Morphological and moisture availability controls of the leaf area-to-sapwood area ratio: Analysis of measurements on Australian trees

H. Togashi, I.C. Prentice, B.J. Evans, D.I. Forrester, Paul Drake, P.M. Feikema, K. Brooksbank, D. Eamus, D.T. Taylor

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    © 2015 Published by John Wiley & Sons Ltd. The leaf area-to-sapwood area ratio (LA:SA) is a key plant trait that links photosynthesis to transpiration. The pipe model theory states that the sapwood cross-sectional area of a stem or branch at any point should scale isometrically with the area of leaves distal to that point. Optimization theory further suggests that LA:SA should decrease toward drier climates. Although acclimation of LA:SA to climate has been reported within species, much less is known about the scaling of this trait with climate among species. We compiled LA:SA measurements from 184 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed, based on measurements on branches and trunks of trees from one to 27 years old. Despite considerable scatter in LA:SA among species, quantile regression showed strong (0.2 <R1 <0.65) positive relationships between two climatic moisture indices and the lowermost (5%) and uppermost (5-15%) quantiles of log LA:SA, suggesting that moisture availability constrains the envelope of minimum and maximum values of LA:SA typical for any given climate. Interspecific differences in plant hydraulic conductivity are probably responsible for the large scatter of values in the mid-quantile range and may be an important determinant of tree morphology. We compiled LA:SA measurements from 183 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed. LA:SA quantile regression showed positive relationships between two climatic moisture indices and the lowermost and uppermost quantiles.
    Original languageEnglish
    Pages (from-to)1263-1270
    JournalEcology and Evolution
    Volume5
    Issue number6
    DOIs
    Publication statusPublished - 2015

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    sapwood
    leaf area
    moisture
    pipes
    climate
    pipe
    angiosperm
    branches
    Angiospermae
    analysis
    acclimation
    transpiration
    hydraulic conductivity
    photosynthesis
    tree trunk
    stem
    stems

    Cite this

    Togashi, H. ; Prentice, I.C. ; Evans, B.J. ; Forrester, D.I. ; Drake, Paul ; Feikema, P.M. ; Brooksbank, K. ; Eamus, D. ; Taylor, D.T. / Morphological and moisture availability controls of the leaf area-to-sapwood area ratio: Analysis of measurements on Australian trees. In: Ecology and Evolution. 2015 ; Vol. 5, No. 6. pp. 1263-1270.
    @article{2c512995cbc84f98b22d0876dccdf4b5,
    title = "Morphological and moisture availability controls of the leaf area-to-sapwood area ratio: Analysis of measurements on Australian trees",
    abstract = "{\circledC} 2015 Published by John Wiley & Sons Ltd. The leaf area-to-sapwood area ratio (LA:SA) is a key plant trait that links photosynthesis to transpiration. The pipe model theory states that the sapwood cross-sectional area of a stem or branch at any point should scale isometrically with the area of leaves distal to that point. Optimization theory further suggests that LA:SA should decrease toward drier climates. Although acclimation of LA:SA to climate has been reported within species, much less is known about the scaling of this trait with climate among species. We compiled LA:SA measurements from 184 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed, based on measurements on branches and trunks of trees from one to 27 years old. Despite considerable scatter in LA:SA among species, quantile regression showed strong (0.2 <R1 <0.65) positive relationships between two climatic moisture indices and the lowermost (5{\%}) and uppermost (5-15{\%}) quantiles of log LA:SA, suggesting that moisture availability constrains the envelope of minimum and maximum values of LA:SA typical for any given climate. Interspecific differences in plant hydraulic conductivity are probably responsible for the large scatter of values in the mid-quantile range and may be an important determinant of tree morphology. We compiled LA:SA measurements from 183 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed. LA:SA quantile regression showed positive relationships between two climatic moisture indices and the lowermost and uppermost quantiles.",
    author = "H. Togashi and I.C. Prentice and B.J. Evans and D.I. Forrester and Paul Drake and P.M. Feikema and K. Brooksbank and D. Eamus and D.T. Taylor",
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    Togashi, H, Prentice, IC, Evans, BJ, Forrester, DI, Drake, P, Feikema, PM, Brooksbank, K, Eamus, D & Taylor, DT 2015, 'Morphological and moisture availability controls of the leaf area-to-sapwood area ratio: Analysis of measurements on Australian trees' Ecology and Evolution, vol. 5, no. 6, pp. 1263-1270. https://doi.org/10.1002/ece3.1344

    Morphological and moisture availability controls of the leaf area-to-sapwood area ratio: Analysis of measurements on Australian trees. / Togashi, H.; Prentice, I.C.; Evans, B.J.; Forrester, D.I.; Drake, Paul; Feikema, P.M.; Brooksbank, K.; Eamus, D.; Taylor, D.T.

    In: Ecology and Evolution, Vol. 5, No. 6, 2015, p. 1263-1270.

    Research output: Contribution to journalArticle

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    T1 - Morphological and moisture availability controls of the leaf area-to-sapwood area ratio: Analysis of measurements on Australian trees

    AU - Togashi, H.

    AU - Prentice, I.C.

    AU - Evans, B.J.

    AU - Forrester, D.I.

    AU - Drake, Paul

    AU - Feikema, P.M.

    AU - Brooksbank, K.

    AU - Eamus, D.

    AU - Taylor, D.T.

    PY - 2015

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    N2 - © 2015 Published by John Wiley & Sons Ltd. The leaf area-to-sapwood area ratio (LA:SA) is a key plant trait that links photosynthesis to transpiration. The pipe model theory states that the sapwood cross-sectional area of a stem or branch at any point should scale isometrically with the area of leaves distal to that point. Optimization theory further suggests that LA:SA should decrease toward drier climates. Although acclimation of LA:SA to climate has been reported within species, much less is known about the scaling of this trait with climate among species. We compiled LA:SA measurements from 184 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed, based on measurements on branches and trunks of trees from one to 27 years old. Despite considerable scatter in LA:SA among species, quantile regression showed strong (0.2 <R1 <0.65) positive relationships between two climatic moisture indices and the lowermost (5%) and uppermost (5-15%) quantiles of log LA:SA, suggesting that moisture availability constrains the envelope of minimum and maximum values of LA:SA typical for any given climate. Interspecific differences in plant hydraulic conductivity are probably responsible for the large scatter of values in the mid-quantile range and may be an important determinant of tree morphology. We compiled LA:SA measurements from 183 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed. LA:SA quantile regression showed positive relationships between two climatic moisture indices and the lowermost and uppermost quantiles.

    AB - © 2015 Published by John Wiley & Sons Ltd. The leaf area-to-sapwood area ratio (LA:SA) is a key plant trait that links photosynthesis to transpiration. The pipe model theory states that the sapwood cross-sectional area of a stem or branch at any point should scale isometrically with the area of leaves distal to that point. Optimization theory further suggests that LA:SA should decrease toward drier climates. Although acclimation of LA:SA to climate has been reported within species, much less is known about the scaling of this trait with climate among species. We compiled LA:SA measurements from 184 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed, based on measurements on branches and trunks of trees from one to 27 years old. Despite considerable scatter in LA:SA among species, quantile regression showed strong (0.2 <R1 <0.65) positive relationships between two climatic moisture indices and the lowermost (5%) and uppermost (5-15%) quantiles of log LA:SA, suggesting that moisture availability constrains the envelope of minimum and maximum values of LA:SA typical for any given climate. Interspecific differences in plant hydraulic conductivity are probably responsible for the large scatter of values in the mid-quantile range and may be an important determinant of tree morphology. We compiled LA:SA measurements from 183 species of Australian evergreen angiosperm trees. The pipe model was broadly confirmed. LA:SA quantile regression showed positive relationships between two climatic moisture indices and the lowermost and uppermost quantiles.

    U2 - 10.1002/ece3.1344

    DO - 10.1002/ece3.1344

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    EP - 1270

    JO - Ecology and Evolution

    JF - Ecology and Evolution

    SN - 2045-7758

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