Ecosystem development after mangrove wetland creation : plant–soil change across a 20-year chronosequence
Osland, Michael J.
Spivak, Amanda C.
Nestlerode, Janet A.
Lessmann, Jeannine M.
Almario, Alejandro E.
Heitmuller, Paul T.
Russell, Marc J.
Krauss, Ken W.
Dantin, Darrin D.
Harvey, James E.
From, Andrew S.
Stagg, Camille L.
MetadataShow full item record
KeywordFunctional equivalency; Carbon accumulation; Succession; Facilitation; Wetland restoration; Wetland creation; Mangrove forest; Salt marsh; Tampa Bay Florida
Mangrove wetland restoration and creation efforts are increasingly proposed as mechanisms to compensate for mangrove wetland losses. However, ecosystem development and functional equivalence in restored and created mangrove wetlands are poorly understood. We compared a 20-year chronosequence of created tidal wetland sites in Tampa Bay, Florida (USA) to natural reference mangrove wetlands. Across the chronosequence, our sites represent the succession from salt marsh to mangrove forest communities. Our results identify important soil and plant structural differences between the created and natural reference wetland sites; however, they also depict a positive developmental trajectory for the created wetland sites that reflects tightly coupled plant-soil development. Because upland soils and/or dredge spoils were used to create the new mangrove habitats, the soils at younger created sites and at lower depths (10–30 cm) had higher bulk densities, higher sand content, lower soil organic matter (SOM), lower total carbon (TC), and lower total nitrogen (TN) than did natural reference wetland soils. However, in the upper soil layer (0–10 cm), SOM, TC, and TN increased with created wetland site age simultaneously with mangrove forest growth. The rate of created wetland soil C accumulation was comparable to literature values for natural mangrove wetlands. Notably, the time to equivalence for the upper soil layer of created mangrove wetlands appears to be faster than for many other wetland ecosystem types. Collectively, our findings characterize the rate and trajectory of above- and below-ground changes associated with ecosystem development in created mangrove wetlands; this is valuable information for environmental managers planning to sustain existing mangrove wetlands or mitigate for mangrove wetland losses.
This paper is not subject to U.S. copyright. The definitive version was published in Ecosystems 15 (2012): 848-866, doi:10.1007/s10021-012-9551-1.
Showing items related by title, author, creator and subject.
Rey, Jorge R.; Walton, William E.; Wolfe, Roger J.; Connelly, C. Roxanne; O'Connell, Sheila M.; Berg, Joe; Sakolsky-Hoopes, Gabrielle E.; Laderman, Aimlee D. (MDPI AG, 2012-12-11)Wetlands are valuable habitats that provide important social, economic, and ecological services such as flood control, water quality improvement, carbon sequestration, pollutant removal, and primary/secondary production ...
Testing isosource : stable isotope analysis of a tropical fishery with diverse organic matter sources Benstead, Jonathan P.; March, James G.; Fry, Brian; Ewel, Katherine C.; Pringle, Catherine M. (Ecological Society of America, 2006-02)We sampled consumers and organic matter sources (mangrove litter, freshwater swamp-forest litter, seagrasses, seagrass epiphytes, and marine particulate organic matter [MPOM]) from four estuaries on Kosrae, Federated States ...
Nutrient gradients in Panamanian estuaries : effects of watershed deforestation, rainfall, upwelling, and within-estuary transformations Valiela, Ivan; Giblin, Anne E.; Barth-Jensen, Coralie; Harris, Carolynn; Stone, Thomas A.; Fox, Sophia E.; Crusius, John (Inter-Research, 2013-05-22)To test whether deforestation of tropical forests alters coupling of watersheds, estuaries, and coastal waters, we measured nutrients in 8 watershed-estuarine systems on the Pacific coast of Panama where watershed forest ...