Regional phenological models for forecasting the start and peak of the Quercus pollen season in Spain

H. García-Mozo, I. Chuine, M. J. Aira, J. Belmonte, D. Bermejo, C. Díaz de la Guardia, B. Elvira, M. Gutiérrez, J. Rodríguez-Rajo, L. Ruiz, M. M. Trigo, R. Tormo, R. Valencia, C. Galán

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Abstract

The study sought to achieve the broadest possible spatial and temporal predictions by examining genetic variations in the timing of flowering between populations of the Iberian Quercus species using pollen data from 15 sites in Spain. The specific objective of the study was to develop and fit regional phenological model to predict the flowering start and flowering peak of Quercus species in the Iberian Peninsula by ascertaining whether potentially significant genetic variations in the timing of flowering required different phenological models or if, on the contrary, regional models for several localities can explain the variability detected in Quercus phenology in Spain. Model estimates did not vary greatly as a function of environment within similar climate areas where the same species grew; thus, model estimates of the temperature response of individuals growing in similar climate areas did not differ significantly. The percentage of variance explained by models was greater in models fitted with local data (75-97%). Nevertheless, acceptable results were also obtained using regional models (55-85%). The lowest value was found for the Simplifed Model including all Spanish sites together (51%). © 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)372-380
JournalAgricultural and Forest Meteorology
Volume148
Issue number3
DOIs
Publication statusPublished - 13 Mar 2008

Keywords

  • Aerobiology
  • Modelling
  • Oak forest
  • Phenology
  • Pollen
  • Quercus

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