Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorGomez-Aparicio, Lorenaen_UK
dc.contributor.authorPerez-Ramos, Ignacio Men_UK
dc.contributor.authorMendoza, Ireneen_UK
dc.contributor.authorMatias, Luisen_UK
dc.contributor.authorQuero, Jose Luisen_UK
dc.contributor.authorCastro, Jorgeen_UK
dc.contributor.authorZamora, Reginoen_UK
dc.contributor.authorMaranon, Teodoroen_UK
dc.description.abstractUnderstanding seedling performance across resource gradients is crucial for defining the regeneration niche of plant species under current environmental conditions and for predicting potential changes under a global change scenario. A 2-year field experiment was conducted to determine how seedling survival and growth of two evergreen and two deciduous Quercus species vary along gradients of light and soil properties in two Mediterranean forests with contrasting soils and climatic conditions. Half the seedlings were subjected to an irrigation treatment during the first year to quantify the effects on performance of an alteration in the summer drought intensity. Linear and non-linear models were parameterized and compared to identify major resources controlling seedling performance. We found both site-specific and general patterns of regeneration. Strong site-specificity was found in the identity of the best predictors of seedling survival: survival decreased linearly with increasing light (i.e. increasing desiccation risk) in the drier site, whereas it decreased logistically with increasing spring soil water content (i.e. increasing waterlogging risk) in the wetter site. We found strong empirical support for multiple resource limitation at the drier site, the response to light being modulated by the availability of soil resources (water and P). Evidence for regeneration niche partitioning among Quercus species was only found at the wetter site. However, at both sites Quercus species shared the same response to summer drought alleviation through water addition: increased first-year survival but not final survival (i.e. after two years). This suggests that extremely dry summers (i.e. the second summer in the experiment) can cancel out the positive effects of previous wetter summers. Therefore, an increase in the intensity and frequency of summer drought with climate change might cause a double negative impact on Quercus regeneration, due to a general reduction in survival probability and the annulment of the positive effects of (infrequent) 'wet' years. Overall, results presented in this study are a major step towards the development of a mechanistic model of Mediterranean forest dynamics that incorporates the idiosyncrasies and generalities of tree regeneration in these systems, and that allow simulation and prediction of the ecological consequences of resource level alterations due to global change.en_UK
dc.relationGomez-Aparicio L, Perez-Ramos IM, Mendoza I, Matias L, Quero JL, Castro J, Zamora R & Maranon T (2008) Oak seedling survival and growth along resource gradients in Mediterranean forests: Implications for regeneration in current and future environmental scenarios. Oikos, 117 (11), pp. 1683-1699.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.titleOak seedling survival and growth along resource gradients in Mediterranean forests: Implications for regeneration in current and future environmental scenariosen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[2008_Gómez-Aparicio_Oikos.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationInstituto de Recursos Naturalesen_UK
dc.contributor.affiliationInstituto de Recursos Naturalesen_UK
dc.contributor.affiliationUniversidad de Granada, Spainen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversidad Nacional de Córdobaen_UK
dc.contributor.affiliationUniversidad de Granada, Spainen_UK
dc.contributor.affiliationUniversidad de Granada, Spainen_UK
dc.contributor.affiliationInstituto de Recursos Naturalesen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorGomez-Aparicio, Lorena|en_UK
local.rioxx.authorPerez-Ramos, Ignacio M|en_UK
local.rioxx.authorMendoza, Irene|en_UK
local.rioxx.authorMatias, Luis|en_UK
local.rioxx.authorQuero, Jose Luis|en_UK
local.rioxx.authorCastro, Jorge|en_UK
local.rioxx.authorZamora, Regino|en_UK
local.rioxx.authorMaranon, Teodoro|en_UK
local.rioxx.projectInternal Project|University of Stirling|
Appears in Collections:Biological and Environmental Sciences Journal Articles

Files in This Item:
File Description SizeFormat 
2008_Gómez-Aparicio_Oikos.pdfFulltext - Published Version257.93 kBAdobe PDFUnder Permanent Embargo    Request a copy

This item is protected by original copyright

Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

The metadata of the records in the Repository are available under the CC0 public domain dedication: No Rights Reserved

If you believe that any material held in STORRE infringes copyright, please contact providing details and we will remove the Work from public display in STORRE and investigate your claim.