Morph-specific selection pressures drive phenotypic divergence in a color polymorphic bird
Arianna Passarotto, Moritz Lürig, Esa Aaltonen, Patrik Karell
The paper analyzes 43 years of plumage color data from tawny owls to show that intra-morph color variation is dynamic and driven by differential selection pressures between brown and gray morphs.
Communications Biology · Dec 13, 2025Peer-reviewedEvolutionary Biology