Corrigendum: Countergradient Variation in Reptiles: Thermal Sensitivity of Developmental and Metabolic Rates Across Locally Adapted Populations

In the original article, there was a misinterpretation of the results of Tiatragul et al., 2017 and Hall and Warner, 2018, where population-level differences in development time for A. cristatellus and A. sagrei were incorrectly stated.

These studies did not find any significant effect of habitat of origin on development time – mean incubation times between forested and urban wild populations were similar across temperature treatments. Tiatragul et al. (2017) showed slight differences in incubation duration between forested and urban populations (Figure 2), however these were not significant (Table 1). The “Forest” and “City” headings of Table 1 in Hall and Warner (2018) refer to the incubation treatments (forest or city thermal profile), not the population – since no population x incubation treatment interactions were found, data across populations were pooled to estimate mean incubation period for each treatment.

Figure 2

A correction has been made to “Consequences of Countergradient Adaptation: When and Why Is Thermal Countergradient Adaptation Absent?”:

Despite the prevalence of CnGV in development time, there are studies that do not show this trend, for example evidence for CnGV was absent across native-non-native ranges for species adapting to hot temperatures. Differences in development time were absent when comparing forested (cool) vs. urban (hot) populations of Anolis cristatellus and Anolis sagrei under common garden conditions (Tiatragul et al., 2017; Hall and Warner, 2018). Further measures of the relative temperature dependencies of D and MR in other species are needed to elucidate the temperature-dependent costs of development as a potentially general mechanism for local thermal adaptation to extreme high temperatures.

In the original article, there was a mistake in Figure 2 as published. Due to the misinterpretation of results by Hall and Warner, 2018 (as per above), effect sizes for development time of Anolis cristatellus were incorrect. Since data across populations were pooled for this study, effect sizes were unable to be recalculated. The corrected Figure 2 appears below.

The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.

Summary

Keywords

temperature, climate, adaptation, cogradient, incubation, embryo, maternal investment

Citation

Pettersen AK (2021) Corrigendum: Countergradient Variation in Reptiles: Thermal Sensitivity of Developmental and Metabolic Rates Across Locally Adapted Populations. Front. Physiol. 12:652269. doi: 10.3389/fphys.2021.652269

Received

12 January 2021

Accepted

28 January 2021

Published

18 February 2021

Volume

12 - 2021

Edited and reviewed by

Julia Nowack, Liverpool John Moores University, United Kingdom

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Copyright

© 2021 Pettersen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Amanda K. Pettersen amanda.pettersen@biol.lu.se

This article was submitted to Environmental, Aviation and Space Physiology, a section of the journal Frontiers in Physiology

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