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|a Impacts of past climate and sea level change on Everglades wetlands |h [electronic resource] |b Placing a century of anthropogenic change into a late-Holocene context. |
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|a [S.l.] : |b Springer, |c 2011. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a We synthesize existing evidence on the ecological history of the Florida
Everglades since its inception ∼7 ka (calibrated kiloannum) and evaluate the relative
impacts of sea level rise, climate variability, and human alteration of Everglades
hydrology on wetland plant communities. Initial freshwater peat accumulation began
between 6 and 7 ka on the platform underlying modern Florida Bay when sea level
was ∼6.2 m below its current position. By 5 ka, sawgrass and waterlily peats covered
the area bounded by Lake Okeechobee to the north and the Florida Keys to the
south. Slower rates of relative sea level rise ∼3 ka stabilized the south Florida
coastline and initiated transitions from freshwater to mangrove peats near the coast.
Hydrologic changes in freshwater marshes also are indicated ∼3 ka. During the last
∼2 ka, the Everglades wetland was affected by a series of hydrologic fluctuations
related to regional to global-scale fluctuations in climate and sea level. Pollen
evidence indicates that regional-scale droughts lasting two to four centuries occurred
∼1 ka and ∼0.4 ka, altering wetland community composition and triggering development
of characteristic Everglades habitats such as sawgrass ridges and tree islands.
Intercalation of mangrove peats with estuarine muds ∼1 ka indicates a temporary
slowing or stillstand of sea level.Although sustained droughts and Holocene sea level
rise played large roles in structuring the greater Everglades ecosystem, twentieth
century reductions in freshwater flow, compartmentalization of the wetland, and
accelerated rates of sea level rise had unprecedented impacts on oxidation and
subsidence of organic soils, changes/loss of key Everglades habitats, and altered
distribution of coastal vegetation. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Florida Everglades (Fla.). |
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|a Christopher E. Bernhardt. |
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|t Impacts of past climate and sea level change on Everglades wetlands |
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|a Florida Documents Collection. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060918/00001 |y Click here for full text |
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|3 Host material |u http://connection.ebscohost.com/c/articles/61236067/impacts-past-climate-sea-level-change-everglades-wetlands-placing-century-anthropogenic-change-late-holocene-context |y Impacts of past climate and sea level change on Everglades wetlands |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/18/00001/Willard_Bernhardt_2011_Impacts of past climate and sea level change on Everglades wetlandsthm.jpg |
