Little clams with big potential: nutrient release by invasive Corbicula fluminea can exceed co-occurring freshwater mussel (Unionidae) assemblages
Little clams with big potential: nutrient release by invasive Corbicula fluminea can exceed co-occurring freshwater mussel (Unionidae) assemblages
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小蛤蜊潜力大：入侵性河蚬释放的营养物质可以超过同时存在的淡水贻贝（Unionidae）组合
DOI：
10.1007/s10530-022-02792-9
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发表时间：
2022
影响因子：
2.9
通讯作者：
Atkinson, Carla L.
中科院分区：
文献类型：
--
作者：
Hopper, Garrett W.;Buchanan, Jonathan K.;Sánchez González, Irene;Kubala, Megan E.;Bucholz, Jamie R.;Lodato, Matthew B.;Lozier, Jeffrey D.;Atkinson, Carla L.
动物介导的营养循环研究倾向于强调原生或入侵动物，但由这两类组成的群落很常见，生物地球化学控制可能从原生物种转移到入侵物种，改变当地的营养制度。在北美河流中，共生的本土贻贝和入侵的文蛤通过滤食和生物扰动具有很强的营养循环效应。当这两组同时发生时，它们的营养循环效应的不同程度尚不清楚。我们在同一年对两条河流中每条河流的四个河段的双壳类密度、生物量和营养排泄率进行了一次量化，以测试密度和生物量的差异是否导致共存的贻贝和贝类的不同时空营养循环和化学计量学模式。我们假设高密度，再加上较小的个体大小，将使珊瑚种群水平的营养循环速率高于那些密度较低的较大身体的贻贝组合。珊瑚出现在所有贻贝床上，它们的密度通常超过贻贝的密度，但珊瑚种群的数量一直较低。高密度和更大的质量比排泄率导致在一半河段的群体水平排泄率大于或等于贻贝聚集率。相对于环境浓度，非生物条件限制了双壳类营养物质的供应，但它们的贡献在低流量时增加，并可能集中在更精细的空间尺度上。我们的结果表明，与系统发育部落相关的入侵和原生特征分布的空间差异影响了动物介导的营养循环从原生物种控制转变为入侵物种控制的可能性。总体而言，我们的研究强调了需要新的管理模式来解释入侵物种的营养循环。
Animal-mediated nutrient cycling research tends to emphasize either native or invasive fauna, yet communities comprising both groups are common, and biogeochemical control may shift from native to invasive species, altering local nutrient regimes. In North American rivers, co-occurring native mussels (Unionidae) and the invasive clam,Corbicula fluminea, have strong nutrient cycling effects through filter-feeding and bioturbation. When these two groups co-occur, the degree to which their nutrient cycling effects differ remains unclear. We quantified bivalve density, biomass, and nutrient excretion rates at four reaches in each of two rivers once during the same year to test whether differences in density and biomass led to different spatial and temporal nutrient cycling and stoichiometry patterns for co-occurring mussels andCorbicula. We hypothesized high densities, coupled with small body size would elevateCorbiculapopulation-level nutrient cycling rates above those of less dense assemblages of larger-bodied mussels.Corbiculaoccurred at all mussel beds and their densities generally exceeded mussel densities, butCorbiculabiomass was consistently lower. High densities and greater mass-specific excretion rates led toCorbiculapopulation-level excretion rates that were greater than or equal to mussel aggregate rates at half the reaches. Abiotic conditions limited bivalve nutrient supply relative to ambient concentrations, but their contributions increased during low flows and are likely concentrated at finer spatial scales. Our results suggest spatial variation in invasive and native trait distribution associated with phylogenetic tribes influences the potential for animal-mediated nutrient cycling to shift from native to invasive species control. Overall, our study highlights the need for new management paradigms that account for nutrient cycling by invasive species.
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影响因子：
2.6
作者：
Kelley TE;Hopper GW;Sánchez González I;Bucholz JR;Atkinson CL
通讯作者：
Atkinson CL
主要入侵物种因极端气候事件而大量死亡：对生态系统功能的影响
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
W. McDowell;W. McDowell;J. E. Byers
通讯作者：
J. E. Byers
侵入性雄性遗传蚬的遗传一致性和长距离克隆扩散
影响因子：
4.9
作者：
Lise;Emilie Etoundi;D. Aldridge;Jonathan Marescaux;N. Yasuda;K. Van Doninck
通讯作者：
K. Van Doninck
预测和观察到的非本地斑点叉尾鮰种群在有管理的清除后的反应，以帮助濒危鱼类的恢复
影响因子：
1.1
作者：
C. Pennock;S. Durst;B. R. Duran;B. Hines;C. Cathcart;Jason E. Davis;Benjamin J. Schleicher;N. R. Franssen
通讯作者：
N. R. Franssen
气候变化和短期土地利用土地覆盖变化对卡哈巴河流域水质影响的评估
DOI：
10.1504/ijhst.2021.10034684
发表时间：
2021
影响因子：
1.8
作者：
Pooja P. Preetha;A. Al;M. Anderson
通讯作者：
M. Anderson