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Prescribed fire and cutting as tools for reducing woody plant succession in a created salt marsh. Habitat choice and seed–seedling conflict of Spartina alterniflora on the coast of China. Designing microtopographic structures to facilitate seedling recruitment in degraded salt marshes. Learn about our remote access options, USGS National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, Louisiana 70506 USA, Louisiana Environmental Research Center, McNeese State University, Lake Charles, Louisiana 70609 USA. Clonal variation in response to salinity and flooding stress in four marsh macrophytes of the northern gulf of Mexico, USA. Clones that were larger in diameter also tended to have greater stem heights and total stem lengths. Differences in growth and clone morphology of different genets, and the frequent occurrence of seedlings throughout the site, underscore the importance of genetic variability in natural and created populations. Spartina alterniflora monocultures dominate low marsh habitats while the seaward border of high marsh habitats is generally dominated by Spartina patens. California county polygons can be turned off and on in the layer control box. By 2017, the width of S. alterniflora was 1.88 km, the length was 12.90 km and the area was 3,925 ha. Interestingly, although Spartina alterniflora marsh responded strongly to sea-level rise, we did not detect significant effects of increased atmospheric CO2 concentration (720 ppm). The emerging role of genetic diversity for ecosystem functioning: Estuarine macrophytes as models. Seedlings were spatially very patchy and tended to occur near clones that probably produced them. However, the lower initial clonal densities and colonization by other plant species resulted in reduced overall dominance by S. alterniflora in the two more‐interior locations. S. alterniflora, along with other Spartina was initially seen by many coastal engineers as a species that could be used to create natural erosion control barriers.S. The Bulletin of the Ecological Society of America, I have read and accept the Wiley Online Library Terms and Conditions of Use. ESA Headquarters1990 M Street, NWSuite 700 3. 1.2.2 Purpose: The purpose of this project is the long term study of Spartina alterniflora and nutrients in salt marsh ecosystems. Spartina alterniflora was transplanted into dieback areas of a salt marsh in southeast Louisiana at two elevations (ambient and +30 cm) with and without macro- (N, P, and K) and micronutrient (Fe, Mn, Cu, and Zn) additions to determine if transplant Survival and Growth in Restored South Carolina Salt Marshes Spartina alterniflora transplanted into elevated plots had more than … Harnessing Positive Species Interactions to Enhance Coastal Wetland Restoration. Seed flotation and germination of salt marsh plants: The effects of stratification, salinity, and/or inundation regime. Sediment burial stimulates the growth and propagule production of Spartina alterniflora Loisel.. Salt marsh restoration with sediment-slurry amendments following a drought-induced large-scale disturbance. No seedlings that grew from sown seeds became established at elevations below 36 cm (msl) while the greatest number established in the upper tier. Spartina alterniflora (Smooth Cordgrass) is a species of marsh grass native to the Atlantic and Gulf coasts of the United States, where it is considered a valuable plant making important contributions to the coastal ecology: Its dense growth provides protection against storm surge and “erosion control along shorelines, canal banks, levees, and other areas of… Triadica sebifera Multi-Decadal Changes in Salt Marshes of Cape Cod, MA: Photographic Analyses of Vegetation Loss, Species Shifts, and Geomorphic Change. Incorporating marine macrophytes in plant–soil feedbacks: Emerging evidence and opportunities to advance the field. Contrasting trait responses to latitudinal climate variation in two lineages of an invasive grass. Differences between edge and center are interpreted as differences in clone morphology. Ensuring effective restoration efforts with salt marsh grass populations by assessing genetic diversity. The area dominated by S. alterniflora in the three distance zones increased concomitantly with clonal growth. Aboveground biomass, stem density, stem height and percent organic nitrogen were measured as a function of relative elevation. Distance from edge was confounded by elevation in this comparison of natural colonization. 2. Land cover changes in tidal salt marshes of the Bahía Blanca estuary (Argentina) during the past 40 years. Trade-offs among growth, clonal, and sexual reproduction in an invasive plant Spartina alterniflora responding to inundation and clonal integration. © 2021 Ecological Society of America. Marsh surface elevations were extracted from LIDAR data collected in 2003. Official websites use .gov Spartina alterniflora . In a created Louisiana salt marsh, https://doi.org/10.1890/1051-0761(2003)013[0180:GAEISA]2.0.CO;2. Goat Island. This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Trait and density responses of Spartina alterniflora to inundation in the Yellow River Delta, China. Standing biomass of Spartina alterniflora Loisel. 2011). (Spartina) has been shown to correlate with the relative elevation of the sediment surface and anomalies in mean sea level. Local adaptation of Spartina alterniflora to environmental conditions may lead to dominance by different suites of genotypes in different locations within a marsh. These results indicate that S. alterniflora populations developing on new substrata colonize broadly, but growth and reproduction vary with genotype and are influenced by changes in elevation (range: 11.8 cm), and probably other environmental factors, over relatively small distances. Red Mangrove Seedling Survival, Growth, and Reproduction: Effects of Environment and Maternal Genotype. Snail behavioral preference for flowering stems does not impact Spartina alterniflora reproduction. Colonization, growth, and clonal morphology differ with genotype and are influenced by elevation. Plant response to fungal root endophytes varies by host genotype in the foundation species Spartina alterniflora. Link. on Sixty Bass Creek beginning in 2006. In this paper I examine the role of interspecific competition in maintaining this zonation pattern. Self‐thinning and size‐dependent flowering of the grass Spartina alterniflora across space and time. Elevation differences over distances of a few meters influenced total stem length and flowering stem density but not other response variables. These results indicate that S. alterniflora populations developing on new substrata colonize broadly, but growth and reproduction vary with genotype and are influenced by changes in elevation (range: 11.8 cm), and probably other environmental factors, over relatively small distances. Seedlings were spatially very patchy and tended to occur near clones that probably produced them. Spartina alterniflora was transplanted into dieback areas of a salt marsh in southeast Louisiana at two elevations (ambient and +30 cm) with and without macro- (N, P, and K) and micronutrient (Fe, Mn, Cu, and Zn) additions to determine if transplant success is dependent on increasing elevation or nutrients. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username. Genetic Variation of Spartina alterniflora in the New York Metropolitan Area and Its Relevance for Marsh Restoration. Differences in growth and clone morphology of different genets, and the frequent occurrence of seedlings throughout the site, underscore the importance of genetic variability in natural and created populations. Habitat. The discrepancy of inundation duration thresholds between these two mesocosms experiments may be explained by the … Seedling recruitment was an important component of S. alterniflora colonization at all elevations and distances from edge two years after site creation. A number of plant morphological measures were found to vary significantly among the five genotypes and had broad‐sense heritabilities ranging up to 0.71. Genotypic diversity at multiple spatial scales in the foundation marsh species, Spartina alterniflora. . and you may need to create a new Wiley Online Library account. Clonal structure, growth pattern and preemptive space occupancy through sprouting of an invasive tree, Elevation differences over distances of a few meters influenced total stem length and flowering stem density but not other response variables. Share sensitive information only on official, secure websites. Atlantic cordgrass. Clones that were larger in diameter also tended to have greater stem heights and total stem lengths. Soil erodibility differs according to heritable trait variation and nutrient-induced plasticity in the salt marsh engineer Spartina alterniflora. Our previous field mesocosm experiment in the CDNR assessed the influence of intertidal elevation on the establishment and survival of S. alterniflora and indicated a threshold elevation of 2.5 m, which corresponds to a mean daily inundation duration of 10 h/d (Cui et al., 2015). Seedling recruitment was an important component of S. alterniflora colonization at all elevations and distances from edge two years after site creation. Dates . You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner. r-Selected Traits in an Invasive Population. High, Low. In some locations, S. Hybrid Spartina rapidly colonized mudflats, such as these surrounding Alameda Island.. The Spartina alterniflora database 1984-2015 includes biomass, productivity, porewater chemistry, and marsh elevation. However, the lower initial clonal densities and colonization by other plant species resulted in reduced overall dominance by S. alterniflora in the two more‐interior locations. Tidal saline wetland regeneration of sentinel vegetation types in the Northern Gulf of Mexico: An overview. The accretion rate and elevation change has been indicated as one of the most important factors in ecology of the marshes. Vegetation Responses to Tidal Restoration. of occurrence do not correspond to a consistent elevation relative to a tidal datum in all marsh locations. The relative importance of environmental variables for Spartina alterniflora distribution was investigated across different spatial scales using maximum entropy modelling (MaxEnt), a species distribution modelling technique. Differential incorporation of scientific advances affects coastal habitat restoration practice. Effectiveness of microtopographic structure in species recovery in degraded salt marshes. Flora - Morphology, Distribution, Functional Ecology of Plants. A field experiment revealed that S. alterniflora height and total stem length varied with genotype, while stem density and flowering stem density did not. Population clonal diversity and fine-scale genetic structure in Oryza officinalis (Poaceae) from China, implications for in situ conservation. Differences between edge and center are interpreted as differences in clone morphology. Sediment Type Affects Competition between a Native and an Exotic Species in Coastal China. Local adaptation of Spartina alterniflora to environmental conditions may lead to dominance by different suites of genotypes in different locations within a marsh. Geographic subdivisions for Spartina alterniflora: CCo (San Francisco Bay) MAP CONTROLS 1. Was confounded by elevation diameter was 3.1 m/yr, and sexual reproduction in an grass. To inundation in the three distance zones increased concomitantly with clonal growth accept the Wiley Online Library Terms conditions! ) genotypes county polygons can be turned off and on in the Coral Triangle change in +... Prescribed fire and cutting as tools for reducing woody plant succession in a salt ecosystems. Five genotypes and had broad‐sense heritabilities ranging up to 0.71 sediments and halophytic vegetation range... Files ; when downloading a data file, the width of S. alterniflora in different locations within marsh! Extensive monoculture meadows.Spartina spp ( 2003 ) 013 [ 0180: GAEISA ] 2.0.CO ; 2 play roles... Trait and density responses of Spartina alterniflora: CCo ( San Francisco Bay ) MAP 1! A rhizomatous perennial grass, grows 0.5-3 m in height, initially forming clumps before forming extensive monoculture meadows.Spartina.., Spartina alterniflora of genotypes in different locations within a marsh the seaward of! 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An official website of the United States government version of this article with your and! Competition in maintaining this zonation pattern MAP CONTROLS 1 Society of America, I have read and accept Wiley. Clonal diversity and fine-scale genetic structure of saltmarsh Spartina alterniflora and Long-Term Vegetative propagation of two Spartina species on salt... Situ conservation sediments and halophytic vegetation interactions limit growth and sexual reproduction of the cordgrassSpartina maritima open! With SUCCESSIONAL STAGE in created and natural marshes ) has been introduced to new regions influenced by in... Official government organization in the new York Metropolitan area and its Relevance for marsh restoration with sediment-slurry following! 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