CWD: Interesting article from WY

[Predator_SD]

Huh?? I'm not arguing anything. Someone posted there are twice as many hunters and I was just throwing out statistics.

I corrected my comment.

But i also think you have somehow stumbled across false data. Literally nothing points to Hunter numbers increasing they’ve been on the decline for decades.

 

[Predator_SD]

I think you might want to redo your math.

Redacted, i see that was directed at the other chap.

 

[Predator_SD]

That’s ironic. Whether you emotionally accept it or not, 10% and rising of WI has CWD. 17000 of 321000 is 18%. At that sample size accuracy will be +\- 1.27%. (Mental giants do math to know that). I’m logging off and hope next thread we can have productive conversations on WY mule deer

It’s 5%, you guys absolutely are atrocious at math good god. And ya tossed (mental giants do math to know that)

And ya expect someone to listen about CWD when simple math is lost on yall.

Come on man!

 

[muleyapprentice]

It’s 5%, you guys absolutely are atrocious at math good god. And ya tossed (mental giants do math to know that)

And ya expect someone to listen about CWD when simple math is lost on yall.

Come on man!

Embarrassing, you are correct. Regardless the margin of error is so small that it does accurately represent the population

 

[NRA4LIFE]

I corrected my comment.

But i also think you have somehow stumbled across false data. Literally nothing points to Hunter numbers increasing they’ve been on the decline for decades.

From the DNR. Numbers compared were from total licenses sold in 2023 to 1999 numbers.

 

[CMF]

I see some of @Predator_SD points. Lot's of speculation. They talk about increased mortality, but I don't see where they've proven it's CWD causing the mortality. "It’s still early in the study, which launched in early 2023 with 40 GPS-collared deer. Russell doesn’t even know which of the animals have or had CWD"

It is odd they want to keep density low even when their own data shows it's not helping.

Even while deer numbers have tumbled, the lethal prion disease hasn’t let up, Game and Fish data shows. That suggests that animals are getting it directly from the environment — not each other.

Nevertheless, Gregory doesn’t want deer numbers to increase because of its potential to further exacerbate transmission.

 

[robby denning]

You guys have been dealing with it for a long time. One has to wonder about mule deer being able to rebound like whitetails. Listening to one of Robby's podcasts with a biologist (I think from Wyoming) Muleys can rebound at a 27 percent rate if conditions are ideal. Whitetail are closer to 67 percent. It takes a long time for a muley herd to repopulate.
I am in the cure is possibly worse than the disease camp and do not agree with Idaho's approach at all. I know this is a Wyoming article.

it was the episode with Darby Finley of Colorado, late spring 2024 if I remember.

He's in the heart of CWD.

I still wonder though if we're doing this right....

 

[jmez]

That’s ironic. Whether you emotionally accept it or not, 10% and rising of WI has CWD. 17000 of 321000 is 18%. At that sample size accuracy will be +\- 1.27%. (Mental giants do math to know that). I’m logging off and hope next thread we can have productive conversations on WY mule deer

The 17,000 is irrelevant. It is not randomized. It is confounded data and means nothing. If you want to continue with conjecture you would say the % in the tested deer is much much higher than the wild population. I mean it's only logical that more people would voluntarily submit deer to be tested that they suspected had the disease.

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[Predator_SD]

From the DNR. Numbers compared were from total licenses sold in 2023 to 1999 numbers.

From 1999 to 2023 they are down, way down.

 

[Predator_SD]

I see some of @Predator_SD points. Lot's of speculation. They talk about increased mortality, but I don't see where they've proven it's CWD causing the mortality. "It’s still early in the study, which launched in early 2023 with 40 GPS-collared deer. Russell doesn’t even know which of the animals have or had CWD"

It is odd they want to keep density low even when their own data shows it's not helping.

Even while deer numbers have tumbled, the lethal prion disease hasn’t let up, Game and Fish data shows. That suggests that animals are getting it directly from the environment — not each other.

Nevertheless, Gregory doesn’t want deer numbers to increase because of its potential to further exacerbate transmission.

Yes, it’s my point in a nutshell.

Every thing i’ve ever read going back quite a long time, at least a decade, there is a ton of that kind of speculative type language. But not a lot of proven irrefutable facts.

 

[jmez]

The original article is terrible. The study they highlight, in their words, is in the early stages and not completed. Yet we are using it to jump to conclusions. We don't even know how many of the collared deer have CWD, yet the collard deer are dying at an alarming rate from CWD????

The stated intent of the study is to map migration patterns of CWD affected deer. But we're using it to explain herd decline, hunter satisfaction, and management practices.

Another gem: Because there were no estimates of the Project Herd’s size while CWD ramped up through the 2010s, biologists and others are left to imprecise anecdotes to gauge its population effects. But by all accounts, the disease has walloped mule deer numbers, killing animals at a faster rate than they’re reproducing.

Sure wish I had 2 brain cells to rub together to make some sense of all that good data.

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[wapitibob]

Guaranteed the decline would be from CWD, if we actually had it here.

 

[Speaks]

The 17,000 is irrelevant. It is not randomized. It is confounded data and means nothing. If you want to continue with conjecture you would say the % in the tested deer is much much higher than the wild population. I mean it's only logical that more people would voluntarily submit deer to be tested that they suspected had the disease.

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They specifically only encourage testing in areas of high prevalence. Its far from a representative sample.

Talking about the “WI herd” is kind of silly, like what its like near the IA border has anything to do with the far northern counties.

 

[IdahoBeav]

Guaranteed the decline would be from CWD, if we actually had it here.

It'll be there soon.

 

[Durran87]

I see some of @Predator_SD points. Lot's of speculation. They talk about increased mortality, but I don't see where they've proven it's CWD causing the mortality. "It’s still early in the study, which launched in early 2023 with 40 GPS-collared deer. Russell doesn’t even know which of the animals have or had CWD"

It is odd they want to keep density low even when their own data shows it's not helping.

Even while deer numbers have tumbled, the lethal prion disease hasn’t let up, Game and Fish data shows. That suggests that animals are getting it directly from the environment — not each other.

Nevertheless, Gregory doesn’t want deer numbers to increase because of its potential to further exacerbate transmission.

WI just released the results of a mortality study that collared 1,249 deer.

Wisconsin DNR: CWD Sinking Deer Herds in Disease-Endemic Areas

If you’re seeing too few deer in southwestern Wisconsin for your hunting or viewing pleasure, it’s time to accept the obvious reason: The culprit is chronic wasting disease, the always fatal sickness whose infectious prions now kill more female deer in highly contaminated areas than hunters...

www.patrickdurkinoutdoors.com

 

[NRA4LIFE]

From 1999 to 2023 they are down, way down.

From the WI DNR: 2023, 774369. 1999, 694712. When I was 3 years old, 774369 was slightly greater than 694712.

 

[UPThunderbolt]

Folks, with fur flying in every direction on this topic, I’m very hesitant to join in. That said, I will provide some basic facts that you all can google to inform yourselves on the subject.

1. CWD is a prion disease that destroys brain cells. Once in the environment, it is virtually impossible to eliminate from the environment. It persists for years. The prion can be deposited into the environment through infected urine, feces, blood, saliva, and muscle tissue. The disease can be contracted when healthy animals drink contaminated water or feed on plants grown in contaminated soils. The disease can also be passed from the doe to the in uterus fetus and from one animal to another through mutual grooming.

2. Prion diseases are found in other species. In sheep it is called scrappies. In cattle -mad cow disease. Humans have a few prion diseases including Parkinson’s, Alzheimer’s, and Cruzfield Jacob’s disease (CJD). CJD is the most closely related to CWD and it is always fast progressing and always fatal.

3. Research has shown that while there is a strong barrier to transmission of CWD to humans, it isn’t a 100% block. The chance for humans to contract the disease is very low, but it is not zero.

4. When mad cow disease broke out it was believed that humans could not contract the disease. Eventually 178 people in the United Kingdom died from mad cow disease.

5. Regarding the Wisconsin CWD testing. The primary endemic area is in the southern part of the State. As such, the majority of the testing occurs in down there. Testing is expensive so testing every harvested animal is virtually impossible for any jurisdiction. Now, If you go to Wisconsin’s CWD webpage, you can click on test results, then select results by county, and finally you can select for test results by year. By doing so, you can track the increase over time in selected areas. I suggest you look at the following counties: Columbia, Dane, Iowa, Richland, and Sauk. A couple of those counties had a prevalence rate of over 30% in 2024. That is bad.

This was all very rudimentary and just scratches the surface on the CWD discussion. I hope you all find it helpful.

 

[Predator_SD]

From the WI DNR: 2023, 774369. 1999, 694712. When I was 3 years old, 774369 was slightly greater than 694712.

No man sorry, it’s on the decline. Has been for 20 years now i posted PLENTY of links for ya to check out.

 

[Predator_SD]

Guaranteed the decline would be from CWD, if we actually had it here.


View attachment 835345

And interestingly enough WI DOES have CWD since 2001 and look what Wisconsins deer population trend looks like.

 

[Predator_SD]

Folks, with fur flying in every direction on this topic, I’m very hesitant to join in. That said, I will provide some basic facts that you all can google to inform yourselves on the subject.

1. CWD is a prion disease that destroys brain cells. Once in the environment, it is virtually impossible to eliminate from the environment. It persists for years. The prion can be deposited into the environment through infected urine, feces, blood, saliva, and muscle tissue. The disease can be contracted when healthy animals drink contaminated water or feed on plants grown in contaminated soils. The disease can also be passed from the doe to the in uterus fetus and from one animal to another through mutual grooming.

2. Prion diseases are found in other species. In sheep it is called scrappies. In cattle -mad cow disease. Humans have a few prion diseases including Parkinson’s, Alzheimer’s, and Cruzfield Jacob’s disease (CJD). CJD is the most closely related to CWD and it is always fast progressing and always fatal.

3. Research has shown that while there is a strong barrier to transmission of CWD to humans, it isn’t a 100% block. The chance for humans to contract the disease is very low, but it is not zero.

4. When mad cow disease broke out it was believed that humans could not contract the disease. Eventually 178 people in the United Kingdom died from mad cow disease.

5. Regarding the Wisconsin CWD testing. The primary endemic area is in the southern part of the State. As such, the majority of the testing occurs in down there. Testing is expensive so testing every harvested animal is virtually impossible for any jurisdiction. Now, If you go to Wisconsin’s CWD webpage, you can click on test results, then select results by county, and finally you can select for test results by year. By doing so, you can track the increase over time in selected areas. I suggest you look at the following counties: Columbia, Dane, Iowa, Richland, and Sauk. A couple of those counties had a prevalence rate of over 30% in 2024. That is bad.

This was all very rudimentary and just scratches the surface on the CWD discussion. I hope you all find it helpful.

Nice post UP.

So i followed your suggestion to look closer at the deer population trends of those counties you suggested with the highest CWD Prevelance rates, as high as 30%.

Here is what the WI DNR data shows on those counties:

Columbia:



Dane:



Iowa:



Richland:



Sauk:



So, it would appear that 4 of those 5 WI counties with the highest CWD prevelance rates have shown strong GROWTH in their deer populations since CWD as found in 2001.

Then there is Iowa Cty. You might ask what happened there? If you look at the population numbers Iowa Cty also showed pretty strong growth in their deer population right up until 2019. They took a dip that year, but why? Was it CWD? If it was CWD why all of the sudden in 2019? Well, Iowa Cty had a bad EHD outbreak in 2019-2020. There were a LOT of dead deer around there back then. I found 7 deer carcasses just on the Nature Conservancy land near the Vortex HQ near Barneveld. So i’d bet EHD had a LOT more to do with that dip. But even with that dip the 2023, 2024 population is still higher than it was in the early 2000s when CWD cam on the scene.

So with your provided prevalence data combined with strong deer population growth in all those counties you listed as having a high prevalence a logical person could only conclude CWD has had zero negative impact on the deer herd in those counties.

I mean, i’m all ears if you see it differently somehow?