Klenina A., Bakiev A. On the correlation between the shape of eggs and their quantity in the clutches of Grass snake Natrix natrix (Linnaeus, 1758) // Principy èkologii. 2014. № 4. P. 68‒77. DOI: 10.15393/j1.art.2014.3841


Issue № 4

Original research

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On the correlation between the shape of eggs and their quantity in the clutches of Grass snake Natrix natrix (Linnaeus, 1758)

Klenina
   Anastasia Alexandrovna
Institute of Ecology of Volga river Basin of Russian Academy of Science, colubrida@yandex.ru
Bakiev
   Andrey Gennadyevich
PhD, Institute of Ecology of Volga river Basin of Russian Academy of Science, herpetology@list.ru
Keywords:
Natrix natrix
reproductive biology
size of clutch
shape of eggs
Summary: Positive correlation between the quantity of eggs in clutch of the grass snake and their diameter as well as negative correlation between quantity of eggs and their length and between the diameter of eggs and their length was revealed. It was determined that the more the quantity of eggs in the clutch, the more they are rounded, that was explained by their deformation in accumulating in the oviduct.

© Petrozavodsk State University

Received on: 22 December 2014
Published on: 26 February 2015

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