Variability of thermoregulation parameters of the common viper

N.D. Ganyushina and A.V. Korosov

Proceedings of the Zoological Institute RAS, 2021, 325(1): 99–112 · https://doi.org/10.31610/trudyzin/2021.325.1.99

Full text

Abstract

The results of processing the data of continuous recording of body temperature using loggers obtained with the enclosure keeping 23 individuals of the common viper Vipera berus L. in Karelia (62.068310°N, 33.958824°E) are presented. Nine temperature characteristics, subdivided into 2 groups, were quantitatively evaluated – thermoecological, describing the dependence of the course of the viper’s body temperatures on the heat flux of the medium, and thermophysiological, stable parameters of thermoregulation. The factors that determine the variability of temperature characteristics are considered: time of day, weather conditions, morphometric indicators of an individual. A wide individual variability of thermoecological indicators and low variability of thermophysiological indicators were revealed, which was not associated with significant differences in different individuals. The parameter “maximum voluntary temperature”, which characterizes body temperature while avoiding overheating, is the closest to the physiological parameter of thermoregulation; obtaining such data is a very laborious process associated with deciphering the snake’s behavior from video recordings. An indicator that gives close values to the maximum voluntary temperature, which has a very simple calculation algorithm – “median active temperature (for a sample of temperatures above 30°C)”; however, it requires a volumetric series of continuously recorded temperature records for analysis. An accurate, statistically robust “maximum typical temperature” parameter gives an idea of the true maximum temperature characteristic of a species, but has a complex calculation method. These thermophysiological parameters are recommended to be used for intrapopulation and interspecies comparisons.

Key words

variability of thermoregulation parameters, body temperature, thermoregulation, reptiles

Submitted February 7, 2021 · Accepted March 16, 2021 · Published March 25, 2021

References

Bakiev A.G., Garanin V.I., Litvinov N.A., Pavlov A.V. and Ratnikov V.Y. 2004. Thermobiological studies of the Snake of the Volga-Kama Region. In: A.L. Malenov (Ed.). Snakes of the Volga-Kama Region. Publishing house of Samara Scientific Center of the Russian Academy of Sciences, Samara: 109–146. [In Russian].

Chan Kien. 1967. Taxonomy and ecology of the common viper Vipera berus (Linné, 1758) Abstract of the Doctor of Biological Sciences thesis. Leningrad State University, Leningrad, 14 p. [In Russian].

Cherlin V.A. 2010. Thermobiology of reptiles. General information and research methods (manual). Publishing house “Russian-Baltic information center” BLITZ”, St. Petersburg, 124 p. [In Russian].

Cherlin V.A. 2012. Thermobiology of reptiles. General concept. Publishing house “Russian-Baltic information center” BLITZ “, St. Petersburg, 362 p. [In Russian].

Ganyushina N.D., Korosov A.V., Litvinov N.A. and Chetanov N.A. 2019. External and internal body temperature of the common adder. Journals of higher educational institutions. Povolzhskiy region. Natural sciences, 2: 17–27. [In Russian]. https://doi.org/10.21685/2307-9150-2019-2-2

Korosov A.V. 2008 A simple basking model of the common viper (Vipera berus L.). Modern herpetology, 8(2): 118–136. [In Russian].

Korosov A.V. 2010. Ecology of the common viper (Vipera berus L.) in the North (facts and models). PetrSU, Petrozavodsk, 264 p. [In Russian].

Korosov A.V. 2015. A new word in the thermobiology of reptiles? Principles of ecology, 1: 77–85. [In Russian]. https://doi.org/10.15393/j1.art.2015.4162

Korosov A.V. and Ganyushina N.D. 2019. To the assessment of the maximum voluntary temperature of the common viper. Proceedings of higher educational institutions. Volga region. Natural Sciences, 2: 96–104. [In Russian]. https://doi.org/10.21685/2307-9150-2019-2-10

Korosov A.V. and Ganyushina N.D. 2020. Methods for assessing the parameters of thermoregulation in reptiles (on the example of the common viper, Vipera berus L.). Principles of ecology, 4: 88–103. [In Russian]. https://doi.org/10.15393/j1.art.2020.11322

Korosov A.V. and Hilkov T.N. 2008. Quantitative characteristics of the daily activity of the common viper. Scientific notes of the Petrozavodsk State University. Ser. Natural and technical sciences, 4: 52–55. [In Russian].

Litvinov N.A., Panova M.K. and Okulov G.A. 2016. Study of thermoregulatory behavior of reptiles by implantation of temperature recorders. Bulletin of St. Petersburg University. Series 3. Biology, 3: 69–76. [In Russian]. https://doi.org/10.21638/11701/spbu03.2016.313

Lourdais O., Guillon M., DeNardo D. and Blouin-Demers G. 2013. Cold climate specialization: Adaptive covariation between metabolic rate and thermoregulation in pregnant vipers. Physiology & Behavior, 119: 149–155. https://doi.org/10.1016/j.physbeh.2013.05.041

Naumov N.P. and Kartashev N.N. 1979. Vertebrate Zoology. Part 2. Reptiles, birds, mammals. Higher School, Moscow, 272 p. [In Russian].

Ortega Z., Mencía A. and Pérez-Mellado V. 2016. Behavioral buffering of global warming in a cold adapted lizard. Ecology and Evolution, 6(13): 4582–4590. https://doi.org/10.1002/ece3.2216

Peskov A.N. 2003. Vipers (Serpentes, Viperidae, Vipera) of the Volga basin: fauna, ecology, protection and applied significance. The Candidate of Biological Sciences thesis. Institute of Ecology of the Volga Basin of the Russian Academy of Sciences, Tolyatti, 169 p. [In Russian].

R Core Team. 2012. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna ISBN 3-900051-07-0. http://www.R-project.org

Rutskina I.M., Litvinov N.A., Roshchevskaya I.M. and Roshchevskii M.P. 2009. Temperature adaptation of the heart in the grass snake (Natrix natrix L.), common European viper (Vipera berus L.), and steppe viper (Vipera renardi Christoph) (Reptilia: Squamata: Serpentes). Russian Journal of Ecology, 5(40): 314–319. [In Russian]. https://doi.org/10.1134/S1067413609050026

Saint-Girons H. 1975. Observations préliminaires sur la thermorégulation des Vipères d’Europe. Vie et Milieu. Ser. C, 25: 137–168. https://hal.archives-ouvertes.fr/hal-02988147

Schwartz S.S., Smirnov V.S. and Dobrinsky L.N. 1968. Method of morphophysiological indicators in vertebrate zoology. Trudy Instituta ekologii rasteniy i zhivotnykh AN SSSR. Ural’skiy filial, Sverdlovsk, 387 p. [In Russian].

Slonim A.D. 1971. Ecological physiology of animals. Vysshaya shkola, Moscow, 448 p. [In Russian].

Yumashev I. Y., 1995. Thermobiological parameters of the Common viper in the Upper Volga Basin. Materials of the First Conference of Herpetologists of the Volga region. Institute of Ecology of the Volga Basin of the Russian Academy of Sciences, Tolyatti: 63–65. [In Russian].