Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application

Quero Pérez, José Luis; Gómez Aparicio, Lorena; Zamora Rodríguez, Regino; Maestre Gil, Fdo. T.; Ministerio de Educación, Cultura y Deporte (España)

Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application

10 pages, 3 figures, 3 tables, 55 references.

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Bibliographic Details
Main Authors:	Quero Pérez, José Luis, Gómez Aparicio, Lorena, Zamora Rodríguez, Regino, Maestre Gil, Fdo. T.
Other Authors:	Ministerio de Educación, Cultura y Deporte (España)
Format:	artículo biblioteca
Language:	English
Published:	Elsevier 2008-10
Subjects:	Acer opalus spp. granatense, Mediterranean mountain, Ontogenetic shift, Regeneration niche, Tree regeneration,
Online Access:	http://hdl.handle.net/10261/47981 http://dx.doi.org/10.13039/501100003176 http://dx.doi.org/10.13039/501100006393
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id	dig-irnas-es-10261-47981
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spelling	dig-irnas-es-10261-479812018-09-11T09:58:37Z Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application Quero Pérez, José Luis Gómez Aparicio, Lorena Zamora Rodríguez, Regino Maestre Gil, Fdo. T. Ministerio de Educación, Cultura y Deporte (España) Universidad de Granada Acer opalus spp. granatense Mediterranean mountain Ontogenetic shift Regeneration niche Tree regeneration 10 pages, 3 figures, 3 tables, 55 references. Most of our knowledge regarding ontogenetic niche shifts in plants has been derived from studies involving only two or unconnected life stages. Approaches covering a broader range of different life stages are still needed to fully understand the implications of ontogenetic niche shifts for plant regeneration dynamics. We investigated ontogenetic shifts in the endangered Mediterranean tree species Acer opalus ssp. granatense (A. opalus) comparing the environmental characteristics of individuals of different ages with those of a random sample of available microsites. In addition, since herbivory could be a limiting factor, herbivory damage was quantified. Differences in environmental characteristics between locations of individual plants and randomly selected points became larger with plant age, suggesting that the regeneration niche of A. opalus shifts during ontogeny, undergoing a contraction. The presence of shrubs and adult trees, the depth of the litter layer, and herbivory were the main factors influencing these changes. A. opalus can germinate in all available microhabitats its seeds can reach, but saplings establish and grow only in a subset of microhabitats, which represent a change in tolerance to extrinsic factors. Old saplings establish under the canopy of shrubs, far away from tree cover that could block light required in the oldest stage. Therefore, temporal changes in the nature and strength of plant–plant interactions are also occurring. The ecological concept of niche shifts reveals the microsites with higher probabilities of long-term sapling survival of A. opalus: shrub cover involves an array of environmental changes crucial for the successful establishment of A. opalus saplings under stressful Mediterranean conditions, from microhabitat amelioration to herbivory protection. This study was supported by the Grant FPI-MEC to JLQ (BES-2003-1716), and by the coordinated Spanish CICYT projects HETEROMED (REN2002-04041) and DINAMED (CGL2005-05830). LGA was supported by a postdoctoral fellowship from the University of Granada and by a Fullbright postdoctoral fellowship (FU2004-1288) from the Spanish Ministerio de Educación y Ciencia (MEC). FTM was supported by Fullbright (FU2003-0398) and Ramón y Cajal research fellowships from MEC. This research is part of the REDBOME (http://www.ugr.es/~redbome/) and GLOBIMED (http://www.globimed.net) networks on forest ecology. Peer reviewed 2012-04-09T09:59:44Z 2012-04-09T09:59:44Z 2008-10 artículo http://purl.org/coar/resource_type/c_6501 Basic and Applied Ecology 9(6): 635–644 (2008) 1439-1791 http://hdl.handle.net/10261/47981 10.1016/j.baae.2007.06.012 http://dx.doi.org/10.13039/501100003176 http://dx.doi.org/10.13039/501100006393 en http://dx.doi.org/10.1016/j.baae.2007.06.012 open Elsevier
institution	IRNAS ES
collection	DSpace
country	España
countrycode	ES
component	Bibliográfico
access	En linea
databasecode	dig-irnas-es
tag	biblioteca
region	Europa del Sur
libraryname	Biblioteca del IRNAS España
language	English
topic	Acer opalus spp. granatense Mediterranean mountain Ontogenetic shift Regeneration niche Tree regeneration Acer opalus spp. granatense Mediterranean mountain Ontogenetic shift Regeneration niche Tree regeneration
spellingShingle	Acer opalus spp. granatense Mediterranean mountain Ontogenetic shift Regeneration niche Tree regeneration Acer opalus spp. granatense Mediterranean mountain Ontogenetic shift Regeneration niche Tree regeneration Quero Pérez, José Luis Gómez Aparicio, Lorena Zamora Rodríguez, Regino Maestre Gil, Fdo. T. Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application
description	10 pages, 3 figures, 3 tables, 55 references.
author2	Ministerio de Educación, Cultura y Deporte (España)
author_facet	Ministerio de Educación, Cultura y Deporte (España) Quero Pérez, José Luis Gómez Aparicio, Lorena Zamora Rodríguez, Regino Maestre Gil, Fdo. T.
format	artículo
topic_facet	Acer opalus spp. granatense Mediterranean mountain Ontogenetic shift Regeneration niche Tree regeneration
author	Quero Pérez, José Luis Gómez Aparicio, Lorena Zamora Rodríguez, Regino Maestre Gil, Fdo. T.
author_sort	Quero Pérez, José Luis
title	Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application
title_short	Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application
title_full	Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application
title_fullStr	Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application
title_full_unstemmed	Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application
title_sort	shifts in the regeneration niche of an endangered tree (acer opalus ssp.granatense) during ontogeny: using an ecological concept for application
publisher	Elsevier
publishDate	2008-10
url	http://hdl.handle.net/10261/47981 http://dx.doi.org/10.13039/501100003176 http://dx.doi.org/10.13039/501100006393
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Shifts in the regeneration niche of an endangered tree (Acer opalus ssp.granatense) during ontogeny: Using an ecological concept for application

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