Special Event Permit Detail

Application Information

ID: 5962   Event: CSU Scavenger Project
Application Date: 02/15/2022    Event Date: 04/15/2022   Thru: 04/15/2023
Organization: Colorado State University   Phone:
Contact 1 Name: Kelly Russo
Address: 1474 Campus Delivery
Fort Collins CO 80524
Email: Send email
Contact 2 Name: George Wittemyer

Email: Send email

Event Information

Permit Type(s): Parks and Open Spaces
Type of Event: Research
Devil's Backbone Open Space,Eagle's Nest Open Space,Horsetooth Mountain Open Space,Red Mountain Open Space,River Bluffs Open Space,Other Larimer County Open Spaces

Chronic wasting disease (CWD) is a highly transmissible and fatal prion disease of cervid species, including mule deer (Odocoileus hemionus), whitetail deer (Odocoileus virginianus), elk (Cervus elaphus), and moose (Alces alces). Monitoring the spatial and temporal course of disease spread is of interest to various stakeholders, including wildlife managers and hunters. It has been previously suggested that scavengers, particularly avian scavengers, could translocate infectious prions to novel environments (Fischer et al., 2013) as infectious prions were proven to pass through the digestive tracts of American crows (VerCauteren et al., 2013). With this in mind, we aim to elucidate which Colorado scavenger species may have higher probabilities of perpetuating or sequestering CWD based on 1) the parts of mule deer, elk, and whitetail deer carcasses consumed and 2) the competitive interactions and behavioral dynamics between scavenger communities at these carcasses. Additionally, we plan on conducting medial retropharyngeal lymph node (MRLN) sampling of carcasses in the study, purely to assist a study partner in the training of his technicians on the protein misfolding cyclic amplification (PMCA) disease assay equipment.

If a carcass is found on or near a road, it will be moved to a safe location on a right of way (ROW), preferably out of view of the public. If the ROW is not ideal for camera placement, the carcass may be moved. For Larimer County properties, this might involve shifting roadkill off of the adjacent roadway and onto county property in order to maintain motorist and scavenger safety, as well as reduce carcass disturbance. In these instances, the carcass will be moved 25-100 yards from the adjacent roadway. Additionally, carcass placement onto county properties is of interest. Care will be take when selecting locations for carcass placement such that impacts to recreationalists, livestock, county property tenants will be minimized and all seasonal closures will be respected. All sites will be cleared with the appropriate county officials prior to carcass placement, pending approval of this permit. Additionally, carcasses will be placed no closer than ~1 km from any other active carcass in the study.

1-2 cameras will be placed per carcass. All cameras should be facing north on a tree or t-post that is ~5 meters away from carcass, at a height of ~1.5 meters, angled downwards at ~70 degrees. As stated in Snow et al. 2016, the field of view associated with this set-up is approximately 12 meters by 8 meters. If a due north-facing (0 degree) camera placement will result in faulty camera triggers by vehicles or human activity, up to a 10-degree deviation from due north will suffice.

Each intact carcass will be held in view of camera by a wire that is secured behind shoulders connected to a piece of rebar that is driven into the ground, decreasing the chance that the carcass will be dragged out of the cameras’ field of view (Allen et al., 2014; Steigler et al., 2020). Care will be taken to ensure the wire is close to the ground to obscure its visibility. Only the vegetation that is directly in the path of the cameras will be cleared, ideally reducing false triggers.

Cameras will initially be checked once a week to ensure the cameras are operational and that the SD cards and battery levels are appropriate. Once little is left of the carcass and it is no longer attracting scavengers (Steigler et al., 2020), we will pull the cameras and all additional equipment.

The study aims to place cameras out on a minimum of 50 individual carcasses over the course of the next 1-1.5 years, though all 50 will not be placed exclusively on Larimer County properties. We are looking for permission to utilize county property for approximately 10-20 carcasses, which would be comprised of a combination of carcasses moved 25-200 yards from adjacent roadways onto county property and the individual placement of carcasses onto pre-approved county locations. Study activities will occur sporadically throughout the dates specified in the permit, and will occur between the hours of 8am and 5pm. Prior notification to the appropriate entities will occur before accessing County properties, if required.

Attached are the approved IACUC wavier from CSU, the over-arching study area, and literature cited within this description.

The research conducted for the CSU CWD and Scavenger Project is in line with Larimer County's Guiding Principles, especially

Estimated Participants: 3   Estimated Spectators: 0

Food / Alcohol:
  Food is NOT being Served.
 Alcohol is NOT being Served

   Fri. 04/15/2022: 8 AM - 5 PM
   Sat. 04/16/2022: 8 AM - 5 PM
   Sun. 04/17/2022: 8 AM - 5 PM
   Mon. 04/18/2022: 8 AM - 5 PM
   Tue. 04/19/2022: 8 AM - 5 PM
   Wed. 04/20/2022: 8 AM - 5 PM
   Thu. 04/21/2022: 8 AM - 5 PM


Additional Information Submitted by Applicant

1. Date Submitted: 03/24/2022
Signed permit attached!

Reviewing Agency Comments/Status

Email the Special Events Coordinator regarding this application.

Parks & Open Lands

Status: Approved

Comments: Signed worksheet - JW 3/24/22

Approval from program manager to start project earlier than initial request on 3/25/2022 (per Zac Wiebe/Stephen Gibson)

Email Parks & Open Lands

Risk Management

Status: Approved

Comments: Approved with the CSU Certificate of Insurance on file for the 2021-2022 policy period. I will update with 2022-2023 COI when received. Thank you!

Email Risk Management

Final Disposition


Hi Kelly and George,

Your special event permit application has been approved. Pleas print the permit and have it available for the duration of the event.

Your approved event shall comply with all Center for Disease Control, State of Colorado and Larimer County Health Department guidelines and rules for social distancing and maximum crowd size that are in place at the time of the event"

Enjoy the rest of your day!