Proceedings of the Third International Conference on Invasive ...

Chapter 2: Spartina Distribution and Spread<strong>Proceedings</strong> <strong>of</strong> <strong>the</strong> <strong>Third</strong> <strong>International</strong> <strong>Conference</strong> on Invasive SpartinaFig. 2. Twenty-five-square mile South Bay Salt Pond Restoration Project which will result in large-scale restoration <strong>of</strong> wetlands from <strong>the</strong> San Mateo Bridge to<strong>the</strong> sou<strong>the</strong>rn end <strong>of</strong> SF Bay. Pound sign (#) denotes hybrid Spartina invaded creeks and channels in <strong>the</strong> area; asterisk (*) is <strong>the</strong> Eden Landing restoration site(map from http://www.southbayrestoration.org/images/map.gif).Table 1. Percentage <strong>of</strong> hybrid plants as <strong>of</strong> 2004, determined by genetic analysis, in restored tidal marshes opened to tidalaction. Question marks indicate uncertainty in opening dates and subsequent invasion by hybrid cordgrass.Marsh Year Opened Acreage % hybrid plantsCogswell 1980 250 94Oro Loma 1997 364 73Arrowhead 1998 70 100Eden Landing (*Fig. 2) 2004? 836 ??South Bay Salt Ponds ?? 15,100 ??- 126 -