Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.2106130118 |
Is there tree senescence? The fecundity evidence | |
Tong Qiu; Marie-Claire Aravena; Robert Andrus; Davide Ascoli; Yves Bergeron; Roberta Berretti; Michal Bogdziewicz; Thomas Boivin; Raul Bonal; Thomas Caignard; Rafael Calama; J. Julio Camarero; Connie J. Clark; Benoit Courbaud; Sylvain Delzon; Sergio Donoso Calderon; William Farfan-Rios; Catherine A. Gehring; Gregory S. Gilbert; Cathryn H. Greenberg; Qinfeng Guo; Janneke Hille Ris Lambers; Kazuhiko Hoshizaki; Ines Ibanez; Valentin Journé; Christopher L. Kilner; Richard K. Kobe; Walter D. Koenig; Georges Kunstler; Jalene M. LaMontagne; Mateusz Ledwon; James A. Lutz; Renzo Motta; Jonathan A. Myers; Thomas A. Nagel; Chase L. Nuñez; Ian S. Pearse; Łukasz Piechnik; John R. Poulsen; Renata Poulton-Kamakura; Miranda D. Redmond; Chantal D. Reid; Kyle C. Rodman; C. Lane Scher; Harald Schmidt Van Marle; Barbara Seget; Shubhi Sharma; Miles Silman; Jennifer J. Swenson; Margaret Swift; Maria Uriarte; Giorgio Vacchiano; Thomas T. Veblen; Amy V. Whipple; Thomas G. Whitham; Andreas P. Wion; S. Joseph Wright; Kai Zhu; Jess K. Zimmerman; Magdalena Żywiec; James S. Clark | |
2021-08-24 | |
发表期刊 | Proceedings of the National Academy of Sciences |
出版年 | 2021 |
英文摘要 | 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. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335998 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Tong Qiu,Marie-Claire Aravena,Robert Andrus,et al. Is there tree senescence? The fecundity evidence[J]. Proceedings of the National Academy of Sciences,2021. |
APA | Tong Qiu.,Marie-Claire Aravena.,Robert Andrus.,Davide Ascoli.,Yves Bergeron.,...&James S. Clark.(2021).Is there tree senescence? The fecundity evidence.Proceedings of the National Academy of Sciences. |
MLA | Tong Qiu,et al."Is there tree senescence? The fecundity evidence".Proceedings of the National Academy of Sciences (2021). |
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