Ecological consequences of invasion across the freshwater-marine transition in a warming world.
Ecological consequences of invasion across the freshwater-marine transition in a warming world.
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DOI：
10.1002/ece3.3652
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发表时间：
2018-03
影响因子：
2.6
通讯作者：
Dolbeth M
中科院分区：
文献类型：
--
作者：
Crespo D;Solan M;Leston S;Pardal MA;Dolbeth M
河口系统的淡水-海洋过渡特征可以为入侵物种提供多种进入选择，但这种梯度在确定入侵物种功能贡献方面的相对重要性却很少受到关注。尽管许多入侵物种可以栖息在各种盐度范围内，但通常在淡水和海洋环境中评估物种入侵的生态后果。我们研究了不同大小的河蚬（一种能够适应各种温度和盐度的入侵物种）在存在和不存在变暖的情况下跨越淡水-海洋转变的功能后果。具体来说，我们描述了 C. Fluminea 如何影响流体和颗粒运输，以及介导养分循环的重要过程（NH 4-N、NO 3-N、PO 4-P）。结果表明，沉积物颗粒的再加工（生物扰动）往往受到尺寸的影响，并在较小程度上受到温度和盐度的影响；营养物浓度受到所有变量（盐度、温度和尺寸等级）之间不同相互作用的影响。我们的研究结果证明了入侵对生态系统造成的后果具有高度的环境依赖性，并强调了物种同时占据生态系统多个组成部分的潜力。认识到入侵性的这一方面对于管理和保护工作至关重要，特别是因为淡水和海洋系统往往被划分而不是被视为一个连续的单元。我们的结论是，迫切需要更全面地了解入侵物种在邻近栖息地和不同季节的分布，以便充分了解生物引入的真实范围及其生态后果。
The freshwater–marine transition that characterizes an estuarine system can provide multiple entry options for invading species, yet the relative importance of this gradient in determining the functional contribution of invading species has received little attention. The ecological consequences of species invasion are routinely evaluated within a freshwater versus marine context, even though many invasive species can inhabit a wide range of salinities. We investigate the functional consequences of different sizes of Corbicula fluminea—an invasive species able to adapt to a wide range of temperatures and salinity—across the freshwater–marine transition in the presence versus absence of warming. Specifically, we characterize how C. fluminea affect fluid and particle transport, important processes in mediating nutrient cycling (NH 4‐N, NO 3‐N, PO 4‐P). Results showed that sediment particle reworking (bioturbation) tends to be influenced by size and to a lesser extent, temperature and salinity; nutrient concentrations are influenced by different interactions between all variables (salinity, temperature, and size class). Our findings demonstrate the highly context‐dependent nature of the ecosystem consequences of invasion and highlight the potential for species to simultaneously occupy multiple components of an ecosystem. Recognizing of this aspect of invasibility is fundamental to management and conservation efforts, particularly as freshwater and marine systems tend to be compartmentalized rather than be treated as a contiguous unit. We conclude that more comprehensive appreciation of the distribution of invasive species across adjacent habitats and different seasons is urgently needed to allow the true extent of biological introductions, and their ecological consequences, to be fully realized.
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影响因子：
16.8
作者：
Gardner, Janet L.;Peters, Anne;Heinsohn, Robert
通讯作者：
Heinsohn, Robert
影响因子：
2.8
作者：
Franco, J. N.;Ceia, F. R.;Neto, J. M.
通讯作者：
Neto, J. M.
DOI：
10.1098/rstb.2013.0186
发表时间：
2013-10-05
影响因子：
6.3
作者：
Godbold, Jasmin A.;Solan, Martin
通讯作者：
Solan, Martin
影响因子：
2.4
作者：
Dolbeth, M.;Cusson, M.;Pardal, M. A.
通讯作者：
Pardal, M. A.
影响因子：
4.2
作者：
Gilbertson, William W.;Solan, Martin;Prosser, James I.
通讯作者：
Prosser, James I.