Body size and age structure of Pelophylax ridibundus populations from two different altitudes in Turkey

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GÜL S. , ÖZDEMİR N. , Uzum N., Olgun K., KUTRUP B.

AMPHIBIA-REPTILIA, cilt.32, sa.2, ss.287-292, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Konu: 2
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1163/017353711x559094
  • Sayfa Sayıları: ss.287-292


We estimated differences in body size and age structure of two populations of Pelophylax ridibundus living at different altitudes in Turkey, one from Dortyol (6 m a.s.l.) and the other from Karagol (1480 m a.s.l.). Their age structure was determined by skeletochronology performed on the LAGs (lines of arrested growth) of the phalanges. While ages ranged from 2 to 8 years for males and from 2 to 7 years for females in Karagol, in Dortyol the ages ranged from 4 to 11 years for males, and 3 to 7 years for females. Sexual size dimorphism was only found in the Dortyol population. Larger females tend to be found in hotter climates (Dortyol) but reach maturity later (3-4 years) than the highland population (2 years). A significant relationship between age and snout-vent length (SVL) was found for both sexes and populations with the exception of females in Dortyol.