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Long-term nutrient reductions lead to the unprecedented recovery of a temperate coastal region

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dc.contributor.author Lefcheck, Jonathan S. en
dc.contributor.author Orth, Robert J. en
dc.contributor.author Dennison, William C. en
dc.contributor.author Wilcox, David J. en
dc.contributor.author Murphy, Rebecca R. en
dc.contributor.author Keisman, Jennifer en
dc.contributor.author Gurbisz, Cassie en
dc.contributor.author Hannam, Michael en
dc.contributor.author Landry, J. B. en
dc.contributor.author Moore, Kenneth A. en
dc.contributor.author Patrick, Christopher J. en
dc.contributor.author Testa, Jeremy en
dc.contributor.author Weller, Donald E. en
dc.contributor.author Batiuk, Richard A. en
dc.date.accessioned 2018-03-27T13:11:34Z
dc.date.available 2018-03-27T13:11:34Z
dc.date.issued 2018
dc.identifier.citation Lefcheck, Jonathan S., Orth, Robert J., Dennison, William C., Wilcox, David J., Murphy, Rebecca R., Keisman, Jennifer, Gurbisz, Cassie, Hannam, Michael, Landry, J. B., Moore, Kenneth A., Patrick, Christopher J., Testa, Jeremy, Weller, Donald E., and Batiuk, Richard A. 2018. "<a href="https://repository.si.edu/handle/10088/35243">Long-term nutrient reductions lead to the unprecedented recovery of a temperate coastal region</a>." <em>Proceedings of the National Academy of Sciences of the United States of America</em>. 115 (14):3658&ndash;3662. <a href="https://doi.org/10.1073/pnas.1715798115">https://doi.org/10.1073/pnas.1715798115</a> en
dc.identifier.issn 0027-8424
dc.description.abstract Humans strongly impact the dynamics of coastal systems, yet surprisingly few studies mechanistically link management of anthropogenic stressors and successful restoration of nearshore habitats over large spatial and temporal scales. Such examples are sorely needed to ensure the success of ecosystem restoration efforts worldwide. Here, we unite 30 consecutive years of watershed modeling, biogeochemical data, and comprehensive aerial surveys of Chesapeake Bay, United States to quantify the cascading effects of anthropogenic impacts on submersed aquatic vegetation (SAV), an ecologically and economically valuable habitat. We employ structural equation models to link land use change to higher nutrient loads, which in turn reduce SAV cover through multiple, independent pathways. We also show through our models that high biodiversity of SAV consistently promotes cover, an unexpected finding that corroborates emerging evidence from other terrestrial and marine systems. Due to sustained management actions that have reduced nitrogen concentrations in Chesapeake Bay by 23% since 1984, SAV has regained 17,000 ha to achieve its highest cover in almost half a century. Our study empirically demonstrates that nutrient reductions and biodiversity conservation are effective strategies to aid the successful recovery of degraded systems at regional scales, a finding which is highly relevant to the utility of environmental management programs worldwide. en
dc.relation.ispartof Proceedings of the National Academy of Sciences of the United States of America en
dc.title Long-term nutrient reductions lead to the unprecedented recovery of a temperate coastal region en
dc.type Journal Article en
dc.identifier.srbnumber 145719
dc.identifier.doi 10.1073/pnas.1715798115
rft.jtitle Proceedings of the National Academy of Sciences of the United States of America
rft.volume 115
rft.issue 14
rft.spage 3658
rft.epage 3662
dc.description.SIUnit SERC en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 3658
dc.citation.epage 3662


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