Thoughts, ideas, stories, presses, prezzies . . .

Archive for the ‘Presentations’ Category

My #ESA2018 talk on Louisiana wetlands

Climate change and resulting sea-level rise may force shifts in wetland plant communities through modification of flooding and salinity regimes. To understand how these changes affect plant communities in Louisiana wetland ecosystems we used big data set availed by Coastwide Reference Monitoring System (CRMS) that monitored vegetation and environmental changes over the last decade. We examined the changes in plant communities in relation to salinity and water level gradient, that is across saline, brackish, intermediate and freshwater ecosystems.

CanoeWilliCarolyn

The initial focus of this study was Phragmites australis which is widely distributed¬† along the Gulf Coast of Mexico (and the core study organism of Farrer Lab). Although P. australis is widespread it was not present in all ecosystems found on Louisiana coast and we decided to broaden our focus and incorporate all alien plants. We used path analysis approach, with “lavaan” R-package, to understand the direct effects of climate change on alien plant and their indirect effects on native plant cover via alien invasions.

ESA2018_Pawel_Waryszak_New_Orleans_04aug2018_IMAGE2

Come to Invasion: Invasibility, Stability, And Diversity Session on Wed, Aug 08 at 11:10 am to see results of my work.

COS 64: Invasion: Invasibility, Stability, And Diversity
Date: Wednesday, August 8, 2018 (#73330)
Session Time: 8:00 AM – 11:30 AM
Presentation Time: 11:10 AM
Location: New Orleans Ernest N. Morial Convention Center 335-336

As we broaden the focus we also changed the title:

Old Title: Extreme salinity fluctuations and invasion by Phragmites australis in wetland ecosystems.
New Title: Direct and indirect effects of climate change on plant communities (alien & native).

You also might be interested in what Christina Birnbaum, our team member, is presenting in the same session at 9:20 am.