Selection for phenotypic plasticity in Rana sylvatica tadpoles
نویسندگان
چکیده
منابع مشابه
Predator-induced phenotypic plasticity in tadpoles: extension or innovation?
Phenotypic plasticity, the ability of a trait to change as a function of the environment, is central to many ideas in evolutionary biology. A special case of phenotypic plasticity observed in many organisms is mediated by their natural predators. Here, we used a predator-prey system of dragonfly larvae and tadpoles to determine if predator-mediated phenotypic plasticity provides a novel way of ...
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Amphibian tadpoles display extensive anti-predator phenotypic plasticity, reducing locomotory activity and, with chronic predator exposure, developing relatively smaller trunks and larger tails. In many vertebrates, predator exposure alters activity of the neuroendocrine stress axis. We investigated predator-induced effects on stress hormone production and the mechanistic link to anti-predator ...
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Gene flow is often considered to be one of the main factors that constrains local adaptation in a heterogeneous environment. However, gene flow may also lead to the evolution of phenotypic plasticity. We investigated the effect of gene flow on local adaptation and phenotypic plasticity in development time in island populations of the common frog Rana temporaria which breed in pools that differ ...
متن کاملExperimental and model analyses of the effects of competition on individual size variation in wood frog (Rana sylvatica) tadpoles.
1. Size variation is a ubiquitous feature of animal populations and is predicted to strongly influence species abundance and dynamics; however, the factors that determine size variation are not well understood. 2. In a mesocosm experiment, we found that the relationship between mean and variation in wood frog (Rana sylvatica) tadpole size is qualitatively different at different levels of compet...
متن کاملFeeding tadpoles cloned from Rana erythrocyte nuclei.
Diploid frog nuclei from differentiated somatic cells, transplanted into enucleated eggs to determine whether cell specialization generally involves irreversible genetic changes, have shown that nuclei from specialized somatic cells still contain the genes specifying the cell types and organ systems of swimming tadpoles. However, those tadpoles failed to feed and did not survive beyond the init...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 1998
ISSN: 0024-4066
DOI: 10.1111/j.1095-8312.1998.tb01144.x