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[Dataset:] Photosynthesis data belonging to publication 'In situ temperature response of photosynthesis of 42 tree and liana species in the canopy of two Panamanian lowland tropical forests with contrasting rainfall regimes'

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dc.contributor.author Slot, Martijn
dc.contributor.author Winter, Klaus
dc.contributor.author Slot, Martijn en
dc.contributor.author Winter, Klaus en
dc.date.accessioned 2017-02-06T16:15:43Z
dc.date.available 2017-02-06T16:15:43Z
dc.date.issued 2017
dc.identifier.citation Slot, Martijn and Winter, Klaus. 2017. [Dataset] "<em>Photosynthesis data belonging to publication &#39;In situ temperature response of photosynthesis of 42 tree and liana species in the canopy of two Panamanian lowland tropical forests with contrasting rainfall regimes&#39;</em>." Distributed by Smithsonian Tropical Research Institute. <a href="https://doi.org/10.5479/data_stri/10088/30581">https://doi.org/10.5479/data_stri/10088/30581</a> en
dc.identifier.uri https://hdl.handle.net/10088/30581
dc.description DOY: Day of year. Site: PNM: Parque Natural Metropolitano, FTS: Fort Sherman (= Parque Nacional San Lorenzo). Form: Tree or Liana. Species: Only genus name give. See paper for full species and family names. Rep: Replicate individual . Leaf: 100 = pooled data (every leaf measured once) replicate tree 1, 102 = pooled data replicate tree 2. Time: Time of day in a metric 0-24 scale. Tleaf: °C. Photo: Photosynthetic rate (μmol CO2 m-2 s-1). Cond: Conductance to H2O (mol H2O m-2 s-1). Ci: Intercellular CO2 concentration (μmol CO2 mol-1). Trmmol: mmol H2O m-2 s-1. VpdL: Vapor pressure deficit based on Leaf temp (kPa). Tair: °C. TBlk: °C. CO2R: Reference cell CO2 (μmol CO2 mol-1). CiCa: Intercellular CO2 / Ambient CO2. CO2S: Sample cell CO2 (μmol CO2 mol-1). en_US
dc.description.abstract Abstract to the publication from this dataset: • Tropical forests contribute significantly to the global carbon cycle, but little is known about the temperature response of photosynthetic carbon uptake in tropical species, and how this varies within and across forests. • We determined in situ photosynthetic temperature-response curves for upper-canopy leaves of 42 tree and liana species from two tropical forests in Panama with contrasting rainfall regimes. Based on seedling studies we hypothesized that species with high photosynthetic capacity—light-demanding, fast-growing species—would have a higher temperature optimum of photosynthesis (TOpt) than species with low photosynthetic capacity—shade-tolerant, slow-growing species—and that, therefore, TOpt would scale with species’ position on the slow-fast continuum of plant functional traits. • TOpt was remarkably similar across species, regardless of species’ photosynthetic capacity and other plant functional traits. Community-average TOpt was almost identical to mean maximum daytime temperature, which was higher at the dry forest. Photosynthesis above TOpt appeared to be more strongly limited by stomatal conductance at the dry forest than at the wet forest. • The observation that all species in a community shared similar TOpt values suggests that photosynthetic performance is optimized under current temperature regimes. These results should facilitate scaling up photosynthesis in relation to temperature from leaf to stand level in species-rich tropical forests. en_US
dc.description.abstract Abstract to the publication from this dataset:<br/> Tropical forests contribute significantly to the global carbon cycle, but little is known about the temperature response of photosynthetic carbon uptake in tropical species, and how this varies within and across forests. <br/> We determined in situ photosynthetic temperature-response curves for upper-canopy leaves of 42 tree and liana species from two tropical forests in Panama with contrasting rainfall regimes. Based on seedling studies we hypothesized that species with high photosynthetic capacity light-demanding, fast-growing species would have a higher temperature optimum of photosynthesis (TOpt) than species with low photosynthetic capacity shade-tolerant, slow-growing species and that, therefore, TOpt would scale with species position on the slow-fast continuum of plant functional traits. <br/> TOpt was remarkably similar across species, regardless of species photosynthetic capacity and other plant functional traits. Community-average TOpt was almost identical to mean maximum daytime temperature, which was higher at the dry forest. Photosynthesis above TOpt appeared to be more strongly limited by stomatal conductance at the dry forest than at the wet forest.<br/> The observation that all species in a community shared similar TOpt values suggests that photosynthetic performance is optimized under current temperature regimes. These results should facilitate scaling up photosynthesis in relation to temperature from leaf to stand level in species-rich tropical forests. en
dc.publisher Smithsonian Tropical Research Institute
dc.publisher Smithsonian Tropical Research Institute en
dc.subject Climate change en_US
dc.subject Leaf economics spectrum en_US
dc.subject Lianas en_US
dc.subject Photosynthetic temperature response en_US
dc.subject Photosynthesis en_US
dc.subject Plant functional traits en_US
dc.subject Stomatal conductance en_US
dc.subject Tropical forest en_US
dc.subject Panama en_US
dc.subject Climate change en
dc.subject Leaf economics spectrum en
dc.subject Lianas en
dc.subject Photosynthetic temperature response en
dc.subject Photosynthesis en
dc.subject Plant functional traits en
dc.subject Stomatal conductance en
dc.subject Tropical forest en
dc.subject Panama en
dc.title [Dataset:] Photosynthesis data belonging to publication 'In situ temperature response of photosynthesis of 42 tree and liana species in the canopy of two Panamanian lowland tropical forests with contrasting rainfall regimes'
dc.title Photosynthesis data belonging to publication &#39;In situ temperature response of photosynthesis of 42 tree and liana species in the canopy of two Panamanian lowland tropical forests with contrasting rainfall regimes&#39; en
dc.title.alternative In situ temperature response of photosynthesis of 42 tree and liana species in the canopy of two Panamanian lowland tropical forests with contrasting rainfall regimes en_US
dc.type Dataset
dc.type Dataset en
dc.identifier.srbnumber 149269
dc.identifier.doi 10.5479/data_stri/10088/30581
dc.description.SIUnit STRI en
dc.description.SIUnit Dataset en


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