Generalized pollination system: are floral traits adapted to different pollinators?
Author
dc.contributor.author
Lemaitre Bailey, Carmen
Author
dc.contributor.author
Pinto, Carlos
Author
dc.contributor.author
Niemeyer Marich, August
Admission date
dc.date.accessioned
2018-12-20T14:14:22Z
Available date
dc.date.available
2018-12-20T14:14:22Z
Publication date
dc.date.issued
2014
Cita de ítem
dc.identifier.citation
Arthropod-Plant Interactions (2014) 8:261–272
Identifier
dc.identifier.issn
18728847
Identifier
dc.identifier.issn
18728855
Identifier
dc.identifier.other
10.1007/s11829-014-9308-1
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/155119
Abstract
dc.description.abstract
Flowers that are pollinated both during the day and at night could exhibit two different groups of pollinators and produce two different sets of attractants and rewards. We explored the patterns of emission of flower scents and production of nectar in the cactus Echinopsis chiloensis ssp. chiloensis, in relation to the patterns of activity of its diurnal and nocturnal pollinators. We measured frequency of flower visitors, analyzed floral scents, measured nectar production and sugar concentration, and performed pollination exclusion experiments. Bees were the main visitors at daytime and hawkmoths at nighttime. Diurnal scents were dominated by several compounds that can attract a wide range of pollinators, whereas nocturnal scents were less diverse and were dominated by (E)-nerolidol, a compound eliciting antennal responses in hawkmoths. Nectar volume and sugar concentration at night were similar to those recorded in hawkmoth-pollinated flowers. Daytime nectar volume was higher than those
commonly found in bee-pollinated flowers, but similar to those found in flowers pollinated by several pollinators.
Daytime sugar concentration was similar to those recorded in bee-pollinated flowers. Flowers of E. chiloensis ssp.
chiloensis seem morphologically adapted to hawkmoth pollination, but diurnal and nocturnal pollinators contribute
to similar extents to reproductive success. Additionally,
diurnal and nocturnal pollinators showed a synergic effect
on the product of fruit set and seed set. The results are discussed in terms of the linkage between floral traits and
perception abilities and requirements of pollinators