Previously, no cases of CWD were reported east of the Mississippi River Previously only been detected in two free-ranging Mule Deer from Saskatchewan, one Muleĭeer from South Dakota, and in a number of Mule Deer from the western slopes region ofĬolorado ( 1). Apart from the contiguous areas of Colorado, Wyoming, and Nebraska, CWD had Saskatchewan (Canada), and South Korea ( 1). Before its discovery in Wisconsin, CWD was detected in captive cervid farms inĬolorado, Nebraska, South Dakota, Oklahoma, Kansas, Montana (USA), as well as Alberta, CWD was first recognized in captive Mule Deer in Colorado ( 3) and subsequently described in the free-ranging cervid populations of ColoradoĪnd Wyoming ( 1) prevalence in these disease-endemic areas varies spatially and among the three Signs progress to severe emaciation, extreme behavioral changes,Įxcessive salivation, tremors, and mild ataxia ( 1, 2). In experiments, clinical signs have appeared as early as 15 months afterĮxposure ( 1) and include weight loss, anorexia, repetitive behaviors, hyperesthesia, and Transmitted in deer and elk by direct or indirect contact from the environment ( 1, 2). Although the transmission route of PrP cwd is unknown, it may be Presence of transmissible protease-resistant prion proteins (PrP cwd) ( 1, 2). Hemionus), and Elk ( Cervus elaphus) associated with the White-tailed Deer ( Odocoileus virginianus), Mule Deer ( O. Significant range extension for chronic wasting disease into the eastern United States.Ĭhronic wasting disease (CWD) is degenerative and usually considered to be fatal in Sampling within 18 km showed a 3% prevalence (n=476). Tested positive for chronic wasting disease, a prion disease of cervids. The landscape has changed, Spiegel says, but with careful attention, the once native elk population could be restored in the state of Wisconsin.Three White-Tailed Deer shot within 5 km during the 2001 hunting season in Wisconsin Elk are still relatively new in the state of Wisconsin, so we’re trying to grow them slowly so that we can adjust to conflicts that occur on the landscape.” “We’re trying to set it up like a marathon,” he says. Spiegel says it’ll take a while to reach that goal, but that’s okay. Spiegel says the herd grows by about 10 to 20 percent each year, which slowly pushes the state closer to its population goal of 1,400 animals for the Clam Lake herd. There are now about 460 elk in Wisconsin. That’s when the state imported 25 elk from Yellowstone to establish a herd near Clam Lake. However, another attempt decades later in 1995 proved successful. That resource was very valuable to the people living in the area from a sustainability standpoint.” “So, you’ve got a large animal on the landscape that could feed a lot of mouths or a few mouths for a long period of time. “Part of that issue was that was happening right during the Great Depression,” Spiegel says. The first time, in 1910, failed because of overharvest. Since elk were extirpated from the state in the 1800s, the government has tried several times to reintroduce the species. “The reason we know this is because it actually had a shipping receipt for a meat market that was attached to that animal.” “The last known elk in the state of Wisconsin was killed in 1886, and that would have been west of the Stevens Point area,” says wildlife biologist Josh Spiegel, who manages elk for the Wisconsin Department of Natural Resources. Before European settlers made their way to the Midwest, elk roamed Wisconsin much like they do now in the Great Plains.īut as pioneers built homes, they wiped the animal out of the state.
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