Local Density Variation may Mimic Effects of Asymmetric Competition on Plant Size Variability

Mehringer, P. J., Jr., J. C. Sheppard, and F. F. Foit, Jr. 1984. The age of the Glacier Peak tephra in west-central Montana. Quaternary Research 21:36-41. Mickelson, D. M., and H. W. Borns, Jr. 1972. Chronology of a kettle-hole peat bog, Cherryfield, Maine. Geological Society of America Bulletin 83:827-832. Mullineaux, D. R. 1986. Summary of pre-1980 tephra-fall deposits erupted from Mount St. Helens, Washington state, U.S.A. Journal of Volcanology and Geothermal Research 48:17-26. Olsson, I. U. 1979. A warning against radiocarbon dating of samples containing little carbon. Boreas (Oslo) 8:203207. Porter, S. C. 1976. Pleistocene glaciation in the southern part of the North Cascade Range, Washington. Geological Society of America Bulletin 87:61-75.