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
1997 ◽  
Vol 75 (1) ◽  
pp. 77-85 ◽  
Author(s):  
David W. Martin ◽  
Donald R. Young

A field and laboratory study examined the hypothesis that the small-scale distribution pattern of Juniperus virginiana on barrier islands is related to salinity patterns and plant responses to salinity. Temporal (May – October) and spatial variability in ground water availability, ground water salinity, and total soil chlorides were quantified across a Virginia barrier island. Groundwater depth and salinity increased throughout the summer; microtopographic position and location on the island also affected soil salinities. Highest salinities occurred near the ocean side beach and bay side marsh, as well as in low lying swales that flood during extreme high tides or storms. Median rooting zone chloride level for J. virginiana was 54 μg/g. In contrast, laboratory germination and growth studies indicated that J. virginiana was significantly affected only at high salinity levels (1000 and 1400 μg/g), suggesting that salinity is not the only factor regulating small-scale distribution patterns. The broad tolerance to salinity may account for the abundance of J. virginiana in coastal environments. Key words: barrier island, eastern red cedar, Juniperus virginiana, salinity response, water relations.


1997 ◽  
Vol 3 (1) ◽  
pp. 9-18 ◽  
Author(s):  
H. J. van Wijnen ◽  
J. P. Bakker ◽  
Y. de Vries

Author(s):  
Stephanie Smallegan ◽  
Evan Mazur

The numerical model XBeach is used to simulate hydrodynamics and morphological change of Bay Head, NJ, which is located on a developed barrier island. Bay Head is fronted with a seawall buried beneath its dunes, and the seawall has been shown to mitigate damage due to storm surge and waves during Hurricane Sandy (2012). The objective of this study is to re-evaluate the effectiveness of the seawall in mitigating damage from a synthetic storm and sea level rise, and refine an adaptation pathway previously created for Bay Head. Utilizing the wave and surge data generated from the North Atlantic Coast Comprehensive Study, synthetic Storm 391 is simulated using XBeach. Model results show the seawall is overtopped by storm surge and waves, causing overwash and reducing dune heights. As sea levels rise, the backbarrier region of the barrier island is severely eroded and the seawall acts as a barrier preventing elevated bay water levels from freely flowing across the island and into the ocean, exacerbating sediment transport on the backbarrier. To fully evaluate the capabilities and limitations of the seawall in mitigating storm damage, additional synthetic storms need to be simulated and the results re-evaluated. This will, in turn, lead to a comprehensive, more robust adaptation pathway for Bay Head.


PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0125404 ◽  
Author(s):  
Anna R. Armitage ◽  
Wesley E. Highfield ◽  
Samuel D. Brody ◽  
Patrick Louchouarn

1986 ◽  
Vol 94 (6) ◽  
pp. 902-906 ◽  
Author(s):  
R. Craig Kochel ◽  
Robert Dolan

2021 ◽  
pp. 1-20
Author(s):  
Jennifer L. Britton ◽  
Christian Hunold

Abstract This multispecies ethnography investigates how free-roaming ponies and humans participate in the production of “pony wildness” on Assateague Island, a barrier island located off the U.S. mid-Atlantic coast. The bordering practices of ponies intersect with the bordering practices of people to generate a relational conception of pony wildness that incorporates in people-pony relations a desire for intimacy with respect for autonomy, in a multifunctional landscape managed both as wilderness and as a beach tourism destination. This notion of pony wildness includes nonhuman charisma, fluidity, and managing human visitors. We conclude by discussing how the fluidity of pony wildness can help us think more imaginatively about other contexts in which communities of free-roaming nonhuman animals share space with human communities.


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