Lichen growth and lichenometry

Richard A. Armstrong

doi:10.1007/978-81-322-2181-4_10

Lichen growth and lichenometry

Richard A. Armstrong

Research output: Chapter in Book/Published conference output › Chapter

11 Citations (SciVal)

Abstract

Lichenometry is one of the most widely used methods available for dating the surface age of various substrata including rock surfaces, boulders, walls, and archaeological remains. It depends on the assumption that if the lag time before colonisation of a substratum by a lichen is known and lichen age can be estimated, then a minimum date can be obtained by measuring the diameter (or another property related to size) of the largest lichen at the site. Lichen age can be determined by variety of methods including calibrating lichen size against surfaces of known age (‘indirect lichenometry’), by constructing a growth rate-size curve from direct measurement of lichen growth (‘direct lichenometry’), using radio-carbon (RC) dating, and from lichen ‘growth rings’. This chapter describes: (1) lichen growth rates and longevity, (2) methods of estimating lichen age, (3) the methodology of lichenometry and (4) applications of lichenometry. Despite its limitations, lichenometry is likely to continue to play an important role in dating a variety of surfaces and also in providing data that contribute to the debate regarding global warming and climate change.

Original language	English
Title of host publication	Recent advances in lichenology
Subtitle of host publication	modern methods and approaches in biomonitoring and bioprospection
Editors	Dalip Kumar Upreti, Pradeep K. Divakar, Vertika Shukla, Rajesh Bajpal
Place of Publication	New Delhi (IN)
Publisher	Springer
Pages	213-227
Number of pages	15
Volume	1
ISBN (Electronic)	978-81-322-2181-4
ISBN (Print)	978-81-322-21800-7
DOIs	https://doi.org/10.1007/978-81-322-2181-4_10
Publication status	Published - 2015

Keywords

lichen growth
Lichen growth rate-size curve
direct lichenometry
Indirect lichenometry
Growth rings

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10.1007/978-81-322-2181-4_10

Cite this

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title = "Lichen growth and lichenometry",

abstract = "Lichenometry is one of the most widely used methods available for dating the surface age of various substrata including rock surfaces, boulders, walls, and archaeological remains. It depends on the assumption that if the lag time before colonisation of a substratum by a lichen is known and lichen age can be estimated, then a minimum date can be obtained by measuring the diameter (or another property related to size) of the largest lichen at the site. Lichen age can be determined by variety of methods including calibrating lichen size against surfaces of known age ({\textquoteleft}indirect lichenometry{\textquoteright}), by constructing a growth rate-size curve from direct measurement of lichen growth ({\textquoteleft}direct lichenometry{\textquoteright}), using radio-carbon (RC) dating, and from lichen {\textquoteleft}growth rings{\textquoteright}. This chapter describes: (1) lichen growth rates and longevity, (2) methods of estimating lichen age, (3) the methodology of lichenometry and (4) applications of lichenometry. Despite its limitations, lichenometry is likely to continue to play an important role in dating a variety of surfaces and also in providing data that contribute to the debate regarding global warming and climate change.",

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language = "English",

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AB - Lichenometry is one of the most widely used methods available for dating the surface age of various substrata including rock surfaces, boulders, walls, and archaeological remains. It depends on the assumption that if the lag time before colonisation of a substratum by a lichen is known and lichen age can be estimated, then a minimum date can be obtained by measuring the diameter (or another property related to size) of the largest lichen at the site. Lichen age can be determined by variety of methods including calibrating lichen size against surfaces of known age (‘indirect lichenometry’), by constructing a growth rate-size curve from direct measurement of lichen growth (‘direct lichenometry’), using radio-carbon (RC) dating, and from lichen ‘growth rings’. This chapter describes: (1) lichen growth rates and longevity, (2) methods of estimating lichen age, (3) the methodology of lichenometry and (4) applications of lichenometry. Despite its limitations, lichenometry is likely to continue to play an important role in dating a variety of surfaces and also in providing data that contribute to the debate regarding global warming and climate change.

KW - lichen growth

KW - Lichen growth rate-size curve

KW - direct lichenometry

KW - Indirect lichenometry

KW - Growth rings

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U2 - 10.1007/978-81-322-2181-4_10

DO - 10.1007/978-81-322-2181-4_10

M3 - Chapter

SN - 978-81-322-21800-7

VL - 1

SP - 213

EP - 227

BT - Recent advances in lichenology

A2 - Upreti, Dalip Kumar

A2 - Divakar, Pradeep K.

A2 - Shukla, Vertika

A2 - Bajpal, Rajesh

PB - Springer

CY - New Delhi (IN)

ER -

Lichen growth and lichenometry

Abstract

Keywords

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The influence of environmental factors on the growth of lichens in the field

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