The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

 ISSN 0268-0130

2021 Impact Factor from Clarivate for the Herpetological Journal is 1.194, an increase of 0.332 from 2020.

pdf 05. A new method for quantitative pattern analysis applied to two European Bombina species


Open Access

pp. 97-103
Authors: Vörös, Judit; Szalay, Ferenc & Barabás, Lilla

Abstract: This paper describes a new computer-aided digital image analysing method with self-developed modifications of public domain software (Scione Image 4.02b) for quantification of geometric and colour-defined characters of patches. We demonstrate the method on Bombina bombina and B. variegata and their natural hybrids, separating the two species and defining intermediate specimens according to their belly colour pattern. Belly images of 20 B. bombina, 20 B. variegata and five of their hybrids were processed and analysed, using four patch size- and shape-related characters (patch density, area ratio, ratio of mean patch area and mean patch perimeter, circularity) and three colour-related characters (red, green and blue components). Descriptive statistics (Student's t-test) and canonical variate analysis were used to discriminate among the three groups of specimens, and the results were compared with results based on independent genetic data. The two species significantly differed in all the geometric and two of the colour characters, and were clearly separated by the multivariate analysis, while the hybrid specimens had intermediate features.


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Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

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