Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty
 

Decline In Arctic Fox Numbers Linked To High Levels Of Mercury

BERLIN (UPI) — A dramatic decline in the number of arctic foxes on a Russian island is linked to dangerous levels of mercury in marine prey, researchers say.

On the small Russian island of Mednyi in the North Pacific Ocean, where the foxes survive almost exclusively on sea birds and seal carcasses, researchers said they believe mercury has played a key role in the decline, the BBC reported Tuesday.

The fox population on the island dropped in the 1970s and many of the surviving animals are in poor condition and have low body weight, researchers said.

Writing in the journal PLoS One, the researchers said hair samples from the foxes and the food they eat showed significant levels of mercury, they said.

“They have high levels, compatible with the food, and it could explain the state of the foxes there,” said Gabor Czirjak from the Leibniz Institute for Zoo and Wildlife Research.

“We know it is in the marine environment and it is causing exactly the type of symptoms that were found in this population,” he said.

A comparison with fox populations that live inland, that survive on non-marine birds and rodents, found much lower levels of mercury in the inland animals, researchers said.

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Decline In Arctic Fox Numbers Linked To High Levels Of Mercury”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at newstips@personalliberty.com

Bottom
close[X]

Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to PersonalLiberty.com,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.