The Great Crested Newt, Triturus cristatus (Laurenti 1768) (Caudata, Salamandridae), near the Eastern Limit of Its Distribution Area in the Middle Urals

Updated information on the distribution and studied populations of T. cristatus on the eastern macro-slope of the Urals (Middle and Southern Urals) is provided. Based on tagging with recapture, the number of reproductive individuals of the populations, the sex ratio, and the morphological specificity are estimated for the first time. From the standpoint of assessing the physicochemical features of the habitat environment, possible limiting factors (thermal and moisture availability, geochemical characteristics, climate continentality, and the presence of natural enemies and invasive species) that affect the distribution and abundance of the great crested newt near the northeastern limit of the range are discussed.