Vegetation community response to tidal marsh restoration of a large river estuary

Northwest Science
By: , and 



Estuaries are biologically productive and diverse ecosystems that provide ecosystem services including protection of inland areas from flooding, filtering freshwater outflows, and providing habitats for fish and wildlife. Alteration of historic habitats, including diking for agriculture, has decreased the function of many estuarine systems, and recent conservation efforts have been directed at restoring these degraded areas to reestablish their natural resource function. The Nisqually Delta in southern Puget Sound is an estuary that has been highly modified by restricting tidal flow, and recent restoration of the delta contributed to one of the largest tidal salt marsh restorations in the Pacific Northwest. We correlated the response of nine major tidal marsh species to salinities at different elevation zones. Our results indicated that wetland species richness was not related to soil pore-water salinity (R2 = 0.03), but were stratified into different elevation zones (R2 = 0.47). Thus, restoration that fosters a wide range of elevations will provide the most diverse plant habitat, and potentially, the greatest resilience to environmental change.

Study Area

Publication type Article
Publication Subtype Journal Article
Title Vegetation community response to tidal marsh restoration of a large river estuary
Series title Northwest Science
DOI 10.3955/046.089.0205
Volume 89
Issue 2
Year Published 2015
Language English
Publisher Northwest Scientific Association
Contributing office(s) Western Ecological Research Center
Description 12 p.
First page 136
Last page 147
Country United States
State Washington
Other Geospatial Nisqually Delta, Puget Sound
Online Only (Y/N) N
Additional Online Files (Y/N) N
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