Abstract

The response to hiding places of metamorphosed newts (Triturus vittatus vittatus) affected by light and moisture was studied under experimental conditions. No significant differences (X2-test; P > 0.05) were found in the choice of hiding places covered with black or transparent paper as the control of the experimental methods. The selection of hiding places by the newts is significant regarding soil moisture and negative phototoxicity. Significant differences (X2-test; P < 0.05) were found in the choice of hiding places between those covered by black paper and those covered by the different colors of light paper: colorless, yellow, red, blue and green. The negative phototoxicity differs according to wavelength and differs from dark to other colors, and to transparent changes according to wavelength. The response to moisture was stronger than to light. Juvenile T. v. vittatus chose moist soil in hiding places covered by black or transparent paper in all the various combinations, and the difference was significant (X2-test; P < 0.001).

Highlights

  • The urodele species, Triturus vittatus (Gray, 1835; see Litvinchuk et al (2005) [1]), is distributed throughout western Caucasus, Turkey, Lebanon, Syria, Israel, Iraq and possibly Jordan

  • The results of the current study were in agreement with Degani (1982), who discovered that the hiding places of Triturus v. vittatus in upper Galilee were only in moist soil, under stones and in holes [11]

  • The current study showed that moisture in the hiding places was very important, wavelength was affected

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Summary

Introduction

The urodele species, Triturus vittatus (Gray, 1835; see Litvinchuk et al (2005) [1]), is distributed throughout western Caucasus, Turkey, Lebanon, Syria, Israel, Iraq and possibly Jordan. Litvinchuk et al (2005) [1] have suggested that the banded newt, T. vittatus, consists of two species, T. ophryticus and T. vittatus, based on trunk vertebrae count, genome size. How to cite this paper: Degani, G. (2015) The Effect of Light and Soil Moisture on the Environmental Behavior of Newts (Triturus vittatus vittatus, Urodela). The northern taxon, T. ophryticus, is subdivided into two geographic fragments: “western group” populations from western Anatolian Turkey, and “eastern group” populations distributed in the remaining area of Pontic Turkey and Western Caucasus. According to the above criteria, the T. vittatus species is found in Israel

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