Size Frequency Distributions as a Lichenometric Technique: An Assessment
- 31 July 1983
- journal article
- research article
- Published by Taylor & Francis in Arctic and Alpine Research
- Vol. 15 (3) , 285-294
- https://doi.org/10.2307/1550825
Abstract
The use of size frequency distributions of lichen populations has, in the past, been recommended as a lichenometric technique. Theoretically, saxicolous lichen populations should be density-dependent with the result that the size frequency distributions of older populations should be best described by a Poisson model. Evidence from Scotland and Norway indicates that the size frequency distributions are extremely variable, ranging from truncated log-normal to Poisson in form. Consequently, the use of the 1-in-1000 thallus, derived from a log-normal model, is not universally applicable as a descriptive index, particularly in the case of older lichen populations.This publication has 4 references indexed in Scilit:
- Aspects of Competition in Saxicolous Lichen CommunitiesThe Lichenologist, 1980
- Families of lichenometric dating curves from the Storbreen gletschervorfeld, Jotunheimen, NorwayNorsk Geografisk Tidsskrift - Norwegian Journal of Geography, 1974
- Glacial Chronology and Glacial Geomorphology in the Marginal Zones of the Glaciers, Midtdalsbreen and Nigardsbreen, South NorwayNorsk Geografisk Tidsskrift - Norwegian Journal of Geography, 1971
- Recent Glacial History of an Alpine Area in the Colorado Front Range, U.S.A.: I. Establishing a Lichen-Growth CurveJournal of Glaciology, 1967