Limits to reproduction and seed size-number tradeoffs that shape forest dominance and future recovery



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Qiu, Tong and Andrus, Robert and Aravena, Marie-Claire and Ascoli, Davide and Bergeron, Yves and Berretti, Roberta and Bogdziewicz, Michal and Berveiller, Daniel and Boivin, Thomas and Bonal Andrés, Raúl and Bragg, Don C. and Caignard, Thomas and Calama, Rafael and Camarero, J. Julio and Chang-Yang, Chia-Hao and Cleavitt, Natalie L. and Courbaud, Benoit and Curt, Thomas and Das, Adrian J. and Daskalakou, Evangelia and Davi, Hendrik and Delpierre, Nicolas and Delzon, Sylvain and Dietzel, Michael and Donoso Calderon, Sergio and Dormont, Laurent and Espelta, Josep and Fahey, Timothy J. and Farfan-Rios, William and Gehring, Catherine A. and Gilbert, Gregory S and Gratzer, Georg and Greenberg, Cathryn H. and Guo, Qinfeng and Hacket-Pain, Andrew and Hampe, Arndt and Han, Qingmin and Hille Ris Lambers, Janneke and Hoshizaki, Kazuhiko and Ibanez, Ines and Johnstone, Jill F. and Journé, Valentin and Kabeya, Daisuke and Kilner, Christopher L. and Kitzberger, Thomas and Knops, Johannes M. H. and Kunstler, Georges and Lageard, Jonathan G. A. and LaMontagne, Jalene M. and Ledwon, Mateusz and Lefevre, Francois and Leininger, Theodor and Limousin, Jean-Marc and Lutz, James A. and Macias, Diana and McIntire, Eliot J. B. and Moore, Christopher M. and Moran, Emily and Motta, Renzo and Myers, Jonathan A. and Nagel, Thomas A. and Noguchi, Kyotaro and Ourcival, Jean-Marc and Parmenter, Robert and Pearse, Ian S. and Pérez-Ramos, Ignacio M. and Piechnik, Lukasz and Poulsen, John R. and Poulton-Kamakura, Renata and Redmond, Miranda D. and Reid, Chantal D. and Rodman, Kyle C. and Rodríguez-Sanchez, Francisco and Sanguinetti, Javier D. and Scherer, C. Lane and Schlesinger, William H. and Schmidt Van Marle, Harald and Seget, Barbara and Sharma, Shubhi and Silman, Miles and Steele, Michael A. and Stephenson, Nathan L and Straub, Jacob N. and Sun, I-Fang and Sutton, Samantha and Swenson, Jennifer J. and Swift, Margaret and Thomas, Peter A. and Uriarte, Maria and Vacchiano, Giorgio and Veblen, Thomas T. and Whipple, Amy V. and Whitham, Thomas G. and Wion, Andreas P. and Wright, S. Joseph and Zhu, Kai and Zimmerman, Jess K. and Zlotin, Roman and Zywiec, Magdalena and Clark, James S. (2022) Limits to reproduction and seed size-number tradeoffs that shape forest dominance and future recovery. Nature communications, 13 (2381). pp. 1-12. ISSN 2041-1723

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The relationships that control seed production in trees are fundamental to understanding the evolution of forest species and their capacity to recover from increasing losses to drought, fire, and harvest. A synthesis of fecundity data from 714 species worldwide allowed us to examine hypotheses that are central to quantifying reproduction, a foundation for assessing fitness in forest trees. Four major findings emerged. First, seed production is not constrained by a strict trade-off between seed size and numbers. Instead, seed numbers vary over ten orders of magnitude, with species that invest in large seeds producing more seeds than expected from the 1:1 trade-off. Second, gymnosperms have lower seed production than angiosperms, potentially due to their extra investments in protective woody cones. Third, nutrient-demanding species, indicated by high foliar phosphorus concentrations, have low seed production. Finally, sensitivity of individual species to soil fertility varies widely, limiting the response of community seed production to fertility gradients. In combination, these findings can inform models of forest response that need to incorporate reproductive potential.

Item Type:Article
Uncontrolled Keywords:Trees; Forests; Seeds; Reproduction
Subjects:Medical sciences > Biology > Botany
Medical sciences > Biology > Ecology
ID Code:74714
Deposited On:28 Sep 2022 11:14
Last Modified:29 Sep 2022 07:11

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