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Factors affecting the overwintering of tadpoles in a temperate amphibian [Journal of Zoology]

Keywords : development, environmental temperature, food availability, metamorphosis, phenology, phenotypic plasticity, overwintering, Rana temporaria

par Frédéric Magné - publié le

Temperate anuran amphibians generally complete metamorphosis by the autumn of their natal year, but there are an increasing number of reports of overwintering of the larval tadpole phase. We currently know little about the environmental cues that trigger this change in the temporal pattern of development, or if it has any fitness consequences. In an experimental study in the laboratory, we examined the effects of environmental temperature and food availability on the temporal pattern of larval development and the proportion of individuals that overwintered as larvae, in Rana temporaria from the UK.(...)

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