European pond turtles are declining across central and northern Europe due to habitat loss, nest predation, and temperature-dependent sex determination vulnerabilities under climate change.
Turtles caught in fyke nets set for fish drown if unable to surface for air. Road mortality during nesting migrations causes traumatic injury and death. Hatchlings face high predation during the vulnerable period between nest emergence and water entry. Captive-bred turtles released to boost populations must be properly acclimatised; poorly managed releases result in thermal stress, disease introduction, and failure to establish. Climate warming may skew sex ratios toward females, compromising future reproduction.