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Estuaries and Coasts

, Volume 38, Issue 4, pp 1099–1120 | Cite as

The Great Sippewissett Salt Marsh Plots—Some History, Highlights, and Contrails from a Long-Term Study

  • Ivan ValielaEmail author
The H.T. Odum Synthesis Essay

Introduction

During the 2013 meeting of the Coastal and Estuarine Research Federation, Iris Anderson, acting on behalf of the CERF Board, invited me to write an Odum Essay, describing the long stretch of work done in the Great Sippewissett Marsh in Cape Cod, MA, reviewing findings, and recalling how the sequence of results moved the efforts forward across over 40-plus years.

In this essay, I include a brief summary of the decadal effort and results; it somewhat embarrassedly focuses on too many publications based on work done in Woods Hole, but tries to bring in at least some of the confirming and challenging results from other studies done in salt marshes elsewhere. Clearly, the efforts in the Great Sippewissett Salt Marsh represent only a part of the work of a highly active research community that has made steady progress in understanding coastal ecosystems, and salt marshes in particular. This essay honors Eugene, Howard, and William Odum, all significant contributors to estuarine...

Keywords

Salt marshes Nitrogen Watersheds Estuaries Stable isotopes Nitrogen loading models Salt marsh vegetation Experimental manipulation 

Notes

Acknowledgments

The projects conducted during the more than 40 years of work and briefly described in this essay were supported by a series of grants from government and private sources. Governmental agencies providing support included National Science Foundation’s Ecosystems, Biological Oceanography, Chemical Oceanography, Land Margin Ecosystem Research, Long-Term Research in Environmental Biology, and Research Experience for Undergraduates programs, different sections within the Environmental Protection Agency, the National Oceanic and Atmospheric Administration’s Sea Grant Programs at the Woods Hole Oceanographic Institution and Massachusetts Institute of Technology, National Estuarine Research Reserve funds and several Graduate Fellowships, the ECOHAB, and CICEET programs, and Cape Cod Water Protection Collaborative of Barnstable County). Private sources included the Pew Memorial Trust and Victoria Foundations, the Nature Conservancy, the Friendship and Frank Chapman Memorial Funds, and Sigma Xi.

I am greatly in debt to Brian Howes and Dale Goehringer-Toner and their students at the School of Marine Sciences and Technology, University of Massachusetts, Dartmouth, who steadfastly took over responsibility for maintenance of the fertilization treatments for the plots in recent years.

The work described here would have been impossible without the cooperation and permissions granted by the owners of marsh parcels in the Great Sippewissett Marsh, including Massachusetts Audubon Society, Arnold Gifford during the early years, and more recently, the Edward Hughes family.

I thank Iris Anderson for suggesting the topic of this essay, and I acknowledge the help of Blizzard Juno and other storms affecting the NE US in early 2015, which allowed days of snowbound writing that led to enough progress as to belatedly submit a response to Iris’s patient but numerous requests to complete this essay. Iris Anderson and Wayne Gardner provided many useful editorial suggestions about this text; remaining infelicities or errors are mine.

Most of all, I deeply appreciate the stimulation, advice, criticism, energy, and collegiality of the many mentors, co-PIs, post-docs, and students in the Woods Hole institutions and beyond, without which very little of the narrative of this essay could have taken place. Elizabeth Elmstrom produced the illustrations used in this essay.

References

  1. Alberti, J., M. Escapa, P. Daleo, A.M. Casariego, and O. Iribarne. 2010. Crab bioturbation and herbivory reduce pre- and post-germination success of Sarcocornia perennis in bare patches of SW Atlantic salt marshes. Marine Ecology Progress Series 400: 55–61.Google Scholar
  2. Andres, M., G.G. Gawarkiewicz, and J.M. Toole. 2013. Interannual sea level variability in the western North Atlantic: regional forcing and remote response. Geophysical Research Letters 40: 5915–5919.Google Scholar
  3. Andrewartha, H.G., and L.C. Birch. 1954. The distribution and abundance of animals. Chicago: University of Chicago Press. 782 pp.Google Scholar
  4. Baeta, A., R. Pinto, I. Valiela, P. Richard, N. Niquil, and J.C. Marques. 2009. δ15N and δ13C in the Mondego estuary food web: seasonal variation in producers and consumers. Marine Environmental Research 67: 109–116.Google Scholar
  5. Banus, M., I. Valiela, and J.M. Teal. 1974. Exports of lead from salt marshes. Marine Pollution Bulletin 5: 6–9.Google Scholar
  6. Banus, M., I. Valiela, and J.M. Teal. 1975. Lead, zinc and cadmium budgets in experimentally enriched ecosystems. Estuarine and Coastal Marine Science 3: 421–430.Google Scholar
  7. Bernhard, A.E., and A. Bollmann. 2010. Estuarine nitrifiers: new players, patterns and processes. Estuarine, Coastal and Shelf Science 88: 1–11.Google Scholar
  8. Bertness, M.D., C.P. Brisson, T.C. Coverdale, M.C. Bevil, S.M. Crotty, and E.R. Suglia. 2014. Experimental predator removal causes rapid salt marsh die-off. Ecology Letters 17: 830–835.Google Scholar
  9. Bokuniewicz, H. 1980. Groundwater seepage into Great South Bay, New York. Estuarine and Coastal Marine Science 10: 437–444.Google Scholar
  10. Botto, F., I. Valiela, O. Iribarn, P. Martinetto, and J. Albertti. 2005. Impact of borrowing crabs on C and N sources, control, and transformations in sediments and food webs of SW Atlantic estuaries. Marine Ecology Progress Series 293: 155–164.Google Scholar
  11. Bowen, J.L., and I. Valiela. 2008. Using δ15N to assess coupling between watersheds and estuaries in temperate and tropical regions. Journal of Coastal Research 24: 804–813.Google Scholar
  12. Bowen, J.L., J.M. Ramstack, S. Mazzilli, and I. Valiela. 2007. NLOAD: an interactive, web-based modeling tool for nitrogen management in estuaries. Ecological Applications 17: S17–S30.Google Scholar
  13. Bowen, J.L., B.B. Ward, H.G. Morrison, J.E. Hobbie, I. Valiela, L.A. Deegan, and M.L. Sogin. 2011. Microbial community composition in sediments resists perturbation by nutrient enrichment. ISME Journal 5: 1540–1548.Google Scholar
  14. Bowen, J.L., J.E.K. Byrnes, D. Weisman, and C. Colaneri. 2013. Functional gene pyrosequencing and network analysis: an approach to examine the response of denitrifying bacteria to increased nitrogen supply in salt marsh sediments. Frontiers in Microbiology 4: 342.Google Scholar
  15. Boyer, K.E., and J.B. Zedler. 1999. Nitrogen addition could shift plant community composition in a restored California salt marsh. Restoration Ecology 7: 74–85.Google Scholar
  16. Brawley, J.W., G. Collins, J.N. Kremer, C.H. Sham, and I. Valiela. 2000. A time-dependent model of nitrogen loading to estuaries from coastal watersheds. Journal of Environmental Quality 29: 1448–1461.Google Scholar
  17. Brenner, D., I. Valiela, C.D. Van Raalte, and E.J. Carpenter. 1976. Grazing by Talorchestia longicornis on an algal mat in a New England salt marsh. Journal of Experimental Marine Biology and Ecology 22: 161–169.Google Scholar
  18. Breteler, R.J., A.E. Giblin, J.M. Teal, and I. Valiela. 1981a. Trace enrichments in decomposing litter of Spartina alterniflora. Aquatic Botany 11: 111–120.Google Scholar
  19. Breteler, R.J., J.M. Teal, and I. Valiela. 1981b. Retention and fate of experimentally added mercury in a Massachusetts salt marsh treated with sewage sludge. Marine Environmental Research 5: 211–225.Google Scholar
  20. Breteler, R.J., I. Valiela, and J.M. Teal. 1981c. Bioavailability of mercury in several North-eastern U.S. Spartina ecosystems. Estuarine, Coastal and Shelf Science 12: 155–166.Google Scholar
  21. Brin, L.D., I. Valiela, D. Goehringer, and B. Howes. 2010. Nitrogen interception and export by experimental salt marsh plots exposed to chronic nutrient addition. Marine Ecology Progress Series 400: 3–17.Google Scholar
  22. Bromberg Gedan, K., B.R. Silliman, and M.D. Bertness. 2009. Centuries of human-driven change in salt marsh ecosystems. Annual Review of Marine Science 1: 117–141.Google Scholar
  23. Broome, S.W., W.W. Woodhouse, and E.D. Seneca. 1975. Relationship of mineral nutrients to growth of Spartina alterniflora in North Carolina. 1. Nutrient status of plants and soils in natural stands. Soil Society of America Journal 39: 295–301.Google Scholar
  24. Buchsbaum, R., and I. Valiela. 1987. Variability in the chemistry of estuarine plants and its effect on feeding by Canada geese. Oecologia 73: 146–153.Google Scholar
  25. Buchsbaum, R., I. Valiela, and J.M. Teal. 1981. Grazing by Canada geese and related aspects of the chemistry of salt marsh grass. Colonial Waterbirds 4: 126–131.Google Scholar
  26. Buchsbaum, R., I. Valiela, and T. Swain. 1984. The role of phenolic compounds and other plant constituents in feeding by Canada geese in a coastal marsh. Oecologia 63: 343–349.Google Scholar
  27. Buchsbaum, R., J.O. Wilson, and I. Valiela. 1986. Digestibility of plant constituents by Canada Geese and Atlantic Brant. Ecology 67: 386–393.Google Scholar
  28. Buchsbaum, R., I. Valiela, T. Swain, M. Dzierzeski, and S. Allen. 1991. Available and refractory nitrogen in detritus of coastal vascular plants and macroalgal. Marine Ecology Progress Series 72: 131–143.Google Scholar
  29. Burdick, D.M., R. Buchsbaum, and E. Holt. 2001. Variation in soil salinity associated with expansion of Phragmites australis in salt marshes. Environmental and Experimental Botany 46: 247–261.Google Scholar
  30. Carmichael, R.H., B. Annett, and I. Valiela. 2004. Nitrogen loading to Pleasant Bay, Cape Cod: application of models and stable isotopes to detect incipient nutrient enrichment of estuaries. Marine Pollution Bulletin 48: 137–143.Google Scholar
  31. Carpenter, E.J., C.D. Van Raalte, and I. Valiela. 1978. Nitrogen fixation by algae in a Massachusetts salt marsh. Limnology and Oceanography 23: 316–327.Google Scholar
  32. Carpenter, S.R., J.F. Kitchell, and J.R. Hodson. 1985. Cascading trophic interactions and lake productivity. Bioscience 35: 634–639.Google Scholar
  33. Castro, P., I. Valiela, and H. Freitas. 2007. Eutrophication in Portuguese estuaries evidenced by δ15N of macrophytes. Marine Ecology Progress Series 351: 43–51.Google Scholar
  34. Castro, P., I. Valiela, and H. Freitas. 2009. Sediment pool and plant content as indicators of nitrogen regimes in Portuguese estuaries. Journal of Experimental Marine Biology and Ecology 380: 1–10.Google Scholar
  35. Chapman, V.J. 1960. Salt marshes and salt deserts of the world. London: Leonard Hill Limited.Google Scholar
  36. Charles, H., and J.S. Dukes. 2009. Effects of warming and altered precipitation on plant and nutrient dynamics of a New England salt marsh. Ecological Application 19: 1758–1773.Google Scholar
  37. Cole, M.L., et al. 2004. Assessment of a δ15N isotopic method to indicated anthropogenic eutrophication in aquatic ecosystems. Journal of Environmental Quality 33: 124–132.Google Scholar
  38. Cole, M.L.K., D. Kroeger, J.W. McClelland, and I. Valiela. 2005. Macrophytes as indicators of land-derived wastewater: application of δ15N methods in aquatic systems. Water Resources Research 14(W01014): 1–9.Google Scholar
  39. Collins, G., J.N. Kremer, and I. Valiela. 2000. Assessing uncertainty in estimates of nitrogen loading to estuaries for research, planning, and risk assessment. Environmental Management 25: 635–645.Google Scholar
  40. Connell, J.H. 1961. Influence of interspecific competition and other factors on distribution of barnacle Chthamalus stellatus. Ecology 42: 710–723.Google Scholar
  41. Connor, M.S., J.M. Teal, and I. Valiela. 1982. The effect of grazing by mud snails (Ilyanassa obsoleta) on the structure and metabolism of a benthic algal community. Journal of Experimental Marine Biology and Ecology 65: 29–45.Google Scholar
  42. Corbisier, T.N., et al. 2006. Use of isotope signatures to assess the food web in a tropical shallow marine ecosystem of Southeastern Brazil. Aquatic Ecology 40: 381–390.Google Scholar
  43. Corbisier, T.N., et al. 2014. Trophic structure of benthic communities in the Cabo Frio upwelling system (southeastern Brazilian shelf): a temporal study using stable isotope analysis. Marine Ecology Progress Series 512: 23–38.Google Scholar
  44. Craft, C., et al. 2009. Forecasting the effects of accelerated sea-level on tidal marsh ecosystem services. Frontiers in Ecology and the Environment 7: 73–78.Google Scholar
  45. Crain, C.M. 2007. Shifting nutrient limitation and eutrophication effects in marsh vegetation across estuarine salinity gradients. Estuaries and Coasts 30: 26–34.Google Scholar
  46. D’Avanzo, C.D., M. Alber, and I. Valiela. 1990. Nitrogen assimilation from amorphous detritus by two coastal consumers. Estuarine, Coastal and Shelf Science 33: 203–209.Google Scholar
  47. Darby, F.A., and R.E. Turner. 2008a. Effects of eutrophication of salt marsh root and rhizome biomass accumulation. Marine Ecology Progress Series 363: 63–70.Google Scholar
  48. Darby, F.A., and R.E. Turner. 2008b. Below- and aboveground Spartina alterniflora production in a Louisiana salt marsh. Estuaries and Coasts 31: 223–231.Google Scholar
  49. Darby, F.A., and R.E. Turner. 2008c. Below- and aboveground biomass of Spartina alterniflora: response to nutrient addition in a Louisiana salt marsh. Estuaries and Coasts 31: 326–334.Google Scholar
  50. Deegan, L.A., et al. 2012. Coastal eutrophication as a driver of salt marsh loss. Nature 490: 388–392.Google Scholar
  51. Donnelly, J.P., and M.D. Bertness. 2001. Rapid shoreward encroachment of salt marsh cordgrass in response to accelerated sea-level rise. PNAS 98: 14218–14223.Google Scholar
  52. Doody, J. 2004. ‘Coastal squeeze’—an historical perspective. Journal of Coastal Conservation 10: 129–138.Google Scholar
  53. Duarte, C.M., J.J. Middelburg, and N. Caraco. 2005. Major role of marine vegetation on the oceanic carbon cycle. Biogeosciences 2: 1–8.Google Scholar
  54. Duarte, C.M., et al. 2012. Tipping elements in the Arctic marine ecosystem. Ambio 41: 44–55.Google Scholar
  55. Elmer, W.H., J.A. LaMondia, and F.L. Caruso. 2012. Association between Fusarium spp. on Spartina alterniflora and dieback sites on Connecticut and Massachusetts. Estuaries and Coasts 35: 436–444.Google Scholar
  56. Emery, N.C., P.J. Ewanchuk, and M.D. Bertness. 2001. Competition and salt-marsh plant zonation: stress tolerators may be dominant competitors. Ecology 82: 2471–2485.Google Scholar
  57. Estrada, M., I. Valiela, and J.M. Teal. 1974. Concentration and distribution of chlorophyll in fertilized plots in a Massachusetts salt marsh. Journal of Experimental Marine Biology and Ecology 14: 47–56.Google Scholar
  58. Farnsworth, E.J., and L.A. Meyerson. 2003. Comparative ecophysiology of four wetland plant species along a continuum of invasiveness. Wetlands 23: 750–762.Google Scholar
  59. Fleeger, J.W., D.S. Johnson, K.A. Galvan, and L.A. Deegan. 2008. Top-down and bottom-up control of infauna varies across the saltmarsh landscape. Journal of Experimental Marine Biology and Ecology 357: 20–34.Google Scholar
  60. Foreman, K., I. Valiela, and R. Sardá. 1995. Controls of benthic marine food webs. Scientia Marina 59: 119–128.Google Scholar
  61. Fox, S.E., M. Teichberg, Y.S. Olsen, and I. Valiela. 2009. Restructuring of benthic communities in eutrophic estuaries: lower abundance of prey leads to trophic shifts from omnivory to grazing. Marine Ecology Progress Series 380: 43–57.Google Scholar
  62. Fox, L., I. Valiela, and E.L. Kinney. 2012. Vegetation cover and elevation in long-term experimental nutrient-enrichment plots in Great Sippewissett salt marsh, Cape Cod, Massachusetts: implications for eutrophication and sea level rise. Estuaries and Coasts 35: 445–458.Google Scholar
  63. Frumhoff, P.C., et al. 2008. An integrated climate change assessment for the Northeast United States. Mitigation and Adaptation Strategies for Global Change 13: 419–423.Google Scholar
  64. Gallagher, J.L. 1975. Effects of an ammonium-nitrate pulse on growth and elemental composition of natural stands of Spartina alterniflora and Juncus roemerianus. American Journal of Botany 62: 644–648.Google Scholar
  65. Giblin, A.E., A. Bourg, I. Valiela and J.M. Teal.  1980. Uptake and cycling of heavy metals in sewage sludge in a New England salt marsh.  American Journal of Botany 67: 1059–1068.Google Scholar
  66. Giblin, A.E., I. Valiela, and J.M. Teal. 1983a. The fate of metals introduced into a New England salt marsh. Water, Air, and Soil Pollution 20: 81–98.Google Scholar
  67. Giblin, A.E., R.W. Howarth, and B.J. Peterson. 1983b. Iron and sulfur interactions in salt marsh sediments. Estuaries 6: 296.Google Scholar
  68. Giblin, A.E., G.W. Luther III, and I. Valiela. 1986. Trace metal solubility in salt marsh sediments contaminated with sewage sludge. Estuarine, Coastal and Shelf Science 23: 477–498.Google Scholar
  69. Giordano, J.C.P., M.J. Brush, and I.C. Anderson. 2011. Quantifying annual nitrogen loads to Virginia’s coastal lagoons: sources and water quality response. Estuaries and Coasts 34: 297–309.Google Scholar
  70. Giurgevich, J.R., and E.L. Dunn. 1979. Seasonal patterns of CO2 and water-vapor exchange of the tall and short height forms of Spartina alterniflora Loisel. in a Georgia salt marsh. Oecologia 43: 139–156.Google Scholar
  71. Griffin, M.P.A., and I. Valiela. 2001. δ15N isotope studies of life history and trophic position of Fundulus heteroclitus and Menidia menidia. Marine Ecology Progress Series 214: 299–305.Google Scholar
  72. Gruner, D.S., et al. 2008. A cross-system synthesis of consumer and nutrient resource control on producer biomass. Ecology Letters 11: 740–755.Google Scholar
  73. Haines, E.B. 1976. Relations between the stable carbon isotope composition of fiddler crabs, plants, and soils in a salt marsh. Limnology and Oceanography 21: 880–883.Google Scholar
  74. Haines, B.L., and E.L. Dunn. 1976. Growth and resource allocation response of Spartina alterniflora Loisel. to three levels of NH4-N, Fe and NaCl in solution culture. Botanical Gazette 137: 224–230.Google Scholar
  75. Hairston, N.G., F.E. Smith, and L.B. Slobodkin. 1960. Community structure, population control, and competition. American Naturalist 94: 421–425.Google Scholar
  76. Hall, D.J., W.E. Cooper, and E.E. Werner. 1970. Experimental approach to production dynamics and structure of freshwater animal communities. Limnology and Oceanography 15: 839–928.Google Scholar
  77. Hamersley, M.R., and B.L. Howes. 2005. Coupled nitrification-denitrification measured in situ in a Spartina alterniflora marsh with a 15NH4 + tracer. Marine Ecology Progress Series 299: 123–135.Google Scholar
  78. Holdredge, C., M.D. Bertness, E. von Wettberg, and B.R. Silliman. 2010. Nutrient enrichment enhances hidden differences in phenotype to drive a cryptic plant invasion. Oikos 119: 1176–1784.Google Scholar
  79. Howard, R.J., S.E. Travis, and B.A. Sikes. 2008. Rapid growth of a Eurasian haplotype of Phragmites australis in a brackish marsh in Louisiana, USA. Biological Invasions 10: 369–379.Google Scholar
  80. Howarth, R.W. 1984. The ecological significance of sulfur in the energy dynamics of salt-marsh and coastal marine sediments. Biogeochemistry 1: 5–27.Google Scholar
  81. Howarth, R.W., and J.M. Teal. 1980. Energy-flow in a salt marsh ecosystem: the role of reduced inorganic sulfur compounds. American Naturalist 116: 862–872.Google Scholar
  82. Howes, B.L., J.W.H. Dacey, and G.M. King. 1984. Carbon flow through oxygen and sulfate reduction pathways in salt marsh sediments. Limnology and Oceanography 29: 1037–1051.Google Scholar
  83. Howes, B.L., J.W. H. Dacey, and J.M. Teal. 1985. Annual carbon mineralization and belowground production of Spartina alterniflora in a New England salt marsh. Limnology and Oceanography 66: 595–605.Google Scholar
  84. Howes, B.L., and J.M. Teal. 1994. Oxygen loss from Spartina alterniflora and its relationship to saltmarsh oxygen balance. Oecologia 97: 431–438.Google Scholar
  85. Howes, B.L., R.W. Howarth, J.M. Teal, and I. Valiela. 1981. Oxidation reduction potentials in a salt marsh: spatial patterns and interactions with primary production. Limnology and Oceanography 26: 350–360.Google Scholar
  86. Howes, B.L., J.W.H. Dacey, and D.D. Goehringer. 1986. Factors controlling the growth form of Spartina alterniflora: feedbacks between aboveground production, sediment oxidation, nitrogen and salinity. Journal of Ecology 74: 881–898.Google Scholar
  87. Johannes, R.E. 1980. The ecological significance of the submarine discharge of groundwater. Marine Ecology Progress Series 3: 365–373.Google Scholar
  88. Jordan, T.E., and I. Valiela. 1982. A nitrogen budget of the ribbed mussel Geukensia demissa and its significance in nitrogen flow in a New England salt marsh. Limnology and Oceanography 27: 75–90.Google Scholar
  89. Kaplan, W., I. Valiela, and J.M. Teal. 1978. Denitrification in a salt marsh ecosystem. Limnology and Oceanography 24: 726–734.Google Scholar
  90. Kearns, P. J., J.H. Angell III, S.G. Feinman, J.L. Bowen. 2015. Long-term nutrient addition differentially alters community composition and diversity of genes that control nitrous oxide flux from salt marsh sediments. Estuarine, Coastal and Shelf Science 154: 39–47.Google Scholar
  91. Kiehl, K., P. Esselink, and J.P. Bakker. 1997. Nutrient limitation and plant species composition in temperate salt marshes. Oecologia 111: 325–330.Google Scholar
  92. Kiene, R.P., and P.T. Visscher. 1987. Dimethylsulfoniopropionate in anoxic salt-marsh sediments. Applied and Environmental Microbiology 53: 2426–2434.Google Scholar
  93. King, G.M., B.L. Howes, and J.W.H. Dacey. 1985. Short-term end-products of sulfate reduction in a salt marsh—formation of acid volatile sulfides, elemental sulfur, and pyrite. Geochimica et Cosmochimica Acta 49: 1561–1566.Google Scholar
  94. King, R.S., W.V. Deluca, D.F. Whigham, and P.P. Marra. 2007. Threshold effects of coastal urbanization on Phragmites australis (common reed) abundance and foliar nitrogen in Chesapeake Bay. Estuaries and Coasts 30: 469–481.Google Scholar
  95. Kinney, E.L., and I. Valiela. 2013. Changes in the δ15N in salt marsh sediments in a long-term fertilization study. Marine Ecology Progress Series 477: 41–52.Google Scholar
  96. Kirwan, M.L., and G.R. Guntenspergen. 2012. Feedbacks between inundation, root production, and shoot growth in a rapidly submerging brackish marsh. Journal of Ecology 100: 764–770.Google Scholar
  97. Kirwan, M.L., and S.M. Mudd. 2012. Response of salt marsh carbon accumulation to climate change. Nature 489: 550–553.Google Scholar
  98. Kirwan, M.L., G.R. Guntenspergen, and J.T. Morris. 2009. Latitudinal trends in Spartina alterniflora productivity and the response of coastal marshes to global change. Global Change Biology 15: 1982–1989.Google Scholar
  99. Koop-Jakobsen, K., and A.E. Giblin. 2009. Anammox in tidal marsh sediments: the role of salinity, nitrogen loading, and marsh vegetation. Estuaries and Coasts 32: 238–245.Google Scholar
  100. Koop-Jakobsen, K., and A.E. Giblin. 2010. The effect of increased nitrate loading on nitrate reduction via denitrification and DNRA in salt marsh sediments. Limnology and Oceanography 55: 789–802.Google Scholar
  101. Krebs, C.T., and I. Valiela. 1978. Effects of experimentally applied chlorinated hydrocarbons on the biomass of the fiddler crab, Uca pugnax. Estuarine and Coastal Marine Science 6: 375–386.Google Scholar
  102. Krebs, C.T., I. Valiela, G. Harvey, and J.M. Teal. 1974. Reduction of field populations of fiddler crabs by uptake of chlorinated hydrocarbons. Marine Pollution Bulletin 5: 140–142.Google Scholar
  103. Langley, J.A., T.J. Mozdzer, K.A. Shepard, S.B. Hagerty, and J.P. Megonigal. 2013. Tidal marsh plant responses to elevated CO2, nitrogen fertilization, and sea level rise. Global Change Biology 19: 1495–1503.Google Scholar
  104. Latimer, J.S., and M.A. Charpentier. 2010. Nitrogen inputs to seventy-four southern New England estuaries: application of a watershed nitrogen loading model. Estuarine, Coastal and Shelf Science 2: 125–136.Google Scholar
  105. Lee, Y.-K., W. Park, J.-K. Choi, J.-H. Ryu, and J.-S. Won. 2014. Halophyte die-off in response to anthropogenic impacts on tidal flats. Estuarine, Coastal and Shelf Science 151: 347–354.Google Scholar
  106. Levine, J.M., S.D. Hacker, C.D.G. Harley, and M.D. Bertness. 1998. Nitrogen effects on an interaction chain in a salt marsh community. Oecologia 117: 266–272.Google Scholar
  107. Luther, G.W., A.E. Giblin, and R. Varsolona. 1985. Polarographic analysis of sulfur species in marine porewaters. Limnology and Oceanography 30: 727–736.Google Scholar
  108. Luther, G.W., T.M. Church, J.R. Scudlark, et al. 1986. Inorganic and organic sulfur cycling in salt-marsh porewaters. Science 232: 746–749.Google Scholar
  109. Martinetto, P., M. Teichberg, I. Valiela, D. Montemayor, and O. Iribarne. 2011. Top-down and bottom-up regulation in a high nutrient-high herbivory coastal ecosystem. Marine Ecology Progress Series 423: 69–82.Google Scholar
  110. McClelland, J.W., and I. Valiela. 1998a. Changes in food web structure under the influence of increased anthropogenic nitrogen inputs to estuaries. Marine Ecology Progress Series 168: 259–271.Google Scholar
  111. McClelland, J.W., and I. Valiela. 1998b. Linking nitrogen in estuarine producers to land-derived sources. Limnology and Oceanography 43: 577–585.Google Scholar
  112. McClelland, J.W., I. Valiela, and R. Michener. 1997. Nitrogen-stable isotope signatures in estuarine food webs: a record of increasing urbanization in coastal watersheds. Limnology and Oceanography 42: 930–937.Google Scholar
  113. McCleod, E., et al. 2011. A blueprint for blue carbon: toward an improved understanding of the role of vegetated coastal habitats in sequestering CO2. Frontiers in Ecology and the Environment 9: 552–560.Google Scholar
  114. Meany, R., I. Valiela, and J.M. Teal. 1976. Growth, abundance and distribution of larval tabanids in experimentally fertilized plots on a Massachusetts salt marsh. Journal of Applied Ecology 13: 323–332.Google Scholar
  115. Mitwally, H.M., and J.W. Fleeger. 2013. Long-term nutrient enrichment elicits a weak density response by salt marsh fauna. Hydrobiologia 713: 97–114.Google Scholar
  116. Monahan, W.B., and N.A. Fisichelli. 2014. Climate exposure of US national parks in a new era of change. PLoS ONE 9, e101302.Google Scholar
  117. Moorhead, K.K., and M.M. Brinson. 1995. Response of wetlands to rising sea level in the lower coastal plain of North Carolina. Ecological Applications 5: 261–271.Google Scholar
  118. Mooring, M.T., A.W. Cooper, and E.D. Seneca. 1971. Seed germination response and evidence for height ecophenes in Spartina alterniflora from North Carolina. American Journal of Botany 58: 48–55.Google Scholar
  119. Morris, J.T., G.P. Shaffer, and J.A. Nyman. 2002. Response of coastal wetlands to rising sea level. Ecological Applications 83: 2869–2877.Google Scholar
  120. Morris, J.T., G.P. Shaffer, and J.A. Nyman. 2013a. Brinson review: perspectives on the influence of nutrients on the sustainability of coastal wetlands. Wetlands. doi: 10.1007/s13157-013-0480-3.Google Scholar
  121. Morris, J.T., K. Sundberg, and C.S. Hopkinson. 2013b. Salt marsh primary production and its responses to relative sea level and nutrients. Oceanography 26: 78–84.Google Scholar
  122. Mozdzer, T.J., J. Brisson, and E.L.G. Hazelton. 2013. Physiological ecology and functional traits of North American native and Eurasian introduction Phragmites australis lineages. AoB Plants 5: plt048.Google Scholar
  123. Murdoch, W. 1966. Community structure, population control, and competition—a critique. American Naturalist 100: 219–226.Google Scholar
  124. Nelson, J.L., and E.S. Zavaleta. 2012. Salt marsh as a coastal filter for the oceans: changes in function with experimental increases in nitrogen loading and sea level rise. PLoS ONE 7, e38558.Google Scholar
  125. Nicholson, A.J. 1954. An outline of the dynamics of animal populations. Australian Journal of Zoology 2: 9–65.Google Scholar
  126. Nixon, S.W., M.E.Q. Pilson, C.A. Oviatt, P. Donaghay, B. Sullivan, S. Seitzinger, D. Rudnick, and J. Frithsen. 1984. Eutrophication of a coastal marine ecosystem—an experimental study using the MERL microcosms. In Flows of energy and materials in marine ecosystems: theory and practice, ed. M.J.R. Fasham, 105–135. New York: Plenum.Google Scholar
  127. Nixon, S.W., S. Granger, B. Buckley, M. Lamont, and B. Rowell. 2004. A one hundred and seventeen year coastal water temperature record from Woods Hole, Massachusetts. Estuaries 27: 397–404.Google Scholar
  128. Noe, Z., J. Jackson, J.J. Hutchens, K. Walters, J.O. Luken, and K.S. Godwin. 2014. Effects of shoreline development on composition and physical structure of plants in a South Carolina high marsh. Estuaries and Coasts 37: 56–66.Google Scholar
  129. Olsen, Y.S., S.E. Fox, E.L. Kinney, M. Teichberg, and I. Valiela. 2010. Differences in urbanization and degree of marine influence are reflected in the δ13C and δ15N of producers and consumers in seagrass habitats of Puerto Rico. Marine Environmental Research. doi: 10.1016/j.marenvres.2009.10005.Google Scholar
  130. Olsen, Y.S., S.E. Fox, M. Teichberg, M. Otter, and I. Valiela. 2011. δ15N and δ13C reveal differences in carbon flow through estuarine benthic food webs in response to relative availability of macroalgae and eelgrass. Marine Ecology Progress Series 421: 83–96.Google Scholar
  131. Onuf, C.P., J.M. Teal, and I. Valiela. 1977. Interactions of nutrients, plant growth and herbivory in a mangrove ecosystem. Ecology 58: 514–526.Google Scholar
  132. Paine, R.T. 1966. Food web complexity and species diversity. American Naturalist 100: 65–75.Google Scholar
  133. Park, R.A., M.S. Trehan, P.W. Mausel, and R.C. Rowe. 1989. The effect of sea level rise on US coastal wetlands. In The potential effects of global climate change on the United States. App. B. Sea level rise, ed. J.B. Smith and D.A. Tripak. Washington: U. S. Environmental Protection Agency.Google Scholar
  134. Patrick, W.H., and R.D. Delaune. 1976. Nitrogen and phosphorus utilization by Spartina alterniflora in a salt marsh in Barataria Bay, Louisiana. Estuarine and Coastal Marine Science 4: 59–64.Google Scholar
  135. Peacock, E.E., et al. 2007. The 1974 spill of the Bouchard 65 oil barge: petroleum hydrocarbons persist in Winsor Cove salt marsh sediments. Marine Pollution Bulletin 54: 214–225.Google Scholar
  136. Peng, X., E. Yando, E. Hildebrand, C. Dwyer, A. Kearney, A. Waciega, I. Valiela, and A.E. Bernhard. 2013. Differential response of ammonia-oxidizing archaea and bacteria to long-term fertilization in a New England salt marsh. Frontiers in Microbiology 3: 1–11.Google Scholar
  137. Pennings, S.C., et al. 2005. Do individual plant species show predictable responses to nitrogen addition across multiple experiments? Oikos 110: 547–555.Google Scholar
  138. Pershing, A.J., et al. 2015. Evaluating trophic cascades as drivers of regime shifts in different ocean ecosystems. Philosophical Transaction of the Royal Society B 370: 20130265.Google Scholar
  139. Peterson, B.J., and R.W. Howarth. 1983. Sulfur and carbon isotopes as tracers of organic-matter flow in salt marshes. Estuaries 6: 305–325.Google Scholar
  140. Peterson, B.J., and R.W. Howarth. 1987. Sulfur, carbon, and nitrogen isotopes used to trace organic-matter flow in the salt-marsh estuaries of Sapelo Island, Georgia. Limnology and Oceanography 32: 1195–1213.Google Scholar
  141. Peterson, B.J., R.W. Howarth, and R.H. Garritt. 1986. Sulfur and carbon isotopes as tracers of salt-marsh organic-matter flow. Ecology 67: 865–874.Google Scholar
  142. Priest, B. 2011. Effects of elevation and nutrient availability on the primary production of Spartina alterniflora and the stability of southeastern coastal salt marshes relative to sea level rise. M. S. thesis, Columbia, South Carolina: University of South Carolina.Google Scholar
  143. Prinslow, T.E., I. Valiela, and J.M. Teal. 1974. Effect of detritus and ration size on growth of Fundulus heteroclitus (L.). Journal of Experimental Marine Biology and Ecology 16: 1–10.Google Scholar
  144. Ravit, B., J.G. Ehrenfeld, M.M. Häggblom, and M. Bartels. 2007. The effects of drainage and nitrogen enrichment on Phragmites australis, Spartina alterniflora, and their root-associated microbial communities. Wetlands 27: 915–927.Google Scholar
  145. Redfield, A.C. 1972. Development of a New England salt marsh. Ecological Monographs 42: 201–237.Google Scholar
  146. Reeve, M.R., G.D. Grice, and R.P. Harris. 1982. The CEPEX approach and its implications for future studies in plankton ecology. Pp. 389–398. In Marine mesocosms: biological and chemical research in experimental ecosystems, ed. G.D. Grice and M.R. Reeve. New York: Springer.Google Scholar
  147. Rietsma, C.S., I. Valiela, and A. Sylvester-Serianni. 1982. Food preferences of dominant salt marsh herbivores and detrivores. Marine Ecology 3: 179–189.Google Scholar
  148. Rietsma, C.S., I. Valiela, and R. Buchsbaum. 1988. Effects of detrital chemistry on growth and food choice in the salt marsh snail, Melampus bidentatus. Ecology 69: 261–266.Google Scholar
  149. Rietsma, C.S., R.O. Monteiro, and I. Valiela. 2011. Plant cover, herbivory, and resiliency in a Cape Cod salt marsh: responses to multi-year manipulation of nutrient supply and competition. Estuaries and Coasts 34: 198–210.Google Scholar
  150. Rogers, J., J. Harris, and I. Valiela. 1998. Interaction of nitrogen supply, sea level rise, and elevation on species form and composition of salt marsh plants. Biology Bulletin 195: 235–237.Google Scholar
  151. Ryther, J.H., and W.M. Dunstan. 1971. Nitrogen, phosphorus, and eutrophication in the coastal marine environment. Science 171: 1008–1013.Google Scholar
  152. Sallenger, A.H., K.S. Doran, and P.A. Howd. 2012. Hotspot of accelerated sea level rise on the Atlantic coast of North America. Nature Climate Change 2: 884–888.Google Scholar
  153. Saltonstall, K. 2002. Cryptic invasion by a non-native genotype of the common reed, Phragmites australis, into North America. PNAS 99: 2445–2449.Google Scholar
  154. Sardá, R., K. Foreman, and I. Valiela. 1992. Controls of benthic invertebrate populations and production of salt marsh tidal creeks: Experimental enrichment and short- and long-term effects. In Marine Eutrophication and Population Dynamics. Proc. 25th European Mar. Biol. Symp. 10:85–91, ed. Columbo G., I. Ferrari, V. U. Ceccherelli, and R. Rossi.Google Scholar
  155. Sardá, R., K. Foreman, and I. Valiela. 1994. Long-term changes of macrofaunal assemblages in experimentally enriched salt marsh tidal creeks. Biology Bulletin 187: 282–283.Google Scholar
  156. Sardá, R., K. Foreman, and I. Valiela. 1995. Macroinfauna of a southern New England salt marsh: seasonal dynamics and production. Marine Biology 121: 431–445.Google Scholar
  157. Sardá, R., I. Valiela, and K. Foreman. 1996. Decadal shift in salt marsh macroinfaunal community in response to sustained long-term experimental nutrient enrichment. Journal of Experimental Marine Biology and Ecology 205: 63–81.Google Scholar
  158. Sardá, R., K. Foreman, C.E. Werme, and I. Valiela. 1998. The impact of epifaunal predation on the structure of macroinfaunal invertebrate communities of tidal saltmarsh creeks. Estuarine, Coastal and Shelf Science 46: 657–669.Google Scholar
  159. Shea, M.L., R.S. Warren, and W.A. Niering. 1975. Biochemical and transplantation studies of the growth form of Spartina alterniflora on Connecticut salt marshes. Ecology 56: 461–466.Google Scholar
  160. Shipley, B., and D. Meziane. 2002. The balanced-growth hypothesis and the allometry of leaf and root biomass allocation. Functional Ecology 16: 326–331.Google Scholar
  161. Silliman, B.R., and M.D. Bertness. 2002. A trophic cascade regulates salt marsh primary production. Proceedings of the National Academy of Science 99: 10500–10505.Google Scholar
  162. Silliman, B.R., and M.D. Bertness. 2004. Shoreline development drives invasion of Phragmites australis and the loss of plant diversity on New England salt marshes. Conservation Biology 18: 1424–1434.Google Scholar
  163. Silvertown, J., P. Paulton, E. Johnston, G. Edwards, M. Heard, and P.M. Biss. 2006. The Park Grass Experiment 1856–2006: its contribution to ecology. Journal of Ecology 94: 801–814.Google Scholar
  164. Slobodkin, L.B., F.E. Smith, and N.G. Hairston. 1967. Regulation in terrestrial ecosystems, and the implied balance of nature. American Naturalist 101: 109–124.Google Scholar
  165. Soares, L.S.H., E.Y. Muto, J.P. Lopez, G.R.V. Clauzet, and I. Valiela. 2014. Seasonal variability of δ13C and δ15N of fish and squid in the Cabo Frio upwelling system of the southwestern Atlantic. Marine Ecology Progress Series 512: 9–21.Google Scholar
  166. Stalter, R., and W.T. Batson. 1969. Transplantation of salt marsh vegetation, Georgetown, South Carolina. Ecology 50: 1087–1089.Google Scholar
  167. Steudler, P.A., and B.J. Peterson. 1984. Contribution of gaseous sulfur from salt marshes to the global sulfur cycle. Nature 311: 455–457.Google Scholar
  168. Stevenson, M.J., and F.P. Day. 1996. Fine-root biomass distribution and production along a barrier island chronosequence. American Midland Naturalist 135: 205–217.Google Scholar
  169. Sullivan, M.J., and F.C. Daiber. 1974. Light, nitrogen, and phosphorus limitation of edaphic algae in a Delaware salt marsh. Journal of Experimental Marine Biology and Ecology 18: 79–88.Google Scholar
  170. Teal, J.M. 1962. Energy flow in the salt marsh ecosystem of Georgia. Ecology 43: 614–624.Google Scholar
  171. Teal, J.M., and J.W. Kanwisher. 1966. Gas transport in marsh grass Spartina alterniflora. Journal of Experimental Botany 17: 355–361.Google Scholar
  172. Teal, J.M., I. Valiela, and D. Berlo. 1978. Nitrogen fixation by rhizosphere and free-living bacteria and salt marsh sediments. Limnology and Oceanography 24: 126–132.Google Scholar
  173. Teal, J.M., A. Giblin, and I. Valiela. 1982. The fate of pollutants in American salt marshes. In Wetlands: ecology and management, ed. B. Gopal, R.E. Turner, R.G. Wetzel, and D.E. Whigham, 357–366. Jaipur: National Institute of Ecology.Google Scholar
  174. Teichberg, M., et al. 2010. Eutrophication and macroalgal blooms in temperate and tropical coastal waters: nutrient enrichment experiments with Ulva spp. Global Change Biology 16: 2624–2637.Google Scholar
  175. Thomas, F., A.E. Giblin, Z.G. Cardon, and S.M. Sievert. 2014. Rhizosphere heterogeneity shapes abundance and activity of sulfur-oxidizing bacteria in vegetated salt marsh sediments. Frontiers in Microbiology 5: 1–14.Google Scholar
  176. Torio, D.D., and G.L. Chmura. 2013. Assessing coastal squeeze of tidal wetlands. Journal of Coastal Research 29: 1049–1061.Google Scholar
  177. Traut, B.H. 2005. Effects of nitrogen addition and salt grass (Distichlis spicata) upon high salt marsh vegetation in northern California, USA. Estuaries 28: 286–295.Google Scholar
  178. Trowbridge, P., M.A. Wood, J.T. Underhill, and D.S. Healy. 2014. Great Bay nitrogen non-point source study. Concord: New Hampshire Department of Environmental Services. 82 pp.Google Scholar
  179. Turner, R.E., B.L. Howes, J.M. Teal, C.S. Milan, E.M. Swenson, and D.D. Goehringer-Toner. 2009. Salt marshes and eutrophication: an unsustainable outcome. Limnology and Oceanography 54: 1634–1642.Google Scholar
  180. Tyler, A.C., J.G. Lambrinos, and E.D. Grosholz. 2007. Nitrogen inputs promote the spread of an invasive marsh grass. Ecological Applications 17: 1886–1898.Google Scholar
  181. Valiela, I. 1983. Nitrogen in salt marsh ecosystems. In Nitrogen in the marine environment, ed. E.J. Carpenter and D.G. Capone, 649–678. New York: Academic.Google Scholar
  182. Valiela, I. 2006. Global coastal change. Oxford: Blackwell. 359 pp.Google Scholar
  183. Valiela, I., and M. Bartholomew. 2014. Land-sea coupling and global-driven forcing: following some of Scott Nixon’s challenges. Estuaries and Coasts. doi: 10.1007/s12237-014-9808-3.Google Scholar
  184. Valiela, I., and M.L. Cole. 2002. Comparative evidence that salt marshes and mangroves may protect seagrass meadows from land-derived nitrogen loads. Ecosystems 5: 92–102.Google Scholar
  185. Valiela, I., and J.E. Costa. 1988. Eutrophication of Buttermilk Bay, a Cape Cod coastal embayment: concentrations of nutrients and watershed nutrient budgets. Environmental Management 12: 539–553.Google Scholar
  186. Valiela, I., and C. D’Elia. 1990. Groundwater inputs to coastal waters. Special issue. Biogeochemistry 10: 328.Google Scholar
  187. Valiela, I., and S. Fox. 2008. Mechanisms of ecological control over time: evidence from coastal ecosystems. In Unity in diversity, ed. F. Valladares, A. Camacho, A. Elosequi, M. Estrada, C. Gracia, J.C. Senar, and J.M. Gili. Madrid: Ed. Rubes, Fundacion BBVA.Google Scholar
  188. Valiela, I., and C.S. Rietsma. 1984. Nitrogen, phenolic acids, and other feeding cues for salt marsh detrivores. Oecologia 63: 350–356.Google Scholar
  189. Valiela, I., and J.M. Teal. 1974. Nutrient limitation in salt marsh vegetation. In Ecology of halophytes, ed. R.J. Reimold and W.H. Queen, 547–563. New York: Academic.Google Scholar
  190. Valiela, I., and J.M. Teal. 1979. The nitrogen budget of a salt marsh ecosystem. Nature 280: 652–656.Google Scholar
  191. Valiela, I., J.M. Teal, and W. Sass. 1973. Nutrient retention in salt marsh plots experimentally fertilized with sewage sludge. Estuarine and Coastal Marine Science 1: 261–269.Google Scholar
  192. Valiela, I., J.M. Teal, and W.J. Sass. 1975a. Production and dynamics of salt marsh vegetation and effect of sewage contamination. Biomass, production and species composition. Journal of Applied Ecology 12: 973–982.Google Scholar
  193. Valiela, I., M. Banus, and J.M. Teal. 1975b. Metal retention by salt marsh sediments and the response of marsh bivalves to enrichment with metal-containing fertilizers. Environmental Pollution 7: 144–157.Google Scholar
  194. Valiela, I., J.M. Teal, and N.Y. Persson. 1976. Production and dynamics of experimentally enriched salt marsh vegetation: below ground biomass. Limnology and Oceanography 21: 245–252.Google Scholar
  195. Valiela, I., J.E. Wright, S.B. Volkmann, and J.M. Teal. 1977. Growth, production and energy transformations in the salt marsh killifish Fundulus heteroclitic (L.). Marine Biology 40: 135–144.Google Scholar
  196. Valiela, I., J.M. Teal, and W.G. Deuser. 1978a. The nature of growth forms in the salt marsh grass Spartina alterniflora. American Naturalist 112: 461–470.Google Scholar
  197. Valiela, I., J.M. Teal, S. Volkmann, D. Shafer, and E.J. Carpenter. 1978b. Nutrient and particulate fluxes in a salt marsh ecosystem: tidal exchanges and inputs by precipitation and groundwater. Limnology and Oceanography 23: 798–812.Google Scholar
  198. Valiela, I., B. Howes, R. Howarth, A. Giblin, K. Foreman, J.M. Teal, and J.E. Hobbie. 1982. The regulation of primary production and decomposition in a salt marsh ecosystem. In Wetlands: ecology and management, ed. B. Gopal, R.E. Turner, R.G. Wetzel, and D.E. Whigham, 151–168. Jaipur: National Institute of Ecology.Google Scholar
  199. Valiela, I., J. Wilson, R. Buchsbaum, C. Rietsma, D. Bryant, K. Foreman, and J. Teal. 1984. The importance of chemical composition of salt marsh litter on decay rates and feeding by detritivores. Bulletin of Marine Science 35: 261–269.Google Scholar
  200. Valiela, I., J.M. Teal, C. Cogswell, J. Hartman, S. Allen, R. Van Etten, and D. Goehringer. 1985a. Some long-term consequences of sewage contamination in salt marsh ecosystems. In Ecological considerations in wetlands treatment of municipal wastewaters, ed. P.J. Godfrey, E.R. Kaynor, S. Pelczarski, and J. Benforado, 301–316. New York: Van Nostrand Reinhold. 473 pp.Google Scholar
  201. Valiela, I., J.M. Teal, S. Volkmann, R. Van Etten, and S. Allen. 1985b. Decomposition in salt marsh ecosystems: the phases and major factors affecting disappearance of above-ground organic matter. Journal of Experimental Marine Biology and Ecology 89: 1–26.Google Scholar
  202. Valiela, I., K. Foreman, M. LaMontagne, D. Hersh, J. Costa, P. Peckol, B. DeMeo-Anderson, C. D’Avanzo, M. Babione, C.-H. Sham, J. Brawley, and K. Lajtha. 1992. Couplings of watersheds and coastal waters: sources and consequences of nutrient enrichment in Waquoit Bay, Massachusetts. Estuaries 15: 443–457.Google Scholar
  203. Valiela, I., G. Collins, J. Kremer, K. Lajtha, M. Geist, B. Seely, J. Brawley, and C.H. Sham. 1997. Nitrogen loading from coastal watersheds to receiving estuaries: new method and application. Ecological Applications 7: 358–380.Google Scholar
  204. Valiela, I., M. Geist, J. McClelland, and G. Tomasky. 2000a. Nitrogen loading from watersheds to estuaries: verification of the Waquoit Bay nitrogen loading model. Biogeochemistry 49: 277–293.Google Scholar
  205. Valiela, I., M.L. Cole, J. McClelland, J. Hauxwell, J. Cebrian, and S.B. Joye. 2000b. Role of salt marshes as part of coastal landscapes. In Concepts and controversies of tidal marsh ecology, ed. C. Weinstein and D.A. Kreeger, 23–38. Dordrecht: Kluwer Academic.Google Scholar
  206. Valiela, I., S. Mazzilli, J.L. Bowen, K.D. Kroeger, M.L. Cole, G. Tomasky, and T. Isaji. 2003. ELM, an estuarine nitrogen loading model: formulation and verification of predicted concentrations of dissolved inorganic nitrogen. Water, Air and Soil Pollution 157: 365–391.Google Scholar
  207. Valiela, I., D. Rutecki, and S. Fox. 2004. Salt marshes: biological controls of food webs in a diminishing environment. Journal of Experimental Marine Biology and Ecology 300: 131–159.Google Scholar
  208. Valiela, I., E. Kinney, J. Culbertson, E. Peacock, and S. Smith. 2009. Global losses of mangroves and salt marshes: magnitudes, causes and consequences. In Global loss of coastal habitats: rates, causes and consequences, ed. C. Duarte, 107–138. Bilbao: Fundacion BBVA.Google Scholar
  209. Valiela, I., et al. 2012. Increased rainfall drastically freshens and enriches coastal waters along the Pacific coast of Panama. Global and Planetary Change 92–93: 130–137.Google Scholar
  210. Valiela, I.C., T. Barth-Jensen, J. Crusius Stone, and M. Bartholomew. 2013a. Deforestation of coastal watersheds of Panama: nutrient retention and export to streams. Biogeochemistry 115: 299–315.Google Scholar
  211. Valiela, I., et al. 2013b. Nutrient gradients in Panamanian estuaries: effects of watershed deforestation, rainfall, upwelling, and within-estuary transformations. Marine Ecology Progress Series 482: 1–15.Google Scholar
  212. Valiela, I., et al. 2014. Watershed deforestation and down-estuary transformations alter sources, transport, and export of suspended particles in Panamanian mangrove estuaries. Ecosystems. doi: 10.1007/s10021-013-9709-5.Google Scholar
  213. Van Raalte, C.D., I. Valiela, and J.M. Teal. 1976a. Productivity of benthic algae in experimentally fertilized salt marsh plots. Limnology and Oceanography 21: 862–872.Google Scholar
  214. Van Raalte, C.D., I. Valiela, and J.M. Teal. 1976b. The effect of fertilization on the species composition of salt marsh diatoms. Water Research 10: 1–4.Google Scholar
  215. Van Zomeren, C.M., J.R. White, and R.D. DeLaune. 2011. Fate of nitrate in vegetated brackish coastal marsh. Soil Science Society of America 76: 1919–1927.Google Scholar
  216. Vasquez, E.A., E.P. Glenn, G.R. Guntenspergen, J.J. Brown, and S.G. Nelson. 2006. Salt tolerance and osmotic adjustment of Spartina alterniflora (Poaceae) and the invasive M haplotype of Phragmites australis (Poaceae) along a salinity gradient. American Journal Botany 93: 1784–1790.Google Scholar
  217. Viana, I.G., I. Valiela, P. Martinetto, R.M. Pierce, and S.E. Fox. 2015a. Isotopic studies in Pacific Panama mangrove estuaries reveal lack of effect of watershed deforestation on food webs. Marine Environmental Research 103: 95–102.Google Scholar
  218. Viana, I.G., A. Bode, M. Bartholomew, and I. Valiela. 2015b. Experimental assessment of the macroalgae Ascophyllum nodosum and Fucus vesiculosus for monitoring N sources at different time-scales using stable isotope composition. Journal of Experimental Marine Biology and Ecology 466: 24–33.Google Scholar
  219. Vince, S.W., I. Valiela, N. Backus, and J.M. Teal. 1976. Predation by the salt marsh killifish Fundulus heteroclitus (L.) in relation to prey size and habitat structure: consequences for prey distribution and abundance. Journal of Experimental Marine Biology and Ecology 23: 255–266.Google Scholar
  220. Vince, S.W., I. Valiela, and J.M. Teal. 1981. An experimental study of the structure of herbivorous insect communities in a salt marsh. Ecology 62: 1662–1678.Google Scholar
  221. Watson, E.B., et al. 2014. Nutrient enrichment and precipitation changes do not enhance resiliency of salt marshes to sea level rise in the Northeastern United States. Climate Change 125: 501–509.Google Scholar
  222. White, D.S., and B.L. Howes. 1994. Long-term 15N-nitrogen retention in the vegetated sediments of a New England salt marsh. Limnology and Oceanography 39: 1878–1892.Google Scholar
  223. White, D.S., C. D’Avanzo, I. Valiela, C. Lasta, and M. Pascual. 1986. The relationship of diet to growth and ammonia excretion in salt marsh fish. Environmental Biology of Fishes 16: 105–111.Google Scholar
  224. Whitney, D.M., A.G. Chalmers, E.B. Haines, R.B. Hanson, L.R. Pomeroy, and B. Sherr. 1981. The cycles of nitrogen and phosphorus. In The ecology of a salt marsh, ed. L.R. Pomeroy and R.G. Wiegert, 163–182. New York: Springer.Google Scholar
  225. Wigand, C., et al. 2015. Nutrient effects on belowground organic matter in a minerogenic salt marsh, North Inlet, South Carolina. Estuaries and Coasts. doi: 10.1007/s12237-014-9937-8.Google Scholar
  226. Wilbanks, E.G., et al. 2014. Microscale sulfur cycling in the phototrophic pink berry consortia of the Sippewissett salt marsh. Environmental Microbiology 16: 3398–3415.Google Scholar
  227. Wiltse, W.I., K.H. Foreman, J.M. Teal, and I. Valiela. 1984. Effects of predators and food resources on the macrobenthos of salt marsh creeks. Journal of Marine Research 42: 923–942.Google Scholar
  228. York, J.K., G. Tomasky, I. Valiela, and D.J. Repeta. 2007. Stable isotope detection of ammonium and nitrate assimilation by phytoplankton in the Waquoit Bay estuarine system. Limnology and Oceanography 52: 144–155.Google Scholar
  229. Zhang, Y., L. Wang, X.J. Xie, L.D. Huang, and Y.H. Wu. 2013. Effects of invasion of Spartina alterniflora and exogenous N deposition on N2O emissions in a coastal salt marsh. Ecological Engineering 58: 77–83.Google Scholar

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© Coastal and Estuarine Research Federation 2015

Authors and Affiliations

  1. 1.The Ecosystems CenterMarine Biological LaboratoryWoods HoleUSA

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