experimental control of Spartina angelica and Spartina x townsendii in estuarine salt marsh.

  • 0.51 MB
  • English
The Author] , [S.l
ID Numbers
Open LibraryOL16406537M

Hammond MER, The experimental control of Spartina anglica and Spartina x townsendii in estuarine salt marsh. Ulster. Hammond MER, Cooper A, Spartina anglica eradication and inter-tidal recovery in Northern Ireland estuaries. Turning the Tide: the Eradication of Invasive Species [ed. by Veitch CR, Clout MN].

Townsend's cordgrass (Spartina x townsendii) is a hybrid that originated in northern Europe (i.e. southern England and western France). It is thought that this hybrid came about when smooth cordgrass (Spartina alterniflora) was introduced to Great Britain from North America in ship ballast water.

A four month experiment using greenhouse mesocosms was conducted to analyze the effects of eutrophication, sea level rise, and precipitation changes on the salt marsh plant Spartina alterniflora.

Pots containing plants were placed in six L tanks that received seawater pumped from Narragansett Bay and were filled and drained on a semidiurnal tidal regime.

About half an acre (040 ha) of the salt marsh grass Spartina townsendii (s. l.) was cut from a Bristol Channel marsh using a small tractor modified for use on estuarine marshland.

Spartina. Spartina flower, New River Estuary.

Description experimental control of Spartina angelica and Spartina x townsendii in estuarine salt marsh. FB2

Spartina, known as cordgrass, is native to Europe and was introduced to New Zealand as an estuarine stabiliser plant.

Two species of spartina were planted within the New River Estuary and there is now hybridisation between the two species: Spartina townsendii which does not produce viable seeds, and.

A spontaneous hybrid between native and alien parents. The map in the Atlas included both this taxon and S. anglica, though S. x townsendii was separately mapped by Perring & Sell (). Attempts have been made to limit its spread, while in S.

England it. The results highlight the need to establish targeted control programmes, dependent upon the Spartina spp., the underlying site characteristics and the available budget.

Where the evidence base is limited or absent, recommendations of further experiments are presented, including a call for improved reporting of site characteristics and. Joanne X. Wong, Federica Costantini, Nicola Merloni, Lorenzo Savelli, Danny Geelen, Laura Airoldi, The widespread and overlooked replacement of Spartina maritima by non-indigenous S.

anglica and S. townsendii in north-western Adriatic saltmarshes, Biological Invasions, /s, 20, 7, (), (). Spartina anglica, known as common cordgrass, is a model of recent allopolyploid speciation (Ainouche et al. This species derived from genome doubling of the F1 hybrid S.

× townsendii of the native European S. maritima and the introduced American S. alterniflora (Gray et al. Ainouche et al.Strong and Ayres ). Liza Fox, Ivan Valiela, Erin L. Kinney, Vegetation Cover and Elevation in Long-Term Experimental Nutrient-Enrichment Plots in Great Sippewissett Salt Marsh, Cape Cod, Massachusetts: Implications for Eutrophication and Sea Level rise, Estuaries and Coasts, /sx.

Hammond, M. The experimental control of Spartina anglica and Spartina x townsendii in estuarine saltmarsh. Ph.D. Thesis. University of Ulster, Northern Ireland.

Summary: Ph.D. thesis examining the effectiveness of various Spartina control techniques and their effect on associated flora and benthic es a management stategy. 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.

The effect of plant invasion on the microorganisms of soil sediments is very important for estuary ecology. The community structures of methanogens and sulfate-reducing bacteria (SRB) as a function of Spartina alterniflora invasion in Phragmites australis-vegetated sediments of the Dongtan wetland in the Yangtze River estuary, China, were investigated using pyrosequencing and quantitative.

Regional, ecosystem-level conservation projects with significant vegetation management components require planning, coordination, and responsive management strategies to minimize negative impacts and maximize ecological benefits over time.

The California State Coastal Conservancy’s Invasive Spartina Project (ISP) offers an example of a complex, ecosystem-scale weed eradication effort. The male sterile F 1 hybrid Spartina x townsendii subsequently produced, via doubling of chromosomes, a new fertile species Spartina anglica. It quickly became apparent that Spartina townsendii, and particularly Spartina anglica, were markedly more invasive than either of the parent species.

Estuarine habitats in southern England were.

Download experimental control of Spartina angelica and Spartina x townsendii in estuarine salt marsh. FB2

Dietrich König, Spartina Townsendii an der Westküste von Schleswig-Holstein, Planta, /BF, 36,(), (). Crossref Pierre Senay, Spartina Townsendi, son extension à l'embouchure de la Seine. Salt Marsh Succession. A salt marsh is "born" by the arrival of a seed or the rafting of a plant of the cord grass Spartina alterniflora.

The grass spreads asexually by means of a subterranean rhizome system. The grass becomes dense and forms a baffle, which encourages the deposition of fine particulate sediment, including organic matter (salt.

Zone 2: Spartina alterniflora A. General Information: Salt-water Cord Grass is the dominant organism here. It is able to out-compete other species because of its ability to tolerate daily exposure to seawater, move essential oxygen to the roots through a series of channels that extend from leaf to root, and its ability to quickly occupy available space by extending underground stems to new.

The experimental control of Spartina anglica and Spartina x Townsendii in estuarine salt marsh. Article. Mark E. Hammond; Viruses may offer an alternative for biological control, but at.

Invasive dense-flowered cordgrass (Spartina densiflora) has infested an estimated 90% of salt marshes in Humboldt Bay and the adjacent Eel and Mad River ass is most abundant at low to mid-marsh elevations, where it has displaced native pickleweed. It has also been documented as spreading in the high elevation marsh, where it threatens a diverse native plant.

Official website for Spartinaan upscale women’s handbag and accessory company, featuring linen and leather handbags, accessories, jewelry and more. Inspired by colorful Daufuskie Island, South Carolina, Spartina is carried in more than 1, specialty retail and boutique shops nationwide and abroad.

Acclaimed by leading fashion industry publications, Spartina will delight your. The dominant salt marsh species, Spartina alterniflora, is known to induce facilitative and competitive effects in different plant species, and the outcomes of interactions can be affected by nutrients and flooding stress.

Clonal genotypes, which maintained their different plant architecture phenotypes throughout 31 months of a field experiment. Imazapyr: Low Impact Tool for Invasive Spartina Control in the San Francisco Estuary (Invasive Spartina Project Fact Sheet Series, Aug.

) This brochure provides a broad overview.

Details experimental control of Spartina angelica and Spartina x townsendii in estuarine salt marsh. FB2

(PDF, KB) Hand-pulling and manual excavation. Manual removal methods are. Spartina densiflora, which has proliferated through the salt marshes of Humboldt Bay and adjacent estuaries. The individual grants focused on different components of Spartina control and salt marsh restoration, including research on invasion ecology/impacts that could inform the development of new control techniques and regional control strategies.

Spartina townsendii H. et J. Groves (= Spartina alterniflora Loisel. x S. maritima (Curt.) Fernald; incl. anglica C.E. Hubbard) (hybr.) – A very locally naturalised and invasive hybridogenous species, derived from a North American and European species.

Only found in the maritime district, the number of suitable habitats being restricted to. 1 2 1 A Review of 15 Years of Spartina Management in the San Francisco Estuary Drew W. Kerr1, Ingrid B.

Hogle1, Brian S. Ort1, 2, Whitney J. Thornton1, 2 1San Francisco Estuary Invasive Spartina Project, Embarcadero Cove, Oakland, CA 2Olofson Environmental, Inc., Embarcadero Cove, Oakland, CA [email protected] ext. Spartina alterniflora, the smooth cordgrass, saltmarsh cordgrass, or salt-water cordgrass, is a perennial deciduous grass which is found in intertidal wetlands, especially estuarine salt has been reclassified as Sporobolus alterniflorus after a taxonomic revision inbut it is still common to see Spartina alterniflora and in an interdisciplinary team of experts coauthored.

Spartina x townsendii Groves & 1. Groves. The first record of this plant is from Hythe in (Groves & Groves ). Chromosome doubling in S. x townsendii formed Spartina anglica (Marchant ; Raybould et al. a), a fertile amphidiploid species. Summary of Invasiveness Top of page. 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.

alterniflora is a rhizomatous perennial grass, grows m in height, initially forming clumps before forming extensive monoculture na spp.

have a dense root/rhizome system that. Spartina, commonly known as cordgrass or cord-grass, is a genus of plants in the grass family, frequently found in coastal salt marshes.

The genus Spartina has been subsumed into the genus Sporobolus and demoted to the taxonomic status of section after a taxonomic revision inbut it is still common to see Spartina used as genus and in an interdisciplinary team of experts from all.

zonation of Spartina alterniflora and Spartina patens in a New England salt marsh. METHODS All field work was done at Rumstick Cove, Barring-ton, Rhode Island (Bertness ).

Plant zonation at the site is typical of New England marshes (Niering and WarrenNixon ). The cordgrass Spar-tina alterniflora occurs in distinct bands of tall- and.Hubbard b). Spartinil x townsendii is only found in quantity below Hythe, in Southampton Water. Elsewhere it is limited to small patches within the marsh or as a narrow fringe near the landward limit of Spartina x.

There are probably not more than 50 acres (20 ha) of Spartina x townsendii .3 The spread of Spartina can also impact the native flora and fauna of the intertidal na may displace native plants, such as Zostera marina (seagrass) at lower elevations, and salt marsh species, such as Salicornia virginica, Triglochin maritimum, Jaumea carnosa, and Fucus distichus at higher elevations (Wiggins and Binney ; Simenstad and Thom ).