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两动物和淡水鱼类适应全球变暖的能力:驱动因素,模式和数据限制
Katharina Ruthsatz1,2, Flemming Dahlke3, Katharina Alter4
1Zoological Institute, Technische Universität Braunschweig, Braunschweig, Germany.
Global change biology
|May 21, 2024
概括
两动物和鱼类具有可预测的耐热模式,受物种,生命阶段和实验条件的影响. 了解这些特征对于在气候变化中保护淡水生物多样性至关重要.
科学领域:
- 生态学和进化生物学.
- 生理生态生态学生理生态学
- 气候变化生物学
背景情况:
- 两动物和鱼类对淡水生态系统至关重要,但由于分布有限和热缓冲区较小,它们很容易受到气候变化的影响.
- 了解它们在不同生命阶段的生理热极限和适应能力,对于预测气候变化影响至关重要.
研究的目的:
- 对两动物和淡水鱼类的上热耐受性 (CTmax) 和热适应能力 (ARR) 的数据进行定量合成.
- 探索影响这些热特征的遗传学,遗传学和生物地理模式.
- 评估实验方法对热性质评估的影响.
主要方法:
- 对345项实验的系统文献综述,为96种两动物和93种鱼类提供了998个估计结果.
- 量化合成和条件推论树分析以确定CTmax和ARR的决定因素.
- 分析包括植物遗传,生命阶段,气候起源和实验条件在内的因素.
主要成果:
- CTmax主要取决于适应温度,持续时间和生命阶段,而不是气候起源.
- 的幼虫表现出比较老的生命阶段更高的CTmax.
- 淡水鱼类的ARR是两动物的两倍多,受适应时间,升级速度和局部温度适应的影响.
- 种系,实验方法和生命阶段显著影响CTmax和ARR.
结论:
- 对CTmax和ARR存在全球一致的模式,但对生命早期阶段的数据是不够的和不一致的.
- 标准化方法对于在气候变化下对淡水生物多样性的强有力的数据收集和保护计划至关重要.
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