Painted turtles and other freshwater turtles suffer high road mortality during nesting migrations, causing population-level welfare impacts that can be reduced through targeted interventions.
Road mortality causes acute traumatic injury and death for turtles crossing during nesting migrations. The suffering of turtles struck by vehicles includes severe trauma from crushing injury that may not be immediately fatal. Female turtles carrying eggs who are killed represent the loss of potential offspring in addition to the individual animal. Population-level impacts from road mortality disproportionately affect adult females, who are the reproductive backbone of turtle populations. Wildlife crossing infrastructure - turtle tunnels under roads with drift fencing directing turtles to safe passage - directly prevents this suffering at relatively modest cost. Motorist behavior modification through awareness campaigns and turtle crossing signs creates broader behavioral change that reduces mortality across large areas.