Newsdate: Tuesday, March 28, 2023 - 11:00 am
Location: BETHESDA, Maryland

The U.S. Geological Survey and the Bureau of Land Management recently released a modeling program that will help managers predict the successes of nonlethal methods for managing wild horses on public lands.

Wild horses lined up in a BLM holding pen

The new open-access modeling tool, PopEquus, can help managers of wild horses compare management methods and their costs.
© 2016 by BLM - Oregon New window.

The new tool, PopEquus, takes peer-reviewed data to model management outcomes for wild horses and their costs. For example, it can predict the population size of a wild horse herd after 10 years if a number of them were given a fertility-control vaccine to prevent pregnancy.

The new program is open access, and managers can use it to compare different management outcomes and costs. “At the USGS, we sought to provide a science-based tool for wild horse and burro managers to inform their decision making,” USGS Research Wildlife Biologist Kate Schoenecker said in a press release.

“Being able to compare outcomes of various management actions and the financial costs of those actions can help managers consider and weigh trade-offs. We hope this tool will be educational for the public as well, as it shows the constraints and intricacies of managing wild horses and burros using real-life scenarios.”

Read more in at the Bureau of Land Management. Access the PopEquus interface here.

Press release by Jesse Pluim/BLM