Persistent Link:
http://hdl.handle.net/10150/261927
Title:
Evenness Indices Measure the Signal Strength of Biweight Site Chronologies
Author:
Riitters, Kurt H.
Affiliation:
ManTech Environmental Technology, Inc., Research Triangle Park, North Carolina
Issue Date:
1990
Rights:
Copyright © Tree-Ring Society. All rights reserved.
Collection Information:
This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.
Publisher:
Tree-Ring Society
Journal:
Tree-Ring Bulletin
Citation:
Riitters, K. 1990. Evenness indices measure the signal strength of biweight site chronologies. Tree-Ring Bulletin 50:21-27.
Abstract:
The signal strength of a biweight site chronology is properly viewed as an outcome of analysis rather than as a property of the forest-climate system. It can be estimated by the evenness of the empirical weights that are assigned to individual trees. The approach is demonstrated for a 45-year biweight chronology obtained from 40 jack pine (Pinus banksiana Lamb.) trees. The annual evenness of the empirical weights is calculated by indices derived from the Shannon and Simpson diversity indices, and the variances are found by the jackknife procedure. The annual estimates are then averaged to find an overall estimate of biweight signal strength for the 45-year period. These techniques are most useful for determining sample sizes for the biweight procedure, and for comparing different methods of detrending and standardizing data sets prior to applying the biweight mean-value function.
Keywords:
Dendrochronology; Tree Rings; Dendroclimatology; Forest Trees; Growth Rings; Methodology; Trees; Variation; Woody Plants
ISSN:
0041-2198
Additional Links:
http://www.treeringsociety.org

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleEvenness Indices Measure the Signal Strength of Biweight Site Chronologiesen_US
dc.contributor.authorRiitters, Kurt H.en_US
dc.contributor.departmentManTech Environmental Technology, Inc., Research Triangle Park, North Carolinaen_US
dc.date.issued1990-
dc.rightsCopyright © Tree-Ring Society. All rights reserved.en_US
dc.description.collectioninformationThis item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.en_US
dc.publisherTree-Ring Societyen_US
dc.identifier.journalTree-Ring Bulletinen_US
dc.identifier.citationRiitters, K. 1990. Evenness indices measure the signal strength of biweight site chronologies. Tree-Ring Bulletin 50:21-27.en_US
dc.description.abstractThe signal strength of a biweight site chronology is properly viewed as an outcome of analysis rather than as a property of the forest-climate system. It can be estimated by the evenness of the empirical weights that are assigned to individual trees. The approach is demonstrated for a 45-year biweight chronology obtained from 40 jack pine (Pinus banksiana Lamb.) trees. The annual evenness of the empirical weights is calculated by indices derived from the Shannon and Simpson diversity indices, and the variances are found by the jackknife procedure. The annual estimates are then averaged to find an overall estimate of biweight signal strength for the 45-year period. These techniques are most useful for determining sample sizes for the biweight procedure, and for comparing different methods of detrending and standardizing data sets prior to applying the biweight mean-value function.en_US
dc.subjectDendrochronologyen_US
dc.subjectTree Ringsen_US
dc.subjectDendroclimatologyen_US
dc.subjectForest Treesen_US
dc.subjectGrowth Ringsen_US
dc.subjectMethodologyen_US
dc.subjectTreesen_US
dc.subjectVariationen_US
dc.subjectWoody Plantsen_US
dc.identifier.citationRiitters, K. 1990. Evenness indices measure the signal strength of biweight site chronologies. Tree-Ring Bulletin 50:21-27.en_US
dc.identifier.issn0041-2198-
dc.identifier.urihttp://hdl.handle.net/10150/261927-
dc.identifier.journalTree-Ring Bulletinen_US
dc.typeArticleen_US
dc.relation.urlhttp://www.treeringsociety.orgen_US
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