气候变化领域集成服务门户(CCPortal): Is there tree senescence? The fecundity evidence

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DOI	10.1073/pnas.2106130118
	Is there tree senescence? The fecundity evidence
	Qiu T.; Aravena M.-C.; Andrus R.; Ascoli D.; Bergeron Y.; Berretti R.; Bogdziewicz M.; Boivin T.; Bonal R.; Caignard T.; Calama R.; Camarero J.J.; Clark C.J.; Courbaud B.; Delzon S.; Calderon S.D.; Farfan-Rios W.; Gehring C.A.; Gilbert G.S.; Greenberg C.H.; Guo Q.; Lambers J.H.R.; Hoshizaki K.; Ibanez I.; Journé V.; Kilner C.L.; Kobe R.K.; Koenig W.D.; Kunstler G.; LaMontagne J.M.; Ledwon M.; Lutz J.A.; Motta R.; Myers J.A.; Nagel T.A.; Nuñez C.L.; Pearse I.S.; Piechnik Ł.; Poulsen J.R.; Poulton-Kamakura R.; Redmond M.D.; Reid C.D.; Rodman K.C.; Scher C.L.; van Marle H.S.; Seget B.; Sharma S.; Silman M.; Swenson J.J.; Swift M.; Uriarte M.; Vacchiano G.; Veblen T.T.; Whipple A.V.; Whitham T.G.; Wion A.P.; Wright S.J.; Zhu K.; Zimmerman J.K.; Zywiec M.; Clark J.S.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:34
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. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Allometric scaling; Crown architecture; Tree fecundity; Tree life history; Tree senescence
语种	英语
scopus关键词	allometry; fertility; forest; human; life history; review; senescence; tree of life; article
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238422
作者单位	Nicholas School of the Environment, Duke University, Durham, NC 27708, United States; Universidad de Chile, Facultad de Ciencias Forestales y de la Conservación de la Naturaleza (FCFCN), La Pintana, Santiago, 8820808, Chile; Department of Geography, University of Colorado, Boulder, CO 80309, United States; Department of Agriculture, Forest and Food Sciences, University of Torino, TO, Grugliasco, 10095, Italy; Forest Research Institute, University of Quebec in Abitibi-Temiscamingue, Rouyn-Noranda, QC J9X 5E4, Canada; Department of Biological Sciences, University of Quebec in Abitibi-Temiscamingue, Rouyn-Noranda, QC H2L 2C4, Canada; Department of Systematic Zoology, Faculty of Biology, Adam Mickiewicz University, Poznan, 61-614, Poland; L'Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Ecologie des Forets Mediterranennes, Avignon, 84000, France; Department of Biodiversity, Ecology and Evolution, Complutense University of Madrid, Madrid, 28040, Spain; Univers...
推荐引用方式 GB/T 7714	Qiu T.,Aravena M.-C.,Andrus R.,et al. Is there tree senescence? The fecundity evidence[J],2021,118(34).
APA	Qiu T..,Aravena M.-C..,Andrus R..,Ascoli D..,Bergeron Y..,...&Clark J.S..(2021).Is there tree senescence? The fecundity evidence.Proceedings of the National Academy of Sciences of the United States of America,118(34).
MLA	Qiu T.,et al."Is there tree senescence? The fecundity evidence".Proceedings of the National Academy of Sciences of the United States of America 118.34(2021).