Regression models for estimating leaf area of seedlings and adult individuals of Neotropical rainforest tree species
| Autor: | Daniel Piotto, Ediófila Brito-Rocha, Marcelo Schramm Mielke, A. C. Dalmolin, L. Dos Anjos, Ana Cristina Schilling |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Ecophysiology Rainforest food.ingredient ontogenetic stage tree growth leaf shape 010603 evolutionary biology 01 natural sciences Psidium cattleyanum Trees food lcsh:Botany lcsh:Zoology Botany Leaf size lcsh:QL1-991 Symphonia globulifera lcsh:Science lcsh:QH301-705.5 biology leaf allometry Models Theoretical biology.organism_classification lcsh:QK1-989 Tabebuia Plant Leaves lcsh:Biology (General) Seedlings leaf size Regression Analysis Manilkara maxima lcsh:Q General Agricultural and Biological Sciences Pouteria caimito Brazil 010606 plant biology & botany |
| Zdroj: | Brazilian Journal of Biology v.76 n.4 2016 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE Brazilian Journal of Biology, Iss 0 |
| ISSN: | 1678-4375 1519-6984 |
| DOI: | 10.1590/1519-6984.05515 |
| Popis: | Individual leaf area (LA) is a key variable in studies of tree ecophysiology because it directly influences light interception, photosynthesis and evapotranspiration of adult trees and seedlings. We analyzed the leaf dimensions (length – L and width – W) of seedlings and adults of seven Neotropical rainforest tree species (Brosimum rubescens, Manilkara maxima, Pouteria caimito, Pouteria torta, Psidium cattleyanum, Symphonia globulifera and Tabebuia stenocalyx) with the objective to test the feasibility of single regression models to estimate LA of both adults and seedlings. In southern Bahia, Brazil, a first set of data was collected between March and October 2012. From the seven species analyzed, only two (P. cattleyanum and T. stenocalyx) had very similar relationships between LW and LA in both ontogenetic stages. For these two species, a second set of data was collected in August 2014, in order to validate the single models encompassing adult and seedlings. Our results show the possibility of development of models for predicting individual leaf area encompassing different ontogenetic stages for tropical tree species. The development of these models was more dependent on the species than the differences in leaf size between seedlings and adults. |
| Databáze: | OpenAIRE |
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