Abstract
Upslope migration will be critical to the future survival and stability of tidal salt marshes in an age of accelerated sea-level rise, yet only a small number of studies have measured historic migration rates. We developed a new approach for reconstructing salt marsh migration that can be used even in situations where that migration would be undetectable by aerial photograph analysis, such as the growth of marsh plants under trees or the movement of marsh ecosystems into mowed lawns. Our approach involves identifying a wedge of salt marsh peat (overlying the pre-existing upland soil) through the presence of foraminifera and then dating that wedge using 137Cs. We demonstrate our approach by calculating migration rates (1963–2016) for two lawn-adjacent salt marshes along the Connecticut coast of Long Island Sound. Both marshes showed substantial migration over this time period, although vertical migration rates differed dramatically between the two sites, perhaps because of the differential influence of large storms. Further, we demonstrate that the presence of foraminifera (an unequivocal signal of tidal inundation) constitutes a more accurate indicator of the migration wedge than high organic content. Our relatively inexpensive approach could be used to assess migration rates at multiple sites in order to better understand the factors controlling marsh migration.
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References
Anisfeld, S.C. 2012. Biogeochemical responses to marsh restoration. In Tidal marsh restoration: a synthesis of science and management, ed. C.T. Roman and D.M. Burdick, 39–58. Washington: Island Press.
Anisfeld, S.C., M. Tobin, and G. Benoit. 1999. Sedimentation rates in flow-restricted and restored salt marshes in Long Island Sound. Estuaries 22 (2): 231–244. https://doi.org/10.2307/1352980.
Anisfeld, S.C., K.R. Cooper, and A.C. Kemp. 2016a. Upslope development of a tidal marsh as a function of upland land use. Global Change Biology. 23 (2): 755–766. https://doi.org/10.1111/gcb.13398.
Anisfeld, S.C., T.D. Hill, and D.R. Cahoon. 2016b. Elevation dynamics in a restored versus a submerging salt marsh in Long Island Sound. Estuarine, Coastal and Shelf Science 170: 145–154. https://doi.org/10.1016/j.ecss.2016.01.017.
Bricker-Urso, S., S. W. Nixon, J. K. Cochran, D. J. Hirschberg, and C. Hunt. 1989. Accretion rates and sediment accumulation in Rhode Island salt marshes. Estuaries 12 (4):300–317.
Brinson, M.M., R.R. Christian, and L.K. Blum. 1995. Multiple states in the sea-level induced transition from terrestrial forest to estuary. Estuaries 18 (4): 648–659. https://doi.org/10.2307/1352383.
Cahoon, D.R., D.C. Reed, A.S. Kolker, M.M. Brinson, J.C. Stevenson, S. Briggs, R.R. Christian, E. Reyes, C. Voss, and D. Kunz. 2009. Coastal wetland sustainability. In Coastal sensitivity to sea-level rise: a focus on the mid-Atlantic region, ed. J. Titus, K. Anderson, D.R. Cahoon, D.B. Gesch, S. Gill, B. Gutierrez, E.R. Thieler, and S. Williams. US Climate Change Science Program.
Craft, C., S. Broome, and C. Campbell. 2002. Fifteen years of vegetation and soil development after brackish-water marsh creation. Restoration Ecology 10 (2): 248–258. https://doi.org/10.1046/j.1526-100X.2002.01020.x.
Craft, C., P. Megonigal, S. Broome, J. Stevenson, R. Freese, J. Cornell, L. Zheng, and J. Sacco. 2003. The pace of ecosystem development of constructed Spartina alterniflora marshes. Ecological Applications 13 (5): 1417–1432. https://doi.org/10.1890/02-5086.
Culver, S.J., and B.P. Horton. 2005. Infaunal marsh foraminifera from the outer banks, North Carolina, USA. Journal of Foraminiferal Research 35 (2): 148–170. https://doi.org/10.2113/35.2.148.
Desantis, L.R.G., S. Bhotika, K. Williams, and F.E. Putz. 2007. Sea-level rise and drought interactions accelerate forest decline on the Gulf Coast of Florida, USA. Global Change Biology 13 (11): 2349–2360. https://doi.org/10.1111/j.1365-2486.2007.01440.x.
Dura, T., B.P. Horton, R.C. Witter, Y. Milker, K. Wang, W.T. Bridgeland, L. Brophy, M. Ewald, N.S. Khan, S.E. Engelhart, and A.R. Nelson. 2017. Microfossil measures of rapid sea-level rise: timing of response of two microfossil groups to a sudden tidal-flooding experiment in Cascadia. Geology 45 (6): 535–538. https://doi.org/10.1130/g38832.1.
Engelhart, S.E., B.P. Horton, A.R. Nelson, A.D. Hawkes, R.C. Witter, K. Wang, P.-L. Wang, and C.H. Vane. 2013. Testing the use of microfossils to reconstruct great earthquakes at Cascadia. Geology 41 (10): 1067–1070. https://doi.org/10.1130/g34544.1.
Fagherazzi, S., S.C. Anisfeld, L.K. Blum, E.V. Long, R.A. Feagin, A. Fernandes, W.S. Kearney, and K. Williams. 2019. Sea level rise and the dynamics of the marsh-upland boundary. Frontiers in Environmental Science 7. https://doi.org/10.3389/fenvs.2019.00025.
Fernandes, A., C.R. Rollinson, W.S. Kearney, M.C. Dietze, and S. Fagherazzi. 2018. Declining radial growth response of coastal forests to hurricanes and Nor’easters. Journal of Geophysical Research: Biogeosciences 123 (3): 832–849. doi. https://doi.org/10.1002/2017JG004125.
Field, C.R., T.S. Bayard, C. Gjerdrum, J.M. Hill, S. Meiman, and C.S. Elphick. 2016a. High-resolution tide projections reveal extinction threshold in response to sea-level rise. Global Change Biology: n/a-n/a. 23 (5): 2058–2070. https://doi.org/10.1111/gcb.13519.
Field, C.R., C. Gjerdrum, and C.S. Elphick. 2016b. Forest resistance to sea-level rise prevents landward migration of tidal marsh. Biological Conservation 201: 363–369. https://doi.org/10.1016/j.biocon.2016.07.035.
Gardner, L.R., B.R. Smith, and W.K. Michener. 1992. Soil evolution along a forest salt-marsh transect under a regime of slowly rising sea-level, Southeastern United-States. Geoderma 55 (1-2): 141–157. https://doi.org/10.1016/0016-7061(92)90010-5.
Horton, B.P., and R.J. Edwards. 2006. Quantifying Holocene sea-level change using intertidal foraminifera: lessons from the British Isles. Cushman Foundation for Foraminiferal Research Special Publication 40: 3–97.
Horton, B.P., Y. Milker, T. Dura, K. Wang, W.T. Bridgeland, L. Brophy, M. Ewald, N.S. Khan, S.E. Engelhart, A.R. Nelson, and R.C. Witter. 2017. Microfossil measures of rapid sea-level rise: timing of response of two microfossil groups to a sudden tidal-flooding experiment in Cascadia. Geology 45 (6): 535–538. https://doi.org/10.1130/g38832.1.
Horton, B.P., I. Shennan, S.L. Bradley, N. Cahill, M. Kirwan, R.E. Kopp, and T.A. Shaw. 2018. Predicting marsh vulnerability to sea-level rise using Holocene relative sea-level data. Nature Communications 9 (1): 2687. https://doi.org/10.1038/s41467-018-05080-0.
Hussein, A.H. 2009. Modeling of sea-level rise and deforestation in submerging coastal ultisols of Chesapeake Bay. Soil Science Society of America Journal 73 (1): 185–196. https://doi.org/10.2136/sssaj2006.0436.
Hussein, A.H., and M.C. Rabenhorst. 2001. Tidal inundation of transgressive coastal areas: pedogenesis of salinization and alkalinization. Soil Science Society of America Journal 65 (2): 536–544. https://doi.org/10.2136/sssaj2001.652536x.
Kemp, A.C., A.D. Hawkes, J.P. Donnelly, C.H. Vane, B.P. Horton, T.D. Hill, S.C. Anisfeld, A.C. Parnell, and N. Cahill. 2015. Relative sea-level change in Connecticut (USA) during the last 2200 yrs. Earth and Planetary Science Letters 428: 217–229. https://doi.org/10.1016/j.epsl.2015.07.034.
Kirwan, M.L., G.R. Guntenspergen, A. D'Alpaos, J.T. Morris, S.M. Mudd, and S. Temmerman. 2010. Limits on the adaptability of coastal marshes to rising sea level. Geophysical Research Letters 37 (23): L23401. https://doi.org/10.1029/2010gl045489.
Kosciuch, T.J., J.E. Pilarczyk, I. Hong, H.M. Fritz, B.P. Horton, A. Rarai, M.J. Harrison, and F.R. Jockley. 2018. Foraminifera reveal a shallow nearshore origin for overwash sediments deposited by Tropical Cyclone Pam in Vanuatu (South Pacific). Marine Geology 396: 171–185. https://doi.org/10.1016/j.margeo.2017.06.003.
Milker, Y., B.P. Horton, A.R. Nelson, S.E. Engelhart, and R.C. Witter. 2015. Variability of intertidal foraminiferal assemblages in a salt marsh, Oregon, USA. Marine Micropaleontology 118: 1–16. https://doi.org/10.1016/j.marmicro.2015.04.004.
Ostiguy, L.J., T.C. Sargent, B.J. Izbicki, and G.C. Bent. 2018. High-water marks from Hurricane Sandy for coastal areas of Connecticut, Rhode Island, and Massachusetts, October 2012. In U.S. Geological Survey Data Series 1094. https://doi.org/10.3133/ds1094.
Pilarczyk, J.E., B.P. Horton, R.C. Witter, C.H. Vane, C. Chagué-Goff, and J. Goff. 2012. Sedimentary and foraminiferal evidence of the 2011 Tōhoku-oki tsunami on the Sendai coastal plain, Japan. Sedimentary Geology 282: 78–89. https://doi.org/10.1016/j.sedgeo.2012.08.011.
Raabe, E., and R. Stumpf. 2015. Expansion of tidal marsh in response to sea-level rise: Gulf Coast of Florida, USA. Estuaries and Coasts 38 (1): 1–13. https://doi.org/10.1007/s12237-015-9974-y.
Rogers, K., J.J. Kelleway, N. Saintilan, J.P. Megonigal, J.B. Adams, J.R. Holmquist, M. Lu, L. Schile-Beers, A. Zawadzki, D. Mazumder, and C.D. Woodroffe. 2019. Wetland carbon storage controlled by millennial-scale variation in relative sea-level rise. Nature 567 (7746): 91–95. https://doi.org/10.1038/s41586-019-0951-7.
Roman, C.T. 2017. Salt marsh sustainability: challenges during an uncertain future. Estuaries and Coasts 40 (3): 711–716. https://doi.org/10.1007/s12237-016-0149-2.
Saffert, H., and E. Thomas. 1998. Living foraminifera and total populations in salt marsh peat cores: Kelsey Marsh (Clinton, CT) and the Great Marshes (Barnstable, MA). Marine Micropaleontology 33 (3-4): 175–202. https://doi.org/10.1016/s0377-8398(97)00035-2.
Schieder, N.W., D.C. Walters, and M.L. Kirwan. 2018. Massive upland to wetland conversion compensated for historical marsh loss in Chesapeake Bay, USA. Estuaries and Coasts 41 (4): 940–951. https://doi.org/10.1007/s12237-017-0336-9.
Schuerch, M., T. Spencer, S. Temmerman, M.L. Kirwan, C. Wolff, D. Lincke, C.J. McOwen, M.D. Pickering, R. Reef, A.T. Vafeidis, J. Hinkel, R.J. Nicholls, and S. Brown. 2018. Future response of global coastal wetlands to sea-level rise. Nature 561 (7722): 231–234. https://doi.org/10.1038/s41586-018-0476-5.
Schultz, R.A., S.C. Anisfeld, and T.D. Hill. 2016. Submergence and herbivory as divergent causes of marsh loss in Long Island Sound. Estuaries and Coasts 39 (5): 1–9. https://doi.org/10.1007/s12237-016-0080-6.
Scott, D.S., and F.S. Medioli. 1978. Vertical zonations of marsh foraminifera as accurate indicators of former sea-levels. Nature 272 (5653): 528–531. https://doi.org/10.1038/272528a0.
Smith, J.A.M. 2013. The role of Phragmites australis in mediating inland salt marsh migration in a mid-Atlantic Estuary. PLoS One 8 (5): e65091. https://doi.org/10.1371/journal.pone.0065091.
Thorne, K., G. MacDonald, G. Guntenspergen, R. Ambrose, K. Buffington, B. Dugger, C. Freeman, C. Janousek, L. Brown, J. Rosencranz, J. Holmquist, J. Smol, K. Hargan, and J. Takekawa. 2018. U.S. Pacific coastal wetland resilience and vulnerability to sea-level rise. Science Advances 4 (2): 10. https://doi.org/10.1126/sciadv.aao3270.
Wasson, K., A. Woolfolk, and C. Fresquez. 2013. Ecotones as indicators of changing environmental conditions: rapid migration of salt marsh-upland boundaries. Estuaries and Coasts 36 (3): 654–664. https://doi.org/10.1007/s12237-013-9601-8.
Williams, K., K.C. Ewel, R.P. Stumpf, F.E. Putz, and T.W. Workman. 1999. Sea-level rise and coastal forest retreat on the west coast of Florida, USA. Ecology 80 (6): 2045–2063. https://doi.org/10.1890/0012-9658(1999)080[2045:slracf]2.0.co;2.
Williams, K., M. MacDonald, and L.D.L. Sternberg. 2003. Interactions of storm, drought, and sea-level rise on coastal forest: a case study. Journal of Coastal Research 19: 1116–1121.
Wright, A.J., R.J. Edwards, and O. van de Plassche. 2011. Reassessing transfer-function performance in sea-level reconstruction based on benthic salt-marsh foraminifera from the Atlantic coast of NE North America. Marine Micropaleontology 81 (1-2): 43–62. https://doi.org/10.1016/j.marmicro.2011.07.003.
Acknowledgments
We thank Grace Reville and Mary Schoell for their assistance with lab work and Jonas Karosas for coordinating use of the gamma counter. We thank James Beschle, Supervisor of Sherwood Island State Park, and William Mattioli, Supervisor of Hammonasset Beach State Park, for their assistance and cooperation with this project. The manuscript benefitted from feedback from Charles Simenstad and two anonymous reviewers.
Funding
This work was funded by Connecticut Sea Grant (Project no. R/ES-25).
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Anisfeld, S.C., Kemp, A.C. & O’Connell, J. Salt Marsh Migration into Lawns Revealed by a Novel Sediment-Based Approach. Estuaries and Coasts 42, 1419–1429 (2019). https://doi.org/10.1007/s12237-019-00590-6
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DOI: https://doi.org/10.1007/s12237-019-00590-6