Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-20T05:46:02.369Z Has data issue: false hasContentIssue false

Annual Variation in the Dynamics of a Woodland Plant Community

Published online by Cambridge University Press:  24 August 2009

Michael Treshow
Affiliation:
Professor of Biology, Department of Biology, University of Utah, Salt Lake City, Utah 84112, U.S.A.
John Allan
Affiliation:
Research Ecologist, University of Utah Research Institute, Environmental Studies Laboratory, 391-D Chipeta Way, Salt Lake City, Utah 84108, U.S.A.

Extract

The dynamics of a Pinyon Pine-Utah Juniper woodlands community were studied to determine the baseline conditions and the annual variation in the major plant components. Understanding the normal baseline community status and its annual variation is paramount to evaluating the possible impact of an air pollutant on the system. Environmental impact assessments rarely concern data from more than one or two years, yet results of the present study show that annual variation is such that data from several years are necessary to establish a valid baseline for community structure.

Type
Main Papers
Copyright
Copyright © Foundation for Environmental Conservation 1979

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

REFERENCES

Anderson, F. A. (1966). Air Pollution Damage to Vegetation in Georgetown Canyon, Idaho. M.S. thesis, University of Utah, Salt Lake City, Utah: 102 pp., illustr., mimeogr.Google Scholar
Blackburn, W. H. & Tueller, P. T. (1970). Pinyon and juniper invasion in black sagebrush communities in eastcentral Nevada. Ecology, 51, pp. 841–8.CrossRefGoogle Scholar
Cody, M. L. & Diamond, J. M. (Eds) (1975). Ecology and Evolution of Communities. Belknap Press of Harvard University, Cambridge, Mass.: ix + 545 pp., illustr.Google Scholar
Colwell, R. K. (1974). Predictability, constancy and contingency of periodic phenomena. Ecology, 55, pp. 1148–53.CrossRefGoogle Scholar
Keller, T. (1977). Frostschäden als Folge einer “latenten” Immissionsschädigung Staub-Reinhalt. Luft 38, pp. 24–6, illustr.Google Scholar
Ma, Te-Hsieu, Isbandi, D., Kahan, S. H. & Ya, T. S. (1973) Low level of SO2 enhanced chromatid aberrations in Tradescantia pollen tubes and seasonal variation of aberration rates. Mutation Research, 21, pp. 96100.CrossRefGoogle Scholar
Malhotra, S. S. & Hocking, D. (1976). Biochemical and cytological effects of sulphur dioxide on plant metabolism. New Phytologist, 76, pp. 227–37.CrossRefGoogle Scholar
Mudd, J. B. & Kozlowski, T. T. (Eds) (1975). Responses of Plants to Air Pollutants. Academic Press, New York, N.Y.: xii + 383 pp., illustr.Google Scholar
Stearns, S. C. (1975). A Comparison of the Evolution and Expression of Life History Traits in Stable and Fluctuating Environments: Gambosia affinis in Hawaii. Ph.D. thesis, University of British Columbia, Vancouver, B.C.: 330 pp., mimeogr.Google Scholar
Treshow, M. (1968). Impact of air pollutants on plant populations. Phytopathology, 58, pp. 216–21.Google Scholar
Treshow, M. (1970). Environment and Plant Response. McGraw-Hill, New York, N.Y.: xv + 422., illustr.Google Scholar
West, N. E. & Tausch, R. J. (1975a). Patterns and rates of Pinyon—Juniper woodland invasion and degree of suppression of understory vegetation. Annual Prog. Rept Utah Agric. Exp. Sta. Prof. 750, 66 pp.Google Scholar
West, N. E. & Tausch, R. J. (1975b). Basic synecological relationships in Juniper-Pinyon woodlands. Pp. 4153 in The Pinyon-Juniper Ecosystem: A Symposium (Ed G. F. Gifford & F. E. Busby). Utah Agric. Expt St., Logan, Utah: 194 pp., illustr.Google Scholar
Whittaker, R. H. (1975). Communities and Ecosystems, 2nd edn.Macmillan, New York, N.Y.: xviii + 385 pp., illustr.Google Scholar