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Inter-site variation in allometry and wood density of Goupia glabra Aubl. in Amazonia
- Source :
- Repositório Institucional do INPA, Instituto Nacional de Pesquisas da Amazônia (INPA), instacron:INPA, Brazilian Journal of Biology, Vol 76, Iss 1, Pp 268-276, Brazilian Journal of Biology v.76 n.1 2016, Brazilian Journal of Biology, Instituto Internacional de Ecologia (IIE), instacron:IIE
- Publication Year :
- 2016
- Publisher :
- FapUNIFESP (SciELO), 2016.
-
Abstract
- The present study aims to compare the allometry and wood density of Goupia glabra Aubl. (Goupiaceae) in two different terra-firme sites in Amazonian forest. A total of 65 trees ≥ 10 cm DBH was sampled in both sites, with 39 trees in Nova Olinda do Norte (NOlinda, near the Amazon River) and 29 trees in Apui (near the southern edge of the Amazon forest). Except for the relationship between DBH (diameter at breast height) and Ht (total height), allometric relationships for G. glahra differed significantly between sites. Apui had lower intercept and greater slope for log10 (DBH) versus log10 (Hs - stem height), and, conversely, greater intercept and lower slope for log10 (DBH) versus log10 (Ch - crown height). The slope differed significantly between the sites for DBH versus Cd (crown diameter), with greater slope found for NOlinda. Mean basic wood density in Apui was 8.8% lower than in NOlinda. Our findings highlight the variation in adaptive strategy of G. glabra due to environmental differences between sites. This is probably because of different canopy-understory light gradients, which result in differentiation of resource allocation between vertical and horizontal growth, which, in turn, affects mechanical support related to wood density. We also hypothesize that differences in soil fertility and disturbance regimes between sites may act concomitantly with light. © 2016, Instituto Internacional de Ecologia. All rights reserved.
- Subjects :
- 0106 biological sciences
Angiosperms
Light
Forests
Biology
Anatomy And Histology
phenotypic plasticity
010603 evolutionary biology
01 natural sciences
Goupia glabra
Angiosperm
Magnoliopsida
Soil
lcsh:Botany
lcsh:Zoology
functional traits
lcsh:QL1-991
Forest
lcsh:Science
lcsh:QH301-705.5
Amazon rainforest
Ecology
Goupiaceae
Crown (botany)
Diameter at breast height
Forestry
Amazonian forest
biology.organism_classification
Wood
tropical tree species
lcsh:QK1-989
Chemistry
lcsh:Biology (General)
allometric relationships
Growth, Development And Aging
lcsh:Q
Allometry
Soil fertility
General Agricultural and Biological Sciences
010606 plant biology & botany
Subjects
Details
- ISSN :
- 16784375 and 15196984
- Volume :
- 76
- Database :
- OpenAIRE
- Journal :
- Brazilian Journal of Biology
- Accession number :
- edsair.doi.dedup.....62a8ed45560a8d04ad867f49aab18f72