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    The Relationship Between Maturation Size and Maximum Tree Size From Tropical to Boreal Climates

    Journé, Valentin ORCID logoORCID: https://orcid.org/0000-0001-7324-7002, Bogdziewicz, Michał ORCID logoORCID: https://orcid.org/0000-0002-6777-9034, Courbaud, Benoit, Kunstler, Georges ORCID logoORCID: https://orcid.org/0000-0002-2544-1940, Qiu, Tong ORCID logoORCID: https://orcid.org/0000-0003-4499-437X, Acuña, Marie-Claire Aravena, Ascoli, Davide ORCID logoORCID: https://orcid.org/0000-0002-2671-5122, Bergeron, Yves, Berveiller, Daniel, Boivin, Thomas, Bonal, Raul, Caignard, Thomas, Cailleret, Maxime, Calama, Rafael, Camarero, J Julio ORCID logoORCID: https://orcid.org/0000-0003-2436-2922, Chang-Yang, Chia-Hao ORCID logoORCID: https://orcid.org/0000-0003-3635-4946, Chave, Jerome, Chianucci, Francesco, Curt, Thomas, Cutini, Andrea, Das, Adrian, Daskalakou, Evangelia, Davi, Hendrik, Delpierre, Nicolas, Delzon, Sylvain, Dietze, Michael ORCID logoORCID: https://orcid.org/0000-0002-2324-2518, Calderon, Sergio Donoso, Dormont, Laurent, Espelta, Josep Maria, Farfan-Rios, William, Fenner, Michael, Franklin, Jerry, Gehring, Catherine, Gilbert, Gregory, Gratzer, Georg, Greenberg, Cathryn H, Guignabert, Arthur ORCID logoORCID: https://orcid.org/0000-0002-1512-6760, Guo, Qinfeng, Hacket-Pain, Andrew, Hampe, Arndt, Han, Qingmin, Hanley, Mick E, Lambers, Janneke Hille Ris, Holík, Jan, Hoshizaki, Kazuhiko, Ibanez, Ines, Johnstone, Jill F, Knops, Johannes MH ORCID logoORCID: https://orcid.org/0000-0002-9647-9209, Kobe, Richard K, Kurokawa, Hiroko ORCID logoORCID: https://orcid.org/0000-0001-8778-8045, Lageard, Jonathan ORCID logoORCID: https://orcid.org/0000-0001-8971-0444, LaMontagne, Jalene ORCID logoORCID: https://orcid.org/0000-0001-7713-8591, Ledwon, Mateusz, Lefèvre, François ORCID logoORCID: https://orcid.org/0000-0003-2242-7251, Leininger, Theodor, Limousin, Jean-Marc, Lutz, James ORCID logoORCID: https://orcid.org/0000-0002-2560-0710, Macias, Diana, Mårell, Anders ORCID logoORCID: https://orcid.org/0000-0002-3328-4834, McIntire, Eliot ORCID logoORCID: https://orcid.org/0000-0002-6914-8316, Moran, Emily V, Motta, Renzo, Myers, Jonathan, Nagel, Thomas A, Naoe, Shoji ORCID logoORCID: https://orcid.org/0000-0002-0605-4187, Noguchi, Mahoko, Norghauer, Julian, Oguro, Michio, Ourcival, Jean-Marc, Parmenter, Robert, Pearse, Ian, Pérez-Ramos, Ignacio M, Piechnik, Łukasz, Podgórski, Tomasz, Poulsen, John, Redmond, Miranda D, Reid, Chantal D, Samonil, Pavel, Scher, C Lane ORCID logoORCID: https://orcid.org/0000-0003-3689-5769, Schlesinger, William H, Seget, Barbara, Sharma, Shubhi, Shibata, Mitsue, Silman, Miles, Steele, Michael, Stephenson, Nathan, Straub, Jacob, Sutton, Samantha, Swenson, Jennifer J, Swift, Margaret, Thomas, Peter A, Uriarte, Maria ORCID logoORCID: https://orcid.org/0000-0002-0484-0758, Vacchiano, Giorgio, Whipple, Amy, Whitham, Thomas, Wright, S Joseph ORCID logoORCID: https://orcid.org/0000-0003-4260-5676, Zhu, Kai ORCID logoORCID: https://orcid.org/0000-0003-1587-3317, Zimmerman, Jess, Żywiec, Magdalena ORCID logoORCID: https://orcid.org/0000-0002-5992-4051 and Clark, James S (2024) The Relationship Between Maturation Size and Maximum Tree Size From Tropical to Boreal Climates. Ecology Letters, 27 (9). e14500. ISSN 1461-023X

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    Abstract

    The fundamental trade-off between current and future reproduction has long been considered to result in a tendency for species that can grow large to begin reproduction at a larger size. Due to the prolonged time required to reach maturity, estimates of tree maturation size remain very rare and we lack a global view on the generality and the shape of this trade-off. Using seed production from five continents, we estimate tree maturation sizes for 486 tree species spanning tropical to boreal climates. Results show that a species' maturation size increases with maximum size, but in a non-proportional way: the largest species begin reproduction at smaller sizes than would be expected if maturation were simply proportional to maximum size. Furthermore, the decrease in relative maturation size is steepest in cold climates. These findings on maturation size drivers are key to accurately represent forests' responses to disturbance and climate change.

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