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1 January 1999 Does Flower Color Change in Aster vimineus Cue Pollinators?
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Abstract

Flower color change, floral rewards, and the size of a floral display in relation to pollinator attraction were studied in Aster vimineus. The center disk florets of A. vimineus are either all yellow or all red in a given flower. We determined that this variation in disk color was due to localized color change from yellow to red. Yellow florets contained more pollen and a greater percentage of viable pollen than red florets. All pollinator types consistently preferred flowers with yellow disks over those with red disks. The addition of nectar did not influence pollinator visitation rates, unless the pollinators were choosing only among flowers with red disks. Retention of the flowers with red disks allowed for greater floral display which increased pollinator visitation rates.

RICHARD A. NIESENBAUM, MARIA G. PATSELAS, and SAMUEL D. WEINER "Does Flower Color Change in Aster vimineus Cue Pollinators?," The American Midland Naturalist 141(1), 59-68, (1 January 1999). https://doi.org/10.1674/0003-0031(1999)141[0059:DFCCIA]2.0.CO;2
Accepted: 1 March 1998; Published: 1 January 1999
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