Environmental DNA provides higher resolution assessment of riverine biodiversity and ecosystem function via spatio-temporal nestedness and turnover partitioning.
Environmental DNA provides higher resolution assessment of riverine biodiversity and ecosystem function via spatio-temporal nestedness and turnover partitioning.
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DOI：
10.1038/s42003-021-02031-2
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发表时间：
2021-05-03
影响因子：
5.9
通讯作者：
Creer S
中科院分区：
文献类型：
--
作者：
Seymour M;Edwards FK;Cosby BJ;Bista I;Scarlett PM;Brailsford FL;Glanville HC;de Bruyn M;Carvalho GR;Creer S
快速评估生物多样性对于环境监测至关重要；然而，传统方法仅限于大多数生态系统所需的范围。与传统方法相比，基于环境 DNA (eDNA) 的评估扩大了生物多样性评估的范围，同时还提高了采样效率并缩短了处理时间。在这里，我们利用 eDNA 和传统采样，通过时空动态研究了土地利用和季节性对源头群落丰富度和功能多样性的影响。我们发现，与传统采样相比，eDNA 在评估时间和空间生物多样性动态方面提供了更高的分辨率。群落丰富度与季节相关，在春季和夏季达到顶峰，与局部嵌套相比，时间更替对群落组成的影响更大。总体而言，我们对生态系统功能的评估表明，群落形成是由区域资源可用性驱动的，这意味着应考虑区域管理要求。我们的研究结果表明，基于 eDNA 的生态评估是一种强大、快速且有效的评估策略，可以对群落多样性和生态系统功能进行复杂的时空研究，而这在以前使用传统方法是不可行的。马修·西摩等人。将 eDNA 与传统的生物多样性指标进行比较，以评估威尔士河流域在空间和时间以及可变土地利用方面的功能多样性。他们的结果表明，eDNA 可以产生更高的生物多样性分辨率，并可靠地检测群落和功能多样性的时空变化。
Rapidly assessing biodiversity is essential for environmental monitoring; however, traditional approaches are limited in the scope needed for most ecological systems. Environmental DNA (eDNA) based assessment offers enhanced scope for assessing biodiversity, while also increasing sampling efficiency and reducing processing time, compared to traditional methods. Here we investigated the effects of landuse and seasonality on headwater community richness and functional diversity, via spatio-temporal dynamics, using both eDNA and traditional sampling. We found that eDNA provided greater resolution in assessing biodiversity dynamics in time and space, compared to traditional sampling. Community richness was seasonally linked, peaking in spring and summer, with temporal turnover having a greater effect on community composition compared to localized nestedness. Overall, our assessment of ecosystem function shows that community formation is driven by regional resource availability, implying regional management requirements should be considered. Our findings show that eDNA based ecological assessment is a powerful, rapid and effective assessment strategy that enables complex spatio-temporal studies of community diversity and ecosystem function, previously infeasible using traditional methods. Mathew Seymour et al. compare eDNA with traditional biodiversity metrics to assess the functional diversity of a river basin in Wales over space and time and variable land use. Their results show that eDNA can generate greater biodiversity resolution and reliably detect spatio-temporal changes in community and functional diversity.
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DOI：
10.1073/pnas.1813843115
发表时间：
2018-11-13
影响因子：
11.1
作者：
Carraro L;Hartikainen H;Jokela J;Bertuzzo E;Rinaldo A
通讯作者：
Rinaldo A
EDNA水溶液的年度时间序列分析揭示了湖泊生态系统生物多样性的生态相关动力学。
影响因子：
16.6
作者：
Bista I;Carvalho GR;Walsh K;Seymour M;Hajibabaei M;Lallias D;Christmas M;Creer S
通讯作者：
Creer S
影响因子：
4.8
作者：
Flynn, Dan F. B.;Mirotchnick, Nicholas;Naeem, Shahid
通讯作者：
Naeem, Shahid
影响因子：
--
作者：
Haase, Peter;Pauls, Steffen U.;Sundermann, Andrea
通讯作者：
Sundermann, Andrea
影响因子：
5.1
作者：
Crookes, Steven;Heer, Tej;Foxcroft, Llewellyn C.
通讯作者：
Foxcroft, Llewellyn C.