Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15589 |
Seagrass (Halophila stipulacea) invasion enhances carbon sequestration in the Mediterranean Sea | |
Marlene Wesselmann; Nathan R. Geraldi; Carlos M. Duarte; Jordi Garcia‐; Orellana; Rubé; n Dí; az‐; Rú; a; Ariane Arias‐; Ortiz; Iris E. Hendriks; Eugenia T. Apostolaki; Nú; ria Marbà | |
2021-04-12 | |
发表期刊 | Global Change Biology |
出版年 | 2021 |
英文摘要 | The introduction and establishment of exotic species often result in significant changes in recipient communities and their associated ecosystem services. However, usually the magnitude and direction of the changes are difficult to quantify because there is no pre‐introduction data. Specifically, little is known about the effect of marine exotic macrophytes on organic carbon sequestration and storage. Here, we combine dating sediment cores (210Pb) with sediment eDNA fingerprinting to reconstruct the chronology of pre‐ and post‐arrival of the Red Sea seagrass Halophila stipulacea spreading into the Eastern Mediterranean native seagrass meadows. We then compare sediment organic carbon storage and burial rates before and after the arrival of H. stipulacea and between exotic (H. stipulacea) and native (C. nodosa and P. oceanica) meadows since the time of arrival following a Before‐After‐Control‐Impact (BACI) approach. This analysis revealed that H. stipulacea arrived at the areas of study in Limassol (Cyprus) and West Crete (Greece) in the 1930s and 1970s, respectively. Average sediment organic carbon after the arrival of H. stipulacea to the sites increased in the exotic meadows twofold, from 8.4 ± 2.5 g Corg m−2 year−1 to 14.7 ± 3.6 g Corg m−2 year−1, and, since then, burial rates in the exotic seagrass meadows were higher than in native ones of Cymodocea nodosa and Posidonia oceanica. Carbon isotopic data indicated a 50% increase of the seagrass contribution to the total sediment Corg pool since the arrival of H. stipulacea. Our results demonstrate that the invasion of H. stipulacea may play an important role in maintaining the blue carbon sink capacity in the future warmer Mediterranean Sea, by developing new carbon sinks in bare sediments and colonizing areas previously occupied by the colder thermal affinity P. oceanica. |
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/322786 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Marlene Wesselmann,Nathan R. Geraldi,Carlos M. Duarte,et al. Seagrass (Halophila stipulacea) invasion enhances carbon sequestration in the Mediterranean Sea[J]. Global Change Biology,2021. |
APA | Marlene Wesselmann.,Nathan R. Geraldi.,Carlos M. Duarte.,Jordi Garcia‐.,Orellana.,...&ria Marbà.(2021).Seagrass (Halophila stipulacea) invasion enhances carbon sequestration in the Mediterranean Sea.Global Change Biology. |
MLA | Marlene Wesselmann,et al."Seagrass (Halophila stipulacea) invasion enhances carbon sequestration in the Mediterranean Sea".Global Change Biology (2021). |
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