Abstract
An experimental investigation of drift macroalgal accumulation in seagrass beds was conducted to determine if the relationship between passively dispersed plant structure and the spatial arrangement of rooted macrophytes differed when examined across two spatial scales. Experiments were performed from December 1992 to April 1993 at four different sites in Tampa Bay, Florida, utilizing artificial seagrass units (ASUs) of uniform shoot length and density but with different areal dimensions [1 m2 (S) versus 4 m2 (L)]. Drift macroalgae were also collected from 1 m×1 m plots of natural seagrass at each of the experimental sites from November 1990 to May 1992 to determine the relationship between macroalgal abundance and structural characteristics of natural seagrass. Disproportionately higher amounts of macroalgae were captured in L compared to S plots suggesting that macroalgal accumulation does not scale up directly with the areal dimensions of ASU patches. Higher amounts of algae recovered in L plots is in accordance with patterns expected if algae accumulate in zones of attenuated water flow. Neither seagrass shoot density nor blade length could adequately describe the patterns of algal accumulation. These combined results suggest that explanations for trapping/retention of passively dispersed particles should extend beyond traditional measures of vegetation complexity.
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References
Anderson VL, McLean RA (1974) Design of experiments: a realistic approach. Dekker, New York
Bell JD, Westoby M (1986) Importance of local changes in leaf height and density to fish and decapods associated with seagrasses. J Exp Mar Biol Ecol 104:249–274
Bell JD, Steffe AS, Westoby M (1985) Artificial seagrass: how useful is it for field experiments on fish and macroinvertebrates? J Exp Mar Biol Ecol 90:171–177
Bell JD, Steffe AS, Westoby M (1988) Location of seagrass beds in estuaries: effects on associated fish and decapods. J Exp Mar Biol Ecol 122:127–146
Bell SS, Hicks GRF (1990) Marine landscapes and faunal recruitment: a field test with seagrasses and copepods. Mar Ecol Prog Ser 73:61–68
Bell SS, Hall MO, Fonseca MS (1995) Evaluation of faunal and floral properties of seagrass beds in high and low energy regimes: a geographic comparison. In: Dyer KR, D'Elia CF (eds) Changes in fluxes in estuaries: implications from science to management. Olsen and Olsen Press, Fredensborg, Denmark (in press)
Butman CA (1987) Larval settlement of soft-sediment invertebrates: the spatial scales of pattern explained by active habitat selection and the emerging role of hydrodynamical processes. Oceanogr Mar Biol Annu Rev 25:113–165
Fonseca MS, Fisher JS, Zieman JC, Thayer GW (1982) Influence of the seagrass, Zostera marina L., on current flow. Estuar Coast Shelf Sci 15:351–364
Gascon C, Travis J (1992) Does the spatial scale of experimentation matter? A test with tadpoles and dragonflies. Ecology 73:2237–2243
Gray CA (1991) Demographic patterns of the palaemonid prawn Macrobrachium intermedium in southeastern Australia: spatial heterogeneity and the effects of species of seagrass. Mar Ecol Prog Ser 75:239–249
Gutzwiller KJ, Anderson SA (1992) Interception of moving organisms: influence of patch shape, size, and orientation on community structure. Landscape Ecol 6:293–303
Hall MO, Bell SS (1993) Meiofauna on the seagrass Thalassia testudinum: population characteristics of harpacticoid copepods and associations with algal epiphytes. Mar Biol 116:137–146
Holland MM, Risser PG (1991) The role of landscape boundaries in the management and restoration of changing environments. Introduction. In: Holland MM, Risser PG, Naiman RJ (eds) Ecotones. The role of landscape boundaries in the management and restoration of changing environments. Chapman and Hall, New York, pp 1–7
Holmquist JG (1992) Disturbance, dispersal and patch insularity in a marine benthic assemblage: influence of a mobile habitat on seagrasses and associated fauna. PhD dissertation, Florida State University, Tallahassee, Florida
Holmquist JG (1994) Benthic macroalgae as a dispersal mechanism for fauna: influence of a marine tumbleweed. J Exp Mar Biol Ecol 180:235–251
Irlandi EA (1994) Large and small scale effects of habitat structure on rates of predation: how percent cover of seagrass affects rates of predation and siphon nipping on an infaunal bivalve. Oecologia 98:176–183
Johnson AR, Wiens JA, Milne BT, Crist TO (1992) Animal movements and population dynamics in heterogenous landscapes. Landscape Ecol 7:63–75
Kern JC, Taghon GL (1986) Can passive recruitment explain harpacticoid copepod distribution in relation to epibenthic structure? J Exp Mar Biol Ecol 101:1–23
Kilar JA, Norris JN (1988) Composition export, and import of drift vegetation on a tropical plant-dominated, fringin-reef platform (Caribbean Panama). Coral Reefs 7:93–103
Kurdziel JP, Bell SS (1992) Emergence and dispersal of phytaldwelling meiobenthic copepods. J Exp Mar Biol Ecol 163:43–64
Lewis FG III (1987) Crustacean epifauna of seagrass and macroalgae in Apalachee Bay, Florida, USA. Mar Biol 94:219–229
Lewis FG III, Stoner AW (1983) Distribution of macrofauna within seagrass beds: an explanation for patterns of abundance. Bull Mar Sci 33:296–304
MacNeil SE, Fairweather PG (1993) Single large or several small marine reserves? An experimental approach with seagrass fauna. J Biogeogr 20:429–440
Norton TA, Mathieson AC (1983) The biology of unattached seaweeds In: Round FE, Chapman AOR (eds) Progress in phycological research. Elsevier, New York, pp 334–386
O'Neil RV, Johnson AR King AW (1989) A hierarchical framework for the analysis of scale. Landscape Ecol 3:193–206
Orth RJ, Heck KL Jr, Montfrans J van (1984) Faunal communities in seagrass beds: a review of the influence of plant structure and prey characteristics on predator-prey relationships. Estuaries 7:339–350
Robbins BD, Bell SS (1994) Seagrass landscapes: a terrestrial approach to the marine subtidal environment. Trends Ecol Evol 9:301–304
Sogard SM (1990) Parameters of habitat quality for epibenthic fishes and decapod crustaceans in New Jersey estuaries. PhD dissertation, Rutgers University, New Brunswick, New Jersey
Virnstein RW, Carbonara PA (1985) Seasonal abundance and distribution of drift algae and seagrasses in the mid-Indian River Lagoon, Florida. Aquat Bot 23:67–83
Wiens JA (1989) Spatial scaling in ecology. Funct Ecol 3:385–397
Wilson MF, Crome FHJ (1989) Patterns of seed rain at the edge of a tropical Queensland rain forest. J Trop Ecol 5:301–308
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Bell, S.S., Hall, M.O. & Robbins, B.D. Toward a landscape approach in seagrass beds: using macroalgal accumulation to address questions of scale. Oecologia 104, 163–168 (1995). https://doi.org/10.1007/BF00328581
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DOI: https://doi.org/10.1007/BF00328581