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Related Experiment Video

Updated: Nov 25, 2025

A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges
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Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature.

Giuliano Maselli Locosselli1,2, Roel J W Brienen3, Melina de Souza Leite4

  • 1Institute of Biosciences, University of São Paulo, São Paulo, SP 05508-090, Brazil; locosselli@yahoo.com.br msbuck@usp.br.

Proceedings of the National Academy of Sciences of the United States of America
|December 15, 2020
PubMed
Summary
This summary is machine-generated.

Tropical trees grow faster but live shorter lives. Rising temperatures and aridity decrease tree longevity, especially in tropical forests, impacting future forest biomass.

Keywords:
carbon cycleclimate changedendrochronologyforest dynamics

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Area of Science:

  • Ecology
  • Forest Science
  • Climate Change Biology

Background:

  • Forests store the largest terrestrial biomass, with tropical lowlands being highly productive.
  • Future forest biomass is sensitive to tree longevity and growth rate responses to climate change.

Purpose of the Study:

  • To analyze variations in tree longevity and growth rates across global biomes.
  • To assess the influence of climate, specifically temperature and aridity, on tree growth and longevity.

Main Methods:

  • Utilized tree-ring data from 3,343 populations and 438 tree species.
  • Compared growth rates and longevity between tropical and non-tropical biomes.
  • Investigated climate controls on tree longevity within tropical lowlands.

Main Results:

  • Tropical trees grow twice as fast and live significantly shorter (186 years) than non-tropical trees (322 years).
  • Global tree growth and longevity strongly correlate with temperature.
  • In tropical lowlands, increased aridity and temperatures above 25.4°C significantly reduce tree longevity.

Conclusions:

  • Decreasing tree longevity in the tropics is linked to increasing evaporative demands under warmer, drier climates.
  • Findings explain increased tree mortality in tropical forests and potential shifts in forest composition.
  • Future warmer and drier climates are likely to expand conditions favoring lower tree longevity in tropical lowlands.