2017
DOI: 10.1111/btp.12425
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A tropical epiphytic orchid uses a low‐light interception strategy in a spatially heterogeneous light environment

Abstract: Light is considered a non‐limiting factor for vascular epiphytes. Nevertheless, an epiphyte's access to light may be limited by phorophyte shading and the spatio‐temporal environmental patchiness characteristic of epiphytic habitats. We assessed the extent to which potential light interception in Rodriguezia granadensis, an epiphytic orchid, is determined by individual factors (plant size traits and leaf traits), or environmental heterogeneity (light patchiness) within the crown of the phorophyte, or both. We … Show more

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Cited by 9 publications
(12 citation statements)
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“…All these recordings were performed by placing the device parallel to the leaf surface during days without wind. We calculated STAR using the package ‘leafSTAR’ in R v3.4.1 ( Ventre-Lespiaucq and Santamaría, 2017 ), which implements the equations in Escribano-Rocafort et al (2014) . We estimated the leaf tilt angle relative to the horizontal plane (0° horizontal, 90° vertical) using leaf pitch and roll angles (Eq.…”
Section: Methodsmentioning
confidence: 99%
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“…All these recordings were performed by placing the device parallel to the leaf surface during days without wind. We calculated STAR using the package ‘leafSTAR’ in R v3.4.1 ( Ventre-Lespiaucq and Santamaría, 2017 ), which implements the equations in Escribano-Rocafort et al (2014) . We estimated the leaf tilt angle relative to the horizontal plane (0° horizontal, 90° vertical) using leaf pitch and roll angles (Eq.…”
Section: Methodsmentioning
confidence: 99%
“…In plant light interception studies, the temporal dimension at short-term scales is largely acknowledged but frequently summarized in time-integrated measurements ( Baldocchi and Collineau, 1994 ). As an unintended consequence, light interception at shorter time scales, such as the diurnal scale, have received less attention (but see, Valladares and Pugnaire, 1999 ; Granado-Yela et al, 2011 ; Escribano-Rocafort et al, 2016 ; Ventre-Lespiaucq et al, 2017 ). This is surprising since it is well-known that diurnal variation in light interception has consequences for circadian physiological processes such as photosynthesis and evapotranspiration ( Valladares and Niinemets, 2007 ).…”
Section: Introductionmentioning
confidence: 99%
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“…When light intensity exceeds the amount necessary for photosynthesis, e.g., after seasonal leaf-shedding by the host tree in a tropical dry forest, epiphytic orchids in the newly exposed canopy show considerable photoprotective plasticity to cope with such stress (Rosa-Manzano et al., 2015). Furthermore, in canopies with a high spatio-temporal heterogeneity in light environments, orchids may display a strategy for light interception that is commonly observed for plants that typically grow in low-light environments (Ventre-Lespiaucq et al., 2017).…”
Section: Light Requirement and Adaption In Orchidsmentioning
confidence: 99%
“…A range of tree traits may define habitat quality for epiphyte colonization and accumulation. For example, trunk diameter (e.g., Sáyago et al, 2013) and crown size (e.g., Ventre‐Lespiaucq et al, 2017) may positively influence the number and abundance of epiphyte species. Large trees, which tend to be older (O’Brien et al, 1995; Zotz and Vollrath, 2003) and have received epiphyte seed rain for longer periods than young trees.…”
mentioning
confidence: 99%