title: The Japanese tree frog (Hyla japonica), one of the most cold-resistant species of amphibians.
abstract: The Japanese tree frog, a representative of the Manchurian fauna, is characterized by an outstanding cold resistance among the anuran amphibian species studied so far. Almost 70% of the specimens from the population inhabiting the middle Amur River withstand the cooling down to-30°C; some animals, down to-35°C. This exceeds more than twofold the cold hardiness of the wood frog (Lithobates sylvaticus LeConte, 1825), which has been considered earlier to be the most cold-resistant species. The ability of H. japonica to survive for four months in the frozen state at low temperatures makes this species independent of the temperature overwintering conditions.
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.|Tomsk State University, Tomsk, Russia.
authors.forename: N A
authors.initials: NA
authors.lastname: Bulakhova
mesh_terms: D000064:Acclimatization / Q000502:physiology*; D000818:Animals; D001001:Anura / Q000145:classification / Q000502:physiology*; D001833:Body Temperature Regulation / Q000502:physiology*; D002681:China; D058639:Cold-Shock Response / Q000502:physiology*; D005615:Freezing; D013045:Species Specificity; D015996:Survival Rate