Reliability of the post-hoc measurement on Salamandra salamandra.

The reliability of the post hoc measurement, a non-invasive method for measuring wild animals, was tested on Salamandra salamandra. Our results show that SVL measured in the field was
lower than SVL estimated from images by three operators and that the estimates were highly consistent. In addition to the potential greater accuracy of this method in estimating SVL compared to
the measurements obtained in the field, it allows to significantly reduce the handling times of the
animals, thus reducing the stress caused to the salamanders.