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Geographical and within-population variation of larval life-history traits in Rana temporariaстатья
- Автор: Lyapkov S.M.
- Сборник: Herpetologia Bonnensis II
- Год издания: 2006
- Место издания: Bonn
- Первая страница: 83
- Последняя страница: 87
- Аннотация: The variance components of larval traits of two brown frog species in two widely separated populations were estimated using full-sib/half-sib breeding design and raising the tadpoles under laboratory conditions. The means of length of larval period (LP) in two species were nearly identical in each of two localities. The counter-gradient variation was revealed in size at metamorphosis (SM), LP and growth rate (GR) in R. temporaria and in LP and GR in R. arvalis. In R. temporaria from both localities, the heritability in SM was lower than in LP. In R. arvalis, the heritability in SM was higher than in LP. In both species, the heritability in GR in northern and southern populations was similar or some higher in northern population. In R. temporaria, the stronger (than in R. arvalis) influence of parental body length (including maternal effects) on SM, LP and GR reflects the importance of these traits for fitness at postmetamorphic stages of life cycle.
- Добавил в систему: Ляпков Сергей Марленович