Figure 2.

An example of successive diving activities, called a ‘dive bout’, of an Adélie penguin with the number of krill capture events in each dive. For each dive, dive-scale (red horizontal bar) and bout-scale (blue horizontal bar) krill capture rates are calculated and used for the analysis. Note that a dive is a part of a bout, and dive-scale and bout-scale krill capture rates share some information, posing the risk of collinearity in the modelling analysis. Bout-scale krill capture rates include information that will be known by the penguin in the future. Therefore, the experienced bout-scale (green horizontal bar) krill capture rate, which is based only on the experienced portion of the bout (i.e. excluding dives subsequent to the dive in question), is also examined.