PotvinVasseur1997

Référence

Potvin, C., Vasseur, L. (1997) Long-term CO2 enrichment of a pasture community: Species richness, dominance, and succession. Ecology, 78(3):666-677.

Résumé

The present study addresses responses of a pasture community to CO2 enrichment in situ. It focused on two levels of organization. We examined changes in both community properties and species-specific responses during long-term exposure to high CO2 concentration. The underlying hypothesis is that CO2 enrichment could change community composition. At the community level, we observed higher species richness and lesser dominance under enriched than ambient CO2. Two species were apparently central in explaining our results, Agropyron repens and Plantago major. The cover of this first species increased only under ambient CO2. Conversely, the cover of the latter species decreased under ambient CO2 but remained stable under enriched CO2. Species were pooled into dicots and monocots to examine space acquisition changes in monocot cover through time were more tightly coupled with that of dicots under ambient than high CO2. Enrichment with CO2 appeared to have a positive effect on the early-successional species, preventing the complete dominance by late-successional species. In fact, under elevated CO2 early-and late-successional species were coexisting. Therefore, our results suggest the possibility that succession patterns might be altered by CO2 enrichment apparently because enriched CO2 stimulates the growth of dicots.

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@ARTICLE { PotvinVasseur1997,
    AUTHOR = { Potvin, C. and Vasseur, L. },
    TITLE = { Long-term CO2 enrichment of a pasture community: Species richness, dominance, and succession },
    JOURNAL = { Ecology },
    YEAR = { 1997 },
    VOLUME = { 78 },
    PAGES = { 666-677 },
    NUMBER = { 3 },
    NOTE = { 00129658 (ISSN) Cited By (since 1996): 42 Export Date: 26 April 2007 Source: Scopus CODEN: ECOLA Language of Original Document: English Correspondence Address: Vasseur, L.; Department of Biology; St. Mary's University Halifax, NS B3H 3C3, Canada References: Bakelaar, R.G., Odum, E.P., Community and population level responses to fertilization in an old-field ecosystem (1978) Ecology, 59, pp. 660-665; Bazzaz, F.A., The response of natural ecosystems to the rising glohal CO2 levels (1990) Annual Review of Ecology and Systematics, 21, pp. 167-196; Carson, W.P., Barren, G.W., Succession in old-field plant communities: Effects of contrasting types of nutrient enrichment (1988) Ecology, 69, pp. 984-994; Curtis, P.S., Drake, B.G., Leadley, P.W., Arp, W.J., Whigham, D.F., Growth and senescence in plant communities exposed to elevated CO2 concentrations on an estuarinc marsh (1989) Oecologia, 78, pp. 20-29; Diamond, J.M., Avifaunal equilibria and species turnover rates on the Channel Islands of California (1969) Proceedings of the National Academy of Sciences (USA), 64, pp. 57-63; Drake, B.G., Leadley, P.W., Canopy photosynthesis of crops and native plant communities exposed to long-term elevated CO2 (1991) Plant. Cell and Environment, 14, pp. 853-860; Gihson, C.W.D., Brown, V.K., Grazing and vegetation change: Deflected or modified succession? (1992) Journal of Applied Ecology, 29, pp. 120-131; Goldberg, D.E., Neiborhood competition in an oldfield plant community (1987) Ecology, 68, pp. 1211-1223; Goldherg, D., Barton, A.M., Patterns and consequences of interspecific competition in natural communities: A review of experiments with plants (1992) American Naturalist, 139, pp. 771-801; Grime, J.P., (1979) Plant Strategies and Vegetation Processes, , John Wiley \& Sons, New York, New York, USA; Gurevitch, J., Unnasch, R.S., Experimental removal of a dominant species at two levels of soil fertility (1989) Canadian Journal of Botany, 67, pp. 3470-3477; Hubert, D.W., Optimization of plant root:shoot ratios and internal nitrogen concentration (1990) Annals of Botany, 66, pp. 91-99; Hunt, H.W., Trlica, M.J., Redente, E.F., Moore, J.C., Detling, J.K., Kittel, T.G.F., Walter, D.E., Elliott, E.T., Simulation model for the effects of climate change on temperate grassland ecosystems (1991) Ecological Modeling, 53, pp. 205-246; Ko?rner, Ch., CO2 fertilization: The great uncertainty in future vegetation development (1993) Vegetation Dynamics and Glohal Change, pp. 53-70. , A. M. Solomon and H. H. Shugart. editors. Chapman and Hall, New York. New York, USA; Schulze, E.D., Mooney, H.A., Scaling from species to vegetation: The usefulness of functional groups (1993) Biodiversity and Ecosystem Function, pp. 117-140. , Springer, Berlin, Germany; Ko?rner, Ch., Mieglictta, F., Long term effects of naturally elevated CO2 on Mediterranean grassland and forest trees (1994) Oecologia, 99, pp. 343-351; Larigauderie, A., Hubert, D.W., Oechel, W.C., Effect of CO2 enrichment and nitrogen availability on resource acquisition in a grass. Bromus mollis (1988) Oecologia, 77, pp. 544-549; Leadley, P., Ko?rner, Ch., Effects of elevated CO2 on plant species dominance in a highly diverse calcareous grassland (1996) Biological Diversity in a CO2-rich World. Physiological Ecology Series, , C. Ko?rner and F. A. Bazzaz. editors. Academic Press. San Diego, California, USA, in press; Lewis, C.E., Swindel, B.F., Tanner, G.W., Species diversity and diversity profile: Concept, measurement and application to timber and range management (1988) Journal of Range Management, 41, pp. 466-469; Lu?scher, A., Differences between legumes and non-legumes of permanent grassland in their responses to free air carbon dioxide enrichment - Its effect on competition in a multi-species mixture (1996) Biological Diversity in a CO2-rich World. Physiological Ecology Series, , Ch. Ko?rner and F. A. Bazzaz. editors. Academic Press, San Diego. California, USA; Miller, T.E., Werner, P.A., Competitive effects and responses between plant species in a first-year old-field community (1987) Ecology, 68, pp. 1201-1210; Mooney, H.A., Chapin III, F.S., Future directions of global change research in terrestrial ecosystems (1994) Trends in Ecology and Evolution, 9, pp. 371-373; Mooney, H.A., Drake, B.G., Luxmore, R.J., Occhel, W.C., Pitelka, L.F., Predicting ecosystem responses to elevated CO2 concentrations. What has been learned from laboratory experiments on plant physiology and field observations? (1991) BioScience, 41, pp. 96-104; Owensby, C.E., Effects of elevated carbon dioxide on forage quality for ruminants (1996) Biological Diversity in a CO2-rich World. Physiological Ecology Series, , C. Ko?rner and F. A. Bazzaz, editors. Academic Press. San Diego. California, USA, in press; Owensby, C.E., Coyne, P.J., Ham, J.M., Auen, L.M., Knapp, A.K., Biomass production in tall grass prairie ecosystem exposed to ambient and elevated CO2 (1993) Ecological Applications, 3, pp. 644-653; Pitelka, L.F., Ecosystem response to elevated CO2 (1994) Trends in Ecology and Evolution, 9, pp. 204-206; Potvin, C., ANOVA: Experiments in controlled environments (1990) Design and Analysis of Ecological Experiments, pp. 46-68. , S. M. Schciner and J. Gurevitch. editors. Chapman and Hall. New York, New York. USA; Potvin, C., Tardif, S., Sources of variability and experimental design in growth chambers (1988) Functional Ecology, 2, pp. 123-130; Scha?ppi, B., Ko?rner, C., Growth responses of an alpine grassland to elevated CO2 (1996) Oecologia, 105, pp. 43-52; Silvertown, J., Lines, A.C.M., Dale, M.P., Spatial competition between grasses - Rates of mutual invasion between four species and interaction with grazing (1994) Journal of Ecology, 82, pp. 31-38; Stoffen, W.L., Walker, B.H., Ingram, J.S., Koch, G.W., (1992) Global Change and Terrestrial Ecosystems: The Operational Plan, , IGBP/ICSU; Stewart, J., Potvin, C., Effect of elevated CO2 on an artificial grassland community: Competition, invasion and neighborhood growth (1996) Functional Ecology, , in press; Tho?rhallsdo?ttir, T.E., The dynamics of five grasses and while clover in a simulated mosaic sward (1990) Journal of Ecology, 78, pp. 989-1923; Tilman, D., Secondary succession and the pattern of plant dominance along experimental nitrogen gradients (1987) Ecological Monographs, 57, pp. 189-214; Tilman, D., Wedin, D., Oscillations and chaos in the dynamics of a perennial grass (1991) Nature, 353, pp. 653-655; Tissue, D.L., Oechel, W.C., Physiological response of Eriopherum vaginatum to field elevated CO2 and temperature in the Alaskan tussock tundra (1987) Ecology, 68, pp. 401-410; Turkington, R., Klein, E., Chanway, C.P., Interactive effects of nutrients and disturbance: An experimental test of plant strategy theory (1993) Ecology, 74, pp. 863-878; Wilson, S.D., Tilman, D., Interactive effects of fertilization and disturbance on community structure and resource availability in an old-field plant community (1991) Oecologia, 88, pp. 61-71; Woodward, F.I., Diament, A.D., Functional ap- Proaches to predicting the ecological: Effects of global change (1991) Functional Ecology, 5, pp. 202-212; Zar, J.H., (1984) Biostatistical Analysis. Second Edition, , Prentice-Hall. Englewood Cliffs. New Jersey. USA. },
    ABSTRACT = { The present study addresses responses of a pasture community to CO2 enrichment in situ. It focused on two levels of organization. We examined changes in both community properties and species-specific responses during long-term exposure to high CO2 concentration. The underlying hypothesis is that CO2 enrichment could change community composition. At the community level, we observed higher species richness and lesser dominance under enriched than ambient CO2. Two species were apparently central in explaining our results, Agropyron repens and Plantago major. The cover of this first species increased only under ambient CO2. Conversely, the cover of the latter species decreased under ambient CO2 but remained stable under enriched CO2. Species were pooled into dicots and monocots to examine space acquisition changes in monocot cover through time were more tightly coupled with that of dicots under ambient than high CO2. Enrichment with CO2 appeared to have a positive effect on the early-successional species, preventing the complete dominance by late-successional species. In fact, under elevated CO2 early-and late-successional species were coexisting. Therefore, our results suggest the possibility that succession patterns might be altered by CO2 enrichment apparently because enriched CO2 stimulates the growth of dicots. },
    KEYWORDS = { CO2 enrichment Community changes Dominance Global change Pasture Species diversity Succession carbon dioxide enrichment dominance pasture species richness succession Agropyron repens Plantaginaceae Plantago major Poaceae },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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