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首页> 外文期刊>Estuarine Coastal and Shelf Science >The invasive barnacle species, Austrominius modestus: Its status and competition with indigenous barnacles on the Isle of Cumbrae, Scotland
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The invasive barnacle species, Austrominius modestus: Its status and competition with indigenous barnacles on the Isle of Cumbrae, Scotland

机译：侵入性藤壶物种Austromtinius modetus：其地位和与苏格兰坎布雷岛上的土著藤壶的竞争

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摘要

The invasive barnacle Austrominius (= Elminius) modestus has been present in Europe since the 1940s, and has recently been recorded to outnumber native barnacle species at some locations, including an Irish marine nature reserve. It has been suggested that these increases in abundance following a lag phase since establishment, represent the awakening of an 'ecological sleeper', due to changes in environmental conditions. Austrominius modestus was first recorded on the Isle of Cumbrae, Scotland in 1955, and was reported to be well established on the island by 2007. Since this location is close to the northern limit of the invaded range of A. modestus, it has been chosen as a site for the long term monitoring of this species. Quantitative and semi-quantitative surveys of the abundance of A. modestus, together with the native barnacle species Chthamalus montagui and Semibalanus balanoides, have been made on the island on a biannual basis since 2009. This study examined changes in the abundances of these three species from 2009 to 2013, and reports on the present status of this invasive species on the island. Austrominius modestus was found at all sites surveyed, but did not outnumber native barnacle species at any site. Semibalanus balanoides, a cold water boreal species, was the most abundant barnacle species at most sites from 2009 to 2013. All three barnacle species underwent a decline in 2011, but had increased in abundance by 2013. Despite undergoing the smallest increase in abundance between 2011 and 2013, S. balanoides remains the dominant barnacle species on the Isle of Cumbrae. Nearly sixty years after its initial discovery on the island, A. modestus is widespread, however it has not outnumbered native species, which continue to recruit at high densities. This competitive pressure makes it unlikely that A. modestus will outnumber native barnacle species at this location, close to its northern limit, in the near future.
机译：自1940年代以来，入侵藤壶Austrominius（= Elminius）模蝇已经在欧洲出现，最近据记录在某些地方，包括爱尔兰海洋自然保护区，其原生藤壶种类已超过其数量。已经提出，自建立以来，在滞后阶段之后，这些丰度的增加表示由于环境条件的变化，“生态睡眠者”的觉醒。 Austrominiusmodestus于1955年首次记录在苏格兰的坎布雷岛上，据报道到2007年在岛上已经完全建立。由于该位置接近A.modestus入侵范围的北限，因此已选择它作为对该物种进行长期监测的场所。自2009年以来，该岛每两年一次对模式拟南芥的丰度以及本地藤壶物种Chthamalus montagui和Semibalanus balanoides进行定量和半定量调查。该研究调查了这三个物种的丰度变化从2009年到2013年，并报告了该入侵物种在岛上的现状。在所有接受调查的地点都发现了澳大利亚古猿，但在任何地点都没有超过当地的藤壶物种。 Semibalanus balanoides是一种冷水北方物种，​​在2009年至2013年期间是大多数地点中最丰富的藤壶物种。2011年，这三种藤壶物种均下降，但到2013年其丰度增加。尽管在2011年之间的丰度增幅最小和2013年，S。balanoides仍然是Cumbrae岛上的主要藤壶物种。在岛上首次发现后将近六十年，A.modetus广泛分布，但是它的数量仍未超过本地物种，后者以高密度继续招募。这种竞争压力使A.modetus在不久的将来不太可能在该地点接近其北部界限的地方超过当地的藤壶种类。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2015年第5期|134-141|共8页
  • 作者

    Mary Catherine Gallagher; John Davenport; Susan Gregory; Rob McAllen; Ruth ORiordan;

  • 作者单位

    School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre, University College Cork, The Cooperage, Distillery Fields, North Mall, Cork, Ireland;

    School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre, University College Cork, The Cooperage, Distillery Fields, North Mall, Cork, Ireland;

    School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre, University College Cork, The Cooperage, Distillery Fields, North Mall, Cork, Ireland,British Antarctic Survey, NERC High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom;

    School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre, University College Cork, The Cooperage, Distillery Fields, North Mall, Cork, Ireland;

    School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre, University College Cork, The Cooperage, Distillery Fields, North Mall, Cork, Ireland;

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  • 正文语种 eng
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  • 关键词

    invasive species; barnacle; Austrominius modestus; Semibalanus balanoides; Chthamalus montagui; climate change; Isle of Cumbrae;

    机译：入侵物种;藤壶Austrominius modetus;半鲍鱼Chthamalus montagui;气候变化;坎布雷岛;

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