Data on nesting, incubation, and hatchling emergence in the two native aquatic turtle species (Emys orbicularis and Mauremys leprosa) from Doñana National Park

Research in Doñana National Park reveals significant differences in nesting, incubation, and hatchling emergence between two native aquatic turtle species: Emys orbicularis and Mauremys leprosa. The study found that both species can lay at least two clutches from May to July, with distinct incubation periods—83 days for E. orbicularis and 46-53 days for M. leprosa. Incubation temperatures also varied, with E. orbicularis eggs developing at a cooler 24.7°C compared to the warmer 28.7°C for M. leprosa. Notably, all hatchlings of E. orbicularis remained in the nest until extraction in October, whereas M. leprosa hatchlings emerged within one to twelve days post-hatching, with some remaining in the nest. Hatchling emergence was observed from late August to early October for M. leprosa and between September 18th and 23rd for E. orbicularis. This study provides critical insights into the reproductive strategies of these species, which may inform conservation efforts in Doñana National Park.

Díaz-Paniagua, C., Andreu, A. C., Marco, A., Nuez, M., Hidalgo-Vila, J., & Pérez-Santigosa, N. (2014). Data on nesting, incubation, and hatchling emergence in the two native aquatic turtle species (Emys orbicularis and Mauremys leprosa) from Doñana National Park. Basic and Applied Herpetology. https://doi.org/10.11160/bah.13010