title Which matters most for the formation of intra-annual density fluctuations in Pinus pinaster: age or size?
authors Campelo, F; Vieira, J; Battipaglia, G; de Luis, M; Nabais, C; Freitas, H; Cherubini, P
author full name Campelo, Filipe; Vieira, Joana; Battipaglia, Giovanna; de Luis, Martin; Nabais, Cristina; Freitas, Helena; Cherubini, Paolo
nationality internacional
language English
document type Article
author keywords Ecological wood anatomy; Intra-annual density fluctuation; Maritime pine; Mediterranean climate; Standardization
abstract A new method is pro posed to standardize chronologies of intra-annual density fluctuations to improve their intra-annual climatic signal. In the Mediterranean area, intra-annual density fluctuations (IADFs) are triggered by short-term climatic variations during the growing season. It is known that the formation of these anatomical structures is dependent on age and size, which can represent a problem during the extraction of the environmental signal from IADF chronologies. We present a new method using a two-step approach to remove the effect of tree-ring width from IADF chronologies. The climatic signal of IADF chronologies obtained by the proposed method was compared with previous methods, using 160 Pinus pinaster tree cores from an even-aged stand on the west coast of Portugal. Our results show that the climatic signal of IADF chronologies was strongly affected by the standardization method used, and that it could be improved by removing the effect of the predisposing factors (cambial age and tree-ring width) on IADF formation. Moreover, additional climatic information (previous winter precipitation) was only revealed when the effect of tree-ring width was removed from IADF series. Finally, we propose that this new method should be tested for other species and across larger geographical areas to confirm its capacity to remove noise from IADF chronologies and to improve their intra-annual climatic signal.
author address [Campelo, Filipe; Vieira, Joana; Nabais, Cristina; Freitas, Helena] Univ Coimbra, Dept Life Sci, CFE, P-3000456 Coimbra, Portugal; [Battipaglia, Giovanna] Univ Naples 2, Dept Environm Biol & Pharmaceut Sci & Technol, I-81100 Caserta, Italy; [Battipaglia, Giovanna] Univ Montpellier 2, Ctr Bioarchaeol & Ecol, Inst Bot, Ecole Prat Hautes Etudes PALECO EPHE, F-34090 Montpellier, France; [de Luis, Martin] Univ Zaragoza, Dept Geog & Reg Planning, Zaragoza 50009, Spain; [Cherubini, Paolo] WSL Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
reprint address Campelo, F (reprint author), Univ Coimbra, Dept Life Sci, CFE, P-3000456 Coimbra, Portugal.
e-mail address fcampelo@ci.uc.pt
funding agency and grant number Fundacao para a Ciencia e a Tecnologia, Ministerio da Educacao e Ciencia (FCT); Compete [PTDC/AAC-AMB/111675/2009]; FCT [SFRH/BPD/47822/2008]; POPH (Portuguese Operational Human Potential Program); QREN Portugal (Portuguese National Strategic Reference Framework); Spanish Ministry of Education and Science; FEDER program [CGL2012-31668]
funding text This study was supported by the Fundacao para a Ciencia e a Tecnologia, Ministerio da Educacao e Ciencia (FCT) co-financed by Compete, through the project PTDC/AAC-AMB/111675/2009. Filipe Campelo was supported by a postdoctoral research grant (SFRH/BPD/47822/2008) from FCT with funds from POPH (Portuguese Operational Human Potential Program) and QREN Portugal (Portuguese National Strategic Reference Framework). Martin de Luis was funded by Spanish Ministry of Education and Science co-funded by FEDER program (CGL2012-31668). This study was conducted in the frame of the COST Action STReESS (FP1106). The authors thank the communicating editor and two anonymous reviewers for helpful comments and suggestions on an earlier version of the manuscript.
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cited reference count 43
publisher SPRINGER
publisher city NEW YORK
publisher address 233 SPRING ST, NEW YORK, NY 10013 USA
issn 0931-1890
29-character source abbreviation TREES-STRUCT FUNCT
iso source abbreviation Trees-Struct. Funct.
publication date FEB
year published 2015
volume 29
issue 1
beginning page 237
ending page 245
digital object identifier (doi) 10.1007/s00468-014-1108-9
page count 9
web of science category Forestry
subject category Forestry
document delivery number AZ8FZ
unique article identifier WOS:000348451800022
CFE authors
Cristina Nabais
Filipe Campelo
Helena Freitas
Joana Vieira