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Environmental factors impacting the abundance and distribution of amphipods in intertidal rock pools
Journal of Sea Research ( IF 2 ) Pub Date : 2021-04-08 , DOI: 10.1016/j.seares.2021.102035
Jessica Carvalho , Catarina Vinagre , Ana Silva

Intertidal rock pools are considered critical habitats along coastal shores. Amphipods play an important role in intertidal rock pool ecosystems, as food resources for higher trophic levels and sometimes by enriching nutrients through grazing. However, the environmental factors driving their rockpool occupation remain largely unknown. We aimed to examine the importance of the large-scale wave action variation and meso-scale shore variation on the abundance and diversity of rockpool amphipods. A total of 32 intertidal rock pools on four Portuguese shores were studied during the summer spring tide of 2015. We applied multivariate analysis to evaluate the potential impact of wave action (sheltered versus wave exposed shores), physical pool structure (length, width, and depth), and relationships within the pool community on the abundance and diversity of amphipods. Wave exposure significantly influenced amphipod abundance and diversity, and some substrata and biodiversity features of the pool were important in explaining the amphipod abundance. The percentage and composition of coverage and physical features of the rock pools had no significant effect on amphipod abundance and diversity. We showed that the amphipod rockpool community displayed a clear positive response of biodiversity and abundance to the extrinsic factor wave action, and a varied and complex response to within-rockpool biotic variables. In addition, we recorded the presence of the invasive Ampithoe valida for the first time on rocky shores of Portugal. Further investigation into the influence that wave action has on associated pool biota (i.e., dislodgment or deposition of species) could give additional insight into the role of the biotic community in the regulation of amphipod populations within intertidal rock pools



中文翻译:

环境因素影响潮间带岩池中两栖动物的数量和分布

潮间带岩池被认为是沿海沿岸的重要栖息地。两栖动物在潮间带岩池生态系统中起着重要作用,它是营养水平较高的食物资源,有时甚至通过放牧来丰富营养。但是,驱动其岩池占领的环境因素仍是未知之数。我们旨在研究大规模的波浪作用变化和中尺度海岸变化对岩池两栖动物的丰富度和多样性的重要性。在2015年夏季春季潮汐期间,总共研究了葡萄牙四个海岸上的32个潮间带岩石池。我们应用了多元分析来评估波浪作用(避震海岸与波浪暴露海岸),物理水池结构(长度,宽度和宽度)的潜在影响。深度),池社区内部关于两栖类动物数量和多样性的关系。波浪暴露对两栖动物的丰度和多样性有显着影响,池中的某些地下和生物多样性特征对于解释两栖动物的丰度很重要。岩石池的覆盖率和组成以及物理特征对两栖动物的丰度和多样性没有显着影响。我们表明,两栖类岩石池群落对生物多样性和丰富度对外部因素波浪作用表现出明显的积极反应,对岩石池内生物变量表现出多样而复杂的反应。此外,我们记录了侵入性 池中的某些地下和生物多样性特征对于解释两栖动物的丰度很重要。岩石池的覆盖率和组成以及物理特征对两栖动物的丰度和多样性没有显着影响。我们表明,两栖类岩石池群落对生物多样性和丰富度对外部因素波浪作用表现出明显的积极反应,对岩石池内生物变量表现出多样而复杂的反应。此外,我们记录了侵入性 池中的某些地下和生物多样性特征对于解释两栖动物的丰度很重要。岩石池的覆盖率和组成以及物理特征对两栖动物的丰度和多样性没有显着影响。我们表明,两栖类岩石池群落对生物多样性和丰富度对外部因素波浪作用表现出明显的积极反应,对岩石池内生物变量表现出多样而复杂的反应。此外,我们记录了侵入性 以及对岩池内生物变量的多样而复杂的反应。此外,我们记录了侵入性 以及对岩池内生物变量的多样而复杂的反应。此外,我们记录了侵入性Ampithoe Valida第一次在葡萄牙的多岩石的海岸上。进一步研究波浪作用对相关池生物区系的影响(即物种的移位或沉积),可以进一步了解生物群落在潮间质池内调节两栖动物种群中的作用。

更新日期:2021-05-02
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