生物和海洋生态系统中环境DNA粒子的空间扩散:综述与综合

IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Toshiaki S. Jo , Hiroaki Murakami , Ryosuke Nakadai
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引用次数: 0

摘要

了解环境 DNA(eDNA)颗粒的迁移,包括其下游迁移、扩散和沉积,对于正确评估其在野外信号的空间尺度至关重要。尽管河流 eDNA 迁移研究取得了相对进展,但 eDNA 在湖泊(池塘和湖泊)和海洋(海洋和海岸)生态系统中的扩散机制仍未得到充分研究。在此,我们综述并整合了之前关于泻湖和海洋生态系统中 eDNA 水平和垂直扩散的研究成果。我们发现在这些生态系统中缺乏研究,而且研究结果之间存在很大差异,这可能是由各种生态、水文和地理因素引起的。我们还对之前的研究进行了重新分析,以估算 eDNA 在湖泊和海洋生态系统中的水平扩散率,结果表明,eDNA 颗粒在海洋和海岸中的扩散距离远远大于在池塘和湖泊中的扩散距离。文献综述和分析表明,eDNA 的扩散水平会影响 eDNA 信号反映空间群落结构的分辨率,这可能会对 eDNA 采样策略产生积极或消极的影响。未来努力了解这些技术背景,并将 eDNA 扩散动态与环境参数联系起来,将有助于正确解释 eDNA 检测结果,并使 eDNA 分析更有效地用于保护和环境管理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spatial dispersal of environmental DNA particles in lentic and marine ecosystems: An overview and synthesis
Knowledge of the transport of environmental DNA (eDNA) particles, including its downstream transport, dispersal, and deposition, is crucial for properly assessing the spatial scale of its signals in the field. Despite the relative progress in research on riverine eDNA transport, the mechanism of eDNA dispersal in lentic (ponds and lakes) and marine (oceans and coasts) ecosystems remains understudied. Here, we reviewed and integrated the previous findings of horizontal and vertical eDNA dispersal in lentic and marine ecosystems. We showed the lack of studies in these ecosystems and substantial variabilities among their results, which could be induced by a variety of ecological, hydrological, and geographical factors. We also re-analyzed the previous studies to estimate the rates of horizontal eDNA dispersal in lentic and marine ecosystems, indicating that eDNA particles can reach substantially farther in the oceans and coasts than in the ponds and lakes. The literature review and analysis suggested that the level of eDNA dispersal influenced the resolution of eDNA signals to reflect the spatial community structures, which could further pose positive and negative impacts on the eDNA sampling strategy. Future efforts to understand such technical background and relate eDNA dispersal dynamics to environmental parameters will help properly interpret the eDNA detection results and make eDNA analysis more effective for conservation and environmental management.
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来源期刊
Ecological Indicators
Ecological Indicators 环境科学-环境科学
CiteScore
11.80
自引率
8.70%
发文量
1163
审稿时长
78 days
期刊介绍: The ultimate aim of Ecological Indicators is to integrate the monitoring and assessment of ecological and environmental indicators with management practices. The journal provides a forum for the discussion of the applied scientific development and review of traditional indicator approaches as well as for theoretical, modelling and quantitative applications such as index development. Research into the following areas will be published. • All aspects of ecological and environmental indicators and indices. • New indicators, and new approaches and methods for indicator development, testing and use. • Development and modelling of indices, e.g. application of indicator suites across multiple scales and resources. • Analysis and research of resource, system- and scale-specific indicators. • Methods for integration of social and other valuation metrics for the production of scientifically rigorous and politically-relevant assessments using indicator-based monitoring and assessment programs. • How research indicators can be transformed into direct application for management purposes. • Broader assessment objectives and methods, e.g. biodiversity, biological integrity, and sustainability, through the use of indicators. • Resource-specific indicators such as landscape, agroecosystems, forests, wetlands, etc.
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