marginal significanceP < 0.2
Significance was set at P < 0.1 and marginal significance at P < 0.2.
Significance was set at P < 0.1 and marginal significance at P < 0.2.
By comparing the net energy gain of all clusters, individuals performing mainly SAW obtained a higher net energetic gain during the brooding period (marginally significant) (Table 2 ).