Chapter

Tidal Vegetation: Spatial and temporal Dynamics

V. Thomas Parker, John C. Callaway, Lisa M. Schile, Michael C. Vasey and Ellen R. Herbert

in Ecology, Conservation, and Restoration of Tidal Marshes

Published by University of California Press

Published in print October 2012 | ISBN: 9780520274297
Published online January 2013 | e-ISBN: 9780520954014 | DOI: http://dx.doi.org/10.1525/california/9780520274297.003.0007
Tidal Vegetation: Spatial and temporal Dynamics

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San Francisco Bay and Delta tidal wetlands represent the most intact Mediterranean-climate wetlands in North America, yet only 10 percent survived the twentieth century. Wetland plant communities within the bay, as elsewhere, are structured by gradients in inundation and salinity, as well as competitive and positive interactions, resulting in a predictable pattern of tidal-freshwater, brackish, and salt-marsh systems. Inundation stress creates patterns of plant distribution within tidal wetlands, often with strong patterns of zonation. Plant-species diversity within tidal wetlands varies strongly across salinity gradients, with fewer than twenty species in bay and delta tidal salt marshes and sixty to one hundred species in tidal freshwater wetlands; productivity is also greatest in freshwater and brackish tidal wetlands.

Keywords: freshwater diversions; inundation; Mediterranean climate; productivity; salinity gradient; San Francisco Bay and Delta; species richness; tidal wetland vegetation

Chapter.  7335 words.  Illustrated.

Subjects: Animal Pathology and Diseases

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