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

in Amphibia-Reptilia
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Abstract

We estimated differences in body size and age structure of two populations of Pelophylax ridibundus living at different altitudes in Turkey, one from Dörtyol (6 m a.s.l.) and the other from Karagöl (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 Karagöl, in Dörtyol 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 Dörtyol population. Larger females tend to be found in hotter climates (Dörtyol) 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 Dörtyol.

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

in Amphibia-Reptilia

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