Is there tree senescence? The fecundity evidence
BOGDZIEWICZ, Michal
Uniwersytet im. Adama Mickiewicza w Poznaniu = Adam Mickiewicz University in Poznań [UAM]
Uniwersytet im. Adama Mickiewicza w Poznaniu = Adam Mickiewicz University in Poznań [UAM]
JULIO CAMARERO, J.
Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] [IPE - CSIC]
Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] [IPE - CSIC]
HILLE RIS LAMBERS, Janneke
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
LEDWON, Mateusz
Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences [PAN]
Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences [PAN]
CLARK, James
Nicholas School of the Environment
Laboratoire des EcoSystèmes et des Sociétés en Montagne [UR LESSEM]
< Réduire
Nicholas School of the Environment
Laboratoire des EcoSystèmes et des Sociétés en Montagne [UR LESSEM]
Langue
en
Article de revue
Ce document a été publié dans
Proceedings of the National Academy of Sciences of the United States of America. 2021-08-24, vol. 118, n° 34
National Academy of Sciences
Résumé en anglais
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 ...Lire la suite >
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.< Réduire
Mots clés en anglais
tree fecundity
tree senescence
tree life history
allometric scaling
crown architecture
Project ANR
Prévision du changement de la biodiversité
Origine
Importé de halUnités de recherche
Publications correspondantes
Affichage des publications liées par titre, auteur, créateur et discipline
-
Linking seed size and number to trait syndromes in trees
BOGDZIEWICZ, Michal; ACUÑA, Marie‐claire Aravena; ANDRUS, Robert ...(Global Ecology and Biogeography. pp. 1-23, 2023)Article de revue -
Linking seed size and number to trait syndromes in trees
BOGDZIEWICZ, Michal; ACUÑA, Marie‐claire Aravena; ANDRUS, Robert ...(Global Ecology and Biogeography. pp. 1-23, 2023)Article de revue -
Globally, tree fecundity exceeds productivity gradients
JOURNÉ, Valentin; ANDRUS, Robert; ARAVENA, Marie-Claire ...(Ecology Letters. vol. 25, n° 6, pp. 1471-1482, 2022-06)Article de revue