Incubation period (days from egg-laying to eclosion), hatchling weight, body length (caparace length, CL), hatching success and proportion of symmetric individuals of experimental clutches, in function of year, population and treatment (humid/dry).

Means are presented with standard error (SE) and sample size (number of hatchlings, except for proportions where N indicates the number of clutches). Results for Porriño and Arnoia populations should be taken with caution due to the low number of clutches studied.