Strong and weak trait–environment associations in subarctic stream diatoms

IF 2.8 2区生物学 Q2 ECOLOGY

Freshwater Biology Pub Date : 2024-06-22 DOI:10.1111/fwb.14291

Laura Castañeda Gómez, Jianjun Wang, Javier Pérez-Burillo, Virpi Pajunen, Mika Sillanpää, Janne Soininen

引用次数: 0

Abstract

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亚北极溪流硅藻的强弱性状-环境关联

生态学性状是可在物种水平上测量的功能特征，为了解生物如何应对环境限制提供了宝贵的见解。在这里，我们研究了硅藻性状组和单个物种如何对环境变量做出反应，并确定了对环境变化特别敏感的指示物种。我们在挪威岛屿和大陆亚北极溪流的129个地点采集了硅藻样本，并将其分为三个性状组：直立生活的高姿态物种、沿地表低姿态生活的低姿态物种和运动硅藻。数据分析采用了最近开发的一种名为 "物种群落分层建模 "的方法，这是一种灵活的物种分布联合建模框架。我们发现，硅藻性状组对测量的环境变量反应相对较弱，但与水中主要离子水平（如电导率、钙[Ca2+]、钠[Na+]或氯[Cl-]）呈正或负的关系。变异分配显示，化学变量对所有性状组都有类似的重要贡献，而物理变量，特别是随机（空间）因素对所有性状组的贡献则明显较低。我们的研究结果还突出表明，在性状组中，物种之间与环境变量的关系存在很大差异。值得注意的是，我们在每个性状组中都发现了大量可由特定环境因素（主要是化学变量（电导率、pH 值、总氮和总磷、Ca2+、Na+、Cl-））解释的指示物种。我们的研究表明，某些硅藻物种可被视为有用的环境指标，但在某些情况下，性状组内物种偏好的差异性可能会妨碍生态性状在环境评估中的应用。因此，我们建议在使用硅藻作为指标时，将物种级生态学与性状信息相结合，以更好地跟踪环境变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Freshwater Biology 生物-海洋与淡水生物学

CiteScore

5.90

自引率

3.70%

发文量

162

审稿时长

2 months

期刊介绍： Freshwater Biology publishes papers on all aspects of the ecology of inland waters, including rivers and lakes, ground waters, flood plains and other freshwater wetlands. We include studies of micro-organisms, algae, macrophytes, invertebrates, fish and other vertebrates, as well as those concerning whole systems and related physical and chemical aspects of the environment, provided that they have clear biological relevance. Studies may focus at any level in the ecological hierarchy from physiological ecology and animal behaviour, through population dynamics and evolutionary genetics, to community interactions, biogeography and ecosystem functioning. They may also be at any scale: from microhabitat to landscape, and continental to global. Preference is given to research, whether meta-analytical, experimental, theoretical or descriptive, highlighting causal (ecological) mechanisms from which clearly stated hypotheses are derived. Manuscripts with an experimental or conceptual flavour are particularly welcome, as are those or which integrate laboratory and field work, and studies from less well researched areas of the world. Priority is given to submissions that are likely to interest a wide range of readers. We encourage submission of papers well grounded in ecological theory that deal with issues related to the conservation and management of inland waters. Papers interpreting fundamental research in a way that makes clear its applied, strategic or socio-economic relevance are also welcome. Review articles (FRESHWATER BIOLOGY REVIEWS) and discussion papers (OPINION) are also invited: these enable authors to publish high-quality material outside the constraints of standard research papers.