Summary
Cottonwood saplings were exposed to ozone or charcoal-filtered air in a closed chamber. After leaf abscission, decomposition of individual leaf discs was measured in containers of stream water. Exposure of plants to 200 ppb ozone for 5 h caused early leaf abscission and changes in the chemical composition of leaves at time of abscission. Early-abscised leaves from O3-exposed plants had higher nitrogen, but decomposed more slowly than leaves from control plants. Leaves from O3-exposed plants that abscised at the normal time had lower nitrogen content and lower specific leaf mass than control leaves, but decomposed at the same rate as leaves from control plants. The results imply that O3 exposure can alter fundamental processes important to the functioning of detritus-based aquatic ecosystems.
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References
Ashmore M, Bell N, Rutter J (1985) The role of ozone in forest damage in West Germany. Ambio 14:81–88
Blank LW, Roberts TM, Skeffington RH (1988) New perspectives on forest decline. Nature 336:27–30
Coleman JS, Jones CG (1988) Plant stress and insect performance: cottonwood, ozone and a leaf beetle. Oecologia 76:57–61
Coleman JS, Jones CG, Smith WH (1987) The effect of ozone on cottonwood-leaf rust interactions: independence of abiotic stress, genotype, and leaf ontogeny. Can J Bot 65:949–953
Cummins KW, Klug MJ (1979) Feeding ecology of stream invertebrates. Ann Rev Ecol Syst 10:147–172
Garden A, Davies RW (1988) The effects of a simulated acid precipitation on leaf litter quality and the growth of a detritivore in a buffered lotic system. Environmental Pollution 52:303–313
Gosz JR (1978) The flow of energy in a forest ecosystem. Scientific American 238:93–102
Guderian R, Tingey DT, Rabe R (1985) Effects of photochemical oxidants on plants. In: Guderian R (ed) Air Pollution by Photochemical Oxidants: Formation, Transport, Control and Effects on Plants. Springer-Verlag, Berlin, pp 129–335
Hedin L, Likens GE, Bormann FH (1987) Decrease in precipitation acidity resulting from decreased SO 2−4 concentration. Nature 325:244–246
Hutchinson TC, Meema KM (1987) Effects of Atmospheric Pollutants on Forests, Wetlands and Agricultural Ecosystems. Springer-Verlag, Berlin
Jones CG, Coleman JS (1988) Plant stress and insect behavior: cottonwood, ozone and the feeding and oviposition preference of a beetle. Oecologia 76:51–56
Kaushik NK, Hynes HBN (1971) The fate of dead leaves that fall into streams. Arch Hydrobiol 68:465–515
Kohut RJ, Amundson RG, Laurence JA (1986) Evaluation of the growth and yield of soybean exposed to ozone in the field. Environ Pollut Ser A 41:219–234
National Acid Precipitation Assessment Program, Vol. 1 (1987) National Acid Precipitation Assessment Program, Washington, DC, USA
Stout RJ, Taft WH, Merritt RW (1985) Patterns of macroinvertebrate colonization on fresh and senescent alder leaves in two Michigan streams. Freshwat Biol 15:573–580
United States Environmental Protection Agency (1986) Air quality criteria for ozone and other photochemical oxidants. EPA/600/8-84/020cf. (United States Environmental Protection Agency, Research Triangle, North Carolina, USA)
Wang D, Karnosky DF, Bormann FH (1986) Effects of ambient ozone on the productivity of Populus tremuloides Michx. grown under field conditions. Can J For Res 16:47–55
Ward GM, Cummins KW (1979) Effects of food quality on growth of a stream detritivore, Paratendipes albimanus (Meigen) (Diptera: Chronomidae). Ecology 60:57–64
Webster JR, Benfield EF (1986) Vascular plant breakdown in freshwater ecosystems. Ann Rev Ecol Syst 17:567–594
Wellburn A (1988) Air Pollution and Acid Rain: The Biological Impact. Longman Scientific and Technical, New York
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Findlay, S., Jones, C.G. Exposure of cottonwood plants to ozone alters subsequent leaf decomposition. Oecologia 82, 248–250 (1990). https://doi.org/10.1007/BF00323541
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DOI: https://doi.org/10.1007/BF00323541