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Effects of Eutrophication on Marsh Plant Community Structure in Four Sea Grant States
PIs: Steve C. Pennings* (formerly: Marine Institute, Sapelo Island, Georgia, USA) and J. Stephen Brewer (Dept of Biology, Univ of Mississippi) *currently - Dept of Biology and Biochemistry, Univ of Houston, Texas.
Support: Georgia Sea Grant College Program (R/HAB-6)
Timeframe: 3/1/98 - 2/28/00 (complete)
Vegetation responses to fertilization suggest that shifts in species dominance will occur in fertilized plots. In particular, Spartina alterniflora appears to be increasing in fertilized plots, often at the expense of co-occurring species.
Experiments were performed at the borders of S. alterniflora and Juncus roemerianus in all three states. The response (after one year of fertilization) appears similar in all three states: S. alterniflora appears to be increasing whereas Juncus roemerianus does not. This suggests that similar plant mixtures may respond similarly to fertilization in each state, despite differences in tidal regime between geographic regions.
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|This page was updated October 13, 2006|