Fig 2. Under increasing cost of feeding, females exceed males in intra-individual variability, but not inter-individual variability.

Previously reported feeding data (A) shows individuals given 4 days in each of 4 FUP feeding regimens, with increasing cost in each block. Females show significantly higher intra-individual variability (B) across blocks. Within blocks, females only significantly exceed males in block 3 (B, *). There is no sex effect in inter-individual variability (C). Inter- and intra-individual variability significantly decreases with increasing food cost.