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.

The turtles may appear outwardly healthy, but CT scan can show severe lesions. They were once locally common to abundant in South Puget Sound, but had become essentially extirpated from the region by the 1980s. If detected early, the disease is reversible with correction of diet and lighting, while more advanced cases may require prescription supplements. Western Pond Turtle (Clemmys marmorata) also known as the Pacific Freshwater Turtle, Pacific Pond Turtle, Pacific Mud Turtle, and Pacific Terrapin Tortuga Estanque Del Oeste - en Español Species Code: CLMA Description: The coloration of the western pond turtle ranges from brown to black on the carapace (the upper shell), with lighter marbling visible close up.
A newly discovered fungus is thought to be causing a shell disease that is harming freshwater turtles, including western pond turtles in the Columbia River Gorge. ©Dan Woodburn Several years back Terio and her co-authors had been finding a number of lesions in the shells of species like red-eared sliders ( Trachemys scripta elegans ), western pond turtles ( Actinemys marmorata ) and even mata mata turtles ( Chelus fimbriata ) from South America. Shell disease. Lesions caused by the fungus Emydomyces testavorans on the shell of a western pond turtle. So now they are trying to control those variables and find the cause. The western pond turtle (Actinemys marmorata) is a state listed endangered species and one of only two native turtles in Washington State. …