KnE Life Sciences
ISSN: 2413-0877
The latest conference proceedings on life sciences, medicine and pharmacology.
Deviations in Pholidosis of the Grass Snake Natrix natrix (L. 1758) from the Tatarstan Republic
Published date: May 03 2018
Journal Title: KnE Life Sciences
Issue title: The Second International Conference on Amphibian and Reptiles Anomalies and Pathology
Pages: 75–79
Authors:
Abstract:
This paper is devoted to the consideration of qualitative and quantitative characteristics of pholidosis deviations in grass snakes and the intraspecific variation of these features. 35 types of deviations were observed: segmentation, incomplete separation, fusion, reduction of scales and the presence of an additional small scale. The frequency and values of individual and population spectra of deviations were higher in adult snakes. Minimal values of all indices were characterized for a sample from the Laishevsky region. Deviations observed in grass snakes occur in other species of snakes, mostly deviations of the ventral and subcaudal scales.
References:
[1] Borkin LJ, Bezman-Moseyko OS, Litvinchuk SN: Evaluation of animal deformity occurrence in natural populations (an example of amphibians). Proceedings of the Zoological Institute RAS. 2012; 316 (4): 324-343.
[2] Galitsyn DI: Sand lizard (Lacerta agilis Linnaeus, 1758) pholidosis deviations in the Ural populations. In: Amphibian and reptile anomalies and pathology. Proceedings of the International School-Conference. Yekaterinburg. 2014: 52-58.
[3] Gautschi B, Widmer A, Joshi J, Koella JC: Increased frequency of scale anomalies and loss of genetic variation in serially bottlenecked populations of the dice snake, Natrix tessellate. Conservation Genetics. 2002; 3: 235-245.
[4] Löwenborg K, Shine R, Hagman M: Fitness disadvantages to disrupted embryogenesis impose selection against suboptimal nest-site choice by female grass snakes, Natrix natrix (Colubridae). Journal of Evolutionary Biology. 2011; 24: 177-183.
[5] Osgood DW: Effects of temperature on the development of meristic characters in Natrix fasciata. Copeia. 1978; 1: 33-47.
[6] Peters JA: The snakes of the subfamily Dipsadinae. Ann Arbor: Museam of Zoology, University of Michigan; 1960.
[7] Roytberg ES: Variation of head shield pattern in lizards of the genus Lacerta (Sauria, Lacertidae): trends and constraints. Russian Journal of Zoology. 1991; 70 (4): 85-96.
[8] Shine R, Langkild T, Wall M, Mason RT: The fitness correlates of scalation asymmetry in garter snakes Thamnophis sirtalis parietalis. Functional Ecology. 2005; 19: 306-314.
[9] Shine C, Shine N, Shine R, Slip D: Use of subcaudal scale anomalies as an aid in recognizing individual snakes. Herpethological Review. 1988; 19 (4): 79.
[10] Zhukov VP: Pholidosis variability of dione snake (Elaphe dione) on Samarskaya Luka. Samarskaya Luka Bulletin. 1992; 3: 191-193.