[en] In this work, the climatic responses of three beech (Fagus sylvatica L.) and three oak (Quercus robur L.) tree-ring chronologies in the central Cantabrian region, were analyzed. Regional temperature and precipitation data, and the climatic teleconnection indices of the North Atlantic Oscillation (NAO), were used as climatic predictors. Very similar interannual ring-width variability among chronologies of different species and localities was displayed. Chronologies of the same species and similar altitudes showed the highest cross-correlations, which were significant at widest timescales. Periodic signals of a variety of frequencies that coincided with signals characteristic of NAO indices, were discovered in the chronologies. Between 52 to 64% of growth variance was explained by regional climate, while 13 to 27% was related to monthly NAO indices. High summer temperatures in the year prior to ring formation and low winter temperatures limited beech growth at altitudes over 700 m. Oak radial growth at lower altitudes was limited by high spring temperatures in the previous year and summer drought in the year the ring was formed. Growth of both species displayed negative relationship with winter NAO indices, in the previous year for beech and in the current year for oak. Moreover, oak exhibited a negative correlation with NAO indices in the late summer of previous year. The obtained results suggest that more exhaustive research, regarding the characterization of radial growth and the analysis of its climatic response along the complete Cantabrian region, is required.

[es] En este trabajo se analizaron las respuestas clim&aacute;ticas de tres cronolog&iacute;as de haya (Fagus sylvatica L.) y tres de roble (Quercus robur L.) en la regi&oacute;n central de la Cornisa Cant&aacute;brica. Se utilizaron datos clim&aacute;ticos regionales y el &iacute;ndice de Oscilaci&oacute;n del Atl&aacute;ntico Norte (NAO) como indicativo de la se&ntilde;al macroclim&aacute;tica. Las cronolog&iacute;as presentaron una variabilidad interanual similar entre especies y localidades. Las correlaciones mayores y m&aacute;s extensas en el tiempo se obtuvieron entre cronolog&iacute;as de la misma especie y similar altitud. Las cronolog&iacute;as presentaron se&ntilde;ales de distinta frecuencia coincidentes con se&ntilde;ales caracter&iacute;sticas de los &iacute;ndices NAO. El 52-64% de la variaci&oacute;n del crecimiento fue explicada por el clima regional, mientras que la NAO explic&oacute; un 13-27%. La elevada temperatura estival del a&ntilde;o previo al crecimiento y la baja temperatura invernal fueron factores limitantes para el haya por encima de 700 m de altitud. El crecimiento del roble a baja altitud estuvo limitado por la elevada temperatura primaveral del a&ntilde;o previo y por la sequ&iacute;a estival del a&ntilde;o de crecimiento. Ambas especies mostraron una relaci&oacute;n negativa con los &iacute;ndices NAO invernales, del a&ntilde;o previo al crecimiento en el haya y del mismo a&ntilde;o de crecimiento en el roble. En el roble se manifest&oacute; adem&aacute;s una relaci&oacute;n negativa con la NAO de final del verano del a&ntilde;o previo. Estos resultados sugieren la necesidad de investigaciones m&aacute;s extensas sobre la caracterizaci&oacute;n del crecimiento radial y su respuesta clim&aacute;tica a lo largo de la Cornisa Cant&aacute;brica.