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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14635
|2 doi
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|a pubmed25n0985.xml
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|a (DE-627)NLM295543434
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|a (NLM)30932269
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Zinnert, Julie C
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Connectivity in coastal systems
|b Barrier island vegetation influences upland migration in a changing climate
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| 264 |
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|c 2019
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 11.10.2019
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| 500 |
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|a Date Revised 11.10.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2019 John Wiley & Sons Ltd.
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|a Due to their position at the land-sea interface, barrier islands are vulnerable to both oceanic and atmospheric climate change-related drivers. In response to relative sea-level rise, barrier islands tend to migrate landward via overwash processes which deposit sediment onto the backbarrier marsh, thus maintaining elevation above sea level. In this paper, we assess the importance of interior upland vegetation and sediment transport (from upland to marsh) on the movement of the marsh-upland boundary in a transgressive barrier system along the mid-Atlantic Coast. We hypothesize that recent woody expansion is altering the rate of marsh to upland conversion. Using Landsat imagery over a 32 year time period (1984-2016), we quantify transitions between land cover (bare, grassland, woody vegetation, and marsh) and the marsh-upland boundary. We find that the Virginia Barrier Islands have both gains and losses in backbarrier marsh and upland, with 19% net loss from the system during the timeframe of the study and increased variance in marsh to upland conversion. This is consistent with recent work indicating a shift toward increasing rates of landward barrier island migration. Despite a net loss of upland area, macroclimatic winter warming resulted in 41% increase in woody vegetation in protected, low-elevation areas, introducing new ecological scenarios that increase resistance to sediment movement from upland to marsh. Our analysis demonstrates how the interplay between elevation and interior island vegetative cover influences landward migration of the boundary between upland and marsh (a previously underappreciated indicator that an island is migrating), and thus, the importance of including ecological processes in the island interior into coastal modeling of barrier island migration and sediment movement across the barrier landscape
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4 |
|a Journal Article
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4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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4 |
|a Landsat
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| 650 |
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4 |
|a barrier island migration
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| 650 |
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4 |
|a coastal system
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| 650 |
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4 |
|a dune
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| 650 |
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4 |
|a macroclimate
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| 650 |
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4 |
|a sea-level rise
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| 650 |
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4 |
|a woody expansion
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| 700 |
1 |
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|a Via, Stephen M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nettleton, Benjamin P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tuley, Philip A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Moore, Laura J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Stallins, Jon Anthony
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 25(2019), 7 vom: 07. Juli, Seite 2419-2430
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
8 |
|g volume:25
|g year:2019
|g number:7
|g day:07
|g month:07
|g pages:2419-2430
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.14635
|3 Volltext
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