when non-native plant species dominate, turtles can't excavate a nest, and the sun can't reach their nests. Understand the epidemiology of ulcerative shell disease, the survival rate of affected individuals, and the potential impact to reproductive capacity of infected adults. The Oregon Zoo has been a collaborator since 1998. Invasive plants .
Because of all the variables in the turtle’s life, Bergh said, experts don’t know what causes shell disease. Obtain and improve estimates of in situ hatchlings and juvenile survival rates at each population site. Some adult turtles in the wild are struggling with a shell disease. In 1990, work started to recover Western pond turtles in Washington. Little is known about the history and sizes … It's truly unfortunate because we've done all this great work in terms … The SAFE western pond turtle program and its partners are implementing projects that directly address the threats impacting the species, including head-starting, reintroduction efforts, and the formation of a range-wide conservation coalition throughout its range. A western pond turtle with a radio transmitter is measured, weighed and photographed after being captured as biologists look for turtles suffering from a shell disease. Retrospective review of photographs suggests shell disease was present in western pond turtle populations as early as 2003, when photo documentation was initiated. The disease is most common in young turtles, and symptoms may include a soft shell, broken bones, and weakness. Western pond turtle recovery. Western Pond Turtle Rehabilitation Program.