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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Association between floral traits and rewards in Erysimum mediohispanicum (Brassicaceae)
Author(s): Gomez, Jose M
Bosch, Jordi
Perfectti, Francisco
Fernandez, J D
Abdelaziz Mohamed, Mohamed
Camacho, Juan Pedro M
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Keywords: Erysimum
floral traits
pollinator visitation rate
Issue Date: Jun-2008
Date Deposited: 4-Nov-2013
Citation: Gomez JM, Bosch J, Perfectti F, Fernandez JD, Abdelaziz Mohamed M & Camacho JPM (2008) Association between floral traits and rewards in Erysimum mediohispanicum (Brassicaceae). Annals of Botany, 101 (9), pp. 1413-1420.
Abstract: Background and Aims: Floral rewards may be associated with certain morphological floral traits and thus act as underlying factors promoting selection on these traits. This study investigates whether some traits that are under pollinator- mediated selection (flower number, stalk height, corolla diameter, corolla tube length and corolla tube width) in the Mediterranean herb E. mediohispanicum (Brassicaceae) are associated with rewards (pollen and nectar). Methods: During 2005 the phenotypic traits and the visitation rate of the main pollinator functional groups were quantified in 720 plants belonging to eight populations in south-east Spain, and during 2006 the same phenotypic traits and the reward production were quantified in 400 additional plants from the same populations. Key Results: A significant correlation was found between nectar production rate and corolla tube length, and between pollen production and corolla diameter. Visitation rates of large bees and butterflies were significantly higher in plants exhibiting larger flowers with longer corolla tubes. Conclusions: The association between reward production and floral traits may be a factor underlying the pattern of visitation rate displayed by some pollinators. 
DOI Link: 10.1093/aob/mcn053
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