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P Kyriakopoulou-Sklavounou (2000)

Adaptations of some amphibian species to Mediterranean environmental conditions


Recent morphological and electrophoretic studies on the amphibian species Rana ridibunda, Bufo viridis, Hyla arborea and Triturus alpestris from northern and central Greece revealed a high degree of morphological and genetic variation. Morphological variation was assessed by colour patterns and several morphometric characters. Genetic variation was estimated from values of the parameters P (proportion of polymorphic loci) and H (mean heterozygosity), which were found to increase in the order: Triturus alpestris (H 0.122) < Hyla arborea (H = 0.136) < Bufo viridis (H = 0.139) < Rana ridibunda (H = 0.149). Furthermore, our studies on the reproductive biology of R. ridibunda, B. viridis and H. arborea revealed some differences concerning their reproductive patterns. The results of our studies provide evidence that the morphological and genetic variability as well as the differentiation of reproductive patterns are partly adaptations to the ecological factors of the area.

amphibia; reproductive period; morphometrics; genetic variation
8th International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, KAVALA, GREECE, MAY 17-21, 1999
  • ISSN: 0777-6276

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium


Annales de la Société malacologique de Belgique
​Annales de la Société royale malacologique et zoologique de Belgique
Annales de la Société Royale Zoologique de Belgique
Belgian Journal of Zoology