Korosov A. Wintering the common viper (Vipera berus) with embryos // Principy èkologii. 2012. № 1. P. 54‒59. DOI: 10.15393/j1.art.2012.321


Issue № 1

Original research

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Wintering the common viper (Vipera berus) with embryos

Korosov
   Andrey Victorovich
Petrozavodsk state university, korosov@psu.karelia.ru
Keywords:
common viper
Vipera berus
wintering
embryos
Summary: For the Vipers from Karelia phenomenon wintering females with embryos and the annual breeding were found. They were very large and heavy females (L.t. > 62 cm, W > 160 g), for which the mass loss due to pregnancy are not significant. Analysis of the size of 1450 individuals in a Kizhi population of viper showed that the proportion of females that can hibernate from embryos amounts to less than 3%.

© Petrozavodsk State University

Reviewer: V. Shitikov
Received on: 11 December 2011
Published on: 25 November 2013

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