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dc.contributor.authorAlla, A. Q.-
dc.contributor.authorCamarero, Jesús Julio-
dc.contributor.authorPalacio, Sara-
dc.contributor.authorMontserrat-Martí, Gabriel-
dc.date.accessioned2014-01-21T12:22:07Z-
dc.date.available2014-01-21T12:22:07Z-
dc.date.issued2013-
dc.identifierdoi: 10.1007/s00468-013-0885-x-
dc.identifierissn: 0931-1890-
dc.identifiere-issn: 1432-2285-
dc.identifier.citationTrees - Structure and Function 27(5): 1375- 1386 (2013)-
dc.identifier.urihttp://hdl.handle.net/10261/89685-
dc.description.abstractUnderstanding the relationships between bud size and position and bud fate through time is crucial for identifying and subsequently modeling the mechanisms underlying tree architecture. However, there is a lack of information on how bud size drives crown architectural patterns in coexisting tree species. We studied bud demography in two coexisting Mediterranean oak species with contrasting leaf habit (Quercus ilex, evergreen; Q. faginea, deciduous). The main objective was to analyse the effect of bud size on the fate of buds with different positions along the shoot (apical, leaf axillary and scale-cataphyll axillary buds). The number, length and position of all buds and stems were recorded in marked branches during 4 years. Study species presented different strategies in bud production and lifespan. The evergreen species showed greater mortality rate than the deciduous one, which produced larger buds. Bud size and position were highly related since apical buds where longer than axillary ones and bud length declined basipetally along the stem. Apical buds had also higher chances of bursting than axillary ones. Within positions, longer buds presented a higher probability of bursting than shorter ones, although no absolute size threshold was found below which bud bursting was impaired. In Q. ilex, four-year-old buds were still viable and able to burst, whereas in Q. faginea practically all buds burst in their first year or died soon after. Such different bud longevities may indicate contrasting strategies in primary growth between both species. Q. ilex is able to accumulate viable buds for several ages, whereas Q. faginea seems to rely on the production of large current-year buds with high bursting probability under favourable environmental conditions. © 2013 Springer-Verlag Berlin Heidelberg.-
dc.description.sponsorshipA.Q.A., J.J.C. and S.P. acknowledge the support of MAEC-AECID, ARAID and the Spanish Ministerio de Ciencia e Innovación (Juan de la Cierva subprogram), respectively. This work was supported by the Spanish Ministerio de Ciencia e Innovación and FEDER (grant numbers CGL2008-04847-C02-01, CGL2010-16880 BOS, CGL2011-26654 BOS). We thank the collaborative support of the Globimed network (http://​www.​globimed.​net) and the Spanish “Agencia Estatal de Meterorología” for providing climatic data. The authors are grateful to Guillermo Bueno for statistical advice, Jorge Albuixech for help during field work, an anonymous Communicating Editor and two anonymous reviewers for helpful comments on an earlier version of the manuscript.-
dc.language.isoeng-
dc.publisherSpringer-
dc.rightsclosedAccess-
dc.subjectBud position-
dc.subjectBud size-
dc.subjectBudburst-
dc.subjectQuercus ilex subsp. ballota-
dc.subjectQuercus faginea-
dc.subjectBud demography-
dc.titleRevisiting the fate of buds: Size and position drive bud mortality and bursting in two coexisting Mediterranean Quercus species with contrasting leaf habit-
dc.typeArtículo-
dc.identifier.doi10.1007/s00468-013-0885-x-
dc.relation.publisherversionhttp://dx.doi.org/10.1007/s00468-013-0885-x-
dc.date.updated2014-01-21T12:22:08Z-
dc.description.versionPeer Reviewed-
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