Figure 2. Mean GUDs (g ± SE, A) Percent of trays foraged (B), and total seeds consumption (g ± SE, C) of A. russatus and A. cahirinus in the two species enclosures and A. russatus enclosures during full moon nights and the following days.

In the two species enclosures nocturnal foraging is ascribed to A. cahirinus and diurnal foraging to A. russatus. In the A. russatus enclosures both diurnal and nocturnal foraging were carried out by A. russatus * p<0.05, ** p<0.01, ***p<0.001. A: Moon phase influenced GUDs, even during daytime: patches were foraged by A. russatus to significantly lower GUDs under new moon vs. full moon during both parts of the diel cycle. However, patches were foraged to a significantly lower GUDs during daytime than during nighttime. A. cahirinus also foraged to significantly lower GUDs under new moon. The effect of moon was significantly higher on A. cahirinus compared to A. russatus. B: Moon phase had a significant effect on patch foraging probabilities only in the two species enclosures, where during daytime A. russatus patch foraging probabilities were lower during new moon than during full moon. During nighttime A. cahirinus patch foraging probabilities were higher during new moon than full moon nights. In the A. russatus enclosures patch foraging probabilities of A. russatus were lower during nighttime compared to daytime, in which A. russatus foraged in fewer patches during nighttime regardless of moon phase. C: Moon phase influenced the amount of seeds eaten at each enclosure: A. russatus consumed a higher amount of seeds under new moon vs. full moon during both parts of the dial cycle. However, significantly less amount of seeds were eaten during A. russatus nocturnal foraging than during diurnal foraging. A. cahirinus also consumed a higher amount of seeds under new moon. Moreover, the effect of moon was not significantly different between the species.