Carbon δ13C Isotopic Marker Values Correlate with Carotenoid-Based Bill Colouration in Adult Yellow-Legged Gulls Larus michahellis

• Published in: Ardeola
• Main Authors: Nere Zorrozua, Carlos Alonso-Álvarez, Beñat Diaz, Carola Sanpera, Lluís Jover, Juan Arizaga
• Format: Text
• Language: English
• Published: Spanish Society of Ornithology 2020
• Subjects: calidad individual; coloración basada en carotenoides; ecología trófica; Arizaga; Diaz; Avian Studies
• Online Access: https://doi.org/10.13157/arla.67.2.2020.ra6

The carotenoid-based colouration that many birds present may honestly reflect the quality of the bearer, as carotenoids have to be obtained through diet. These pigments are important for many physiological functions and individuals could find a trade-off between the allocation of carotenoids for the...