Personality is essential for understanding the evolution of cooperation and conflict in
behavior. However, personality science remains disconnected from the field of social …

Highlights•Personality of both parents and their similarity in personality can affect
fitness.•Greylag geese were not assortatively paired for personality at the flock …

The biological significance of behavioural predictability (environment-independent within-
individual behavioural variation) became accepted recently as an important part of an …

In long‐lived monogamous species, the trigger of costly re‐pairing is not always clear.
Limited research suggests that within‐pair behavioural compatibility may be an important …

For long‐lived species with biparental care, coordination and compatibility in the foraging
behavior of breeding mates may be crucial to successfully raise offspring. While high …

Intraspecific variation provides the substrate for the evolution of organisms. Ruffs show
exceptional phenotypic variation in physiology, appearance and behaviour linked to …

Risk taking behaviour—how individuals perceive and respond to threat—varies among
individuals. In birds, this behaviour influences the choice of nest microhabitat presumably …

Assortative mating occurs when paired individuals of the same population are more similar
than expected by chance. This form of non‐random assortment has long been predicted to …

Assortative mating is non‐random mating by the mutual choice of phenotypes or behavioral
types. In polygynandrous species, competition for mating by social rank can lead to …

Biparental care is a cooperative enterprise where two individuals act both independently
and in congress to rear their offspring. Historically, literature has focused on the conflicts that …