RT Journal Article
T1 Is there tree senescence? The fecundity evidence
A1 Qiu, Tong
A1 Aravena, Marie-Claire
A1 Andrus, Robert
A1 Ascoli, Davide
A1 Bergeron, Yves
A1 Berretti, Roberta
A1 Bogdziewicz, Michal
A1 Boivin, Thomas
A1 Bonal Andrés, Raúl
A1 Caignard, Thomas
A1 Calama, Rafael
A1 Camarero, Julio
A1 Clark, Connie
A1 Courbaud, Benoit
A1 Delzon, Sylvain
A1 Donoso Calderon, Sergio
A1 Farfan-Rios, William
A1 Gehring, Catherine
A1 Gilbert, Gregory
A1 Greenberg, Cathryn
A1 Guo, Qinfeng
A1 Hille Ris Lambers, Janneke
A1 Hoshizaki, Kazuhiko
A1 Ibanez, Ines
A1 Journé, Valentin
A1 Kilner, Christopher
A1 Kobe, Richard
A1 Kunstler, Georges
A1 LaMontagne, Jalene
A1 Ledwon, Mateusz
A1 Lutz, James A.
A1 Motta, Renzo
A1 Myers, Jonathan A.
A1 Nagel, Thomas A.
A1 Nunez, Chase L.
A1 Pearse, Ian S.
A1 Piechnik, Łukasz
A1 Poulsen, John R.
A1 Poulton-Kamakura, Renata
A1 Redmond, Miranda D.
A1 Reid, Chantal D.
A1 Rodman, Kyle C.
A1 Scherer, C. Lane
A1 Schmidt Van Marle, Harald
A1 Seget, Barbara
A1 Sharma, Shubhi
A1 Silman, Miles
A1 Swenson, Jennifer J.
A1 Swift, Margaret
A1 Uriarte, Maria
A1 Vacchiano, Giorgio
A1 Veblen, Thomas T.
A1 Whipple, Amy V.
A1 Whitham, Thomas G.
A1 Wion, Andreas P.
A1 Wright, S. Joseph
A1 Zhu, Kai
A1 Zimmerman, Jess K.
A1 Żywiec, Magdalena
A1 Clark, James S.
AB Despite its importance for forest regeneration, food webs, and human economies, changes in tree fecundity with tree size and age remain largely unknown. The allometric increase with tree diameter assumed in ecological models would substantially overestimate seed contributions from large trees if fecundity eventually declines with size. Current estimates are dominated by overrepresentation of small trees in regression models. We combined global fecundity data, including a substantial representation of large trees. We compared size–fecundity relationships against traditional allometric scaling with diameter and two models based on crown architecture. All allometric models fail to describe the declining rate of increase in fecundity with diameter found for 80% of 597 species in our analysis. The strong evidence of declining fecundity, beyond what can be explained by crown architectural change, is consistent with physiological decline. A downward revision of projected fecundity of large trees can improve the next generation of forest dynamic models.
PB National Academy of Sciences
SN 0027-8424 Electronic: 1091-6490
YR 2021
FD 2021-08-16
LK https://hdl.handle.net/20.500.14352/4855
UL https://hdl.handle.net/20.500.14352/4855
LA eng
NO National Science Foundation (NSF). Division of Environmental Biology
NO Belmont Forum
NO National Aeronautics and Space Administration (NASA)
NO Programme d’Investissement d’Avenir under Project Forecasting Biodiversity change
NO NSF Long Term Ecological Research
NO W. Szafer Institute of Botany of the Polish Academy of Sciences and Polish National Science Foundation
NO National Science Foundation (NSF). Long Term Research in Environmental Biology (LTREB)
NO Gordon and Betty Moore Foundation
NO United States Department of Agriculture (USDA) Forest Service
DS Docta Complutense
RD 10 abr 2025