Artículo
Variation in upper thermal tolerance among 19 species from temperate wetlands
Autor/es | Katzenberger, Marco
Duarte, Helder Relyea, Rick A. Beltrán Gala, Juan Francisco Tejedo, Miguel |
Departamento | Universidad de Sevilla. Departamento de Zoología |
Fecha de publicación | 2021 |
Fecha de depósito | 2023-11-20 |
Publicado en |
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Resumen | Communities usually possess a multitude of interconnected trophic interactions within food webs. Their regulation generally depends on a balance between bottom-up and top-down effects. However, if sensitivity to temperature ... Communities usually possess a multitude of interconnected trophic interactions within food webs. Their regulation generally depends on a balance between bottom-up and top-down effects. However, if sensitivity to temperature varies among species, rising temperatures may change trophic interactions via direct and indirect effects. We examined the critical thermal maximum (CTmax) of 19 species from temperate wetlands (insect predators, amphibian larvae, zooplankton and amphipods) and determined if they vary in their sensitivity to warming temperatures. CTmax differed between the groups, with predatory insects having higher CTmax than amphibians (both herbivorous larval anurans and predatory larval salamanders), amphipods and zooplankton. In a scenario of global warming, these differences in thermal tolerance may affect top-down and bottom-up processes, particularly considering that insect predators are more likely to maintain or improve their performance at higher temperatures, which could lead to increased predation rates on the herbivores in the food web. Further studies are needed to understand how the energy flows through communities, how species’ energy budgets may change and whether other physiological and behavioral responses (such as phenotypic plasticity and thermoregulation) can buffer or increase these changes in the top-down regulation of wetland food webs. |
Agencias financiadoras | National Science Foundation (NSF). United States Ministerio de Ciencia e Innovación (MICIN). España Ministerio de Economía y Competitividad (MINECO). España |
Identificador del proyecto | 0716149
CGL2009-12767-C02-02 CGL201240246C0201 CGL2017-86924-P |
Cita | Katzenberger, M., Duarte, H., Relyea, R.A., Beltrán Gala, J.F. y Tejedo, M. (2021). Variation in upper thermal tolerance among 19 species from temperate wetlands. Journal of Thermal Biology, 96, 102856. https://doi.org/10.1016/j.jtherbio.2021.102856. |
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