Impact of fluctuating developmental temperatures on phenotypic traits in reptiles: a meta-analysis.
Impact of fluctuating developmental temperatures on phenotypic traits in reptiles: a meta-analysis.
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发育温度波动对爬行动物表型性状的影响：荟萃分析。
DOI：
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发表时间：
2022
影响因子：
2.8
通讯作者：
L. Schwanz
中科院分区：
文献类型：
--
作者：
Rebecca S Raynal;D. Noble;J. Riley;A. Senior;D. Warner;G. While;L. Schwanz
在生命早期的脆弱阶段，随着气温的变化，大多数变温动物每小时和每昼夜都会经历温度的波动。虽然我们知道很多关于不同的恒定温度如何影响外温动物发育的表型，但我们对温度波动对外温动物发育的影响知之甚少。在这项研究中，我们使用了荟萃分析方法来比较爬行动物物种之间恒定和波动的孵化温度的表型结果的均值和方差。我们发现，波动的温度提供了一个小的好处（较高的孵化成功率和较短的孵化持续时间）在凉爽的平均温度相比，恒定的温度，但在温暖的平均温度有负面影响。此外，与适度的温度波动相比，更极端的温度波动会导致胚胎存活率下降。在有限的数据与温度依赖性的性别决定的物种，胚胎有更高的机会发展为女性时，发展在波动的温度相比，那些发展在恒定的温度。通过我们的元分析方法，我们确定了所有类群的平均巢穴温度，当孵化温度波动时，爬行动物从获得利益转变为产生成本。更广泛地说，我们的研究表明，波动的发育温度对某些表型的外温类群的影响很可能是可预测的，通过整合的发育温度曲线与热性能曲线。
During the vulnerable stages of early life, most ectothermic animals experience hourly and diel fluctuations in temperature as air temperatures change. While we know a great deal about how different constant temperatures impact the phenotypes of developing ectotherms, we know remarkably little about the impacts of temperature fluctuations on the development of ectotherms. In this study, we used a meta-analytic approach to compare the mean and variance of phenotypic outcomes from constant and fluctuating incubation temperatures across reptile species. We found that fluctuating temperatures provided a small benefit (higher hatching success and shorter incubation durations) at cool mean temperatures compared with constant temperatures, but had a negative effect at warm mean temperatures. In addition, more extreme temperature fluctuations led to greater reductions in embryonic survival compared with moderate temperature fluctuations. Within the limited data available from species with temperature-dependent sex determination, embryos had a higher chance of developing as female when developing in fluctuating temperatures compared with those developing in constant temperatures. With our meta-analytic approach, we identified average mean nest temperatures across all taxa where reptiles switch from receiving benefits to incurring costs when incubation temperatures fluctuate. More broadly, our study indicates that the impact of fluctuating developmental temperature on some phenotypes in ectothermic taxa are likely to be predictable via integration of developmental temperature profiles with thermal performance curves.
DOI：
10.1002/jez.2183
发表时间：
2018-04
期刊：
Journal of experimental zoology. Part A, Ecological and integrative physiology
影响因子：
--
作者：
Bowden RM;Paitz RT
通讯作者：
Paitz RT
DOI：
10.1073/pnas.91.16.7487
发表时间：
1994-08-02
影响因子：
11.1
作者：
JANZEN, FJ
通讯作者：
JANZEN, FJ