相同的物种,而不是相同的入侵者:遗传上不同的入侵种群及其种内杂交种对环境胁迫的代谢反应。

IF 3.7 1区 环境科学与生态学 Q1 ECOLOGY
Łukasz Jermacz, Krzysztof Podwysocki, Andrea Desiderato, Karolina Bącela-Spychalska, Tomasz Rewicz, Eliza Szczerkowska-Majchrzak, Mateusz Augustyniak, Vojsava Gjoni, Jarosław Kobak
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引用次数: 0

摘要

气候变化对变温动物有着深远的影响,这些变温动物在其原生地区遭受次优热条件或传播到以前无法到达的地方。然而,人们常常忽视对环境变化的反应可能是在种群水平上,而不是物种特有的现象。两组(西部和东部)入侵的滨-里海片足类Dikerogammarus villosus分别来自生活在多瑙河三角洲和第聂伯河三角洲的两个地理上隔离且遗传上不同的源种群,在欧洲独立传播。预计他们将在不久的将来在波兰内陆水域会面。这使得该物种成为研究对环境变化的反应的种内变异性以及不同遗传单位之间杂交对入侵的影响的完美模型。我们测量了不同温度(15°C和25°C)和氧气水平(15°C和25°C时分别为9.5或7.5 mg/L,两种温度下分别为5.5 mg/L)下的最大代谢率(MMR)、标准代谢率(SMR)和有氧范围(AS,生理性能的衡量指标),以测试不同入侵群体及其杂交群体对环境变化的反应差异。与低温和东部群体个体相比,西部群体个体在高温下表现出较低的AS,而小动物在不同温度和群体身份下表现出相似的AS。此外,两组中体型较大的个体在低氧条件下MMR和AS都有所降低,而体型较小的动物在缺氧条件下没有改变这些参数。虽然亲本组对氧还原反应降低了其AS,但杂种AS保持不变。总之,生物对气候变化的反应依赖于种内变异,这应该在与该主题相关的研究中得到考虑。此外,毛豆对缺氧和温度变化表现出敏感(特别是西部群体和大型个体),但种内杂交可以增强对入侵者的环境耐受性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The same species, not the same invader: Metabolic responses of genetically distinct invasive populations of Dikerogammarus villosus and their intraspecific hybrid to environmental stresses

The same species, not the same invader: Metabolic responses of genetically distinct invasive populations of Dikerogammarus villosus and their intraspecific hybrid to environmental stresses

The same species, not the same invader: Metabolic responses of genetically distinct invasive populations of Dikerogammarus villosus and their intraspecific hybrid to environmental stresses

The same species, not the same invader: Metabolic responses of genetically distinct invasive populations of Dikerogammarus villosus and their intraspecific hybrid to environmental stresses

The same species, not the same invader: Metabolic responses of genetically distinct invasive populations of Dikerogammarus villosus and their intraspecific hybrid to environmental stresses

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来源期刊
Journal of Animal Ecology
Journal of Animal Ecology 环境科学-动物学
CiteScore
9.10
自引率
4.20%
发文量
188
审稿时长
3 months
期刊介绍: Journal of Animal Ecology publishes the best original research on all aspects of animal ecology, ranging from the molecular to the ecosystem level. These may be field, laboratory and theoretical studies utilising terrestrial, freshwater or marine systems.
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