Microstructures amplify carotenoid plumage signals in colorful tanagers
D. E. McCoy, A. J. Shultz, C. Vidoudez, E. van der Heide, S. A. Trauger, D. Haig
The paper quantifies carotenoid signals in tanagers, showing males have microstructures that amplify color appearance, challenging the idea that carotenoids alone explain plumage honesty.
bioRxiv · Jul 4, 2020 · PreprintEvolutionary Biology