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Volume 61, Issue 5


The morphometrics and colouration of the European pond turtle Emys orbicularis in Lubuskie province (West Poland)

Bartłomiej Najbar
  • Institute of Civil and Environmental Engineering, University of Zielona Góra, prof. Z. Szafrana 15, PL-65516, Zielona Góra, Poland
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/ Ewa Szuszkiewicz
Published Online: 2006-10-01 | DOI: https://doi.org/10.2478/s11756-006-0094-9


The European pond turtle Emys orbicularis, is an endangered species in Poland. The region of the Ilanka River, in the western part of the country (Lubuskie province), is the most densely inhabited area by the species. Several populous sites are dispersed over the whole area of the province. Over the past 10 years, 279 turtles were captured at 11 sites. In 218 individuals, those with a straight carapace length (SCL) between 2.10–12.10 cm, sex was not determined; the remaining 61 with SCL 13.33–19.85 cm were sexed. Females had bigger bodies and were heavier than males. The SCL of females was 17.10 ± 1.7 cm (average ± SD, n = 33), their body mass (BM) was 790.6 ± 228.7 g (n = 27), and in the case of males SCL was 15.44 ± 1.5 cm and BM was 554.2 ± 138.8 g (n = 28). SCL of the smallest egg laying female was 15.30 cm, and SCL of the smallest mating male was 13.33 cm. The colouration of the turtles which undergoes change with age can be varied.

Keywords: Emys orbicularis; population; morphology; colouration; Poland

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About the article

Published Online: 2006-10-01

Published in Print: 2006-10-01

Citation Information: Biologia, Volume 61, Issue 5, Pages 585–592, ISSN (Online) 1336-9563, ISSN (Print) 0006-3088, DOI: https://doi.org/10.2478/s11756-006-0094-9.

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© 2006 Institute of Zoology, Slovak Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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