On the stability of the dorsal pattern of European cave salamanders (genus Hydromantes)

By

Lunghi, Enrico
Romeo, Daniele
Mulargia, Manuela
Cogoni, Roberto
Manenti, Raoul
Corti, Claudia
Ficetola, Gentile Francesco
Veith, Michael, 1957-

Type

Article

Date of Publication

2019-10-22

Original Publication

Subterranean Biology

Volume

32

Pages

249--253

Subjects

Amphibia , biospeleology , capture-mark-recapture , cave biology , colouration , individual recognition , pattern , photo , Speleomantes

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/herpetozoa.32.e39030

 

Abstract

Photographic identification is an emerging method for recognising wild animals. This harmless methodology allows researchers to identify “naturally marked” individuals and therefore study their specific ecology and behaviour. However, before incurring potential data loss, it is recommended to test the methodology on the target species and evaluate the pros and cons. We assessed the reliability of photographic identification in adult Hydromantes salamanders from three species. Specifically, we assessed whether the dorsal pattern of adult salamanders changed over time, thus evaluating its potential use as a reliable marking methodology. We used capture-mark-recapture and controlled conditions (i.e. individuals kept in fauna boxes) to evaluate potential changes in the dorsal pattern of Hydromantes through time. We did not observe any change in the dorsal pattern in the three species during the study period. Photographic identification might be a useful marking technique for these endangered species. However, these animals are usually found in environments generally lacking light and thus, researchers must be careful in setting up proper light conditions to produce suitable pictures for individual identification of Hydromantes.