Wisconsin
DNR Announces Primary Results Of Southwest Wisconsin CWD, Deer And Predator Study
MADISON, Wis. (WISCONSIN DEPARTMENT OF NATURAL RESOURCES PRESS RELEASE) – The Wisconsin Department of Natural Resources (DNR) today presented the primary results of the Southwest Wisconsin Chronic Wasting Disease (CWD), Deer and Predator Study to the Natural Resources Board (NRB). A recording of the NRB meeting, including this presentation, is available on the DNR’s YouTube channel.
The purpose of this study was to determine how CWD impacts deer populations. This involved estimating deer survival rates and how they were influenced by CWD.
Fieldwork for this project took place in northern Iowa, Dane and Grant counties. This area was selected for study as it is the region where CWD was first detected in Wisconsin in 2002 and has maintained a high CWD prevalence in the years since.
As part of this study, over 1,200 animals (adult deer, fawns, coyotes and bobcats) were captured, 766 GPS collars were deployed on adult deer and 323 radio tracking collars were placed on deer fawns.
Results
Scientists analyzed data from the sample of collared adult white-tailed deer in order to estimate the differences in annual survival (the probability of surviving from one year to the next) between CWD-infected and uninfected deer. Annual survival estimates are listed in the table below.
Annual Survival Probability
FEMALES
- UNINFECTED: 83%
- CWD-INFECTED: 41%
MALES
- UNINFECTED: 69%
- CWD-INFECTED: 17%
These figures indicate that CWD is substantially reducing the annual survival probability of both male and female white-tailed deer. Reduced female survival lowers the growth rate of the population, and when sufficiently suppressed, may result in population decline.
Specifically, results from this study indicate that when the CWD prevalence rates of females surpasses about 29%, deer populations are expected to begin declining.
Implications
The key takeaways from these results are:
- CWD substantially reduces deer survival rates and suppresses population growth.
- Where CWD prevalence is high, deer populations are likely declining.
- CWD will eventually impact deer populations elsewhere if it continues to spread and increase in prevalence.
If CWD continues to spread and its prevalence continues to increase, populations will likely face further declines. The exact degree of these declines, however, will depend on local harvest and recruitment rates. It is important to note here that researchers do not expect CWD-affected deer herds to become extirpated (completely eliminated in a given area), as deer populations have a strong ability to increase reproduction when deer abundance is lower, due to less competition for food, space and other resources.
The public can learn more about these results by visiting the study’s results webpage.
Looking Forward
It should be noted that the results presented here are the primary findings of the Southwest Wisconsin CWD Deer And Predator Study. Although the scope of this study provides us with a rich dataset from which we can continue to learn about our deer herd and CWD’s impact, there are sure to be more results to come as analysis continues. Additional findings will continue to be released to the public as completed.
To stay informed about these announcements and results from additional analyses on topics like movement, habitat use and predator survival rates, subscribe to the Field Notes Newsletter.
PRESS RELEASE: DNR Announces Primary Results Of Southwest Wisconsin CWD, Deer And Predator Study | Wisconsin DNR
Copyright 2025 WEAU. All rights reserved.
About 1,000 animal welfare activists who tried to gain entry on Saturday to a beagle breeding and research facility in Wisconsin were turned back by police who fired rubber bullets and pepper spray into the crowd and arrested the group’s leader.
It was the second attempt in as many months by protesters to take beagles from the Ridglan Farms facility in Blue Mounds, a small town about 25 miles (about 40 kilometres) southwest of Wisconsin’s capital, Madison.
Dane County Sheriff Kalvin Barrett said in a video statement that 300 to 400 protesters were “violently trying to break into the property” and assault officers. He said protesters have ignored designated areas for peaceful protest and blocked roads to prevent emergency vehicles from entering.
“This is not a peaceful protest,” Barrett said.
The sheriff’s department said a “significant” number of people were arrested out of about 1,000 protesters at the site but did not give an exact total as they were still being processed as of the afternoon.
Protesters tried to overcome barricades that included a manure-filled trench, hay bales and a barbed-wire fence. Some protesters did get through the fence but were unable to enter the facility, where an estimated 2,000 beagles are kept, the Wisconsin State Journal reported.
Wisconsin guard Andrew Rohde reflects on early March Madness exit
Wisconsin guard Andrew Rohde said the Badgers ‘thought we could do so many things’ in the NCAA Tournament before it ended abrupty with an upset loss.
Wisconsin men’s basketball has added a sharpshooting wing via the transfer portal.
Miami (Ohio) transfer Eian Elmer has signed with the Badgers, the team announced April 18. The 6-foot-7 wing will join UW with one year of eligibility remaining.
Elmer averaged a career-high 12.7 points and 5.9 rebounds while shooting 49.8% from the field and 42.9% from 3-point range in 2025-26. His production helped the RedHawks go 32-2 and earn an at-large NCAA Tournament bid.
“We are really excited to add another excellent addition to our spring signees,” UW coach Greg Gard said in a release. “Eian brings a wealth of experience and scoring punch as a 6-7 wing. … A terrific shooter, his skillset and production fit excellently into our plan as we build out next year’s team. Throughout our evaluation process, our staff loved his size, power and skill and truly believe he will thrive in our system.”
Elmer is Wisconsin’s third transfer portal addition since the end of the 2025-26 season, joining former George Washington guard Trey Autry and former Hofstra forward Victory Onuetu. UW also added Australian guard Owen Foxwell.
The additions of Autry, Onuetu and now Elmer leave Gard’s staff with three more roster spots to fill ahead of the 2026-27 season.
The Badgers are looking to replace much of their production from a 2025-26 team that went 24-11. Nolan Winter is expected to be the team’s only returning starter after John Blackwell and Aleksas Bieliauskas entered the transfer portal and Nick Boyd and Andrew Rohde exhausted their eligibility.
MILWAUKEE – Friday’s severe storms have passed. And with that, the threat of any severe weather has also passed for the immediate future as no storms or rain are expected for several days.
However, plenty of damage remains across southeastern Wisconsin as of Saturday morning, in addition to the ongoing flooding threat.
Several area rivers are at flood stage, and there are multiple river flood warnings in effect.
FOX6 Weekend WakeUp on Saturday begins at 6 a.m.
On the scene in the morning
What we know:
Farmstead damage in Franklin
FOX6’s Hayley Spitler is in Franklin on Saturday morning, April 18, getting a daylight look at the damage from last night’s storms.
Storm damage in Caledonia
Friday’s storms left quite the mark across southern and southeastern Wisconsin, including at L and L Farms and Greenhouse in Caledonia.
FOX6 Weather Extras
Local perspective:
Meanwhile, FOX6Now.com offers a variety of extremely useful weather tools to help you navigate the stormy season. They include the following:
FOX6 Storm Center app
FOX LOCAL Mobile app
FOX Weather app
Maps and radar
We have a host of maps and radars on the FOX6 Weather page that are updating regularly — to provide you the most accurate assessment of the weather. From a county-by-county view to the Midwest regional radar and a national view — it’s all there.
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School and business closings
When the weather gets a little dicey, schools and businesses may shut down. Monitor the latest list of closings, cancellations, and delays reported in southeast Wisconsin.
FOX6 Weather Experts in social media
The Source: Information in this post was compiled by the FOX6 Weather Experts.
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