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dc.contributor.authorSánchez Pinillos, Martina
dc.contributor.authorAméztegui González, Aitor
dc.contributor.authorKitzberger, Thomas
dc.contributor.authorColl Mir, Lluís
dc.description.abstractThe persistence of non-serotinous pines in Mediterranean forests can be threatened by climate-mediated changes in fire regimes that may favor the dominance of resprouters or other fire-adapted species. Recovery of non-serotinous pines after large wildfires is often determined by their ability to grow under the canopy of promptly established resprouters. Mechanisms of facilitation or competition between resprouters and pines will thus have a profound effect on forest dynamics. We examined here the effect of neighboring oak resprouts on Pinus nigra Arn. ssp. salzmannii saplings 18 years after a wildfire. We determined the net outcome of interactions between oaks and pines and how they vary with the life stage and size of the interacting plants or the environmental conditions. We did not find any net facilitative effects of oaks on pine sapling growth. The sensitivity of pines to neighbors varied markedly with pine size, and to a lesser extent, with water availability during the growing season. Our findings suggest a self-reinforcing hierarchical process by which early-dispersed seedlings growing in low-competitive microsites can grow faster, mitigating neighboring competition in the later stage of canopy closure. These results entail a potentially critical role of management practices to promote post-fire recovery of non-serotinous pines under expected changing conditions of disturbance regimes.
dc.description.sponsorshipThis study was funded by MINECO via EST_RES project (AGL2015-70425-R) and the EC through the ERA-NET Foresterra project INFORMED (grant number: 29183). MINECO provided MSP with support through a predoctoral contract (BES-2013-063019) and a mobility fellowship (EEBB-I-17-12279). AA was supported by MINECO through a Juan de la Cierva fellowship (FJCI-2014-20739). This research is a contribution to the CERCA Programme of the Generalitat de Catalunya. We thank two anonymous reviewers for their constructive comments.
dc.relation.isformatofVersió postprint del document publicat a:
dc.relation.ispartofForest Ecology and Management, 2018, vol. 429, p. 300-307
dc.rightscc-by-nc-nd (c) Elsevier, 2018
dc.subjectPlant-plant interactions
dc.subjectWater limitation
dc.subjectMixed Mediterranean forest
dc.titleRelative size to resprouters determines post-fire recruitment of non-serotinous pines

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cc-by-nc-nd (c) Elsevier, 2018
Except where otherwise noted, this item's license is described as cc-by-nc-nd (c) Elsevier, 2018