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Artículo

Nectar concentration and composition of 26 species from the temperate forest of South America

Chalcoff, Vanina RuthIcon ; Aizen, Marcelo AdrianIcon ; Galetto, LeonardoIcon
Fecha de publicación: 03/2006
Editorial: Oxford University Press
Revista: Annals of Botany
ISSN: 0305-7364
e-ISSN: 1095-8290
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Background and Aims Floral nectar concentration and chemical composition of 26 plant species native to the temperate forest of southern South America are reported and the relationships with the flower type are evaluated. Methods Nectar concentration was measured with a hand refractometer and sugar composition was analysed by gas–liquid chromatography. Plant species were classified into flower type categories based not only on floral features but also on data from the literature and field observations on their pollinators. Key Results Most data on nectar are new reports at the generic and/or specific level. Plant species in which more than one population was studied showed significant among-population variation in nectar sugar concentration and composition. Results showed a weak relationship between nectar traits and flower type. Many species had nectar containing 50 % or more sucrose (17 of 26 species), independent of the main pollinator. Conclusions Considering that (a) nectar characteristics did not show a clear association with different flower types or with plant taxonomic membership, and (b) different populations of the same species showed large variability in sugar composition, the results suggest that other factors (e.g. historical and environmental) could be involved in determining the sugar composition of the highly endemic plant species from this region.
Palabras clave: Nectar Sugar Composition , Sugar Concentration , Flower Type , Pollination , Hummingbirds , Diurnal Insects , Nocturnal Insects , Temperate Forest of Southern South America
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/31478
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803636/
DOI: https://dx.doi.org/10.1093/aob/mcj043
Colecciones
Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Articulos(INIBIOMA)
Articulos de INST. DE INVEST.EN BIODIVERSIDAD Y MEDIOAMBIENTE
Citación
Galetto, Leonardo; Aizen, Marcelo Adrian; Chalcoff, Vanina Ruth; Nectar concentration and composition of 26 species from the temperate forest of South America; Oxford University Press; Annals of Botany; 97; 3; 3-2006; 413-421
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