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Title: 14C/C measurements support Andreev's internode method to determine lichen growth rates in Cladina stygia (Fr.) Ahti

Abstract

Growth rates and the ability to date an organism can greatly contribute to understanding its population biology and community dynamics. 1n 1954, Andreev proposed a method to date Cladina, a fruticose lichen, using total thallus length and number of internodes. No research, however, has demonstrated the reliability of this technique or compared its estimates to those derived by other means. In this study, we demonstrate the utility of {sup 14}C/C ratios to determine lichen age and growth rate in Cladina stygia (Fr.) Ahti collected from northwestern Alaska, USA. The average growth rate using {sup 14}C/C ratios was 6.5 mm {center_dot} yr{sup -1}, which was not significantly different from growth rates derived by Andreev's internode method (average = 6.2 mm {center_dot} yr{sup -1}); thus, suggesting the reliability of Andreev's simple field method for dating lichens. In addition, we found lichen growth rates appeared to differ with geographic location, yet did not seem related to ambient temperature and total precipitation.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
944316
Report Number(s):
UCRL-JRNL-237189
TRN: US200902%%678
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Journal Name:
The Lichenologist, vol. 40, no. 6, November 23, 2008, pp. 559-565
Additional Journal Information:
Journal Volume: 40; Journal Issue: 6
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; AGE ESTIMATION; ALASKA; AMBIENT TEMPERATURE; BIOLOGY; LICHENS; PRECIPITATION; RELIABILITY

Citation Formats

Holt, E, and Bench, G. 14C/C measurements support Andreev's internode method to determine lichen growth rates in Cladina stygia (Fr.) Ahti. United States: N. p., 2007. Web.
Holt, E, & Bench, G. 14C/C measurements support Andreev's internode method to determine lichen growth rates in Cladina stygia (Fr.) Ahti. United States.
Holt, E, and Bench, G. 2007. "14C/C measurements support Andreev's internode method to determine lichen growth rates in Cladina stygia (Fr.) Ahti". United States. https://www.osti.gov/servlets/purl/944316.
@article{osti_944316,
title = {14C/C measurements support Andreev's internode method to determine lichen growth rates in Cladina stygia (Fr.) Ahti},
author = {Holt, E and Bench, G},
abstractNote = {Growth rates and the ability to date an organism can greatly contribute to understanding its population biology and community dynamics. 1n 1954, Andreev proposed a method to date Cladina, a fruticose lichen, using total thallus length and number of internodes. No research, however, has demonstrated the reliability of this technique or compared its estimates to those derived by other means. In this study, we demonstrate the utility of {sup 14}C/C ratios to determine lichen age and growth rate in Cladina stygia (Fr.) Ahti collected from northwestern Alaska, USA. The average growth rate using {sup 14}C/C ratios was 6.5 mm {center_dot} yr{sup -1}, which was not significantly different from growth rates derived by Andreev's internode method (average = 6.2 mm {center_dot} yr{sup -1}); thus, suggesting the reliability of Andreev's simple field method for dating lichens. In addition, we found lichen growth rates appeared to differ with geographic location, yet did not seem related to ambient temperature and total precipitation.},
doi = {},
url = {https://www.osti.gov/biblio/944316}, journal = {The Lichenologist, vol. 40, no. 6, November 23, 2008, pp. 559-565},
number = 6,
volume = 40,
place = {United States},
year = {Wed Dec 05 00:00:00 EST 2007},
month = {Wed Dec 05 00:00:00 EST 2007}
}