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Título

Species-specific drought effects on fl ower and fruit production in a Mediterranean holm oak forest

Autor Ogaya, Romá; Peñuelas, Josep
Fecha de publicación 2007
EditorOxford University Press
Citación Forestry 80(3) : 351-357 (2007)
ResumenA holm oak forest was exposed to an experimental drought (reduction of 15 per cent soil moisture as predicted for this area for the next decades by General Circulation Models and ecophysiological models) during 7 years to elucidate the reproductive responses of the dominant species Quercus ilex L., Arbutus unedo L. and Phillyrea latifolia L. Soil moisture was partially reduced by plastic strips intercepting rainfall and by ditch exclusion of water runoff. During the period studied, meteorological conditions and soil moisture were continuously monitored, together with fl ower and fruit production in the three dominant species. In Q. ilex and A. unedo, fl ower and specially fruit production were strongly correlated with annual rainfall, but not in P. latifolia. The experimental drought reduced fl ower and fruit production in Q. ilex by 30 per cent and 45 per cent, respectively. Reductions in fl ower and fruit production were not signifi cant in A. unedo and were not observed in P. latifolia. A decrease in production of reproductive structures and the different response of the species studied to a decrease in water availability could induce important changes in the competitive ability of the different species and in the long term in the community species composition and future distribution of these Mediterranean species.
Descripción 7 páginas, 3 figuras, 1 tabla
Versión del editorhttp://dx.doi.org/10.1093/forestry/cpm009
URI http://hdl.handle.net/10261/114793
DOI10.1093/forestry/cpm009
ISSN0015-752X
E-ISSN1464-3626
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