Thermal Acclimation Ability Varies in Temperate and Tropical Aquatic Insects from Different Elevations

Integrative and Comparative Biology
Alisha A ShahC K Ghalambor

Abstract

It has long been recognized that populations and species occupying different environments vary in their thermal tolerance traits. However, far less attention has been given to the impact of different environments on the capacity for plastic adjustments in thermal sensitivity, i.e., acclimation ability. One hypothesis is that environments characterized by greater thermal variability and seasonality should favor the evolution of increased acclimation ability compared with environments that are aseasonal or thermally stable. Additionally, organisms under selection for high heat tolerance may experience a trade-off and lose acclimation ability. Few studies have tested these non-mutually exclusive hypotheses at both broad latitudinal and local elevation scales in phylogenetically paired taxa. Here, we measure short-term acclimation ability of the critical thermal maximum (CTMAX) in closely related temperate and tropical mayflies (Ephemeroptera) and stoneflies (Plecoptera) from mountain streams at different elevations. We found that stream temperature was a good predictor of acclimation ability in mayflies, but not in stoneflies. Specifically, tropical mayflies showed reduced acclimation ability compared with their temperate counterp...Continue Reading

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Citations

Oct 19, 2017·Integrative and Comparative Biology·Caroline M WilliamsMarcel E Visser
Dec 4, 2019·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Justin C HavirdAdam J Chicco
Jan 16, 2020·Ecology and Evolution·Susana PallarésDavid Sánchez-Fernández
May 29, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Geoffrey M WhileLisa E Schwanz
Sep 16, 2020·Global Change Biology·Jackson H BirrellH Arthur Woods
Dec 12, 2020·Scientific Reports·Peter KlepsatelMartina Gáliková
Dec 10, 2020·Current Zoology·Alisha A ShahCameron K Ghalambor
Apr 12, 2021·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Amparo Hidalgo-GalianaJohn S Terblanche
Jan 25, 2022·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Natasja K NoerTorsten N Kristensen

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