Data from: Linking divergence in phenotypic selection on floral traits to divergence in local pollinator assemblages in a pollination-generalized plant

Divergent patterns of phenotypic selection on floral traits can arise in
response to interactions with functionally distinct pollinators. However,
there are a limited number of studies that relate patterns of phenotypic
selection on floral traits to variation in local pollinator assemblages in
pollination-generalized plant species. We studied phenotypic selection on
floral traits of Viscaria vulgaris, a plant that interacts with a broad
range of diurnal and nocturnal pollinators, and related divergence in
phenotypic selection on floral traits to the expected level of divergence
in local pollinator assemblages. We detected phenotypic selection on
floral traits involved in the attraction of pollinators and the mechanics
of pollen removal and deposition, and demonstrated that floral traits are
subject to spatiotemporal variation in the strength and direction of
phenotypic selection. We revealed that diurnal and nocturnal pollinators,
when considered in isolation, mediated divergent patterns of phenotypic
selection on floral traits. Consistent with the Grant-Stebbins model, we
observed that divergence in phenotypic selection on floral traits
increased with the expected level of divergence in local pollinator
assemblages. Thus, generalized plant-pollinator interactions can mediate
phenotypic selection on floral traits and distinct local pollinator
assemblages can generate a geographic mosaic of divergent patterns of
phenotypic selection. We underscore that these outcomes are not exclusive
to specialized plant-pollinator interactions and can emerge at a local
geographic scale.