Fig 1.
Overview of the measures included in the AWARE Tool survey and the welfare concepts they relate to.
Table 1.
Enclosure details for each group of chimpanzees, classed according to group size.
Table 2.
Chimpanzees minimum access to each area, day and night, during the summer and winter.
Fig 2.
Enclosure Complexity Index grid.
Zoo codes are in orange circles. F: proportion of flexible vs rigid supports; D: density of supports; C: extent to which supports are changed over time; T: diversity of support types, O: diversity of support orientations. For type and orientation, the letters in italics indicate supports that are rigid (R), flexible (F) or other (O). Dark blue cells indicate the parameter was scored as low complexity; mid blue indicates moderate and pale blue indicates high complexity. White cells indicate that the zoo did not have a type of enclosure or that the specific data were not obtainable. Grey cells in support type and orientation indicate there were no supports of that category (rigid/ flexible/ other) in the specific enclosure. Full explanation is given in the Methods.
Table 3.
Feeding planning, management and provision by the zoos.
Fig 3.
Aspects of the chimpanzees’ lives where they can express choice and control.
Aspects in the separate columns were provided as examples in the survey and green shading indicates zoos that highlighted these as present for their chimpanzees. Aspects in the final column were free text comments provided by respondents. Green shading is used (rather than the blue in other tables) because it reflects what the zoos report is present rather than an indication of welfare quality.
Fig 4.
The validation framework for welfare assessment tools.