Applying marine historical ecology to quantify long-term change in coastal ecosystems

应用海洋历史生态学量化沿海生态系统的长期变化

• 批准号: RGPIN-2017-06821
• 负责人: McKechnie, Iain
• 金额: $ 2.11万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=631804
• 关键词: Applying; marine; historical; ecology; quantify

Ecological dynamics span nested scales of space and time, but determining the rate and consequences of ecological and environmental change can be difficult as studies are often spatially constrained and lack temporal depth. Over the past 300 years, anthropogenically driven shifts have occurred in the global oceans, influencing the distribution, abundance, and size structure of various marine organisms. The ecosystem consequences of these shifts have only recently been identified and thus the specific implications for management and conservation are still being evaluated. Concurrently, there has been increased recognition that archaeological data can extend historical ecosystem baselines in both time and space. Archaeological sites, and the animal remains preserved therein, represent archives of human and ecological history spanning millennia. As such, they have potential to reveal long-term ecological dynamics and change, and also to offer a direct line of inquiry into global bio-geochemical processes via environmental proxies of temperature, ocean acidification, and resource subsidies.

生态动态跨越空间和时间的嵌套尺度，但确定生态和环境变化的速度和后果可能很困难，因为研究往往受到空间限制，缺乏时间深度。在过去的300年里，全球海洋发生了人类驱动的变化，影响了各种海洋生物的分布、丰度和大小结构。直到最近才确定这些变化的生态系统后果，因此对管理和养护的具体影响仍在评估中。与此同时，人们越来越认识到，考古数据可以在时间和空间上扩展历史生态系统基线。考古遗址和保存在其中的动物遗骸代表着跨越数千年的人类和生态历史的档案。因此，它们有可能揭示长期的生态动态和变化，并通过温度、海洋酸化和资源补贴等环境指标提供对全球生物地球化学过程的直接调查。