... species. To overwinter, insects have adapted a range of strategies to become truly cold hardy. However, although the mechanisms underlying the ability to avoid or tolerate freezing have been well studied, little attention has been given to the challenge of maintaining ion homeostasis at frigid...

... The authors declare no competing or financial interests. 27 8 2020 16 2 2022 © 2022. Published by The Company of Biologists Ltd 2022 Summary: Transcriptional and metabolomic data reveal mechanisms associated with enhanced cold hardiness in ticks exposed to rapid-cold hardening...

... with increased cold hardiness. Diapause is often induced following maternal adult detection of an environmental cue signifying the onset of winter, whilst diapause is initiated in a subsequent life stage and/or generation. Continued global warming will expose adults to higher late-autumn temperatures, whilst...

... of A. svalbardicum have a mean SCP of −36.2±0.5°C, which was lowered to −38.0±0.6°C after a month of acclimation at −10°C, with some eggs freezing as low as −44°C. These low SCP values were linked to long-term cold hardiness in which 80% of eggs survived for a month at −30°C ( Strathdee et al., 1995 ). The life...

...Keiichiro Matsukura; Hisaaki Tsumuki; Yohei Izumi; Takashi Wada SUMMARY Cold hardiness of the freshwater apple snail, Pomacea canaliculata , varies seasonally. We investigated lethal factors and physiological changes arising from exposure of P. canaliculata to low temperatures. Snails did...

... to an environmental stress are proportional to the amplitude of the stress they endure in their habitats. Surprisingly, previous studies have shown that a population of an aquatic hypogean crustacean, Niphargus rhenorhodanensis , exhibited a high level of cold hardiness. Subterranean environments thus appeared...

..., France (e-mail: [email protected] ) 3 3 2008 © The Company of Biologists Limited 2008 2008 Lacerta cold hardiness mitochondria superoxide supercooling freezing Although the phenomenon of proton leakage has been considered for a long time to be an artefact...

.... This species also gradually increased its trehalose body content with decreasing temperature. Several cold-hardy ectotherms show metabolic responses to cold that are identical to those observed in N. rhenorhodanensis . A previous comparative study showed that the hypogean N. rhenorhodanensis exhibited...

... © The Company of Biologists Limited 2003 2003 painted turtle Chrysemys picta cold hardiness hibernation acclimation supercooling ice nucleation gut yolk The hatchling painted turtle ( Chrysemys picta ) is a favorite study organism among investigators interested in the cold...

.... For comparison, we also studied hatchling snapping turtles ( Chelydra serpentina ), a less cold-hardy species that usually overwinters under water. Although Chrysemys picta and Chelydra serpentina differed in some physiological responses, both species lost dry mass, catabolized lipid and tended to gain body...

...-mail: [email protected] 19 9 1998 26 10 1998 © The Company of Biologists Limited 1998 painted turtle Chrysemys picta supercooling ice nucleus soil freeze tolerance survival cold hardiness Painted turtles ( Chrysemys picta ) hatch in late summer but usually remain...