Figure 1.
Uganda-Kibale National Park-Sebitoli area, home-range and maize field monitored (location of the guarding huts, the fallen tree and the video-trap).
Figure 2.
Number of clips and number of individual sessions recorded by the video-trap from the 5th to the 25th of February 2013 according to lunar phases during this period.
Figure 3.
Party composition during forest feeding activities and activities at the border of the maize field.
Figure 4.
Frequency of signs of anxiety and vigilance in chimpanzees during day and night crop-raiding (occurrence of each behaviour per minute of video record).
Figure 5.
Time distribution of crop-raiding activities recorded (number of clips and individual sessions) during daylight and night including twilight and darkness period.
Figure 6.
Types of arboreal locomotion used during night and day to cross the trench using the bridging tree to go and come back from the maize field (occurrence of each behaviour per minute of video record).