Some aspects of thermoregulation and activity in free-ranging grass snakes (Natrix natrix L.)

Some aspects of thermoregulation and activity in free-ranging grass snakes (Natrix natrix L.) 322 Some aspects of thermoregulation and activity in free-ranging grass snakes (Natrix natrix L.) Dietmar Mertens Philipps-Universität Marburg, Fachbereich Biologie/Zoologie, Postfach 1929 (Hausadresse: 35043 Karl- von-Frisch-Straße), D-35032 Marburg/Lahn, Germany In contrast to many other Central European snake species, no data concerning outdoor thermoregulation are available for grass snakes. One purpose of the present study was to fill up this gap in knowledge. Additionally, grass snake activity in relation to air temperature is described and some information concerning migration as well as noctur- nal and winter activity of the species is given. The study was carried out a few km cast of Marburg/Lahn, in central Germany (50-48'N, 8°48'E). The study area included the new botanical garden of the university and its surroundings. The study period covered the years 1990 and 1991. In 1990 the majority of data were obtained from July to October, in 1991 from April to September. However, a certain part of the data refers to the winter months 1990/ 1991. In the course of the study eight adult grass snakes, including five females between 99 and 121 cm in total length and three males between 79 and 93 cm in total length, were monitored with implanted, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

Some aspects of thermoregulation and activity in free-ranging grass snakes (Natrix natrix L.)

Amphibia-Reptilia, Volume 15 (3): 322 – Jan 1, 1994

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Publisher
Brill
Copyright
© 1994 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
D.O.I.
10.1163/156853894X00100
Publisher site
See Article on Publisher Site

Abstract

322 Some aspects of thermoregulation and activity in free-ranging grass snakes (Natrix natrix L.) Dietmar Mertens Philipps-Universität Marburg, Fachbereich Biologie/Zoologie, Postfach 1929 (Hausadresse: 35043 Karl- von-Frisch-Straße), D-35032 Marburg/Lahn, Germany In contrast to many other Central European snake species, no data concerning outdoor thermoregulation are available for grass snakes. One purpose of the present study was to fill up this gap in knowledge. Additionally, grass snake activity in relation to air temperature is described and some information concerning migration as well as noctur- nal and winter activity of the species is given. The study was carried out a few km cast of Marburg/Lahn, in central Germany (50-48'N, 8°48'E). The study area included the new botanical garden of the university and its surroundings. The study period covered the years 1990 and 1991. In 1990 the majority of data were obtained from July to October, in 1991 from April to September. However, a certain part of the data refers to the winter months 1990/ 1991. In the course of the study eight adult grass snakes, including five females between 99 and 121 cm in total length and three males between 79 and 93 cm in total length, were monitored with implanted,

Journal

Amphibia-ReptiliaBrill

Published: Jan 1, 1994

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