December 13, 2010


Fungus out! The frog resistance is here

Frogs across Australia and the US may be recovering from a fungal disease that has devastated populations around the world.

"It's happening across a number of species," says Michael Mahony at the University of Newcastle in New South Wales, who completed a 20-year study of frogs along the Great Dividing Range in Australia for the Earthwatch Institute.

Between 1990 and 1998 the populations of several frog species crashed due to chytridiomycosis infection (chytrid) caused by the pathogen Batrachochytrium dendrobatidis, but Mahony's surveys suggest that the frogs are re-establishing.

New Scientist -
W Zukerman
10 Dec 2010
Photo credit: R Knowles

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Find Cody deer with CWD; Big Horn Basin now has 13 hunt areas confirmed positive

Chronic wasting disease (CWD), a fatal neurological disease of deer, elk and moose, has been discovered in deer hunt area 119, bringing the known total of CWD hunt areas in the Big Horn Basin to thirteen; four new hunt areas (areas 47, 51, 119, 124) were confirmed positive this fall in the basin.

A white-tailed buck from hunt area 119 was confirmed CWD positive by the Wyoming Game and Fish Department’s wildlife disease laboratory in Laramie on November 15, 2010.

The animal was harvested on November 7, 2010, on the LU Ranch south of Meeteetse.

Little Chicago Review -
09 Dec 2010
Location: Big Horn Basin, Wyoming, USA - Map It

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Thermal Imagery Sheds Light on Wolf Disease

Psychedelically colored wolves depicted by thermal imaging will shed light on how mange affects the survival, reproduction and social behavior of wolves in Yellowstone National Park.

About a quarter of the wolf packs in the park are afflicted with sarcoptic mange, a highly contagious canine skin disease caused by mites that burrow into the skin causing infections, hair loss, severe irritation and an insatiable desire to scratch.

The resulting hair loss and depressed vigor of the wolves leaves them vulnerable to hypothermia, malnutrition and dehydration, which can eventually lead to death, said Paul Cross, a U.S. Geological Survey disease ecologist, who leads the project along with Doug Smith of Yellowstone National Park.

USGS Newsroom -
09 Dec 2010
Photo courtesy of U.S. Geological Survey

Photo credit: D Callister/Rex Features
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