Orth Robert J, Lefcheck Jonathan S, McGlathery Karen S, Aoki Lillian, Luckenbach Mark W, Moore Kenneth A, Oreska Matthew P J, Snyder Richard, Wilcox David J, Lusk Bo
Virginia Institute of Marine Science, William and Mary, 1375 Greate Road, Gloucester Point, VA 23062, USA.
Tennenbaum Marine Observatories Network, MarineGEO, Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD 21037, USA.
Sci Adv. 2020 Oct 7;6(41). doi: 10.1126/sciadv.abc6434. Print 2020 Oct.
There have been increasing attempts to reverse habitat degradation through active restoration, but few large-scale successes are reported to guide these efforts. Here, we report outcomes from a unique and very successful seagrass restoration project: Since 1999, over 70 million seeds of a marine angiosperm, eelgrass (), have been broadcast into mid-western Atlantic coastal lagoons, leading to recovery of 3612 ha of seagrass. Well-developed meadows now foster productive and diverse animal communities, sequester substantial stocks of carbon and nitrogen, and have prompted a parallel restoration for bay scallops ( Restored ecosystem services are approaching historic levels, but we also note that managers value services differently today than they did nine decades ago, emphasizing regulating in addition to provisioning services. Thus, this study serves as a blueprint for restoring and maintaining healthy ecosystems to safeguard multiple benefits, including co-benefits that may emerge as management priorities over time.
人们越来越多地尝试通过积极的恢复措施来扭转栖息地退化的局面,但据报道,很少有大规模的成功案例可指导这些努力。在此,我们报告一项独特且非常成功的海草恢复项目的成果:自1999年以来,超过7000万颗一种海洋被子植物——鳗草()的种子被播撒到大西洋中西部沿海泻湖,使3612公顷的海草得以恢复。如今,发育良好的草甸孕育了丰富多样且富有生产力的动物群落,封存了大量的碳和氮,并促使海湾扇贝()得到了同步恢复。恢复的生态系统服务正接近历史水平,但我们也注意到,如今管理者对服务的重视程度与九十年前不同,除了供给服务外,还强调调节服务。因此,本研究为恢复和维护健康生态系统以保障多种益处(包括随着时间推移可能成为管理重点的协同效益)提供了一个蓝图。