Table 1.

Commonly used terms in behavioural variation.

Term	Meaning	Refs.
Context	A functional behavioural category such as “feeding”, “mating”, “parental care”, “contests”, etc.	[11]
Situation	A given set of environmental conditions at a certain point in time, e.g., high predator risk	[11]
Trait (biology)	Any empirical measure obtained from an individual, but not the theoretical concepts that are inferred from such measures.	[21]
Repeatability	Standardised measure of the differentiation in average phenotype across individuals, defined as the proportion of phenotypic variance explained by differences between individuals	[19]