Species Composition, Standing Stock, and Net Primary Production of a Salt Marsh Community in Mississippi

Gabriel, Benjamin C.; Cruz, Armando A. de la

doi:10.2307/1351264

Cited by 34 publications

(18 citation statements)

References 3 publications

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“…The floristic structure of this marsh was initially described by Gabriel and de Ia Cruz (1974). The floristic structure of this marsh was initially described by Gabriel and de Ia Cruz (1974).…”

Section: Methodsmentioning

confidence: 99%

Energy Flow and Grazing Behavior of Conocephaline Grasshoppers in a Juncus Roemerianus Marsh

Parson¹,

Cruz²

1980

Ecology

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At least three species of conocephaline grasshoppers (Tettigoniidae) form the major grazing herbivores on the leaves of the marsh black needlerush Juncus roemerianus Scheele. They ingested 105 kJ/m 2 of the 31.62 MJ/m 2 net annual aboveground production of Juncus. Assimilation of ingested Juncus tissue was 60.7 kJ · m-2 • yr-' and production of new tissue by the grasshoppers was 9.6 kJ · m-2 • yr-1 , which represents 0.03% of the net annual primary production. A secondary effect of grazing was manifested by the premature death of portions of the Juncus leaf distal to the grazed area. Subsequent mechanical breakage resulted in early deposition of broken-off leaf tips into the detrital mat on the marsh. This represented a maximum input into the decomposer trophic level of 246 kJ · m-2 • yr-' prior to the death and deposition of the entire Juncus leaf.The addition of Juncus to the diet of the conocephaline post-nymphal and adult stages is discussed in the light of the hypothesis that C 4 plants are nutritionally inferior to C 3 plants, based on comparisons of amino acid concentrations within different parts of the Juncus leaf and in comparison with Spartina cynosuroides.

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Section: Methodsmentioning

confidence: 99%

Energy Flow and Grazing Behavior of Conocephaline Grasshoppers in a Juncus Roemerianus Marsh

Parson¹,

Cruz²

1980

Ecology

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“…Along both the Atlantic and Gulf coasts of the United States, low marshes are characterized by different ecophenotypes (growth forms) of the smooth cordgrass 5 Spartina alterniflora (Miller and Egler, 1950;Kurz and Wagner, 1957;Gould and Morgan, 1962;Adams, 1963;Mooring et aI., 1971;Kerwin and Pedigo, 1971;Redfield, 1972;Nixon and Oviatt, 1973;Gabriel and de la Cruz, 1974;Kirby and Gosselink, 1976;Reimold, 1977). Growth forms of this species are tallest and most luxuriant along the edge of tidal creeks ( Figure 8; Valiela and Teal, 1974); the stems become progressively shorter toward the high marsh (Figures 1, 3, and 5).…”

Section: Characteristic Plantsmentioning

confidence: 99%

Coastal Salt Marshes

Frey¹,

Basan²

1978

Coastal Sedimentary Environments

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“…No pronounced seasonal cycles in standing crop were found for Juncus roemerianus in North Carolina, although tagging suggested that live culms turned over about twice a year (Williams & Murdoch 1972). The same species showed a seasonal cycle in Mississippi but was observed to be growing all-year-round (Gabriel & de la Cruz 1974). In Florida, Cladium jamaicense showed little variation in standing crop, plant density and the concentrations of most nutrients (Steward & Ornes 1975).…”

Section: Seasonal Changes In Standing Cropmentioning

confidence: 97%

“…1976Valielaera/. 1976Ranwell 1967Wallentinus 1973Tyler 1971Tyler 1971Gabriel & de la Cruz 1974WiUiams & Murdoch 1972Boyd & Hess 1970Kvet 1975Mason & Bryant 1975Mason & Bryant 1975Bernard 1974Bernard 1974Bernard & McDonald 1974 *a = above-ground production; b = below-ground production Standing crop measurements oiJuncus kraussii do not indicate a regular turnover of biomass. Seasonal differences sometimes did not exceed variation encountered in a particular month.…”

Section: Net Primary Productionmentioning

confidence: 99%

Productivity and nutrient content of Juncus kraussii in an estuarine marsh in south‐western Australia

Congdon

McComb

1980

Australian Journal of Ecology

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Juncus kraussii, which is the dominant emergent macrophyte in the marshes of the Blackwood River Estuary, has an estimated net aboveground production there of 0.3 to 1.3 kg dry weight m~^ yr~'. A high standing crop of live culms is present throughout the year and dead material generally exceeds live. New culms are produced throughout the year, but especially during the warm season. Growth and senescence of culms also occurs throughout the year although there is evidence for increased growth in the warm season.Concentrations of nitrogen and phosphorus are given on a per g dry weight and per m^ basis. Some 60% of the nitrogen and 50% of the phosphorus remain in the dead culm material, the remainder being retranslocated. Sodium and, especially, potassium are readily retranslocated during senescence, but calcium and magnesium are much less mobile.

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Species Composition, Standing Stock, and Net Primary Production of a Salt Marsh Community in Mississippi

Cited by 34 publications

References 3 publications

Energy Flow and Grazing Behavior of Conocephaline Grasshoppers in a Juncus Roemerianus Marsh

Energy Flow and Grazing Behavior of Conocephaline Grasshoppers in a Juncus Roemerianus Marsh

Coastal Salt Marshes

Productivity and nutrient content of Juncus kraussii in an estuarine marsh in south‐western Australia

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