|SREL Reprint #0793|
Survivorship and Longevity of a Long-Lived Vertebrate Species: How Long Do Turtles Live?
Whitfield Gibbons and Raymond D. Semlitsch
A 13-year mark-release-recapture study on natural populations of
freshwater turtles, Pseudemys scripta, of known age indicates that
approximately 1% of the individuals can be expected to attain an age of 20
Probable maximum longevity in natural populations is about 30 years, in
contrast to published estimates of up to 75 years.
Adults follow a Type II survivorship curve with constant rates of
mortality at all ages, as do many other long-lived species that have been
SREL Reprint #0793
Gibbons, J.W. and R.D. Semlitsch. 1982. Survivorship
and longevity of a long lived vertebrate species: How long do
turtles live? Journal of Animal Ecology 51:523-527.