfish. The gene encodes a green fluorescent protein, which glows under the appropriate conditions. The prairie vole that developed from this embryo expressed the green fluorescent protein throughout its body, and the foreign gene was passed on to the offspring for multiple generations.
Larry Young, PhD, a Yerkes-based senior investigator on the study and an expert in social behavior, will next use this technology to determine whether monogamy and its associated social behaviors can be affected by manipulating a single gene. Researchers are also investigating ways to refine this technology in order to alter gene expression in certain brain regions as well as at certain developmental milestones.



