OK, So CWD has been documented in the wild less than 70 miles from where it shows up on a farm in PA. There are two rehab facilities where they take wild fawns and reintroduce them into the wild, one is less than 20 miles. Is CWD from the farm or is it from the wild?
October 06, 2009|By Gary R. Blockus OF THE MORNING CALL
Thousands of hunters who took to Pennsylvania's woods and fields for the archery antlered deer season opener last Saturday may have unintentionally poisoned the state's deer herd.
Walt Cottrell sounded the alarm loud and clear on Monday morning during the opening session of the two-day quarterly meetings of the Pennsylvania Game Commission at the Holiday Inn near the Sports Complex........
Cottrell, the Wildlife Veterinarian for the Pennsylvania Game Commission, gave a presentation on Chronic Wasting Disease, a disease that affects members of the Cervidae family, which includes deer and elk...........
No cases of CWD have been identified in Pennsylvania, but the disease has been found in 15 states and two Canadian provinces. One of the ways it is spread is through deer urine, which archery deer hunters and some firearms deer hunters use as both a lure and masking scent.
"Saskatchewan has already banned urine lures and nine states are considering it," Cottrell told the members of the commission.
Commissioner Thomas E. Boop of Lycoming County, stating that nine out of 10 archery hunters in Pennsylvania use deer urine as a lure, asked if there is a way for manufacturers to certify that urine is CWD free, but Cottrell said there is not.
"I think a lot of hunters haven't thought about this," said Boop, who asked that the commission issue a warning about using deer urine as soon as possible.
PGC president Gregory J. Isabella of Philadelphia, who represents the Southeast Region, said that he is an archery hunter who has used deer urine in the past, but will stop using it immediately.
Cottrell said he would recommend and support an immediate ban on the use of deer urine, as well as the feeding of deer with food that may have been grown in contaminated soil from other states.
Currently, it is unknown how long the CWD prions, the altered proteins that carry the disease, remain active. ........
http://articles.mcall.com/2009-10-06/sports/4453405_1_deer-hunters-firearms-deer-antlered
A second thing to consider is how young deer, particularly young bucks between 8 and 18 months of age, often disperse from their mother's home range. During his study on the movement activities of white-tailed deer on the Desoto National Wildlife Refuge in Nebraska, Kurt VerCauteren found that dispersing yearling deer traveled as far as 12-15 miles from their former home range; some of the sub-adult does traveled as far as 40 to 50 miles. Chris Rosenberry and others found that 70 percent of the 6-18 month old bucks dispersed from their 3,300-acre study area; 50 percent dispersed an average of 3.7 miles, with some animals traveling as far as 36 miles. One yearling buck tagged in central Minnesota was shot 165 miles from where it was tagged; an adult doe was found 85 miles from where it was tagged.
A third thing to consider is how far bucks may travel during the rut. Dr. James Kroll is reported to have said that bucks in Alberta may occupy a 3,000 -acre core area, and they may travel circuits of 20-25 miles during the rut. We must also consider the fact that CWD may linger in contaminated soil for years. Scientists have found that scrapies can stay in the soil of infected areas for up to three years. This means that, even after the complete removal of infected animals, some areas (particularly wintering areas, and areas where deer are supplied with feed bait, or minerals) may cause new infections several years later.