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dc.contributor.author
de Araújo, Francielle Paulina
dc.contributor.author
Hoffmann, Diego
dc.contributor.author
Dambolena, José Sebastián
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dc.contributor.author
Galetto, Leonardo
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dc.contributor.author
Sazima, Marlies
dc.date.available
2022-01-18T23:48:15Z
dc.date.issued
2021-12
dc.identifier.citation
de Araújo, Francielle Paulina; Hoffmann, Diego; Dambolena, José Sebastián; Galetto, Leonardo; Sazima, Marlies; Nectar characteristics of hummingbird-visited ornithophilous and non-ornithophilous flowers from Cerrado, Brazil; Springer Wien; Plant Systematics and Evolution; 307; 64; 12-2021
dc.identifier.issn
0378-2697
dc.identifier.uri
http://hdl.handle.net/11336/150283
dc.description.abstract
Hummingbirds in the Cerrado, the seasonal savannas in Central Brazil, visit both ornithophilous and non-ornithophilous flowers to collect nectar, which is the main source of energy and nutrients to these pollinators. The aim of the present study was to assess the volume, concentration, energy content and sugar composition of nectar collected from 34 hummingbird-visited flower species. We expect that nectar traits of non-ornithophilous species visited by hummingbirds are similar to those of ornithophilous species. Nectar samples were collected from different plant formations in the Cerrado region at Panga Ecological Station, Uberlândia City, Minas Gerais State, Brazil. Samples were obtained from 19 ornithophilous, 10 entomophilous and five chiropterophilous species. Nectar traits, such as volume, sugar concentration and energy content, did not significantly differ between ornithophilous and non-ornithophilous flowers. However, about 80% of the sampled species had sucrose-rich nectar, whereas other species, mainly chiropterophilous, had hexose-rich nectar. Overall, ornithophilous and chiropterophilous flower nectars shared similar energy content. On the other hand, the sugar-chemical composition of nectar from ornithophilous flowers was more similar to that of sucrose-rich entomophilous flowers. There is broad consensus that the nectar in flowers of hummingbird-pollinated species is rich in sucrose. However, hummingbirds visit several savanna plant species unrelated to the ornithophilous pollination syndrome. This trend indicates that hummingbirds show plasticity in selecting plant nectar sources when feeding, mainly in resource-fluctuating environments such as the Cerrado.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Wien
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BRAZILIAN SAVANNA
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FRUCTOSE
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GLUCOSE
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SUCROSE
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TROCHILIDAE
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Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Nectar characteristics of hummingbird-visited ornithophilous and non-ornithophilous flowers from Cerrado, Brazil
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-12-03T19:22:06Z
dc.identifier.eissn
1615-6110
dc.journal.volume
307
dc.journal.number
64
dc.journal.pais
Austria
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dc.journal.ciudad
Viena
dc.description.fil
Fil: de Araújo, Francielle Paulina. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Hoffmann, Diego. Universidade Federal do Espírito Santo; Brasil
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Fil: Dambolena, José Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
dc.description.fil
Fil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
dc.description.fil
Fil: Sazima, Marlies. Universidade Estadual de Campinas; Brasil
dc.journal.title
Plant Systematics and Evolution
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00606-021-01790-z
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00606-021-01790-z
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