热耐受性的季节性可塑性表明澳大利亚豆娘对未来气候的适应能力。

IF 2.3 2区 环境科学与生态学 Q2 ECOLOGY
Md Tangigul Haque, Shatabdi Paul, Marie E Herberstein, Md Kawsar Khan
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引用次数: 0

摘要

动物对气候变暖的反应主要取决于其热耐受性。季节温度变化可能指示昆虫热耐受性可塑性的边界,从而预测昆虫对未来气候的适应能力。本文通过热宽度(临界热最大值(CTmax)和临界热最小值(CTmin)之差)的变化来估算不同季节Ischnura heterosticta和Xanthagrion erythroneurum豆娘的热安全边际。两种植物的CTmax和CTmin均随月温度的升高而升高,其中夏季CTmin的升高更为强烈。总体而言,春季和秋季热宽度较宽(约41度),但在夏季,我们观察到大量个体的热宽度明显较窄(降至26-35度)。我们的研究结果表明豆娘具有相当大的季节性热可塑性,这可能在未来的气候中提供一定程度的恢复力,但在最关键的季节(夏季),高温峰值可能会使相当大比例的种群超出其极限。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Seasonal plasticity of thermal tolerance indicates resilience to future climate in Australian damselflies.

An animal's response to climate warming is predominantly governed by its thermal tolerance. Seasonal temperature variation may indicate the boundaries of plasticity in insect thermal tolerance, which could predict the capacity to adapt to future climates. Here, we assess the changes in thermal breadth (the difference between the critical thermal maximum (CTmax) and critical thermal minimum (CTmin)) to estimate the thermal safety margin in Ischnura heterosticta and Xanthagrion erythroneurum damselflies across different seasons. For both species, CTmax and CTmin increased with monthly temperature, with a stronger increase of CTmin in summer. Overall, thermal breadth was broad in spring and autumn (around 41 degrees) but in summer we observed a large number of individuals with substantially narrower thermal breadth (down to 26-35 degrees). Our results establish considerable seasonal thermal plasticity in damselflies, which might provide a degree of resilience in future climates, yet during the most critical season (summer), heat spikes might push a substantial proportion of the population beyond their limits.

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来源期刊
Oecologia
Oecologia 环境科学-生态学
CiteScore
5.10
自引率
0.00%
发文量
192
审稿时长
5.3 months
期刊介绍: Oecologia publishes innovative ecological research of international interest. We seek reviews, advances in methodology, and original contributions, emphasizing the following areas: Population ecology, Plant-microbe-animal interactions, Ecosystem ecology, Community ecology, Global change ecology, Conservation ecology, Behavioral ecology and Physiological Ecology. In general, studies that are purely descriptive, mathematical, documentary, and/or natural history will not be considered.
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