Parental overproduction allows siblicidal bird to adjust brood size to climate-driven prey variation

I Bizberg-Barraza, C Rodríguez… - Behavioral …, 2024 - academic.oup.com
Parental overproduction is hypothesized to hedge against uncertainty over food availability
and stochastic death of offspring and to improve brood fitness. Understanding the evolution …

Hatching asynchrony and fitness in a neotropical seabird: second-hatched individuals from highly asynchronous broods are less fit but only during the rearing period

S Ortega, C Rodríguez, H Drummond - bioRxiv, 2023 - biorxiv.org
Early-life conditions are important determinants of phenotype and fitness. In birds, hatching
asynchrony can generate differences in early-life conditions within a brood, which, in turn …

Extrapair offspring of the blue-footed booby show no sign of higher fitness in the first 10 years of life

S Ortega, JP Ramírez, C Rodríguez, D Pérez-Morales… - Animal Behaviour, 2023 - Elsevier
Highlights•Pair-bonded females of most avian species copulate with extrapair males.•If
extrapair mates have high-quality genes, then they may improve offspring quality.•To …