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Maximum tree lifespans derived from public-domain dendrochronological data.

Franco Biondi1, David M Meko2, Gianluca Piovesan3

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|March 17, 2023
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Summary
This summary is machine-generated.

The International Tree-Ring Data Bank (ITRDB) reveals global tree longevity, with conifers often exceeding 1,000 years and angiosperms peaking around 500 years. This data offers a reliable ecological trait assessment.

Keywords:
Biological databaseMethodology in biological sciencesPlant Biology

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Area of Science:

  • Ecology
  • Paleoclimatology
  • Botany

Background:

  • The International Tree-Ring Data Bank (ITRDB) is a valuable public resource for understanding tree growth and age.
  • Estimating global tree longevity is crucial for ecological studies and assessing long-term environmental changes.

Purpose of the Study:

  • To utilize the ITRDB to estimate maximum tree longevity for various species worldwide.
  • To analyze the distribution of longevity across different tree types (conifers and angiosperms).

Main Methods:

  • Analysis of the longest continuous tree-ring width series from the ITRDB as an index of maximum tree age.
  • Compilation of longevity estimates for 237 tree species globally using 3,689 ITRDB collections.

Main Results:

  • Longevity estimates were generated for 157 conifer and 80 angiosperm species.
  • 22 conifer species exceeded 1,000 years in age, while angiosperms peaked around 500 years.
  • 144 species demonstrated longevity exceeding 300 years.

Conclusions:

  • The ITRDB provides a robust dataset for determining tree longevity as a key ecological trait.
  • Understanding tree longevity is vital for assessing human impacts on global ecosystems.