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首页> 外文期刊>Marine ecology progress series >A baitbox for all seasons: temporal shifts in a vector's propagule supply characteristics and implications for invasion ecology
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A baitbox for all seasons: temporal shifts in a vector's propagule supply characteristics and implications for invasion ecology

机译：所有季节的一个饵料箱：在向量的繁殖传播特征和侵犯生态学的影响中的时间转移

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摘要

Invasion dynamics are influenced by both vector operation and propagule pressure. Which propagules are entrained in a vector depends on how, where, and when a vector operates, but the timing and effects of vector operations on species delivery patterns is poorly resolved. Using the live marine baitworm trade, we tested vector selectivity across 3 boreal seasons (summer 2011, fall 2011, and spring 2012). We compared macroinvertebrate assemblages at the source (Maine, US east coast field) and in baitboxes upon delivery (Mid-Atlantic distributors, US east coast) and quantified live and dead biota to test for interactive effects of season and vector stage (i.e. source vs. destination) on per capita abundance, species richness, diversity, functional richness, and community composition. In all, we identified 46 262 hitchhiking macro-organisms from 56 distinct taxa. Among live biota, taxonomic richness, functional group richness, and abundance differed by vector stage and season. Community composition showed seasonality for functional groups, but not for taxonomic groups. Vector stage affected dead community composition more than season, implying that vector operations (i.e. handling at source and during shipping) filter species transfers differentially. Dead communities were typically composed of the most abundant live organisms in the same baitboxes, emphasizing how important propagule pressure is to successful transport. Some combinations of 5 key functional traits (body size, feeding mode, growth form, modularity, and motility) were associated with increased survival during vector transfer. Successful species transfers are correlated with specific functional traits and propagule pressure, both of which are influenced by seasonal variation.
机译：侵入动力学受到载体操作和传播压力的影响。夹带在向量中的宣传取决于矢量操作的操作方式，但是在物种传递模式上的矢量操作的定时和效果差异很差。使用现场海洋薄虫贸易，我们测试了3个博赛季的传染媒介选择性（2011年夏季，2011年秋季和2012年春季）。我们比较了源（美国缅因州，美国东海岸地区）和贝盒（中大西洋经销商，美国东海岸）和量化和死去的生物堂来测试季节和向量阶段的互动效果（即来源VS 。目的地）人均丰富，物种丰富，多样性，功能丰富，社区组成。总而言之，我们确定了来自56个不同的分类群的46 262次搭便车宏观生物。在现场生物系中，分类学丰富，功能群体丰富，和丰富的传染媒介阶段和季节不同。社区成分显示功能群体的季节性，但不是分类群。传染媒介阶段影响死亡社区构成的更多季节，暗示了传染媒介操作（即，在源头和运输过程中处理）过滤器物种差异化。死亡社区通常由相同饵料箱中最丰富的活体组成，强调宣传压力如何成功运输。在载体转移过程中，5个关键功能性状（体尺寸，饲养模式，生长形式，模态和运动性）的一些组合与增加的存活率相关。成功的物种转移与特定的功能性状和传播压力相关，两者都受到季节变异的影响。

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  • 来源
    《Marine ecology progress series》 |2020年第may7期|13-24|共12页
  • 作者

    Fowler Amy E.; Blakeslee April M. H.; Canning-Clode Joao; Repetto Michele F.; Ruiz Gregory M.; Miller A. Whitman;

  • 作者单位

    George Mason Univ Dept Environm Sci & Policy Fairfax VA 22030 USA|Smithsonian Environm Res Ctr Marine Invas Lab Edgewater MD 21037 USA;

    Smithsonian Environm Res Ctr Marine Invas Lab Edgewater MD 21037 USA|East Carolina Univ Biol Dept Greenville NC 27858 USA;

    Smithsonian Environm Res Ctr Marine Invas Lab Edgewater MD 21037 USA|Agenda Reg Desenvolvimento Invest Tecnol & Inovac MARE Marine & Environm Sci Ctr P-9020105 Madeira Portugal;

    Smithsonian Environm Res Ctr Marine Invas Lab Edgewater MD 21037 USA|Temple Univ Biol Dept Philadelphia PA 19122 USA;

    Smithsonian Environm Res Ctr Marine Invas Lab Edgewater MD 21037 USA;

    Smithsonian Environm Res Ctr Marine Invas Lab Edgewater MD 21037 USA;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Invasive species; Functional diversity; Marine bait; Propagule pressure;

    机译：侵入物种;功能多样性;海洋诱饵;繁殖压力;

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