Long-term changes in ecological functioning of temperate shelf sea benthic communities

Shojaei Mehdi Ghodrati; Gutow Lars; Dannheim Jennifer; Schroeder Alexander; Brey Thomas

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Long-term changes in ecological functioning of temperate shelf sea benthic communities

机译：温带架子底栖社区温带生态运作的长期变化

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The functioning of ecosystems is decisively dependent on the composition and distribution of the functional traits of the constituent species. We used trait analysis to represent aspects of marine benthic functioning, using a 20-year time-series (1992-2011) on macrozoobenthos collected annually at four monitoring sites in the southern North Sea. Temporal patterns of trait composition and taxonomic composition were compared to test whether they exhibited similar or contrasting responses to environmental change. Temporal changes in trait composition were more similar among monitoring sites than the changes in the taxonomic composition suggesting that trait compositions converge towards a common structure sculpted by common environmental drivers. The relationship between species richness and functional diversity displayed a power-shaped curve with a shallow slope, implying considerable functional redundancy among species. The temporal trends in functional diversity were relatively stable as compared to taxonomic diversity, with only two irregularities coinciding with exceptionally cold winter events in the North Sea in 1995 and 2009. Following the temporary changes in ecological functioning, the functional diversity returned to previous levels within one year. The rapid functional recovery of the benthic infauna confirms the self-organizing ability of the ecosystem in response to stressors and may be attributed to the high functional redundancy in the temperate shelf sea system of the North Sea.

机译：生态系统的运作果断地依赖于组成物种功能性状的组成和分布。我们使用特质分析来代表海洋底态功能的各个方面，在北海南海的四个监测网站上每年收集20年的时间系列（1992-2011）。比较特征组合物和分类组合物的时间模式，以测试它们是否表现出与环境变化相似或对比的反应。特征组合的时间变化在监测位点比分类学组合物的变化更相似，表明特质组合物朝着普通环境司机雕刻的共同结构趋同。物种丰富性和功能多样性之间的关系显示了具有浅坡的动力形曲线，暗示物种之间的相当多的功能冗余。与分类学多样性相比，功能多样性的时间趋势相对稳定，1995年和2009年的北海冬季事件中只有两个违规行为。在生态运作的暂时变化之后，功能多样性归还以内一年。 Benthic Infauna的快速功能恢复证实了生态系统的自组织能力，以应对压力源，并且可能归因于北海的温带架子系统中的高功能冗余。

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《Estuarine Coastal and Shelf Science》 |2021年第5期|107097.1-107097.9|共9页
作者
Shojaei Mehdi Ghodrati; Gutow Lars; Dannheim Jennifer; Schroeder Alexander; Brey Thomas;
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作者单位

Tarbiat Modares Univ Fac Nat Resources & Marine Sci Dept Marine Biol Noor 4641776489 Iran;

Alfred Wegener Inst Helmholtz Ctr Polar & Marine Handelshafen 12 D-27570 Bremerhaven Germany;

Alfred Wegener Inst Helmholtz Ctr Polar & Marine Handelshafen 12 D-27570 Bremerhaven Germany|Univ Oldenburg HIFMB Helmholtz Inst Funct Marine Biodivers Ammerlander Heerstr 231 D-26129 Oldenburg Germany;

Coastal Def & Nat Conservat Agcy Lower Saxony Water Management Oldenburg Germany;

Alfred Wegener Inst Helmholtz Ctr Polar & Marine Handelshafen 12 D-27570 Bremerhaven Germany|Univ Oldenburg HIFMB Helmholtz Inst Funct Marine Biodivers Ammerlander Heerstr 231 D-26129 Oldenburg Germany|Univ Bremen Bibliothekstr 1 D-28359 Bremen Germany;

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正文语种 eng
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关键词
Functional diversity; Biological traits; Trait-based approach; Ecological functioning; Long-term change; Macrozoobenthos;

机译：功能多样性;生物学特性;基于特质的方法;生态功能;长期变化;宏子杂志;

Long-term changes in ecological functioning of temperate shelf sea benthic communities

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