A field experiment was conducted to determine the effect of disturbance frequency on diatom communities established on artificial substrates within an open canopy site and a closed canopy site of a 3rd order stream. The open canopy site (OCS) had a total of 80 diatom taxa colonizing the substrates, while the closed canopy site (CCS) had only 55 taxa. Cluster analysis revealed that the two sites had distinct diatom communities, although the most common species were similar between sites. There was no effect of disturbance frequency on species diversity (H') at OCS, however species diversity significantly decreased as disturbance frequency increased at CCS. At OCS, Amphora perpusilla increased in abundance as disturbance frequency increased, while Navicula lanceolata abundance decreased as disturbance increased. At CCS, Cocconeis placentula v. euglypta remained dominant regardless of disturbance frequency. The results suggest that some diatom species may be ‘shade adapted’, which may explain the site-specific responses. In addition, diatom growth-forms may explain the within site taxon-specific responses to disturbance. For example, Achnanthes sp. and Cocconeis sp., small horizontal forms, were predominant on the high disturbance substrates. Vertical or large horizontal forms may be mechanically removed by frequent physical disturbance allowing such small horizontal forms to become abundant. Frequent disturbance, by maintaining the community in an early stage of development, directly influences the diatom assemblage on rocks in streams.
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Bott, T. L., 1983. Primary productivity in streams. In J. R. Barnes & G. W. Minshall (eds). Stream ecology: application and testing of general ecological theory. Plenum Press, New York: 29–54.
Connell, J. H., 1978. Diversity in tropical rain forests and coral reefs. Science 199: 1302–1310.
Douglas, B., 1958. The ecology of the attached diatoms and other algae in a small stony stream. J. Ecology 46: 295–322.
Fisher, S. G., L. J. Gray, N. B. Grimm & D. E. Busch, 1982. Temporal succession in a desert stream ecosystem following flash flooding. Ecol. Monogr. 52: 93–110.
Gregory, S. V., 1983. Plant-herbivore interactions in stream systems. In J. R. Barnes & G. W. Minshall (eds). Stream ecology: application and testing of general ecological theory. Plenum Press, New York: 157–190.
Gumtow, R. B., 1955. An investigation of the periphyton in a riffle of the West Gallatin River, Montana. Trans. Am. Microscop. Soc. 74: 278–292.
Hart, D. D., 1985. Grazing insects mediate algal interactions in a stream benthic community. Oikos 44: 40–46.
Hoagland, K. D., S. C. Roemer & J. R. Rosowski, 1982. Colonization and community structure of two periphyton assemblages with emphasis on the diatoms (Bacillariophyceae). Am. J. Bot. 69: 188–212.
Korte, V. L. & D. W. Blinn, 1983. Diatom colonization on artificial substrata in pool and riffle zones studied by light and scanning electron microscopy. J. Phycol. 19: 332–341.
Kuhn, D. L., J. L. Plafkin, J. Cairns, Jr. & R. L. Lowe, 1981. Qualitative characterization of aquatic environments using diatom life-form strategies. Trans. Am. Microscop. Soc. 100: 165–182.
Lamberti, G. A. & V. H. Resh, 1983. Stream periphyton and insect herbivores: an experimental study of grazing by a caddisfly population. Ecology 64: 1124–1135.
Lamberti, G. A. & V. H. Resh, 1985. Comparability of introduced tiles and natural substrates for sampling lotic bacteria, algae, and macroinvertebrates. Freshwat. Biol. 15: 21–30.
Luttenton, M. R. & R. G. Rada, 1986. Effects of disturbance on epiphytic community architecture. J. Phycol. 22: 320–326.
MacArthur, R. H. & E. O. Wilson, 1963. An equilibrium theory of insular zoogeography. Evolution 17: 373–387.
McIntire, C. D. & H. K. Phinney, 1965. Laboratory studies of periphyton production and community metabolism in lotic environments. Ecol. Monogr. 35: 237–258.
Patrick, R., 1967. The effect of invasion rate, species pool, and size of area on the structure of the diatom community. Nat. Acad. Sci. (USA) Proc. 58: 1335–1342.
Patrick, R., 1977. Ecology of freshwater diatoms — diatom communities. In D. Werner (ed.). The biology of diatoms. Botanical Monographs v. 13, Univ. California Press: 284–332.
Patrick, R. & N. A. Roberts, 1979. Diatom communities in the Middle Atlantic States, USA. Some factors that are important to their structure. In R. Simonson (ed.). Fifth symposium on recent and fossil diatoms. Proceedings, Nova Hedwigia, Antwerp, J. Cramer: 265–284.
Patten, B. C., 1962. Species diversity in net phytoplankton of Rariton Bay. J. mar. Res. 20: 57–75.
Pielou, E. C., 1966. The measurement of diversity in different types of biological collections. J. theoret. Biol. 13: 131–144.
Robinson, C. T. & G. W. Minshall, 1986. Effects of disturbance frequency on stream benthic community structure in relation to canopy cover and season. J. N. Am. Benthol. Soc. 5: 237–248.
Ross, L. E. & S. R. Rushforth, 1980. The effects of a new reservoir on the attached diatom communities in Huntington Creek, Utah, U.S.A. Hydrobiologia 68: 157–165.
Ruzicka, M., 1958. Anwendung mathematisch-statistischer Methoden in der Geobotanik (synthetische Bearbeitung von Aufnahmen). Biol. Bratisl. 13: 647–661.
St. Clair, L. L. & S. R. Rushforth, 1976. The diatom flora of the Goshen Warm Spring Ponds and Wet Meadows, Goshen, Utah, U.S.A. Nova Hedwigia 28: 353–425.
SAS Institute, Inc., 1982. SAS user's guide: statistics. SAS Institute, Inc., Cary, North Carolina.
Shannon, C. E. & W. Weaver, 1949. The mathematical theory of communication. Univ. of Illinois Press, Urbana. 117 pp.
Sneath, P. H. & R. R. Sokal, 1973. Numerical taxonomy. W. H. Freeman and Co., San Francisco. 157 pp.
Sousa, W. P., 1979. Disturbance in marine intertidal boulder fields: the nonequilibrium maintenance of species diversity. Ecology 60: 1225–1239.
Standard methods for the examination of water and wastewater. 15th edition. 1980. APHA-AWWA-WPCF.
Steinman, A. D. & C. D. McIntire, 1986. Effects of current velocity and light energy on the structure of periphyton assemblages in laboratory streams. J. Phycol. 22: 352–361.
Stevenson, R. J., 1983. Effects of current and conditions simulating autogenically changing microhabitats on benthic diatom immigration. Ecology 64: 1514–1524.
Stockner, J. G. & F. A. J. Armstrong, 1971. Periphyton of the experimental lakes area, Northwestern Ontario. J. Fish. Res. Bd. Canada 28: 215–229.
Sumner, W. T. & C. D. McIntire, 1982. Grazer-periphyton interactions in laboratory streams. Arch. Hydrobiol. 93: 135–157.
Towns, D. R., 1981. Effects of artificial shading on periphyton and invertebrates in a New Zealand stream. New Zealand J. Mar. Freshwat. Res. 15: 185–192.
Tuchman, M. L. & R. J. Stevenson, 1980. Comparison of clay tile, sterilized rock, and natural substrate diatom communities in a small stream in Southeastern Michigan, USA. Hydrobiologia 75: 73–79.
Warner, J. H. & K. T. Harper, 1972. Understory characteristics related to site quality for aspen in Utah. Brigham Young Univ. Sci. Bull., Biol. Series 16: 1–20.
Zar, J. H., 1984. Biostatistical Analysis (2nd edition). PrenticeHall Inc. Englewood Cliffs, N.J. 718 pp.
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Robinson, C.T., Rushforth, S.R. Effects of physical disturbance and canopy cover on attached diatom community structure in an Idaho stream. Hydrobiologia 154, 49–59 (1987). https://doi.org/10.1007/BF00026830
- artificial substrates
- community structure