Farming runoff linked to deformities in frogs

first_imgWASHINGTON – The growing number of deformed frogs in recent years is caused at least partly by runoff from farming and ranching, new research indicates. Nitrogen and phosphorous in the runoff fuel a cycle that results in a parasitic infection of tadpoles, resulting in loss of legs, extra legs or other deformities, according to researchers led by Pieter Johnson of the University of Colorado, Boulder. Their findings are being published in this week’s online edition of Proceedings of the National Academy of Sciences. The deformed frogs have been a puzzle for more than a decade, since a group of Minnesota schoolchildren discovered a pond where more than half of the leopard frogs had missing or extra limbs. Suggested causes have ranged from pesticides and increased ultraviolet radiation to parasitic infection. While parasite infection is now recognized as a major cause of such deformities, the environmental factors responsible for increases in parasite abundance had largely remained a mystery, Johnson said in a statement. The parasites, called trematodes, have a series of host species. They grow in snails and become infectious when released by the snails into ponds, where they can infect frog tadpoles. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!last_img read more


first_imgThe three charities to benefit from this year’s North West 10K are the Donegal Down Syndrome Association, MS Ireland Donegal Branch and the Buddy Bear Appeal.Details of the race were announced last night at a function attended by both the Lord Mayor of Letterkenny Gerry McMonagle and the Mayor of Donegal Noel McBride.Further details of the event, which takes on Sunday, May 6th in Letterkenny, will be announced soon. To date, the event which first started in 1996, has raised over a staggering €500,000 for local charities.  NORTH WEST 10K COMMITTEE ANNOUNCE LUCKY CHARITIES was last modified: March 13th, 2012 by StephenShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window) Tags:North West 10klast_img read more