caa a22 4500 469098171 CHVBK 20180323133037.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF00317780 doi (NATIONALLICENCE)springer-10.1007/BF00317780 Flood tolerance and the distribution of Iva frutescens across New England salt marshes [Elektronische Daten] [Mark Bertness, Karen Wikler, Tom Chatkupt] Summary: Tidal flooding is widely believed to be an important determinant of marsh plant distributions but has rarely been tested in the field. In New England the marsh elder Iva frutescens often dominates the terrestrial border of salt marshes and we examined its flood tolerance and distribution patterns. Marsh elders only occur at elevations where their roots are not subject to prolonged water table flooding. Consequently they are found on the terrestrial border of marshes and at lower elevations associated with drainage ditches and locally elevated surfaces. Marsh elders transplanted to elevations lower than they normally occur died within a year with or without neighbors and greenhouse tests revealed that I. frutescens is much less tolerant of flooded soil conditions than plants found at lower marsh elevations. We also manipulated the water table level of field plots and found that increasing or decreasing water table drainage led to enhanced and diminished I. frutescens performance, respectively. Our results demonstrate the importance of water table dynamics in generating spatial patterns in marsh plant communities and provide further evidence that supports the hypothesis that the seaward distributional limits of marsh plant populations are generally dictated by physical processes. Springer-Verlag, 1992 Salt marsh ecology nationallicence Halophytic plants nationallicence Flooding nationallicence Wetland plant communities nationallicence Iva frutescens nationallicence Bertness Mark Program in Ecology and Evolutionary Biology, Brown University, 02912, Providence, RI, USA aut Wikler Karen Program in Ecology and Evolutionary Biology, Brown University, 02912, Providence, RI, USA aut Chatkupt Tom Program in Ecology and Evolutionary Biology, Brown University, 02912, Providence, RI, USA aut Oecologia Springer-Verlag 91/2(1992-08-01), 171-178 0029-8549 91:2<171 1992 91 442 https://doi.org/10.1007/BF00317780 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317780 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bertness Mark Program in Ecology and Evolutionary Biology, Brown University, 02912, Providence, RI, USA aut NATIONALLICENCE 700 1- Wikler Karen Program in Ecology and Evolutionary Biology, Brown University, 02912, Providence, RI, USA aut NATIONALLICENCE 700 1- Chatkupt Tom Program in Ecology and Evolutionary Biology, Brown University, 02912, Providence, RI, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 91/2(1992-08-01), 171-178 0029-8549 91:2<171 1992 91 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer