Pollinator Competition May Drive Flower Diversification (image) PLOS Share Print E-Mail Caption Competitive exclusion of long-billed female purple-throated carib hummingbirds (left) by short-billed, dominant males (right) results in partitioning of red and yellow Heliconia (lobster-claw) varieties. As a result, females select for long flowers of the red variety whereas males select for flowers of intermediate length of the yellow variety, potentially leading to floral diversification. Credit Temeles et al. Usage Restrictions All figures and photographic images will be published under a Creative Commons Attribution License (CCAL), which allows them to be freely used, distributed, and built upon as long as proper attribution is given. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.