Identifying potential drivers of distribution patterns of invasive Corbicula fluminea relative to native freshwater mussels (Unionidae) across spatial scales.
Identifying potential drivers of distribution patterns of invasive Corbicula fluminea relative to native freshwater mussels (Unionidae) across spatial scales.
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DOI：
10.1002/ece3.8737
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发表时间：
2022-03
影响因子：
2.6
通讯作者：
Atkinson CL
中科院分区：
文献类型：
--
作者：
Kelley TE;Hopper GW;Sánchez González I;Bucholz JR;Atkinson CL
本研究旨在确定生态因素的重要性，入侵蛤（Corbicula fluminea）相对于本地贻贝（家庭：蚌科）的分布格局横跨7条河流内的移动的和田纳西州盆地，美国东南部。我们定量调查了20个河流河段的密集、多样的本地贻贝集群，并估计了贻贝密度、生物量和物种丰富度沿着入侵C.河蚬属（Fluminea）。我们测量了基质颗粒的大小，速度和深度的样方，动物被收集。此外，我们的特点达到规模的环境参数，包括悬浮物的数量和质量（%碳，%氮，%磷），水化学（铵[]，可溶性活性磷[SRP]），流域面积和土地覆盖。使用模型选择，逻辑回归和多变量分析，我们的特点是栖息地的特点和它们的关联，以入侵蚬贻贝床。我们发现，蚬更容易发生和更丰富的样方与贻贝的生物量，较大的基板尺寸，更快的水流速度，和较浅的水深。在河段尺度上，蚬密度增加，粒径较大。贻贝的丰富度，密度和生物量增加流域面积。在城市土地覆盖较多的河段，水柱增加。没有土地覆盖变量影响蚬种群或贻贝社区。强烈的重叠分布的蚬和贻贝支持的假设，蚬不一定受到栖息地因素的限制，可能是乘客的变化，在河流中，贻贝下降，由于栖息地退化。在这些系统中，蚬是由贻贝促进还是与贻贝产生负面相互作用还有待观察。操纵斑块尺度变量的集中实验将提高我们对物种相互作用作用的理解（例如，竞争，捕食，促进）或物理栖息地的因素，影响蚬和本地贻贝之间的空间重叠。确定与入侵物种相对于本地物种的分布相关的环境因素是保护和管理的基础。我们的定量调查的密集，多样的本地贻贝床在河流中跨越广泛的地理区域显示，入侵河蚬更容易发生，更丰富的贻贝。入侵和本地双壳类之间的强正相关支持了C。河蚌不一定受生境因素的限制，可能是河流变化的乘客，贻贝因生境退化而减少。
This study aimed to identify the importance of ecological factors to distribution patterns of the invasive Clam (Corbicula fluminea) relative to native mussels (family: Unionidae) across seven rivers within the Mobile and Tennessee basins, Southeast United States. We quantitatively surveyed dense, diverse native mussel aggregations across 20 river reaches and estimated mussel density, biomass, and species richness along with density of invasive C. fluminea (hereafter Corbicula). We measured substrate particle size, velocity, and depth in quadrats where animals were collected. Additionally, we characterized reach scale environmental parameters including seston quantity and quality (% Carbon, % Nitrogen, % Phosphorous), water chemistry (ammonium [], soluble reactive phosphorous [SRP]), and watershed area and land cover. Using model selection, logistic regression, and multivariate analysis, we characterized habitat features and their association to invasive Corbicula within mussel beds. We found that Corbicula were more likely to occur and more abundant in quadrats with greater mussel biomass, larger substrate size, faster water velocity, and shallower water depth. At the reach scale, Corbicula densities increased where particle sizes were larger. Mussel richness, density, and biomass increased with watershed area. Water column increased at reaches with more urban land cover. No land cover variables influenced Corbicula populations or mussel communities. The strong overlapping distribution of Corbicula and mussels support the hypothesis that Corbicula are not necessarily limited by habitat factors and may be passengers of change in rivers where mussels have declined due to habitat degradation. Whether Corbicula is facilitated by mussels or negatively interacts with mussels in these systems remains to be seen. Focused experiments that manipulate patch scale variables would improve our understanding of the role of species interactions (e.g., competition, predation, facilitation) or physical habitat factors in influencing spatial overlap between Corbicula and native mussels. Identifying environmental factors associated with the distribution of invasive species relative to native species is fundamental to conservation and management. Our quantitative surveys of dense, diverse native mussel beds in rivers across a broad geographic area showed that invasive Corbicula fluminea were more likely to occur and more abundant where mussels are. The strong positive association between invasive and native bivalves support the hypothesis that C. fluminea are not necessarily limited by habitat factors and may be passengers of change in rivers where mussels have declined due to habitat degradation.
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影响因子：
2.9
作者：
Ferreira-Rodriguez, Noe;Gangloff, Michael;Atkinson, Carla L.
通讯作者：
Atkinson, Carla L.
DOI：
10.1073/pnas.1033107100
发表时间：
2003-07-22
影响因子：
11.1
作者：
Fargione, J;Brown, CS;Tilman, D
通讯作者：
Tilman, D
影响因子：
2.9
作者：
Crespo, Daniel;Dolbeth, Marina;Pardal, Miguel Angelo
通讯作者：
Pardal, Miguel Angelo
影响因子：
2.9
作者：
Ferreira-Rodriguez, Noe;Defeo, Omar;Pardo, Isabel
通讯作者：
Pardo, Isabel
影响因子：
2.6
作者：
Ferreira-Rodriguez, Noe;Pardo, Isabel
通讯作者：
Pardo, Isabel