Limited congruence exhibited across microbial, meiofaunal and macrofaunal benthic assemblages in a heterogeneous coastal environment.
Limited congruence exhibited across microbial, meiofaunal and macrofaunal benthic assemblages in a heterogeneous coastal environment.
复制标题
DOI：
10.1038/s41598-018-33799-9
复制
发表时间：
2018-10-19
影响因子：
4.6
通讯作者：
Johnson MP
中科院分区：
文献类型：
--
作者：
Cronin-O'Reilly S;Taylor JD;Jermyn I;Allcock AL;Cunliffe M;Johnson MP
研究空间复杂环境的生态学的最常见方法之一是检查存在的单一生物组合，例如大型无脊椎动物。这种方法的基础是假设采样和未采样的类群对环境梯度的响应相似，并且在不同地点表现出一致性。这些假设在普利茅斯湾（一个有许多不同污染源的港口）的五个不同大小的底栖类群（古细菌、细菌、微生物真核生物/原生生物、小型动物和大型动物）中进行了测试。沉积物的粒度、碳氢化合物和痕量金属浓度各不相同。变量减少后，典型对应分析未发现沉积物特征与古细菌或大型动物的组合组成之间存在任何关联。相反，细菌的变化与粒度、痕量金属变化和生物扰动（例如群落生物扰动潜力）相关。原生生物随粒度、碳氢化合物和痕量金属预测因子的不同而变化。小型动物群变异与碳氢化合物和生物扰动预测因素相关。地点之间的分类单元更替各不相同，只有十分之三的组对表现出一致性（小型动物群-原生动物群、小型动物群-大型动物群和原生动物群-大型动物群）。虽然我们的结果支持使用真核类群作为其他类群的代表，但缺乏一致性表明应谨慎从单个生物组合的研究中推断出更广泛的指标或功能解释。
One of the most common approaches for investigating the ecology of spatially complex environments is to examine a single biotic assemblage present, such as macroinvertebrates. Underlying this approach are assumptions that sampled and unsampled taxa respond similarly to environmental gradients and exhibit congruence across different sites. These assumptions were tested for five benthic groups of various sizes (archaea, bacteria, microbial eukaryotes/protists, meiofauna and macrofauna) in Plymouth Sound, a harbour with many different pollution sources. Sediments varied in granulometry, hydrocarbon and trace metal concentrations. Following variable reduction, canonical correspondence analysis did not identify any associations between sediment characteristics and assemblage composition of archaea or macrofauna. In contrast, variation in bacteria was associated with granulometry, trace metal variations and bioturbation (e.g. community bioturbation potential). Protists varied with granulometry, hydrocarbon and trace metal predictors. Meiofaunal variation was associated with hydrocarbon and bioturbation predictors. Taxon turnover between sites varied with only three out of 10 group pairs showing congruence (meiofauna-protists, meiofauna-macrofauna and protists-macrofauna). While our results support using eukaryotic taxa as proxies for others, the lack of congruence suggests caution should be applied to inferring wider indicator or functional interpretations from studies of a single biotic assemblage.
登录
查看更多内容
影响因子：
2.6
作者：
Brown, Emily A.;Chain, Frederic J. J.;Crease, Teresa J.;MacIsaac, Hugh J.;Cristescu, Melania E.
通讯作者：
Cristescu, Melania E.
影响因子：
5.8
作者：
Aube, Johanne;Senin, Pavel;Goni-Urriza, Marisol
通讯作者：
Goni-Urriza, Marisol
影响因子：
11
作者：
Blazewicz, Steven J.;Barnard, Romain L.;Firestone, Mary K.
通讯作者：
Firestone, Mary K.
影响因子：
5
作者：
Carrigg, Cora;Rice, Olivia;O'Flaherty, Vincent
通讯作者：
O'Flaherty, Vincent
影响因子：
10.1
作者：
Luo, Y;Su, B;Field, CB
通讯作者：
Field, CB