Interactive effects of hydrology and salinity on oligohaline plant species productivity: Implications of relative sea-level rise

Spalding, Elizabeth A.; Hester, Mark W.

doi:10.1007/bf02700165

Cited by 109 publications

(76 citation statements)

References 66 publications

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“…If the initial dieback of aboveground vegetation reported in this study leads to successive decreases in belowground biomass, the marsh may not be able to maintain sufficient elevation to prevent excessive inundation, and marsh loss could occur (Hartman, 1988, Nyman and others, 1993, DeLaune and others, 1994, Turner and others, 2004, Spalding and Hester 2007. Conversely, if vegetation recolonization occurs quickly, the belowground component should respond positively, and the marsh may maintain sufficient elevation to avoid loss.…”

Section: Next Stepsmentioning

confidence: 79%

Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010

Kokaly¹,

Heckman²,

Holloway³

et al. 2011

Open-File Report

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Section: Next Stepsmentioning

confidence: 79%

Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010

Kokaly¹,

Heckman²,

Holloway³

et al. 2011

Open-File Report

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“…4; Hart et al 1990). Recently, others have found similar tolerances to chronic salinities, between 1 g TDS/L and 6 g TDS/L, for freshwater wetland communities in inland and coastal settings (Spalding andHester 2007, Sutter et al 2014). In Australian wetlands, salinities between 0.6-0.9 g TDS/L are predicted to reduce species richness of aquatic macrophytes by 30-50% and at 3.5 g TDS/L reductions may exceed 60% (Brock et al 2005).…”

Section: àmentioning

confidence: 87%

“…Altered hydrology may also play a role in mitigating or aggravating salinity stress, but no clear pattern has been established (Flynn et al 1995, Spalding and Hester 2007, Sharpe and Baldwin 2012. Depending on a wetland's elevation relative to mean high tide, moderate increases in inundation can either stimulate or depress rates of primary production (Morris et al 2002, Kirwan et al 2010.…”

Section: àmentioning

confidence: 99%

A global perspective on wetland salinization: ecological consequences of a growing threat to freshwater wetlands

et al. 2015

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Abstract. Salinization, a widespread threat to the structure and ecological functioning of inland and coastal wetlands, is currently occurring at an unprecedented rate and geographic scale. The causes of salinization are diverse and include alterations to freshwater flows, land-clearance, irrigation, disposal of wastewater effluent, sea level rise, storm surges, and applications of de-icing salts. Climate change and anthropogenic modifications to the hydrologic cycle are expected to further increase the extent and severity of wetland salinization. Salinization alters the fundamental physicochemical nature of the soil-water environment, increasing ionic concentrations and altering chemical equilibria and mineral solubility. Increased concentrations of solutes, especially sulfate, alter the biogeochemical cycling of major elements including carbon, nitrogen, phosphorus, sulfur, iron, and silica. The effects of salinization on wetland biogeochemistry typically include decreased inorganic nitrogen removal (with implications for water quality and climate regulation), decreased carbon storage (with implications for climate regulation and wetland accretion), and increased generation of toxic sulfides (with implications for nutrient cycling and the health/functioning of wetland biota). Indeed, increased salt and sulfide concentrations induce physiological stress in wetland biota and ultimately can result in large shifts in wetland communities and their associated ecosystem functions. The productivity and composition of freshwater species assemblages will be highly altered, and there is a high potential for the disruption of existing interspecific interactions. Although there is a wealth of information on how salinization impacts individual ecosystem components, relatively few studies have addressed the complex and often non-linear feedbacks that determine ecosystem-scale responses or considered how wetland salinization will affect landscape-level processes. Although the salinization of wetlands may be unavoidable in many cases, these systems may also prove to be a fertile testing ground for broader ecological theories including (but not limited to): investigations into alternative stable states and tipping points, trophic cascades, disturbance-recovery processes, and the role of historical events and landscape context in driving community response to disturbance.

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“…Using materials found at hardware and aquarium retailers, each tidal simulation unit was constructed for less than US$27 in approximately 20 min, thus a large number of tidal simulator units can be set up within several days, unlike other large tidal simulation systems that use expensive custom tanks or facilities and can take months to set up ( Gleason et al, 1981 ;Spaulding and Hester, 2007 ;Cohen et al, 2009 ). Each unit also only takes up 0.18 m 2 Fig.…”

Section: Discussionmentioning

confidence: 99%

Using δ¹⁵N to Assess Coupling between Watersheds and Estuaries in Temperate and Tropical Regions

Bowen¹,

Valiela²

2008

Journal of Coastal Research

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Interactive effects of hydrology and salinity on oligohaline plant species productivity: Implications of relative sea-level rise

Cited by 109 publications

References 66 publications

Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010

Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010

A global perspective on wetland salinization: ecological consequences of a growing threat to freshwater wetlands

Using δ¹⁵N to Assess Coupling between Watersheds and Estuaries in Temperate and Tropical Regions

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Interactive effects of hydrology and salinity on oligohaline plant species productivity: Implications of relative sea-level rise

Cited by 109 publications

References 66 publications

Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010

Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010

A global perspective on wetland salinization: ecological consequences of a growing threat to freshwater wetlands

Using δ15N to Assess Coupling between Watersheds and Estuaries in Temperate and Tropical Regions

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Using δ¹⁵N to Assess Coupling between Watersheds and Estuaries in Temperate and Tropical Regions