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| Content Provider | Springer Nature Link |
|---|---|
| Author | Walters, Keith Hutchens, John J. Koepfler, Eric T. Luken, James O. |
| Copyright Year | 2010 |
| Abstract | Anthropogenic alteration of terrestrial shorelines can have pronounced effects on marine environments at the upland-marsh boundary. Possible terrestrial development effects on several physical and biological variables of high-marsh habitats were examined along developed and undeveloped shorelines in an ocean-dominated, southeastern US estuary. Analyses of sediment characteristics suggested development of the upland boundary affected physical conditions within the high-marsh. For example, pore water salinities were greater along undeveloped shorelines during a non-drought period even after rain events. Significant floral and faunal differences also existed between shoreline treatments. Black needle rush stems were significantly taller and marsh periwinkle densities significantly greater, but eastern coffee bean snail densities were significantly reduced along developed shorelines. Benthic infaunal community abundance and composition also were significantly different between shoreline treatments with sand fly larvae, human pest precursors, either only present or present in greater densities along developed shorelines. Sediment respirometry experiments indicated significant differences in heterotrophic and autotrophic processes occurring between shoreline treatments. Greater sediment surface temperatures along developed shorelines provided one possible mechanism driving high-marsh responses to boundary alteration. The history and extent of shoreline development along with a tendency in ocean-dominated southeastern marshes to resist change likely influenced current ecological conditions within our high-marsh study areas. A greater understanding of the driving mechanisms producing localized effects on salt marshes and recognizing regional differences in marsh resistance to change will facilitate predictions of shoreline development consequences and help in proposing effective management strategies for coastal boundaries. |
| Starting Page | 309 |
| Ending Page | 324 |
| Page Count | 16 |
| File Format | |
| ISSN | 10151621 |
| Journal | Aquatic Sciences |
| Volume Number | 72 |
| Issue Number | 3 |
| e-ISSN | 14209055 |
| Language | English |
| Publisher | SP Birkhäuser Verlag Basel |
| Publisher Date | 2010-03-13 |
| Publisher Place | Basel |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Benthic respiration High-marsh Insect larvae Juncus roemerianus Shoreline development Wetland boundary Life Sciences Ecology Oceanography Marine & Freshwater Sciences Freshwater & Marine Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Aquatic Science Water Science and Technology Ecology, Evolution, Behavior and Systematics |
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