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Microscale dispersion of meiobenthic copepods in response to food resource patchiness


, : Microscale dispersion of meiobenthic copepods in response to food resource patchiness. Journal of Experimental Marine Biology & Ecology 118(3): 229-244

Microscale (mm2-cm2) spatial patterns of harpacticoid copepods were determined in intertidal mud-flat sediments using contiguous coring and were analysed with spatial autocorrelation. Associations with potential major food resources (diatoms) were further examined in laboratory studies. In the field, patches of Microarthridion littorale (Poppe) are positively correlated with high concentrations of diatoms (as measured by Chl a concentration) at low tide. Also, laboratory preference experiments show that this species seeks and locates sediments containing high concentrations of diatoms and/or their chemical exudates. During high water, significant patchiness in M. littorale disappears as some individuals frequent the water column. Scottolana canadensis (Willey) is not associated with sediment chlorophyll pigments. S. canadensis is a burrow dweller which feeds primarily during times of water cover on suspended planktonic material, and laboratory preference experiments indicate it does not actively seek sediments containing high concentrations of sediment food resources. Microspatial dispersion of intertidal meiofauna does not appear to be regulated by any single factor, and patterns vary with species and feeding mode (benthic or planktonic). Additionally, spatial pattern in epibenthic mud dwelling copepods appears to be disrupted with each tidal cycle due to active or passive resuspension processes. Spatial patterns, therefore, probably develop relatively quickly, and are influenced by processes occurring during the proceeding tidal stage.

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Other references

George, M., 2001: The right to leave. Nursing Standard 14(23): 16-16

Hartman, Alan M., 1994: Cloudy skies Information for perception of objects near horizons. Ecological Psychology 6(4): 289-296

Faver, J.C.; Zheng, Z.; Merz, K.M., 2012: Statistics-based model for basis set superposition error correction in large biomolecules. We describe a statistics-based model for the estimation of basis set superposition error (BSSE) for large biomolecular systems in which molecular fragment interactions are classified and analyzed with a linear model based on a bimolecular proximit...

G.E.Williams, 1988: Cyclicity in the late Precambrian Elatina Formation, South Australia; solar or tidal signature?. New observations from two late Precambrian (~800-650 Ma) sedimentary rhythmites in South Australia (Reynella Siltstone and Chambers Bluff Tillite) reveal cycles structurally similar to the ~12-laminae cycles of the ~650-Ma Elatina Formation but wh...

Mokma, D.; Robertson, L.; Erickson, A., 1978: Soil management groups: an inventory of soil physical properties. Journal of soil and water conservation: 33 (5) 240-242

Fraser, A.; Terhune, M., 1985: Radiographic studies of postural behaviour in the sheep fetus. II. Complex fetal movements. Developments in animal and veterinary sciences8(18): 85-96

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Not given., 1928: Tabel voor globale onderscheiding onzer Mieren in het veld (Werksters). Natura Amsterdam, 264-267

Ksue K.Jinghwa, 1969: A preliminary analysis of the statics and kinetics of the Glarus overthrust. Mechanics of movement, zone of flowage at base of thrust structure, frictional sliding, overthrust faulting, rate of movement estimated at 0.2-10.0 cm/yr, eastern Switzerland.

Dieckmann, P.; Krage, R., 2014: Simulation and psychology: creating, recognizing and using learning opportunities. Psychology is relevant for improving the use of simulation in anesthesiology, as it allows us to describe, explain and optimize the interactions of learners and instructors as well as the design of simulation scenarios and debriefings. Much psycho...