Globally, tree fecundity exceeds productivity gradients



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Journé, Valentin and Andrus, Robert and Aravena, Marie-Claire and Ascoli, Davide and Berretti, Roberta and Berveiller, Daniel and Bogdziewicz, Michal and Boivin, Thomas and Bonal Andrés, Raúl and Caignard, Thomas and Calama, Rafael and Camarero, J. J. and Chang-Yang, Chia-Hao and Courbaud, Benoit and Courbet, Francois 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 Maria 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 Kabeya, Daisuke and Kays, Roland and Kitzberger, Thomas and Knops, Johannes M. H. and Kobe, Richard K. and Kunstle, Georges and Lageard, Jonathan G. A. and LaMontagne, Jalene M. 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 Qiu, Tong and Redmond, Miranda D. and Reid, Chantal D. and Rodman, Kyle C. and Rodríguez Sánchez, Francisco and Sanguinetti, Javier D. and Scherer, C. Lane 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 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 Wright, Boyd and Wright, S. Joseph and Zhu, Kai and Zimmerman, Jess K and Zlotin, Roman and Zywiec, Magdalena and Clark, James S. (2022) Globally, tree fecundity exceeds productivity gradients. Ecology Letters, 25 (6). pp. 1471-1482. ISSN 1461-023X, Electronic: 1461-0248

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Lack of tree fecundity data across climatic gradients precludes the analysis of how seed supply contributes to global variation in forest regeneration and biotic interactions responsible for biodiversity. A global synthesis of raw seedproduction data shows a 250-fold increase in seed abundance from cold-dry to warm-wet climates, driven primarily by a 100-fold increase in seed production for a given tree size. The modest (threefold) increase in forest productivity across the same climate gradient cannot explain the magnitudes of these trends. The increase in seeds per tree can arise from adaptive evolution driven by intense species interactions or from the direct effects of a warm, moist climate on tree fecundity. Either way, the massive differences in seed supply ramify through food webs potentially explaining a disproportionate role for species interactions in the wet tropics.

Item Type:Article
Uncontrolled Keywords:Climate; Competition; Forest regeneration; Seed consumption; Species interactions; Tree fecundity
Subjects:Medical sciences > Biology > Botany
Medical sciences > Biology > Ecology
ID Code:74270
Deposited On:02 Sep 2022 11:04
Last Modified:23 Sep 2022 07:58

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