Phenological delay despite warming in wood frog Rana sylvatica reproductive timing: a 20‐year study
نویسندگان
چکیده
منابع مشابه
Microgeographic countergradient variation in the wood frog, Rana sylvatica.
Prior studies have shown that macrogeographic gradients in temperature associated with latitude and altitude can lead to countergradient patterns of variation in a number of taxa: individuals from colder environments are known to grow or develop faster than their conspecifics from warmer environments when placed in a common setting. In this study, I hypothesized that countergradient variation a...
متن کاملInduction of photolyase activity in wood frog (Rana sylvatica) embryos.
Rising ultraviolet-B (UVB, 280-320 nm) radiation has been proposed as a factor which may explain nonnormal amphibian population declines. Accordingly research has been directed toward estimating the photolyase activity of several amphibian species in order to predict a species' resilience to UV damage. Unfortunately, in spite of published research which demonstrated that the activity of one of ...
متن کاملSeasonality of Freeze Tolerance in a Subarctic Population of the Wood Frog, Rana sylvatica
We compared physiological characteristics and responses to experimental freezing and thawing in winter and spring samples of the wood frog, Rana sylvatica, indigenous to Interior Alaska, USA. Whereas winter frogs can survive freezing at temperatures at least as low as −16C, the lower limit of tolerance for spring frogs was between −2.5C and −5C. Spring frogs had comparatively low levels of the ...
متن کاملAnti-apoptotic response during anoxia and recovery in a freeze-tolerant wood frog (Rana sylvatica).
The common wood frog, Rana sylvatica, utilizes freeze tolerance as a means of winter survival. Concealed beneath a layer of leaf litter and blanketed by snow, these frogs withstand subzero temperatures by allowing approximately 65-70% of total body water to freeze. Freezing is generally considered to be an ischemic event in which the blood oxygen supply is impeded and may lead to low levels of ...
متن کاملIdentification and characterization of a novel freezing inducible gene, li16, in the wood frog Rana sylvatica.
The wood frog Rana sylvatica survives for weeks during winter hibernation with up to 65% body water frozen as ice. Natural freeze tolerance includes both seasonal and freeze-induced molecular adaptations that control ice formation, deal with long-term ischemia, regulate cell volume changes, and protect macromolecules. This report identifies and characterizes a novel freeze-inducible gene, li16,...
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ژورنال
عنوان ژورنال: Ecography
سال: 2020
ISSN: 0906-7590,1600-0587
DOI: 10.1111/ecog.05297