A Syrphid Fly (<I>Toxomerus</I> spp.) Visits a Wild Radish (<I>Raphanus raphanis
Jeffrey Conner Michigan State University Hickory Corners Michigan USA
Brassicaceae, common garden experiment, floral morphology, phenotypic variation, population differentiation, Raphanus raphanistr
BSA Plant Images Online - A Syrphid Fly (Toxomerus spp.) Visits a Wild Radish (Raphanus raphanistrum) Flower
A syrphid fly (Toxomerus spp.) visits a wild radish (Raphanus raphanistrum) flower. Syrphids are one of a variety of effective pollinators of wild radish, which also include bumble bees, honey bees, sweat bees, and cabbage butterflies. The strength of selection exerted by these pollinators and the heritability of floral traits in the field are lessened by a large degree of within-plant variation in these traits.