Ontogenetic thermal tolerance and performance of ectotherms at variable temperatures
| Autor: | Francisco Bozinovic, José M. Bogdanovich, Grisel Cavieres |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
0301 basic medicine Hot Temperature biology Ecology Ontogeny Acclimatization Temperature Zoology biology.organism_classification 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology Ectotherm Developmental plasticity Animals Drosophila Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of evolutionary biology. 29(7) |
| ISSN: | 1420-9101 |
| Popis: | Early experience and environmental conditions during ontogeny may affect organismal structure, physiology and fitness. Here, we assessed the effect of developmental acclimation to environmental thermal variability on walking speed in Drosophila melanogaster adults. Our results showed a shift in the performance curve to the right. Thus, upper and lower thermal limits exhibited developmental plasticity. Additionally, in constant and variable climatic scenarios, flies shifted to the right the optimum temperature but the maximum performance decreased only in flies reared on high temperatures and high thermal variability. Overall, we showed that environmental cues during ontogeny might help to construct phenotypic variation, which supports the hypothesis of ontogenetic dependence of thermal tolerances. |
| Databáze: | OpenAIRE |
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