Vegetation dynamics in rapidly declining Louisiana coastal wetlands: The role of cosmopolitan reed grass Phragmites australis
Presentation
Paper/Presentation Title | Vegetation dynamics in rapidly declining Louisiana coastal wetlands: The role of cosmopolitan reed grass Phragmites australis |
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Presentation Type | Presentation |
Authors | Birnbaum, Christina, Waryszak, Pawel and Farrer, Emily |
Year | 2017 |
Place of Publication | United States |
Web Address (URL) of Paper | https://programarchives.z20.web.core.windows.net/2017/Paper69359.html |
Web Address (URL) of Conference Proceedings | https://programarchives.z20.web.core.windows.net/2017/ |
Conference/Event | 2017 Conference of the Ecological Society of America (ESA 2017) |
Event Details | 2017 Conference of the Ecological Society of America (ESA 2017) 102nd Annual meeting of the Ecological Society of America 2017 ESA Annual Meeting Delivery In person Event Date 06 to end of 11 Aug 2017 Event Location Portland, Oregon, United States Event Venue Oregon Convention Center Event Web Address (URL) |
Abstract | Background/Question/Methods Results/Conclusions Preliminary results suggest that total mean species richness is higher in freshwater as compared to intermediate and brackish wetlands and lowest in saline wetlands. P. australis was most likely to invade the open intermediate communities. In intermediate wetlands, P. australis mean percent cover per plot was 27.4% (27% natives) compared to 8.8% (66.6 % natives) in freshwater, 7.1 % (66.4 % natives) and 2.7% ( 65.1 % natives) in brackish and saline, respectively, suggesting that P. australis is more abundant in intermediate wetlands. Soil organic matter decreased across the salinity gradient. Organic matter (-0.03, p < 0.0001), soil pH (-0.17, p < 0.0001) and salinity (-0.12, p < 0.0001) were negatively associated with P. australis presence across all wetland types. These results suggest that P. australis may reduce native species richness only in specific wetland niches along the coastal Louisiana with intermediate wetlands being more likely invaded by P. australis. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 410202. Biosecurity science and invasive species ecology |
Public Notes | There are no files associated with this item. |
Byline Affiliations | Tulane University, United States |
Murdoch University |
https://research.usq.edu.au/item/z9700/vegetation-dynamics-in-rapidly-declining-louisiana-coastal-wetlands-the-role-of-cosmopolitan-reed-grass-phragmites-australis
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