The numerical encoding of scale morphology highly improves photographic identification in lizards

Photographic identification is a promising marking technique alternative to the toe-clipping, but is time consuming, particularly when a large number of individuals is involved. For this reason several authors had frequently preferred the toe-clipping. In this study we analysed the black spot patter...

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Main Authors: Roberto Sacchi, Stefano Scali, Mauro Fasola, Paolo Galeotti
Format: Article
Language:English
Published: Firenze University Press 2006-06-01
Series:Acta Herpetologica
Online Access:https://oaj.fupress.net/index.php/ah/article/view/1515
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author Roberto Sacchi
Stefano Scali
Mauro Fasola
Paolo Galeotti
author_facet Roberto Sacchi
Stefano Scali
Mauro Fasola
Paolo Galeotti
author_sort Roberto Sacchi
collection DOAJ
description Photographic identification is a promising marking technique alternative to the toe-clipping, but is time consuming, particularly when a large number of individuals is involved. For this reason several authors had frequently preferred the toe-clipping. In this study we analysed the black spot pattern of ventral scales of wall lizards (Podarcis muralis) and we showed that photographic identification is an effective method for recognizing individuals, and the error of this technique is much less than that of the toe-clipping arising from natural toe loss. Moreover, the numerically encoding of the black spot pattern may radically reduce the time needed to compare the pictures of large samples of individuals, solving one of the more important obstacle against the use of photographic identification.
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spelling doaj.art-937939cd480a4ec49050b3a78c393a2f2022-12-21T18:39:51ZengFirenze University PressActa Herpetologica1827-96351827-96432006-06-012110.13128/Acta_Herpetol-18871883The numerical encoding of scale morphology highly improves photographic identification in lizardsRoberto SacchiStefano ScaliMauro FasolaPaolo GaleottiPhotographic identification is a promising marking technique alternative to the toe-clipping, but is time consuming, particularly when a large number of individuals is involved. For this reason several authors had frequently preferred the toe-clipping. In this study we analysed the black spot pattern of ventral scales of wall lizards (Podarcis muralis) and we showed that photographic identification is an effective method for recognizing individuals, and the error of this technique is much less than that of the toe-clipping arising from natural toe loss. Moreover, the numerically encoding of the black spot pattern may radically reduce the time needed to compare the pictures of large samples of individuals, solving one of the more important obstacle against the use of photographic identification.https://oaj.fupress.net/index.php/ah/article/view/1515
spellingShingle Roberto Sacchi
Stefano Scali
Mauro Fasola
Paolo Galeotti
The numerical encoding of scale morphology highly improves photographic identification in lizards
Acta Herpetologica
title The numerical encoding of scale morphology highly improves photographic identification in lizards
title_full The numerical encoding of scale morphology highly improves photographic identification in lizards
title_fullStr The numerical encoding of scale morphology highly improves photographic identification in lizards
title_full_unstemmed The numerical encoding of scale morphology highly improves photographic identification in lizards
title_short The numerical encoding of scale morphology highly improves photographic identification in lizards
title_sort numerical encoding of scale morphology highly improves photographic identification in lizards
url https://oaj.fupress.net/index.php/ah/article/view/1515
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