Vol. 11 No. 1 (2016)

Photo-identification in amphibian studies: a test of I3S Pattern

Marco Sannolo
CIBIO, Research Centre in Biodiversity and Genetic Resources, InBIO, Universidade do Porto

Published 2016-03-09

How to Cite

Sannolo, M., Gatti, F., Mangiacotti, M., Scali, S., & Sacchi, R. (2016). Photo-identification in amphibian studies: a test of I3S Pattern. Acta Herpetologica, 11(1), 63–68. https://doi.org/10.13128/Acta_Herpetol-17198


Photo-identification is used for individual recognition of several animal species. It gives the possibility to take photos of large species from a distance or to avoid invasive marking techniques in small animals. For amphibians, the use of non-invasive marking methods is even more relevant in the light of their global decline. Here we use the photo-identification data from a population of Triturus carnifex to validate the photo-identification software I3S Pattern. This recently developed utility has never been applied to amphibians. The software proved to be efficient and accurate for individual recognition for this species. Contrarily to the previous releases of the I3S family, I3S Pattern is particularly suitable for amphibians characterized by a complex individual pattern of large blotches or irregular spots, which are not readily identified by eye.


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