Climbing plants in a temperate rainforest understorey: searching for high light or coping with deep shade?

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dc.contributor.authorValladares, Fernando
dc.contributor.authorGianoli, Ernesto
dc.contributor.authorSaldana, Alfredo
dc.date.accessioned2025-01-21T00:01:04Z
dc.date.available2025-01-21T00:01:04Z
dc.date.issued2011
dc.description.abstractBackground and Aims While the climbing habit allows vines to reach well-lit canopy areas with a minimum investment in support biomass, many of them have to survive under the dim understorey light during certain stages of their life cycle. But, if the growth/survival trade-off widely reported for trees hold for climbing plants, they cannot maximize both light-interception efficiency and shade avoidance (i.e. escaping from the understorey). The seven most important woody climbers occurring in a Chilean temperate evergreen rainforest were studied with the hypothesis that light-capture efficiency of climbers would be positively associated with their abundance in the understorey.
dc.description.abstractMethods Species abundance in the understorey was quantified from their relative frequency and density in field plots, the light environment was quantified by hemispherical photography, the photosynthetic response to light was measured with portable gas-exchange analyser, and the whole shoot light-interception efficiency and carbon gain was estimated with the 3-D computer model Y-plant.
dc.description.abstractKey Results Species differed in specific leaf area, leaf mass fraction, above ground leaf area ratio, light-interception efficiency and potential carbon gain. Abundance of species in the understorey was related to whole shoot features but not to leaf level features such as specific leaf area. Potential carbon gain was inversely related to light-interception efficiency. Mutual shading among leaves within a shoot was very low (<20%).
dc.description.abstractConclusions The abundance of climbing plants in this southern rainforest understorey was directly related to their capacity to intercept light efficiently but not to their potential carbon gain. The most abundant climbers in this ecosystem match well with a shade-tolerance syndrome in contrast to the pioneer-like nature of climbers observed in tropical studies. The climbers studied seem to sacrifice high-light searching for coping with the dim understorey light.
dc.fuente.origenWOS
dc.identifier.doi10.1093/aob/mcr132
dc.identifier.eissn1095-8290
dc.identifier.issn0305-7364
dc.identifier.urihttps://doi.org/10.1093/aob/mcr132
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95371
dc.identifier.wosidWOS:000293300500001
dc.issue.numero2
dc.language.isoen
dc.pagina.final239
dc.pagina.inicio231
dc.revistaAnnals of botany
dc.rightsacceso restringido
dc.subjectLight-capture efficiency
dc.subject3-D canopy architecture modelling
dc.subjectclimbing plants
dc.subjecttemperate evergreen rainforest
dc.subjectshade tolerance
dc.subjectMitraria coccinea
dc.subjectCissus striata
dc.subjectBoquila trifoliolata
dc.subjectHydrangea serratifolia
dc.subjectElytropus chilensis
dc.subjectLuzuriaga radicans
dc.subjectLuzuriaga polyphylla
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleClimbing plants in a temperate rainforest understorey: searching for high light or coping with deep shade?
dc.typeartículo
dc.volumen108
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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