The impact of climate change driven multiple stressors on UK intertidal macroalgae

气候变化对英国潮间带大型藻类造成多重压力

• 批准号: 2309244
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2309244
• 关键词: impact; climate; change; driven; multiple

Many of the individual impacts of climate change have been studied, but to-date there is little information on the consequences of single, and even less on multiple stressors on macroalgae species. Current information mainly focuses on Kelp, and most pioneering work has been carried out in Australia with little information on the impacts of these stressors on macroalgae in the UK. Potential impact on UK species may well be significant, particularly as many cold-water species are being constrained to cooler waters. Not only is there a lack of information on how intertidal macroalgae in the UK may cope with climate change, there is no information on how a combination of predicted stressors may impact them. This project aims to investigate the impact of multiple stressors on UK non-kelp species, with a focus on a variety of common species to provide an inventory of susceptibility which will be combined with UK climate-based predictions to model future distributions. This may well result in a change in dominant species, which may have a significant impact on the ecosystem and therefore both its functions and services. The wider context of this project impinges on the "blue carbon budget" of coastal ecosystems. While often under-rated, intertidal and shallow sub-tidal macroalgae make a considerable contribution to local and regional carbon fixation and the fate of this carbon is not well explained. The potential loss of this carbon sink would mark a significant reduction in the value of ecosystem services to the coastal zone and hence the understanding of the effects of multiple stressors on common algae is timely and important. The importance of this research is based on the novel application of multiple stressors on intertidal macroalgal communities. This project will improve fundamental understanding of intertidal macroalgal ecology under the pressures of global change. Specifically, their responses to changes in dose and sequence of multiple stressors. These responses will be examined both in the lab followed by in the field to understand the impacts on associated communities and combined with other research to predict distributional changes of key intertidal algal species. This has importance for intertidal ecology and the ecosystem services that such systems provide to society. Information from this work will have both commercial (seaweed harvesting) and management and regulation (SNH, Marine Science Scotland) for the future resilience and protection of these habitats. Output from this research has implications for seaweed harvesting in Scotland. Significant changes in seaweed distribution and health could have detrimental impacts on small and isolated communities.

气候变化的许多个体影响已经被研究过，但到目前为止，关于单一压力对大型藻类物种的影响的信息很少，关于多种压力因素对大型藻类物种的影响的信息更少。目前的信息主要集中在海带上，大多数开创性的工作都是在澳大利亚进行的，关于这些应激源对英国大型藻类的影响的信息很少。对英国物种的潜在影响很可能是重大的，特别是因为许多冷水物种正被限制在更凉爽的水域。不仅缺乏关于英国潮间带大型藻类如何应对气候变化的信息，也没有关于预测的压力因素组合可能如何影响它们的信息。该项目旨在调查多种应激源对英国非海带物种的影响，重点关注各种常见物种，以提供易感性清单，并结合英国基于气候的预测来模拟未来的分布。这很可能导致优势物种的变化，这可能会对生态系统产生重大影响，从而对其功能和服务产生重大影响。该项目的更广泛背景影响到沿海生态系统的“蓝碳预算”。虽然往往被低估，潮间带和浅潮下大型藻类对当地和区域的碳固定做出了相当大的贡献，这种碳的命运没有得到很好的解释。这种碳汇的潜在损失将标志着海岸带生态系统服务价值的显着下降，因此，了解多种应激源对常见藻类的影响是及时和重要的。这项研究的重要性是基于多种应激源在潮间带大型藻类群落中的新应用。该项目将提高对全球变化压力下潮间带大型藻类生态的基本认识。具体地说，他们对多种应激源的剂量和顺序的变化的反应。这些反应将在实验室中进行检查，然后在实地了解对相关群落的影响，并与其他研究相结合，以预测关键潮间带藻类物种的分布变化。这对潮间带生态和这类系统为社会提供的生态系统服务具有重要意义。这项工作提供的信息将对未来这些栖息地的复原力和保护具有商业意义(海藻收获)和管理和监管(苏格兰海洋科学协会)。这项研究的结果对苏格兰的海藻收获有一定的影响。海藻分布和健康方面的重大变化可能对小型和与世隔绝的社区产生不利影响。