Skeletochronology of the endangered side-neck turtle, Podocnemis expansa

摘要: Previous preliminary mark–recapture studies, and assessment of carapace length annuli the endangered giant Amazonian river turtle, Podocnemis expansa, have provided some insight into various aspects their population structure overall biology. Many questions still remain, however, particularly pertaining to attainment sexual maturity, nesting age females, longevity individuals. The current study examines feasibility using skeletochronology on bones obtain data these questions, as well acquire individual ontogenetic data. Material for analysis was opportunistically obtained from ‘kitchen remains’ leftovers natural predators. Our results showed that even after being subjected such harsh treatment, all in our sample preserved histological detail. By application skeletochronology, we estimate ages specimens compared favourably with previously. In spite limited size, found a positive relationship between number growth rings length, slower increase body size larger individuals, tentatively suggest maturity may occurred at about 5–6 years age. On basis findings this pilot study, can be effectively used taxon. Furthermore, also reliably permit deductions profile individuals fall prey predators, it has potential assisting development effective conservation strategies.