Showing posts with label MINES. Show all posts
Showing posts with label MINES. Show all posts

Tuesday, March 31, 2015

WILL WHITE NOSE SYNDROME COME OUT OF CAVES AND MINES AS BATS EMERGED FROM HIBERNATION

FROM:  NATIONAL SCIENCE FOUNDATION
Hibernation season over, will disease-ridden bats emerge from caves and mines this spring?

White Nose Syndrome now infects bats in several northeastern U.S. states
Hibernacula, they're called: Places where species like bats hibernate.

Bats by the thousands congregate in such caves and mine shafts, spending their winters away from the elements.

Now they're anything but safe.

Their promixity to one another, along with the caves' and mines' natural humidity, has fueled the outbreak of one of the worst bat diseases in history: White Nose Syndrome (WNS).

First diagnosed in bats in a cave near Albany, N.Y., in 2006, WNS spread from bat to bat, colony to colony, across the northeastern United States.

The disease is caused by the fungus Pseudogymnoascus destructans, which results in a skin infection, a distinctive white growth around the muzzles and on the wings of bats. WNS spreads as bats hibernate in winter.

As of 2012, the disease was linked to some 6.7 million North American bat deaths.

The fungus was likely carried to the United States by humans traveling to and from Europe, scientists believe.

WNS and the skin lesions it causes are widespread in European bats. In Europe's bats, however, no mass mortality has been documented. Why? Researchers are working to find answers.

Back across the pond: From Vermont to Virginia and beyond

In the United States, WNS has been present for several years in Vermont, New York, Pennsylvania, Maryland, Virginia and West Virginia, says biologist Winifred Frick of the University of California, Santa Cruz.

She and colleagues recently published a paper in the journal Global Ecology and Biogeography that details the disease in 468 bat colonies in these six states.

The scientists compared the results with those from 640 colonies in eight European countries: Norway, the United Kingdom, the Netherlands, Belgium, France, Portugal, the Czech Republic and Bulgaria.

WNS infections have been confirmed in all these nations but for Norway, where no surveys have yet been conducted.

"We used four decades of population counts in 16 species of hibernating bats," says Frick, "to determine the effect of WNS on bats in North America compared to those in Europe."

WNS caused a 10-fold decrease in colony sizes of hibernating bats in eastern North America, a dramatic decline across multiple bat species, Frick says.

Most affected, perhaps, is the northern long-eared bat, Myotis septentrionalis. The species is being considered for listing under the U.S. Endangered Species Act. Northern long-eared bats have vanished from some 69 percent of the hibernacula where they were once found.

"Mortality from WNS has placed this bat species in peril," says Frick. "It now appears at significant risk of extinction."

Into the field...or the cave

To obtain information on the status of bat colonies, biologists visit subterranean habitats where bats hibernate during winter--caves, mines, old war bunkers, anywhere that's dark, cool, moist and protected from harsh winds and freezing temperatures.

There scientists count numbers of bats in each species. For the past few decades, such winter censuses have taken place every year or every other year in countries in Europe and North America, says Frick.

In the recent study, she and co-authors focused on bats in the family Vespertilionidae, which has members on both the European and North American continents.

"North America and Europe don't share any of the same bat species," she says, "so we compared bats related at the family level."

U.S. and European bat colonies now similar-sized

The researchers found that declines in U.S. bat populations have resulted in colonies in North America and Europe that are roughly the same size.

"The finding raises the intriguing question of whether hibernating bat colonies in Europe used to be larger prior to the presence of WNS," says Frick. "It hints that disease may be an important hidden force behind basic ecological patterns in bats and other species across continents."

Sam Scheiner, program director in the National Science Foundation's (NSF) Division of Environmental Biology, agrees. Scheiner represents the joint NSF-National Institutes of Health-Department of Agriculture Ecology and Evolution of Infectious Diseases (EEID) program, which funded the research.

"This study provides important insights into how a devastating disease has affected bats in the U.S.," he says. "Such information is essential for developing management plans to help save these species."

The EEID program supports efforts to understand the ecological and biological mechanisms behind human-induced environmental changes and the emergence and transmission of infectious diseases.

The benefits of research on the ecology and evolution of infectious diseases, says Scheiner, include development of theories about how diseases are transmitted, increased capacity to forecast disease outbreaks, and knowledge of how infectious diseases emerge and re-emerge.

Does disease shape species distributions and abundances?

Disease is increasingly recognized as a serious threat to wildlife species, "especially as human travel increases the chance that we could accidentally introduce pathogens [disease-causing microbes] to new parts of the planet," says Frick.

Measuring how infectious diseases may change fundamental ecological patterns is essential for determining effects of these diseases on wildlife species.

"Our study offers the first evidence that disease can change macroecological patterns across continents," says Frick. Macroecology is the study of broad-scale patterns of species distributions and abundance.

Bat losses have widespread effects

Many bats are insect predators. As such, researchers report, they provide valuable "ecosystem services" for humans. Increases in insects like gypsy moths and cutworms--favorite bat meals--have economic consequences.

Cutworms, for example, are destructive garden pests that cause fatal damage to vegetables, fruits and flowers. Until bats swoop to the rescue.

Nonetheless, says Frick, when it comes to important wildlife species, bats are often overlooked.

It's late March and winter hibernacula are opening, their bats beginning to emerge. Without bats, scientists say, the landscape of spring would be a far more insect-ridden, crop-damaged place.

-- Cheryl Dybas, NSF

Saturday, April 5, 2014

REMARKS BY ROSE GOTTEMOELLER ON INTERNATIONAL DAY FOR MINE AWARENESS

FROM:  U.S. STATE DEPARTMENT

Mines Advisory Group's 25th Anniversary: International Day for Mine Awareness

Remarks
Rose Gottemoeller
Under Secretary for Arms Control and International Security 
Russell Senate Office Building
Washington, DC
April 2, 2014


As Prepared
Thank you, Jonathan, for the introduction. I don’t always watch television commercials, but when I do, I prefer that you are in them.

It is an honor to be here and to share the stage with Senator Leahy, Senator Casey, Congressman McGovern, and Ambassador Chedid. My particular thanks go out to Senator Leahy, for hosting this event. Senator, the State Department appreciates your longtime support for U.S. Humanitarian Mine Action programs, including the Leahy War Victims Fund that USAID has managed since 1989 to respond to the needs of civilian victims of conflict.
As we continue to focus our efforts on explosive remnants of war arising from past U.S. military operations, particularly in Southeast Asia and the Pacific, I would like to thank the Senator for his long-standing support of a well-funded Conventional Weapons Destruction program.
I appreciate being invited here by Rich Eisendorf and the MAG (Mine Action Group) America team. I congratulate you on 25 years of assisting post-conflict societies “survive the peace,” by clearing mines and unexploded ordnance that can threaten lives and livelihoods long after the fighting ends.

I know it’s been mentioned, but the event’s photo exhibit is absolutely stunning. Please take a look before you leave. Sean Sutton’s photographs beautifully illustrate not only the hardship and danger that communities face from explosive remnants of war, but also the hope for the future that international assistance provides.

The hope is clear in the photo of the MAG Sri Lanka female deminers that MAG and Sean graciously provided the State Department for the cover of our 2013 edition of our annual report, To Walk the Earth in Safety. These women are clearly devoted to this cause, and the U.S. State Department is proud to fund their work and that of many other deminers around the world who are making their communities safer.

The United States shares common cause with MAG America and all those working to address the harmful effects on civilians from landmines and unexploded ordnance left over from wars. Without the work of MAG America and other clearance operators around the world, these items will remain hazardous to civilians for decades after the end of armed conflict.
U.S. efforts have assisted 15 countries around the world to become free of the humanitarian impact of landmines and have helped to dramatically reduce the world’s annual landmine casualty rate. In 1999, the casualty rate from landmines and explosive remnants of war was just over 9,000 annually – that number dropped to less than 4,000 in 2012.

Since the inception of the Humanitarian Mine Action program in 1993, the U.S. government has delivered over $2.2 billion in aid in over 90 countries to help overcome threats from landmines and explosive remnants of war, as well as the destruction of excess, loosely-secured, or otherwise at-risk weapons and ammunition. We are the world’s single largest financial supporter of Conventional Weapons Destruction programs.

We have provided much of this assistance through non-governmental implementing partners, like MAG. It is their dedication, expertise, and professionalism that make the difference in affected communities and helps us maintain a global reach. Thank you to MAG and all our partners.

Here are a few examples of how they work:
MAG’s commitment to mine action in the hostile environment of Northern Iraq continues to contribute to increased security in that region. MAG was actually one of the first organizations providing assistance on the ground in Libya in 2011.

And in 2013, MAG was the first international NGO to conduct survey and clearance operations in Quang Nam province, Vietnam. This is a testament to your years of excellent work in the region.

In these budget-constrained times, State Department assistance programs are under great scrutiny. However, our support for the clearance of landmines and unexploded ordnance has proven a wise investment that saves lives and fosters stability in every region of the world.
The program helps countries recover from conflict and creates safe, secure environments to rebuild infrastructure; return displaced citizens to their homes and livelihoods; help those injured by these weapons to recover and provide for their families; and promote peace and security by helping to establish conditions conducive to stability, nonviolence, and democracy.
In closing, thank you all, and particularly our host Senator Leahy, for your support for the International Day of Mine Awareness and Assistance in Mine Action. Most importantly, thank you to the professionals around the world in and out of the government who work to reduce the threat to life and limb from landmines and unexploded ordnance.

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