Abstract
The seasonal distribution and abundance of benthic macrophytes were characterized from second- and third-order segments of a stream flowing over granite flatrock in the southeastern United States. Eighteen genera were identified over two annual cycles including macroalgae (60% of the total), angiosperms (30%), and bryophytes (10%). Light availability as affected by riparian shading was a major factor influencing community structure. Based on strong agreement among two-way indicator species analysis, detrended correspondence analysis and cluster analysis, we identified four communities characteristic of distinct light regimes and seasons. In shaded sites the red alga Lemanea australis was dominant during cool seasons, and the aquatic moss Fontinalis sp. was dominant during warm seasons. By contrast, in open sites L. australis and the angiosperm Podostemum ceratophyllum were co-dominant during cool seasons, and P. ceratophyllum was also dominant in warm seasons. The prolific macrophyte communities followed a pattern of broad seasonal maxima for dominant species along with rapid fluctuations in ephemerals. The community dynamics suggest that competitive interactions control space partitioning among macrophytes on the granite flatrock.
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References
Atkinson, G. F., 1980. Monograph of the Lemaneaceae of the United States. Ann. Bot. 4: 177–230.
Blum, J. L., 1956. The ecology of river algae. Bot. Rev. 22: 291–341.
Connell, J. H. & R. D. Slayter, 1977. Mechanisms of succession in natural communities and their role in community stability and organization. Am. Nat. 111: 1119–1144.
Conover, W. J., 1980. Practical nonparametric statistics. 2nd edn. John Wiley & Sons, Inc., New York, 1–493.
Dillard, G. E., 1970. The benthic algal communities of a North Carolina Piedmont stream. Nova Hedwigia 17: 9–27.
Gauch, H. G., 1982. Multivariate analysis in community ecology. Cambridge University Press, New York, 201–203.
Gauch, H. G., Jr. & R. H. Whittaker, 1981. Hierarchical classification of community data. J. Ecol. 69: 135–152.
Greig-Smith, P., 1983. Quantitative plant ecology. Third ed. Blackwell Scientific Publications, Oxford: 1–359.
Hambrook, J. A. & R. G. Sheath, 1987. Grazing of freshwater Rhodophyta. J. Phycol. 23: 656–662.
Hill, M. O., 1979a. TWINSPAN—a FORTRAN program for arranging multivariate data in an ordered two-way table by classification of the individuals and attributes. Section of Ecology and Systematics, Cornell University, Ithaca.
Hill, M. O., 1979b. DECORANA—a FORTRAN program for detrended correspondence analysis and reciprocal averaging. Section of Ecology and Systematics, Cornell University, Ithaca.
Hill, M. O. & H. G. Gauch, 1980. Detrended correspondence analysis: an improved ordination technique. Vegetatio 42: 47–58.
Hynes, H. B. N., 1970. The ecology of running waters. Liverpool University Press, Liverpool: 1–555.
Lance, G. N. & W. T. Williams, 1967. A general theory of classification sorting strategies. I. Hierarchical systems. Computer J. 9: 373–380.
Lubchenco, J. L., 1980. Algal zonation in the New England rocky intertidal community: an experimental analysis. Ecology 61: 333–344.
Lubchenco, J. L. & B. A. Menge, 1978. Community development and persistence in a low rocky intertidal zone. Ecol. Monogr. 59: 677–694.
Madsen, J. D. & M. S. Adams, 1989. The distribution of submerged aquatic macrophyte biomass in a eutrophic stream, Badfish Creek: the effect of environment. Hydrobiologia 171: 111–119.
May, R. M., 1975. Patterns of species abundance on diversity. In M. L. Cody & J. M. Diamond (eds), Ecology and Evolution of Communities. Belknap Press, Cambridge: 81–120.
McIntire, C. D., 1973. Periphyton dynamics in laboratory streams: A simulation model and its implications. Ecol. Monogr. 43: 399–420.
McVaugh, R., 1943. The vegetation of the granitic flat-rocks of the southeastern United States. Ecol. Monogr. 13: 119–166.
Minshall, G. W., 1978. Autotrophy in stream ecosystems. BioScience 28: 767–771.
Mueller-Dombois, D. & H. Ellenberg, 1974. Aims and Methods of Vegetation Ecology. Wiley-Interscience, New York: 1–547.
Naiman, R. J., 1983. The annual pattern and spatial distribution of aquatic oxygen metabolism in boreal watersheds. Ecol. Monogr. 53: 73–94.
National Oceanic and Atmospheric Administration, 1988–1990. Local climatological data monthly summaries for Raleigh-Durham Airport. National Environmental Satellite, Data and Information Service, Ashville.
Oosting, H. J. & L. E. Anderson, 1937. Plant succession on granite rock in eastern North Carolina. Bot. Gazette 100: 750–768.
Pringle, C. M., 1990. Nutrient spatial heterogeneity: effects on community structure, physiognomy, and diversity of stream algae. Ecology 71: 905–920.
Round, F. E., 1972. Patterns of seasonal succession of freshwater epipelic algae. Br. phycol. J. 7: 213–220.
Sand-Jensen, K., 1989. Environmental variables and their effect on photosynthesis of aquatic plant communities. Aquat. Bot. 34: 5–25.
SAS Institute, Inc., 1987. SAS/STAT guide for personal computers. Version 6. SAS Institute, Inc., Cary (NC): 1–1029.
Sebens, K. P., 1986. Spatial relationships among encrusting marine organisms in the New England subtidal zone. Ecol. Monogr. 56: 73–96.
Sheath, R. G., 1984. The biology of freshwater red algae. In F. E. Round & D. J. Chapman (eds.), Progress in Phycological Research Vol. 3. Biopress, Ltd., Bristol: 89–157.
Sheath, R. G. & J. M. Burkholder, 1985. Characteristics of softwater streams in Rhode Island. II. Composition and seasonal dynamics of macroalgal communities. Hydrobiologia 138: 109–118.
Sheath, R. G. & J. A. Hambrook, 1988. Mechanical adaptations to flow in freshwater red algae. J. Phycol. 24: 107–111.
Sheath, R. G. & J. A. Hambrook, 1990. Freshwater ecology. In K. M. Cole & R. G. Sheath (eds.), Biology of the Red Algae. Cambridge University Press, New York: 421–453.
Sheath, R. G., J. M. Burkholder, M. O. Morison, A. D. Steinman & K. L. VanAlstyne, 1986. Effect of tree canopy removal by gypsy moth larvae on the macroalgae of a Rhode Island headwater stream. J. Phycol. 22: 567–570.
Stephenson, T. A.& A. Stephenson, 1949. The universal features of zonation between tide marks on rocky coasts. J. Ecol. 37: 289–305.
Stevenson, R. J. & S. Hashim, 1989. Variation in diatom community structure among habitats in sandy streams. J. Phycol. 25: 678–686.
Strahler, A. N., 1964. Qualitative geomorphology of drainage basins and channel networks. In V. T. Chow (ed.), Handbook of Applied Hydrology. McGraw Hill Publishing Company, Ltd., New York, Sect. 4–11.
Thirb, H. H. & K. Benson-Evans, 1984. The effect of temperature on the growth of Lemanea thalli and carpospore germination. Arch. Hydrobiol. 103: 341–346.
Turner, T., 1985. Stability of rocky intertidal surfgrass beds: Persistence, preemption, and recovery. Ecology 66: 83–92.
Underwood, A. J. & E. J. Denley, 1984. Paradigms, explanations and generalizations in models for the structure of intertidal communities on rocky shores. In D. Simberloff, D. R. Strong, L. E. Abele & A. B. Thistle (eds), Ecological Communities: Conceptual Issues and the Evidence. Princeton University Press, Princeton: 151–180.
Vannote, R. L. & G. W. Minshall, K. W. Cummins, J. R. Sedell & C. E. Cushing, 1980. The river continuum concept. Can. J. Fish. aquat. Sci. 37: 130–137.
Vogel, S., 1981. Live in moving fluids: The physical biology of flow. Princeton University Press, Princeton: 1–352.
Wehr, J. D., 1981. Analysis of seasonal succession of attached algae in a mountain stream, the North Alouette River, British Columbia. Can. J. Bot. 59: 1465–1474.
Westlake, D. F., 1975. Macrophytes. In B. A. Whitton (ed.), River Ecology. University of California Press, Berkeley: 106–128.
Whitford, L. A. & G. J. Schumacher, 1961. Effect of a current on mineral uptake and respiration by a freshwater alga. Limnol. Oceanogr. 6: 423–425.
Whitford, L. A. & G. J. Schumacher, 1963. Communities of algae in North Carolina streams and their seasonal relations. Hydrobiologia 22: 133–195.
Whittaker, R. H., 1975. Communities and ecosystems. MacMillan, New York: 87–94.
Whitton, B. A., 1975. Algae. In B. A. Whitton (ed.), River Ecology. University of California Press, Berkeley: 81–105.
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Everitt, D.T., Burkholder, J.M. Seasonal dynamics of macrophyte communities from a stream flowing over granite flatrock in North Carolina, USA. Hydrobiologia 222, 159–172 (1991). https://doi.org/10.1007/BF00016155
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DOI: https://doi.org/10.1007/BF00016155