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1 March 2014 Morphological and Nectar Traits in Echeveria Rosea Lindley (Crassulaceae) Linked to Hummingbird Pollination in Central Veracruz, Mexico
H. David Jimeno-Sevilla, Angélica M. Hernández-Ramírez, Juan Francisco Ornelas, Silvana Marten-Rodríguez
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Abstract

Flowers have evolved suites of traits that are associated with the attraction, reward and utilization of particular pollinator types. Specialization on particular pollinator functional group results in a particular combination of floral traits with consequences on plant fitness through efficient pollen delivery and pollen receipt at the population and species level. The aim of this study was to describe the floral morphology, nectar production patterns, floral visitors and natural fruit set in a population of Echeveria rosea Lindley (Crassulaceae) in central Veracruz, Mexico. The floral traits of Echeveria rosea correspond to the typical hummingbird pollination syndrome. The diurnal pattern of accumulated nectar (volume and amount of sugar) produced by the species corresponds to values reported for other hummingbird-pollinated species. Based on observations of foraging behavior, the Garnet-throated Hummingbird (Lamprolaima rhami) seems to be a more effective pollinator than the White-eared Hummingbird (Hylocharis leucotis). Fruit set per plant was high under natural conditions in the studied population of E. rosea. These results corroborate the hypothesis that E. rosea has a specialized hummingbird-pollination system that results in high fruit set under natural conditions.

H. David Jimeno-Sevilla, Angélica M. Hernández-Ramírez, Juan Francisco Ornelas, and Silvana Marten-Rodríguez "Morphological and Nectar Traits in Echeveria Rosea Lindley (Crassulaceae) Linked to Hummingbird Pollination in Central Veracruz, Mexico," Haseltonia 2014(19), 17-25, (1 March 2014). https://doi.org/10.2985/026.019.0104
Published: 1 March 2014
KEYWORDS
epiphytic habit
floral traits
foraging behavior
hummingbirds
succulent plants
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