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No. de sistema: 000013184

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040 _ _ a| ECO
c| ECO
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100 1 _ a| Solis Montero, Lislie
245 1 0 a| Does the morphological fit between flowers and pollinators affect pollen deposition? An experimental test in a buzz-pollinated species with anther dimorphism
520 1 _ a| Some pollination systems, such as buzz-pollination, are associated with floral morphologies that require a close physical interaction between floral sexual organs and insect visitors. In these systems, a pollinator's size relative to the flower may be an important feature determining whether the visitor touches both male and female sexual organs and thus transfers pollen between plants efficiently. To date, few studies have addressed whether in fact the “fit” between flower and pollinator influences pollen transfer, particularly among buzz-pollinated species. Here we use Solanum rostratum, a buzz-pollinated plant with dimorphic anthers and mirror-image flowers, to investigate whether the morphological fit between the pollinator's body and floral morphology influences pollen deposition. We hypothesized that when the size of the pollinator matches the separation between the sexual organs in a flower, more pollen should be transferred to the stigma than when the visitor is either too small or too big relative to the flower. To test this hypothesis, we exposed flowers of S. rostratum with varying levels of separation between sexual organs, to bumblebees (Bombus terrestris) of different sizes. We recorded the number of visits received, pollen deposition, and fruit and seed production. We found higher pollen deposition when bees were the same size or bigger than the separation between anther and stigma within a flower. We found a similar, but not statistically significant pattern for fruit set. In contrast, seed set was more likely to occur when the size of the flower exceeded the size of the bee, suggesting that other postpollination processes may be important in translating pollen receipt to seed set. Our results suggest that the fit between flower and pollinator significantly influences pollen deposition in this buzz-pollinated species.
520 1 _ a| We speculate that in buzz-pollinated species where floral morphology and pollinators interact closely, variation in the visitor’s size may determine whether it acts mainly as a pollinator or as a pollen thief (i.e., removing pollen rewards but contributing little to pollen deposition and fertilization).
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Solanum rostratum
650 _ 4 a| Polinización
650 _ 4 a| Polinizadores
650 _ 4 a| Bombus terrestris
650 _ 4 a| Abejorros
651 _ 4 a| Atitalaquia (Hidalgo, México)
651 _ 4 a| Zempoala (Hidalgo, México)
651 _ 4 a| Puebla (Puebla, México)
651 _ 4 a| Teotihuacán (México, México)
651 _ 4 a| Zapotitlán (Puebla, México)
651 _ 4 a| Vicente Guerrero, Mapimi (Durango, México)
700 1 _ a| Vallejo Marín, Mario
e| coaut.
n| 15726822200
773 0 _
t| Ecology and Evolution
g| Vol. 7, no. 8 (April 2017), p. 2706–2715
x| 2045-7758
856 4 1 u| http://onlinelibrary.wiley.com/doi/10.1002/ece3.2897/full
z| Artículo electrónico
856 _ _ u| http://aleph.ecosur.mx:8991/F?func=service&doc_library=CFS01&local_base=CFS01&doc_number=000013184&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
y| Artículo electrónico
902 _ _ a| GOG / MM
904 _ _ a| Abril 2017
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
906 _ _ a| Producción Académica ECOSUR
LNG eng
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Does the morphological fit between flowers and pollinators affect pollen deposition? An experimental test in a buzz-pollinated species with anther dimorphism
Solis Montero, Lislie (autor)
Vallejo Marín, Mario (autor)
Contenido en: Ecology and Evolution. Vol. 7, no. 8 (April 2017), p. 2706–2715. ISSN: 2045-7758
No. de sistema: 13184
Tipo: Artículo
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Inglés

"Some pollination systems, such as buzz-pollination, are associated with floral morphologies that require a close physical interaction between floral sexual organs and insect visitors. In these systems, a pollinator's size relative to the flower may be an important feature determining whether the visitor touches both male and female sexual organs and thus transfers pollen between plants efficiently. To date, few studies have addressed whether in fact the “fit” between flower and pollinator influences pollen transfer, particularly among buzz-pollinated species. Here we use Solanum rostratum, a buzz-pollinated plant with dimorphic anthers and mirror-image flowers, to investigate whether the morphological fit between the pollinator's body and floral morphology influences pollen deposition. We hypothesized that when the size of the pollinator matches the separation between the sexual organs in a flower, more pollen should be transferred to the stigma than when the visitor is either too small or too big relative to the flower. To test this hypothesis, we exposed flowers of S. rostratum with varying levels of separation between sexual organs, to bumblebees (Bombus terrestris) of different sizes. We recorded the number of visits received, pollen deposition, and fruit and seed production. We found higher pollen deposition when bees were the same size or bigger than the separation between anther and stigma within a flower. We found a similar, but not statistically significant pattern for fruit set. In contrast, seed set was more likely to occur when the size of the flower exceeded the size of the bee, suggesting that other postpollination processes may be important in translating pollen receipt to seed set. Our results suggest that the fit between flower and pollinator significantly influences pollen deposition in this buzz-pollinated species."

"We speculate that in buzz-pollinated species where floral morphology and pollinators interact closely, variation in the visitor’s size may determine whether it acts mainly as a pollinator or as a pollen thief (i.e., removing pollen rewards but contributing little to pollen deposition and fertilization)."


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