Figure 5.

Changes in intra-pair relations, aggression towards competitors, and feeding bites in response to (a,b) re-pairing, and (c,d) subsequent endurance of new pairs throughout several days. Means of standardized canonical scores of the first canonical discriminant function (CDF₁) are represented by box and whisker plots. Structure vectors show the relative strength (length of the vector relative to length of other vectors) and direction (+ or −) of the correlation between each contributing response variable and the canonical discriminant function. MANOVA p-value for change in activity profile in response to relationship phase (a,b) or day (c,d) is shown in the corner. (a,b) In both species, re-pairing with a new partner increases intra-pair aggression (PA). Concurrently, it (a) reduces coordinated swimming (CS) in C. lunulatus (n = 9), and (b) increases coordinated swimming in C. baronessa (n = 10). (a,b) These changes in intra-pair relations are associated with increased competitor aggression (CA) and a reduction in total feeding bites (Ft). (c,d) However, as new pairs endure, intra-pair relations recover along with recovered losses in competitor aggression and feeding bite efficiency.