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3 results for “wood frog tadpole”
Growth, development, activity, and survival of wood frog tadpoles from different populations in eastern NY in 2022.
These data were collected as two lab experiments that examined larval (i.e., tadpole) wood frog populations. The first was a time-to-death experiment in which we exposed individuals tadpoles to either a control or lethal concentrations of NaCl. The second was a growth and development experiment in which we raised tadpoles from the same populations in a sublethal concentration of NaCl for several weeks to examine their growth and development (i.e. Gosner developmental stage).
Relyea, R. A. 2002. Local population differences in phenotypic plasticity: Predator-induced changes in wood frog tadpoles. Ecological Monographs 72:77-93
Taxa that are divided into separate populations with low levels of interpopulation dispersal have the potential to evolve genetically based differences in their phenotypes and the plasticity of those phenotypes. These differences can be due to random processes, including genetic drift and founder effects, or they can be the result of different selection pressures among populations. I investigated population-level differences in predator- induced phenotypic plasticity in eight populations of larval wood frogs (Rana sylvatica) over a small geographic scale (interpopulation distances of 0.3–8 km). Using a common-garden experiment containing predator and no-predator environments, I found population differences in behavior, morphology, and life history. These responses exhibited a habitat-related pattern: the four populations from closed-canopy ponds did not differ from each other in any of their phenotypes whereas the four populations from opencanopy ponds did differ from each other in these traits. This phenotypic pattern matches the pattern of competitors and predators found in these two types of ponds. Based on two years of pond surveys, the four closed-canopy ponds contained very similar competitor and predator assemblages while the assemblages of the four open-canopy ponds were more diverse and highly variable among open-canopy ponds. When combined with past studies, which demonstrate that predators and competitors select for alternative behavioral and morphological traits, these patterns suggest that the population differences may have arisen via natural selection and not via random mutation or drift. In a second experiment, I cross-transplanted two of the populations into each other’s ponds to determine if the populations were locally adapted to the conditions of their native pond (using low and high competition crossed with the presence or absence of a lethal predator). The populations continued to exhibit phenotypic differences, and one of the two populations t
Hepatic fat accumulation regulates somatic growth through lipid-based energy metabolism in tadpoles of wood frog (Rana omeimontis)
GEO Series GSE147675. Rana omeimontis. 6 samples. Type: Expression profiling by high throughput sequencing.
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