Coastal eutrophication as a driver of salt marsh loss

Nature ◽  
2012 ◽  
Vol 490 (7420) ◽  
pp. 388-392 ◽  
Author(s):  
Linda A. Deegan ◽  
David Samuel Johnson ◽  
R. Scott Warren ◽  
Bruce J. Peterson ◽  
John W. Fleeger ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Coastal Eutrophication ◽  
Marsh Loss

scholarly journals The Contribution of Mangrove Expansion to Salt Marsh Loss on the Texas Gulf Coast

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0125404 ◽  
Author(s):  
Anna R. Armitage ◽  
Wesley E. Highfield ◽  
Samuel D. Brody ◽  
Patrick Louchouarn
Keyword(s):  
Salt Marsh ◽  
Gulf Coast ◽  
Marsh Loss ◽  
Texas Gulf Coast ◽  
Mangrove Expansion

scholarly journals Wetland Loss Patterns and Inundation-Productivity Relationships Prognosticate Widespread Salt Marsh Loss for Southern New England

2016 ◽  
Vol 40 (3) ◽  
pp. 662-681 ◽  
Author(s):  
Elizabeth Burke Watson ◽  
Cathleen Wigand ◽  
Earl W. Davey ◽  
Holly M. Andrews ◽  
Joseph Bishop ◽  
...  
Keyword(s):  
Salt Marsh ◽  
New England ◽  
Wetland Loss ◽  
Marsh Loss ◽  
Southern New England

scholarly journals Burrowing crabs and physical factors hasten marsh recovery at panne edges

PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0249330
Author(s):  
Kathryn Beheshti ◽  
Charlie Endris ◽  
Peter Goodwin ◽  
Annabelle Pavlak ◽  
Kerstin Wasson
Keyword(s):  
Salt Marsh ◽  
Global Climate ◽  
Field Investigation ◽  
Physical Factors ◽  
Key Factors ◽  
Negative Effects ◽  
Central California ◽  
Marsh Loss ◽  
Negative Effect ◽  
Positive Effect

Salt marsh loss is projected to increase as sea-level rise accelerates with global climate change. Salt marsh loss occurs along both lateral creek and channel edges and in the marsh interior, when pannes expand and coalesce. Often, edge loss is attributed to erosive processes whereas dieback in the marsh interior is linked to excessive inundation or deposition of wrack, but remains poorly understood. We conducted a two-year field investigation in a central California estuary to identify key factors associated with panne contraction or expansion. Our study explored how an abundant burrowing crab, shown to have strong negative effects on marsh biomass near creek edges, affects panne dynamics. We also explored which physical panne attributes best predicted their dynamics. To our knowledge, ours is the first study of panne dynamics in a California marsh, despite how ubiquitous pannes are as a feature of marshes in the region and how often extensive marsh dieback occurs via panne expansion. Overall, we found that pannes contracted during the study period, but with variable rates of marsh recovery across pannes. Our model incorporating both physical and biological factors explained 86% of the variation in panne contraction. The model revealed a positive effect of crab activity, sediment accretion, and a composite of depth and elevation on panne contraction, and a negative effect of panne size and distance to nearest panne. The positive crab effects detected in pannes contrast with negative effects we detected near creek edges in a previous study, highlighting the context-dependence of top-down and bioturbation effects in marshes. As global change continues and the magnitude and frequency of disturbances increases, understanding the dynamics of marsh loss in the marsh interior as well as creek banks will be critical for the management of these coastal habitats.

Hydrological Barrier as a Cause of Salt Marsh Loss

2017 ◽  
Vol 77 ◽  
pp. 88-96 ◽  
Author(s):  
Thomas P. Huff ◽  
Rusty A. Feagin
Keyword(s):  
Salt Marsh ◽  
Marsh Loss

scholarly journals Burrowing crabs and physical factors hasten marsh recovery at panne edges

2021 ◽  
Author(s):  
Kathryn Beheshti ◽  
Charlie Endris ◽  
Peter Goodwin ◽  
Annabelle Pavlak ◽  
Kerstin Wasson
Keyword(s):  
Salt Marsh ◽  
Global Climate ◽  
Physical Factors ◽  
Severe Drought ◽  
Negative Effects ◽  
Central California ◽  
Marsh Loss ◽  
Negative Effect ◽  
Positive Effect ◽  
Burrowing Crab

Salt marsh loss is projected to increase as sea-level rise accelerates with global climate change. Salt marsh loss occurs along both lateral creek and channel edges and in the marsh interior, when pannes expand and coalesce. Often, edge loss is attributed to erosive processes whereas dieback in the marsh interior is linked to excessive inundation or deposition of wrack. We conducted a two-year field experiment (2016-2018) in a central California estuary, where, immediately preceding our study, marsh dieback at creek edges and panne expansion occurred during a period of severe drought and an overlapping warm water event. Our study explored how an abundant burrowing crab, shown to have strong negative effects on marsh biomass near creek edges, affects panne dynamics. We also explored which panne attributes best predicted their dynamics. Overall, we found that pannes contracted during the study period, but with variable rates of marsh recovery across pannes. Our model incorporating both physical and biological factors explained 86% of the variation in panne contraction. The model revealed a positive effect of crab activity, sediment accretion, and a composite of depth and elevation on panne contraction, and a negative effect of panne size and distance to nearest panne. The positive crab effects detected in pannes contrast with negative effects we had earlier detected near creek edges, highlighting the context-dependence of top-down and bioturbation effects in marshes. As global change continues and the magnitude and frequency of disturbances increases, understanding the dynamics of marsh loss in the marsh interior as well as creek banks will be critical for the management of these coastal habitats.

scholarly journals Salt Marsh Loss Affects Tides and the Sediment Budget in Shallow Bays

2018 ◽  
Vol 123 (10) ◽  
pp. 2647-2662 ◽  
Author(s):  
Carmine Donatelli ◽  
Neil Kamal Ganju ◽  
Xiaohe Zhang ◽  
Sergio Fagherazzi ◽  
Nicoletta Leonardi
Keyword(s):  
Salt Marsh ◽  
Sediment Budget ◽  
Marsh Loss

scholarly journals Barrier island migration dominates ecogeomorphic feedbacks and drives salt marsh loss along the Virginia Atlantic Coast, USA

Geology ◽  
2016 ◽  
Vol 45 (2) ◽  
pp. 123-126 ◽  
Author(s):  
Charles D. Deaton ◽  
Christopher J. Hein ◽  
Matthew L. Kirwan
Keyword(s):  
Salt Marsh ◽  
Atlantic Coast ◽  
Barrier Island ◽  
Marsh Loss
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