Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15632 |
Marine biodiversity refugia in a climate‐sensitive subarctic shelf | |
Irene D. Alabia; Jorge Garcí; a Molinos; Takafumi Hirata; Franz J. Mueter; Toru Hirawake; Sei‐; Ichi Saitoh | |
2021-04-25 | |
发表期刊 | Global Change Biology
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出版年 | 2021 |
英文摘要 | The subarctic shelf of the Eastern Bering Sea (EBS) is one of the world's most productive marine environments, exposed to drastic climate changes characterized by extreme fluctuations in temperature, sea ice concentration, timing, and duration. These climatic changes elicit profound responses in species distribution, abundance, and community composition. Here, we examined the patterns of alpha and temporal beta diversity of 159 marine taxa (66 vertebrates and 93 invertebrate species) from 29 years (1990–2018) of species observations from the NOAA bottom trawl surveys in the EBS. Based on these data, we identified geographically distinct refugial zones in the northern and southern regions of the middle shelf, defined by high species richness and similarity in community species composition over time. These refugial zones harbor higher frequencies of occurrence for representative taxa relative to the regions outside of refugia. We also explored the primary environmental factors structuring marine biodiversity distributions, which underpinned the importance of the winter sea ice concentration to alpha and temporal beta diversity. The spatial biodiversity distributions between high and low winter sea ice regimes highlighted contrasting signals. In particular, the latter showed elevated species richness compared to the former. Further, the temporal beta diversity between the high and low winter sea ice periods underpinned an overall increase in the compositional similarity of marine communities in the EBS. Despite these spatiotemporal differences in biodiversity distributions, the identified refugia represent safe havens of marine biodiversity in the EBS. Distinguishing these areas can help facilitate conservation and management efforts under accelerated and ongoing climatic changes. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/323996 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Irene D. Alabia,Jorge Garcí,a Molinos,等. Marine biodiversity refugia in a climate‐sensitive subarctic shelf[J]. Global Change Biology,2021. |
APA | Irene D. Alabia.,Jorge Garcí.,a Molinos.,Takafumi Hirata.,Franz J. Mueter.,...&Ichi Saitoh.(2021).Marine biodiversity refugia in a climate‐sensitive subarctic shelf.Global Change Biology. |
MLA | Irene D. Alabia,et al."Marine biodiversity refugia in a climate‐sensitive subarctic shelf".Global Change Biology (2021). |
条目包含的文件 | 条目无相关文件。 |
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