Stem And Crown Allometry In Four Congeneric Species Of Dioecious Tropical Trees

dc.creatorFernandez Otarola
dc.creatorMauricio; Sazima
dc.creatorMarlies; Solferini
dc.creatorVera N.
dc.date2016
dc.datedez
dc.date2017-11-13T13:16:53Z
dc.date2017-11-13T13:16:53Z
dc.date.accessioned2018-03-29T05:53:57Z
dc.date.available2018-03-29T05:53:57Z
dc.identifierTrees-structure And Function. Springer Heidelberg, v. 30, p. 2041 - 2049, 2016.
dc.identifier0931-1890
dc.identifier1432-2285
dc.identifierWOS:000387723300012
dc.identifier10.1007/s00468-016-1431-4
dc.identifierhttps://link-springer-com.ez88.periodicos.capes.gov.br/article/10.1007%2Fs00468-016-1431-4
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/327599
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1364624
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCongeneric species showed similar stem and crown allometry, but differed in crown dimensions indicating that crown size is adaptive and variable despite mechanical restrictions. Morphological adaptations favor differential use of the space in tropical trees, but the variability in stem and crown allometry can be constrained by phylogenetic and mechanical factors. In addition, dioecious species show marked differences in their energy requirements related to reproduction, but little information is available about the role of shape and allometry on differential acquisition of energy between the sexes. We studied the stem and crown dimensions of congeneric dioecious trees to determine if there are: (i) differences in the allometry between the sexes, (ii) different average sizes among sympatric species, and (iii) differences in stem and crown allometry between sympatric and allopatric species. Two pairs of sympatric Virola (Myristicaceae) in Brazil and Costa Rica were studied. SMA regression models were used to investigate allometric relationships between diameter at breast height (DBH) and tree height, and between DBH and crown volume (CV). No sexual dimorphism in stem and crown morphology was observed in this study, indicating that differences in resource allocation for reproduction between the sexes do not impact the stem and crown structure in these species. Overall, low variability among the species was observed. Only one species differed in stem allometry and none differed in crown allometry. CV differed between sympatric species. Stem and crown allometry are related to structural stability and our results support similar mechanical restriction for these species. The ecological significance of differences in CV among canopy species remains to be explored.
dc.description30
dc.description6
dc.description2041
dc.description2049
dc.descriptionState of Sao Paulo Research Foundation (FAPESP) as part of the Thematic Project Functional Gradient BIOTA/FAPESP Program [03/12595-7]
dc.descriptionFAPESP Project [2009/50739-7]
dc.descriptionConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
dc.descriptionFAEPEX/Unicamp
dc.descriptionCNPq
dc.descriptionConsejo Nacional para Investigaciones Cientificas y Tecnologicas (CONICIT), Costa Rica
dc.descriptionOsa Conservation
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageEnglish
dc.publisherSpringer Heidelberg
dc.publisherHeidelberg
dc.relationTrees-Structure and Function
dc.rightsfechado
dc.sourceWOS
dc.subjectCrown Allometry
dc.subjectCrown Size
dc.subjectMyristicaceae
dc.subjectSexual Dimorphism
dc.subjectStem Allometry
dc.subjectTree Size
dc.subjectVirola
dc.titleStem And Crown Allometry In Four Congeneric Species Of Dioecious Tropical Trees
dc.typeArtículos de revistas


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