title: Extreme negative temperatures and body mass loss in the Siberian salamander (Salamandrella keyserlingii, amphibia, hynobiidae).
abstract: Frozen Siberian salamander safely tolerates long (45 days) stay at-35°C. Short-term (3 days) cooling down to-50°C was tolerable for 40% of adult individuals; down to-55°C, for 80% of the underyearlings. Generally, the salamanders lose about 28% of the body mass during the pre-hibernating period (before winter, at temperatures as low as 0°C) and during the process of freezing (as low as-5°C). The body weight remained constant upon further cooling (to-35°C). The frozen salamanders have no physiological mechanisms protecting from sublimation.
authors.affiliation: Institute of Biological Problems of the North, Far Eastern Branch, Russian Academy of Sciences, Magadan, Russia. aborigen@ibpn.ru.
authors.forename: D I
authors.initials: DI
authors.lastname: Berman
authors.affiliation: Institute of Biological Problems of the North, Far Eastern Branch, Russian Academy of Sciences, Magadan, Russia.
authors.forename: E N
authors.initials: EN
authors.lastname: Meshcheryakova
authors.affiliation: Institute of Biological Problems of the North, Far Eastern Branch, Russian Academy of Sciences, Magadan, Russia.|Research Institute of Biology and Biophysics, Tomsk State University, Tomsk, Russia.
authors.forename: N A
authors.initials: NA
authors.lastname: Bulakhova
mesh_terms: D000064:Acclimatization / Q000502:physiology*; D000818:Animals; D001835:Body Weight / Q000502:physiology*; D005615:Freezing; D006605:Hibernation / Q000502:physiology*; D012800:Siberia; D014562:Caudata / Q000502:physiology*