Selection on signal–reward correlation: limits and opportunities to the evolution of deceit in Turnera ulmifolia L.

Abstract excerpt

Because pollinators are unable to directly assess the amount of rewards offered by flowers, they rely on the information provided by advertising floral traits. Thus, having a lower intra-individual correlation between signal and reward (signal accuracy) than other plants in the population provides the opportunity to reduce investment in rewards and cheat pollinators. However, pollinators' cognitive capacities can...

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