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Radiocarbon dating opens up new frontiers in the study of tree longevity: Insights from angiosperm trees

Published online by Cambridge University Press:  24 February 2026

Jordan Palli*
Affiliation:
Department of Ecological and Biological Sciences (DEB), University of Tuscia, Viterbo, Italy Department of Earth Science, University of Pisa, Pisa, Italy
Michele Baliva
Affiliation:
Department of Ecological and Biological Sciences (DEB), University of Tuscia, Viterbo, Italy
Franco Biondi
Affiliation:
Department of Natural Resources & Environmental Science, University of Nevada Reno, Reno, United States
Roel Brienen
Affiliation:
School of Geography, University of Leeds, Leeds, United Kingdom
Lucio Calcagnile
Affiliation:
Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Lecce, Italy
Marisa D’Elia
Affiliation:
Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Lecce, Italy
Gianluca Quarta
Affiliation:
Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, Lecce, Italy
Antonino Siclari
Affiliation:
Città Metropolitana di Reggio Calabria, Italy
Gianluca Piovesan
Affiliation:
Department of Ecological and Biological Sciences (DEB), University of Tuscia, Viterbo, Italy
*
Corresponding author: Jordan Palli; Email: jo.palli@unitus.it

Abstract

Long-lived trees support biodiversity at multiple scales, maintain ecosystem functionality, serve as natural archives, and hold cultural and aesthetic value. Despite their importance, the maximum longevity of many tree species remains poorly understood, limiting the design of effective conservation strategies. Challenges in obtaining reliable tree ages are commonly represented by natural wood decay, sampling obstacles, and indistinct or absent annual rings, which prevent or limit the application of tree-ring analyses (dendrochronology). Radiocarbon dating, increasingly accessible and applicable to all species, provides a flexible approach to study tree longevity and its ecological implications. For tropical trees, which mostly lack annual rings, radiocarbon dating is one of the few reliable methods to determine tree ages. Even in sections of the calibration curve characterized by oscillations and plateaus, statistical methods such as wiggle-matching or deposition models may be used to reduce the range of probable tree ages. In this paper, we illustrate a mismatch between tree-ring and radiocarbon-derived estimates of the longevity of angiosperm trees, with tree-ring maximum ages often half of those obtained through radiocarbon dating. We also present the most up-to-date estimates of maximum longevity for 42 arboreal angiosperm species worldwide, based on a literature review. Radiocarbon results indicate that ages of 400–500 years are a common feature of many broadleaved species, while exceptional old ages are restricted to a small minority of individual trees. Our results underscore the need for increased efforts to locate old and ancient trees, investigate their role in ecosystem ecology and ensure their protection.

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Type
Conference Paper
Copyright
© The Author(s), 2026. Published by Cambridge University Press on behalf of University of Arizona

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Footnotes

Selected Papers from the 4th Radiocarbon in the Environment Conference, Lecce, Italy, 23–27 Sept. 2024

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