Assessing tidal marsh resilience to sea-level rise at broad geographic scales with multi-metric indices
| Autor: | Kenneth B. Raposa, Denise Sanger, Jordan Mora, Scott Lerberg, Rachel Stevens, Brandon J. Puckett, Jeffrey A. Crooks, Kerstin Wasson, Suzanne Shull, Sarah H. Fernald, Patricia Delgado, Lyndie A. Hice, Erik M. Smith, Matthew C. Ferner, Alicia Helms, Lindsay Spurrier |
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| Jazyk: | angličtina |
| Předmět: |
0106 biological sciences
Marsh Sea-level rise 010504 meteorology & atmospheric sciences Wetland National Estuarine Research Reserve System (NERRS) Assessment 01 natural sciences Ecosystem services Ecosystem Resilience (network) Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Nature and Landscape Conservation geography geography.geographical_feature_category Resilience business.industry 010604 marine biology & hydrobiology Environmental resource management Index Habitat Salt marsh Environmental science Coastal management business |
| Zdroj: | Biological Conservation. :263-275 |
| ISSN: | 0006-3207 |
| DOI: | 10.1016/j.biocon.2016.10.015 |
| Popis: | Tidal marshes and the ecosystem services they provide may be at risk from sea-level rise (SLR). Tidal marsh resilience to SLR can vary due to differences in local rates of SLR, geomorphology, sediment availability and other factors. Understanding differences in resilience is critical to inform coastal management and policy, but comparing resilience across marshes is hindered by a lack of simple, effective analysis tools. Quantitative, multi-metric indices are widely employed to inform management of benthic aquatic ecosystems, but not coastal wetlands. Here, we develop and apply tidal marsh resilience to sea-level rise (MARS) indices incorporating ten metrics that contribute to overall marsh resilience to SLR. We applied MARS indices to tidal marshes at 16 National Estuarine Research Reserves across the conterminous U.S. This assessment revealed moderate resilience overall, although nearly all marshes had some indication of risk. Pacific marshes were generally more resilient to SLR than Atlantic ones, with the least resilient marshes found in southern New England. We provide a calculation tool to facilitate application of the MARS indices to additional marshes. MARS index scores can inform the choice of the most appropriate coastal management strategy for a marsh: moderate scores call for actions to enhance resilience while low scores suggest investment may be better directed to adaptation strategies such as creating opportunities for marsh migration rather than attempting to save existing marshes. The MARS indices thus provide a powerful new approach to evaluate tidal marsh resilience and to inform development of adaptation strategies in the face of SLR. |
| Databáze: | OpenAIRE |
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