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<p>Existing coastal wetland mitigation banks are increasingly vulnerable to climate change impacts such as sea-level rise (SLR) and saltwater intrusion, threatening restoration success, credit release, and long-term management. Consideration of existing and future vulnerabilities to coastal communities in the wetland mitigation bank site selection process would improve future outcomes to both the natural and human environment. Using remote-sensed data from national-level, freely available sources, we investigated the changes to freshwater wetlands within mitigation banks over the past 20 years to determine the extent of change. Natural hazards, including hurricanes, storm surge, and tornados were included in the analysis as potential drivers of short-term changes. We also examined two SLR scenarios, 0.3 and 0.6, meters, to estimate future pressures and potential freshwater wetland losses. Finally, we employed a vegetative index as a tool to predict declines in freshwater wetlands associated with potential saltwater intrusion. Our results show that mitigation banks have been effective in preserving freshwater wetlands but face dire risks from rising sea levels. These findings indicate a need to consider climate change drivers, especially SLR, in future planning and the management of these coastal mitigation banks.</p>

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Understanding the Effects of Climate Change on Coastal Wetlands: Implications for Managing Federal Mitigation Banks on Florida’s [USA] Gulf Coast

  • 期刊论文

  • 发表日期：

    2025年10月28日

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  • Kyle D. Buck,
  • Cynthia F. Van Der Wiele,
  • Justin J. Bousquin,
  • Robyn Polinsky,
  • Rosmin Ennis,
  • Zackary Black,
  • Molly McDaniel,
  • Drew Parker

摘要

Existing coastal wetland mitigation banks are increasingly vulnerable to climate change impacts such as sea-level rise (SLR) and saltwater intrusion, threatening restoration success, credit release, and long-term management. Consideration of existing and future vulnerabilities to coastal communities in the wetland mitigation bank site selection process would improve future outcomes to both the natural and human environment. Using remote-sensed data from national-level, freely available sources, we investigated the changes to freshwater wetlands within mitigation banks over the past 20 years to determine the extent of change. Natural hazards, including hurricanes, storm surge, and tornados were included in the analysis as potential drivers of short-term changes. We also examined two SLR scenarios, 0.3 and 0.6, meters, to estimate future pressures and potential freshwater wetland losses. Finally, we employed a vegetative index as a tool to predict declines in freshwater wetlands associated with potential saltwater intrusion. Our results show that mitigation banks have been effective in preserving freshwater wetlands but face dire risks from rising sea levels. These findings indicate a need to consider climate change drivers, especially SLR, in future planning and the management of these coastal mitigation banks.