Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/122174
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Juvenile-adult tree associations in a continental Mediterranean ecosystem: No evidence for sustained and general facilitation at increased aridity |
Autor: | Granda Fernández, Elena ; Escudero, Adrián; De La Cruz, M.; Valladares Ros, Fernando CSIC ORCID | Fecha de publicación: | 9-sep-2011 | Editor: | John Wiley & Sons | Citación: | Journal of Vegetation Science 23(1): 164-175 (2012) | Resumen: | Question: How do tree species identity, microhabitat and water availability affect inter- and intra-specific interactions between juvenile and adult woody plants? Location: Continental Mediterranean forests in Alto Tajo Natural Park, Guadalajara, Spain. Methods: A total of 2066 juveniles and adults of four co-occurring tree species were mapped in 17 plots. The frequency of juveniles at different microhabitats and water availability levels was analysed using log-linear models. We used nearest-neighbour contingency table analysis of spatial segregation and J-functions to describe the spatial patterns. Results: We found a complex spatial pattern that varied according to species identity and microhabitat. Recruitment was more frequent in gaps for Quercus ilex, while the other three species recruited preferentially under shrubs or trees depending on the water availability level. Juveniles were not spatially associated to conspecific adults, experiencing segregation from them in many cases. Spatial associations, both positive and negative, were more common at higher water availability levels. Conclusions: Our results do not agree with expectations from the stress-gradient hypothesis, suggesting that positive interactions do not increase in importance with increasing aridity in the study ecosystem. Regeneration patterns are species-specific and depend on microhabitat characteristics and dispersal strategies. In general, juveniles do not look for conspecific adult protection. This work contributes to the understanding of species co-existence, proving the importance of considering a multispecies approach at several plots to overcome limitations of simple pair-wise comparisons in a limited number of sites. | Versión del editor: | http://dx.doi.org/10.1111/j.1654-1103.2011.01343.x | URI: | http://hdl.handle.net/10261/122174 | DOI: | 10.1111/j.1654-1103.2011.01343.x | Identificadores: | doi: 10.1111/j.1654-1103.2011.01343.x issn: 1100-9233 e-issn: 1654-1103 |
Aparece en las colecciones: | (MNCN) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
23
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
22
checked on 19-feb-2024
Page view(s)
323
checked on 24-abr-2024
Download(s)
103
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.