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Productivity Gradients in Mangroves

FCE researchers have found significant spatial differences in mangrove productivity; from riverine mangrove forests with productivity rates similar to tropical rain forests to low structure scrub mangroves that grow in nutrient-poor environments. Mangrove forests growth and survival are greatly influenced by the impacts and legacies of hurricanes, sea-level rise, and human impacts along coastal areas.

Barr, J.G., V. Engel, J.D. Fuentes, J.C. Zieman, T.L. O'Halloran, T.J. Smith, G. Anderson. 2010. Controls on mangrove forest-atmosphere carbon dioxide exchanges in western Everglades National Park. Journal of Geophysical Research 115: G02020.
Castaneda-Moya, E., R.R. Twilley, V.H. Rivera-Monroy, K. Zhang, S.E. Davis, M.S. Ross. 2010. Sediment and nutrient deposition associated with Hurricane Wilma in mangroves of the Florida Coastal Everglades. Estuaries and Coasts 33: 45-58.
Smith, T.J., G. Anderson, K. Balentine, G. Tiling, G.A. Ward, K. Whelan. 2009. Cumulative impacts of hurricanes on Florida mangrove ecosystems: Sediment deposition, storm surges and vegetation. Wetlands 29: 24-34.
Victor H. Rivera-Monroy Dept. of Oceanography and Coastal Sciences School of the Coast and the Environment 3209 Energy, Coast, & Environ Bldg Louisiana State University Baton Rouge, LA 70803
FCE researchers evaluate mangrove mortality at the mouth of the Shark River estuary after the passage of Hurricane Wilma in October of 2005.
Photo taken by Victor Rivera, May 2009.
Seasonal patterns in net ecosystem carbon exchange (NEE) for the mangrove forest located in the western Everglades. The NEE values were determined from flux tower measurements. The carbon content in leaf litter production is also shown. Despite their harsh habitat, mangroves remove from the atmosphere substantial amounts of carbon, with net assimilation exceeding 1000 grams of carbon per m^2 per year. We now know the environmental and physiological controls on mangrove ecosystems.



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