Chronic Wasting Disease in Iowa Deer

Chronic Wasting Disease (CWD), a contagious neurological disease impacting deer, is caused by prions that results in severe weight loss, behavioral changes, and ultimately death in affected animals. CWD affects deer behavior and population dynamics, which in turn impacts ecosystem health and stability. Deer can be found throughout Iowa, including within city limits, making this topic relevant to all students.

thin deer with slightly bent legs in a field with tall green grass.

Image

Appanoose County

Driving Question

What characteristics or behaviors might indicate that this deer is healthy or unhealthy compared to other deer you have seen?

Probing Questions

How does a sick deer look compared to a healthy deer in terms of appearance?
What features indicate a deer is sick?
What do you think could be some possible reasons for the sickness in our Iowa deer?
How might the health of the deer affect the ecosystem in Iowa?
What observations can you make about the deer in the picture? What details stand out to you?
If you were a wildlife biologist, what questions would you want to investigate further regarding the health of the deer?

Classroom Suggestions

Students could:

Conduct a close examination of the sick deer photo. Ask students to observe and note any visible signs of sickness, behavior, or environmental factors in the image.
Discuss what other animals or plants are nearby.
Brainstorm what might have caused the deer to become sick.
Compare this photo to another deer photo of a healthy deer.
Gather data and formulate hypotheses as to what contributes to a healthy ecosystem.
Analyze relevant data using the resources on deer populations and the ecological consequences of CWD.
Use resources such as articles, videos, and scientific journals to research common diseases in deer and their causes. They can explore factors such as habitat, diet, and environmental changes that impact deer health.
Work in a group to discuss their research findings and create presentations.
Conduct a scenario role-playing activity where students assume the roles of wildlife biologists, veterinarians, and environmental scientists to simulate an investigation of the sick deer.
Participate in a field trip to a local wildlife reserve or rehabilitation center where students can learn about animal care, disease testing, and ecosystem management.
Speak with an Iowa DNR ranger, or disease outreach specialist to discuss CWD.

Resources

PBS LearningMedia | UNTAMED: The Wildlife Center of Virginia: This collection of resources focuses on ecosystems and wildlife health, featuring videos, lesson plans, and interactive activities. It helps students explore the impact of environmental changes on animal health, specifically addressing diseases in wildlife.
Iowa Department of Natural Resources (Iowa DNR) | Chronic Wasting Disease: This resource offers comprehensive information about CWD, its effects on deer populations in Iowa, and management strategies. It includes educational materials and guidelines for reporting sick animals.
Iowa State University Extension | Chronic Wasting Disease: This site provides access to research findings and educational resources related to CWD in Iowa. It includes publications, outreach materials, and information on the significance of CWD in local deer populations.
US Geological Survey | Chronic Wasting Disease (CWD) Simulation App: The CWD Simulation App developed by the U.S. Geological Survey is an interactive tool designed to educate users about CWD and its impacts on deer populations. This simulation allows users to explore various scenarios related to the spread and management of CWD within a virtual deer population.

Contributors

Submitted by Ashley Johannsen.