Standing biomass of Spartina alterniflora Loisel. A field experiment revealed that S. alterniflora height and total stem length varied with genotype, while stem density and flowering stem density did not. An analysis of data relatingSpartina alterniflora Loisel. Genotypic diversity at multiple spatial scales in the foundation marsh species, Spartina alterniflora. Official websites use .gov Local adaptation of Spartina alterniflora to environmental conditions may lead to dominance by different suites of genotypes in different locations within a marsh. Surface Elevation Tables (SET) were used to measure changes in the elevation of the marsh surface at Goat Island high- and low-marsh plots beginning in 1996. One possible future scenario is that S. alterniflora may enhance accretion of the marsh such that the elevation rapidly rises, thereby eliminating these low elevation areas and shifting competitive dominance to S. alterniflora, much like that seen in natural elevation-dependent competitive processes between the lower S. mariqueter and the higher Scirpus tabernaemontani (Sun et al., 2003). 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. Please check your email for instructions on resetting your password. The emerging role of genetic diversity for ecosystem functioning: Estuarine macrophytes as models. Trade-offs among growth, clonal, and sexual reproduction in an invasive plant Spartina alterniflora responding to inundation and clonal integration. Genetic diversity and population genetic structure of saltmarsh Spartina alterniflora from four coastal Louisiana basins. Colonization, growth, and clonal morphology differ with genotype and are influenced by elevation. Flora - Morphology, Distribution, Functional Ecology of Plants. Spatial and temporal variations in aboveground and belowground biomass of Spartina maritima (small cordgrass) in created and natural marshes. Surface Elevation Tables (SET) were used to measure changes in the elevation of the marsh surface at Goat Island high- and low-marsh plots beginning in 1996. Spartina alterniflora monocultures dominate low marsh habitats while the seaward border of high marsh habitats is generally dominated by Spartina patens. S. alterniflora has been introduced to new regions 1996-2015 * Monthly change in elevation + SE POPULATION STRUCTURE AND INBREEDING VARY WITH SUCCESSIONAL STAGE IN CREATED SPARTINA ALTERNIFLORA MARSHES. Aboveground biomass, stem density, stem height and percent organic nitrogen were measured as a function of relative elevation. Intra-specific responses of a dominant C4 grass to altered precipitation patterns. Species richness accelerates marine ecosystem restoration in the Coral Triangle. Red Mangrove Seedling Survival, Growth, and Reproduction: Effects of Environment and Maternal Genotype. 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. Plant response to fungal root endophytes varies by host genotype in the foundation species Spartina alterniflora. The range expansion patterns of Spartina alterniflora on salt marshes in the Yangtze Estuary, China. ) or https:// means you’ve safely connected to the .gov website. An official website of the United States government. 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. 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. They are characterized by fine sediments and halophytic vegetation. 3. Land cover changes in tidal salt marshes of the Bahía Blanca estuary (Argentina) during the past 40 years. Local adaptation of Spartina alterniflora to environmental con-ditions may lead to dominance by different suites of genotypes in different locations within a marsh. This ... Spartina alterniflora Loisel. Data presented suggests that the short height form of Spartina alterniflora observed in inland areas of Louisiana Gulf Coast marshes is caused by toxic concentrations of sulfide, a result of slightly lower elevation and subsequently lower sediment redox potential than the adjacent productive streamside marsh. In a constructed marsh, we found reduced colonization in terms of density of clones with increasing distance from edge in a 200‐ha mudflat created in 1996; however, growth in diameter was not different among three 100‐m‐long zones that differed in distance from site edge. Inter-specific competition: Spartina alterniflora is replacing Spartina anglica in coastal China. 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. Habitat range and phenotypic variation in salt marsh plants. Spartina alterniflora was introduced to the Yancheng coastal intertidal zone in 1979 (Xu et al., 1989), and a continuous area of S. alterniflora has formed since 2000. 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… Genetic structure and habitat selection of the tall form Spartina alterniflora Loisel. Short- and Long-Term Vegetative Propagation of Two Spartina Species on a Salt Marsh in Southern Brazil. Population variation of invasive Spartina alterniflora can differentiate bacterial diversity in its rhizosphere. 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. number of site specific conditions such as elevation, shoreline slope, and frequency, depth and duration of flooding. The variation in the vertical distribution of this species reported among marsh … Temporal variations of S. alterniflora distribution patterns, i.e. . Site. Figure 3. The Bulletin of the Ecological Society of America, I have read and accept the Wiley Online Library Terms and Conditions of Use. Colonization, growth, and clonal morphology differ with genotype and are influenced by elevation. Goat Island. The results showed that elevation was the most important predictor for species presence at each scale. © 2021 Ecological Society of America. Use the link below to share a full-text version of this article with your friends and colleagues. A field experiment revealed that S. alterniflora height and total stem length varied with genotype, while stem density and flowering stem density did not. 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 Trait and density responses of Spartina alterniflora to inundation in the Yellow River Delta, China. Seedlings were spatially very patchy and tended to occur near clones that probably produced them.
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