Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-25T05:46:44.807Z Has data issue: false hasContentIssue false
  • English
  • Français

Re-establishment of VA mycorrhizas following severe disturbance: comparative patch dynamics of a shrub desert and a subalpine volcano

Published online by Cambridge University Press:  05 December 2011

Michael F. Allen
Michael F. Allen
Affiliation:
Department of Biology, San Diego State University, San Diego, CA 92182, U.S.A.
Get access

Synopsis

Although current models of the roles of VA mycorrhizas in succession describe the fungal effects on the plant, they ignore the immigration patterns of the fungi. It is suggested here that the vectors of spore immigration (animals and wind) determine the pattern of re-invasion with respect to the patches of vegetation establishing on a disturbed site. The environment dictates the dominant vector. If invasion is facilitated by animals (locomotion), such as at Mount St Helens, they inoculate patches of plants, not individuals, and the patches change faster than immigration rates. Thus, the island biogeography equilibrium model is not applicable to describe VA mycorrhizal fungal establishment. If invasion is by wind (mass flow), such as in a cold desert system, inoculum is rapidly distributed across a site and VA mycorrhizal fungal richness and density rapidly equilibrates with its resource, a single shrub. By applying these models, a priori prediction of establishment following catastrophic disturbance might be possible, as opposed to mere description.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 94: Fungi and Ecological Disturbance , 1988 , pp. 63 - 71
Copyright
Copyright © Royal Society of Edinburgh 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allen, E. B. & Allen, M. F. 1988. The mediation of competition by mycorrhizae in successional and patchy environments. In Perspectives on Plant Competition. eds. Grace, J. B. & Tilman, G. D. (in press). New York: Academic Press.Google Scholar
Allen, M. F. 1987a. Ecology of vesicular-arbuscular mycorrhizae in an arid ecosystem: use of natural processes promoting dispersal and establishment. In Mycorrhizae in the next decade. Practical Applications and Research Priorities, eds. Sylvia, D. M., Hung, L. L. & Graham, J. H., pp. 133–135. Gainesville, Florida: IFAS, University of Florida.Google Scholar
Allen, M. F. 1987b. Re-establishment of mycorrhizas on Mount St. Helens: migration vectors. Transactions of the British Mycological Society 88, 413–417.CrossRefGoogle Scholar
Allen, M. F. 1988. Belowground spatial patterning: influence of root architecture, microorganisms and nutrients on plant survival in arid lands. In The Reconstruction of Disturbed Arid Lands, ed. Allen, E. B. (in press). Boulder, Colorado: Westview Press.Google Scholar
Allen, M. F., Allen, E. B. & West, N. E. 1987. Influence of parasitic and mutualistic fungi on Artemisia tridentata during high precipitation years. Bulletin of the Torrey Botanical Club 114, 272–279.CrossRefGoogle Scholar
Allen, M. F., MacMahon, J. A. & Andersen, D. C. 1984. Reestablishment of Endogonaceae on Mount St. Helens: survival of residuals. Mycologia 76, 1031–1038.CrossRefGoogle Scholar
Allen, M. F., & MacMahon, J. A. 1985. Impact of disturbance on a cold desert fungi: Comparative microscale dispersion patterns. Pedobiobgia 28, 215–224.Google Scholar
Allen, M. F., & MacMahon, J. A. 1988. Direct VA mycorrhizal inoculation of colonizing plants by pocket gophers (Thomomystalpoides) on Mount St. Helens. Mycologia 80, 754–756.CrossRefGoogle Scholar
Carpenter, S. E., Trappe, J. M. & Ammirati, J. Jr. 1987. Observations of fungal succession in the Mount St. Helens devastation zone, 1980–1983. Canadian Journal of Botany 65, 716–728.CrossRefGoogle Scholar
Forman, R. T. T. & Godron, M. 1986. Landscape Ecology. New York: John Wiley & Sons.Google Scholar
Hipps, L. E. & Allen, M. F. 1988. The distortion of turbulence by an isolated shrub, and associations with entrainment and deposition of spores. In: 18th Conference, Agricultural and Forest Meteorology and 8th Conference, Biometerology and Aerobiology, pp. 275–276. Boston, Massachusetts: American Meteorological Society.Google Scholar
MacArthur, R. H. & Wilson, E. O. 1967. The Theory of Island Biogeography. Princeton: Princeton University Press.Google Scholar
MacMahon, J. A. 1981. Successional processes: comparisons among biomes with special reference to probable roles of and influences on animals. In Forest Succession, Concepts and Application, eds. West, D. C., Shugart, H. H. & Botkin, D. B., pp. 277–304. New York: Springer-Verlag.CrossRefGoogle Scholar
Tepedino, V. J. & Stanton, N. L. 1976. Cushion plants as islands. Oecologia (Berlin) 25, 243–256.CrossRefGoogle ScholarPubMed
Warner, N. J. 1985. Dispersal of vesicular-arbuscular mycorrhizal fungi in a disturbed arid ecosystem: the potential roles of biotic and abiotic agents. M.S. Thesis, Utah State University, Logan.Google Scholar
Warner, N. J., Allen, M. F. & MacMahon, J. A. 1987. Dispersal agents of vesicular-arbuscular mycorrhizal fungi in a disturbed arid ecosystem. Mycologia 79, 721–730.CrossRefGoogle Scholar