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Linear dimensions of body and biological age of amphibians and reptiles on example of Lacerta agilis (Linnaeus, 1758) and Pelophylax ridibundus (Pallas, 1771)
A multidimensional analysis of morphological variability and diversity of characters in a population of sand lizard and marsh frog is conducted. It is shown that the age variability of the linear dimensions and proportions of the body in the post–embryonic development of amphibians and reptiles has a discrete nature. On this basis, the algorithm of determining the biological age of amphibians and reptiles on the complex of morphometric characters was developed. Probability of a correct definition of the biological age of individuals in the sand lizard and marsh frog is 96–100 %.
amphibians; reptiles; linear dimensions and body proportions; biological age.
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