Mediterranean pine and oak distribution in southern Spain: Is there a mismatch between regeneration and adult distribution?
By I. Urbieta, Luis V. García, M. A. Zavala, T. Marañón. 2011
95 citations recorded by the source corpus.
Questions: What is the current distribution of pine and oak species along environmental gradients in southern Spain? Do pine and oak regeneration niches differ from the environmental niches of adults? Is oak species regeneration favoured under the canopy of pine forests? Location: Forest areas of Andalusia (87600km 2 , southern Spain). Methods: We compiled extensive forest inventory data to explore differences in abundance (basal area, m 2 ha 1 ) patterns of adults (dbh 47.4cm) and regeneration (dbh 7.4cm) of five pine and five oak species. Canonical correspondence analysis (CCA) and generalized linear models were applied to explore species‐environment relationships along climatic, edaphic, topographic and fire-frequency gradients. Results: Both pines and oaks segregated along complex environmental gradients, with pines generally dominating in more severe (colder and drier) environments, while oaks dominated in milder, wetter winter areas. In 40-55% of mature pine stands there was a lack of regeneration in the understorey, while in two oak species (Q. suber and Q. canariensis) 70% of stands did not show regeneration. Pine recruits were found at a higher frequency and abundance under the canopy of their congeners, whereas some oaks (Q. ilex) had greater regeneration under mixed pine‐oak canopies. Conclusions: Climatic limitations and soil properties partly explained the regional distribution of pines and oaks. We found evidence for an upward shift of Q. ilex recruits towards areas with colder conditions in pine forests, which could be explained by a possible facilitative effect of the pine canopy on seedling establishment.
Subfields: Global and Planetary Change, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/29e756ea7f228fdba0d5db1092fa3b920853b62b
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In Global and Planetary Change
In Nature and Landscape Conservation
Citations in the corpus
- Large-scale recruitment limitation in Mediterranean pines: the role of Quercus ilex and forest successional advance as key regional drivers (2014, background): “Notably, localscale studies have frequently reported severe limitations in tree recruitment, which is often especially acute for pine species (Castro et al., 2004; Urbieta et al., 2011; Galiano et al., 2013).”
- Cambial activity, wood formation and sapling survival of Pinus halepensis exposed to different irrigation regimes (2011, background): “…dynamics and summer drought is commonly found to be a major limiting factor both for seedlings and sapling survival, currently observed limitations on regeneration in Mediterranean forests may be exacerbated (Castro et al., 2004; de Luis et al., 2008; Mendoza et al., 2009; Urbieta et al., 2011).”