The relationship between western spruce budworm defoliation levels and growth of individual Douglas-fir and grand fir trees
Regression models were fit relating foliage levels to height and basal area growth of 192 trees from 26 stands representing a wide range of site and stand conditions. The study confirmed that deteriorated tree conditions in prior years (often resulting from defoliation) affect current-year growth at...
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| Veröffentlicht in: | Forest science 1988-06, Vol.34 (2), p.496-504 |
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| creator | Nichols, T.J |
| description | Regression models were fit relating foliage levels to height and basal area growth of 192 trees from 26 stands representing a wide range of site and stand conditions. The study confirmed that deteriorated tree conditions in prior years (often resulting from defoliation) affect current-year growth at specific foliage levels. Absolute height and basal area growth at specific foliage levels were found to be linearly related to absolute height and basal area growth before defoliation, indicating that proportional growth losses resulting from specified levels of defoliation do not vary between fast-growing and slow-growing trees. Various site, stand, and tree variables showed no effect on the relationship between foliage levels and proportional growth loss. Models that included predicted nondefoliated growth, foliage level, and preceding-year condition variables explained up to 61 and 91% of the variation in height and basal area growth (In-In transformation), respectively |
| doi_str_mv | 10.1093/forestscience/34.2.496 |
| format | Article |
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The study confirmed that deteriorated tree conditions in prior years (often resulting from defoliation) affect current-year growth at specific foliage levels. Absolute height and basal area growth at specific foliage levels were found to be linearly related to absolute height and basal area growth before defoliation, indicating that proportional growth losses resulting from specified levels of defoliation do not vary between fast-growing and slow-growing trees. Various site, stand, and tree variables showed no effect on the relationship between foliage levels and proportional growth loss. Models that included predicted nondefoliated growth, foliage level, and preceding-year condition variables explained up to 61 and 91% of the variation in height and basal area growth (In-In transformation), respectively</description><identifier>ISSN: 0015-749X</identifier><identifier>EISSN: 1938-3738</identifier><identifier>DOI: 10.1093/forestscience/34.2.496</identifier><identifier>CODEN: FOSCAD</identifier><language>eng</language><publisher>Bethesda, MD: Society of American Foresters</publisher><subject>ABIES GRANDIS ; ALTURA ; Biological and medical sciences ; CHORISTONEURA ; Choristoneura freemani ; Choristoneura occidentalis ; CRECIMIENTO ; CROISSANCE ; defoliation ; Fundamental and applied biological sciences. Psychology ; HAUTEUR ; height ; INSECTE PHYLLOPHAGE ; INSECTOS DEPREDADORES DE LAS HOJAS ; Phytopathology. Animal pests. Plant and forest protection ; Protozoa. Invertebrates ; PSEUDOTSUGA MENZIESII ; Records, symptoms, damages, economic importance, population surveys ; stand basal area ; Tortricidae</subject><ispartof>Forest science, 1988-06, Vol.34 (2), p.496-504</ispartof><rights>1990 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-5c3b32175d62d1ae51793b267b0a2bd9c976cfaf719e149dfe19485149467d13</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6684191$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Nichols, T.J</creatorcontrib><title>The relationship between western spruce budworm defoliation levels and growth of individual Douglas-fir and grand fir trees</title><title>Forest science</title><description>Regression models were fit relating foliage levels to height and basal area growth of 192 trees from 26 stands representing a wide range of site and stand conditions. The study confirmed that deteriorated tree conditions in prior years (often resulting from defoliation) affect current-year growth at specific foliage levels. Absolute height and basal area growth at specific foliage levels were found to be linearly related to absolute height and basal area growth before defoliation, indicating that proportional growth losses resulting from specified levels of defoliation do not vary between fast-growing and slow-growing trees. Various site, stand, and tree variables showed no effect on the relationship between foliage levels and proportional growth loss. Models that included predicted nondefoliated growth, foliage level, and preceding-year condition variables explained up to 61 and 91% of the variation in height and basal area growth (In-In transformation), respectively</description><subject>ABIES GRANDIS</subject><subject>ALTURA</subject><subject>Biological and medical sciences</subject><subject>CHORISTONEURA</subject><subject>Choristoneura freemani</subject><subject>Choristoneura occidentalis</subject><subject>CRECIMIENTO</subject><subject>CROISSANCE</subject><subject>defoliation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>HAUTEUR</subject><subject>height</subject><subject>INSECTE PHYLLOPHAGE</subject><subject>INSECTOS DEPREDADORES DE LAS HOJAS</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. Invertebrates</subject><subject>PSEUDOTSUGA MENZIESII</subject><subject>Records, symptoms, damages, economic importance, population surveys</subject><subject>stand basal area</subject><subject>Tortricidae</subject><issn>0015-749X</issn><issn>1938-3738</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><recordid>eNqFkcFrHCEUxiW0kE3Sf6CH4qHkNhsdHR2PIU2bQCCHbCA3cfS5a3HHjc5kCf3nO9NdCj314lP4ve97fg-hL5QsKVHsyqcMZSg2QG_hivFlveRKnKAFVaytmGTtB7QghDaV5OrlFJ2V8pMQ0jJSL9Cv1QZwhmiGkPqyCTvcwbAH6PF-EoXc47LLowXcjW6f8hY78CmGPziO8AaxYNM7vM5pP2xw8jj0LrwFN5qIv6VxHU2pfMhHaD7n15ABygX66E0s8OlYz9Hq--3q5q56ePxxf3P9UFkm2FA1lnWsprJxonbUQEOlYl0tZEdM3TlllRTWGy-pAsqV80AVb5vpyoV0lJ2jy4PsLqfXcfqV3oZiIUbTQxqLnsJSzZzk_0A6UaRWMygOoM2plAxe73LYmvyuKdGzkv5nJ5pxXc82U-PXo4Mp1kQ_5WFD-dstRMupmif-fMC8Sdqs84Q8P7Vtw6Wk7DfBI5uh</recordid><startdate>19880601</startdate><enddate>19880601</enddate><creator>Nichols, T.J</creator><general>Society of American Foresters</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7SS</scope><scope>C1K</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>19880601</creationdate><title>The relationship between western spruce budworm defoliation levels and growth of individual Douglas-fir and grand fir trees</title><author>Nichols, T.J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-5c3b32175d62d1ae51793b267b0a2bd9c976cfaf719e149dfe19485149467d13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1988</creationdate><topic>ABIES GRANDIS</topic><topic>ALTURA</topic><topic>Biological and medical sciences</topic><topic>CHORISTONEURA</topic><topic>Choristoneura freemani</topic><topic>Choristoneura occidentalis</topic><topic>CRECIMIENTO</topic><topic>CROISSANCE</topic><topic>defoliation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>HAUTEUR</topic><topic>height</topic><topic>INSECTE PHYLLOPHAGE</topic><topic>INSECTOS DEPREDADORES DE LAS HOJAS</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><topic>PSEUDOTSUGA MENZIESII</topic><topic>Records, symptoms, damages, economic importance, population surveys</topic><topic>stand basal area</topic><topic>Tortricidae</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nichols, T.J</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environmental Sciences and Pollution Management</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Forest science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nichols, T.J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The relationship between western spruce budworm defoliation levels and growth of individual Douglas-fir and grand fir trees</atitle><jtitle>Forest science</jtitle><date>1988-06-01</date><risdate>1988</risdate><volume>34</volume><issue>2</issue><spage>496</spage><epage>504</epage><pages>496-504</pages><issn>0015-749X</issn><eissn>1938-3738</eissn><coden>FOSCAD</coden><abstract>Regression models were fit relating foliage levels to height and basal area growth of 192 trees from 26 stands representing a wide range of site and stand conditions. The study confirmed that deteriorated tree conditions in prior years (often resulting from defoliation) affect current-year growth at specific foliage levels. Absolute height and basal area growth at specific foliage levels were found to be linearly related to absolute height and basal area growth before defoliation, indicating that proportional growth losses resulting from specified levels of defoliation do not vary between fast-growing and slow-growing trees. Various site, stand, and tree variables showed no effect on the relationship between foliage levels and proportional growth loss. Models that included predicted nondefoliated growth, foliage level, and preceding-year condition variables explained up to 61 and 91% of the variation in height and basal area growth (In-In transformation), respectively</abstract><cop>Bethesda, MD</cop><pub>Society of American Foresters</pub><doi>10.1093/forestscience/34.2.496</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0015-749X |
| ispartof | Forest science, 1988-06, Vol.34 (2), p.496-504 |
| issn | 0015-749X 1938-3738 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_15100299 |
| source | Alma/SFX Local Collection |
| subjects | ABIES GRANDIS ALTURA Biological and medical sciences CHORISTONEURA Choristoneura freemani Choristoneura occidentalis CRECIMIENTO CROISSANCE defoliation Fundamental and applied biological sciences. Psychology HAUTEUR height INSECTE PHYLLOPHAGE INSECTOS DEPREDADORES DE LAS HOJAS Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates PSEUDOTSUGA MENZIESII Records, symptoms, damages, economic importance, population surveys stand basal area Tortricidae |
| title | The relationship between western spruce budworm defoliation levels and growth of individual Douglas-fir and grand fir trees |
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