About CROS

What is the California Roadkill Observation System?

What is the system designed to do?

This web system can be used to record observations from reporters out in the field who come across identifiable road-killed wildlife. This includes type of animal and/or species is found, where the road-kill was located, when it was found, how long it might have been dead, pictures of the road-kill, and any additional details about road or traffic conditions. The system then displays a summary of this information for different animal groups across the state.

Why do we want this information?

Information about where wildlife vehicle collisions occur, what animals are involved, on what kinds of roads are collisions frequent, and other data can help inform policy, management, and financial investment in reducing road-kill. We will present data back to collaborators on the site and use the data to improve our collective understanding of how road-kills occur and what we can do to reduce them.

Who will use the information?

We are a research organization, so our primary role is to understand the ecological, wildlife behavior, and transportation contributions to this problem. This includes GIS and statistical modeling to predict road-kill hotspots, to measure the contributing factors to road-kill, to quantify impacts, and to estimate benefits of different remedial actions. We also plan to collaborate with other organizations to get funding to support this work and to inform planning of structures and management practices to reduce wildlife vehicle collisions.