The Accuracy of Behavioural Data Collected by Visitors in a Zoo Environment: Can Visitors Collect Meaningful Data?

Figure 5

Results of bootstrapped PCA examining differences between ethogram and visitor data. Black = ethogram data for group of otters, red = ethogram data for otter 1, green = ethogram data for otter 2, dark blue = ethogram data for otter 3, light blue = corrected visitor data, and pink = uncorrected visitor data. Cumulative proportion of variance explained by first 3 principal components = 0.995.