Table 1 Comparison of counts between Penguin Watch (CS) and GS data for four cameras: DAMOa, HALFc, LOCKb and PETEc. ‘Threshold employed’ relates to the filtering threshold applied during analysis.
From: Time-lapse imagery and volunteer classifications from the Zooniverse Penguin Watch project
Threshold employed | ||||||||
|---|---|---|---|---|---|---|---|---|
Only adult classifications | All adult and chick classifications | |||||||
>1 | >2 | >3 | >4 | >1 | >2 | >3 | >4 | |
DAMOa | n=300 | n=300 | ||||||
Average difference | 1.88 | 1.50 | 1.18 | 1.24 | 1.94 | 1.58 | 1.37 | 1.53 |
σ | 2.15 | 1.78 | 1.56 | 1.40 | 2.22 | 1.86 | 1.69 | 1.61 |
Proportion of differences that are 0 or 1 | 0.56 | 0.67 | 0.75 | 0.69 | 0.56 | 0.64 | 0.69 | 0.62 |
HALFc | n=283 | n=283 | ||||||
Average difference | 1.28 | 0.99 | 0.88 | 0.99 | 1.45 | 1.27 | 1.34 | 1.55 |
σ | 2.06 | 1.58 | 1.34 | 1.28 | 2.08 | 1.71 | 1.64 | 1.72 |
Proportion of differences that are 0 or 1 | 0.74 | 0.82 | 0.85 | 0.82 | 0.69 | 0.71 | 0.68 | 0.64 |
LOCKb | n=300 | n=300 | ||||||
Average difference | 1.41 | 1.25 | 1.17 | 1.19 | 1.40 | 1.24 | 1.18 | 1.29 |
σ | 2.31 | 2.12 | 1.98 | 1.96 | 2.30 | 1.89 | 1.74 | 1.78 |
Proportion of differences that are 0 or 1 | 0.73 | 0.77 | 0.77 | 0.75 | 0.72 | 0.73 | 0.73 | 0.68 |
PETEc | n=300 | n=300 | ||||||
Average difference | 3.60 | 2.48 | 2.36 | 3.27 | 4.29 | 3.54 | 4.37 | 6.06 |
σ | 3.50 | 2.99 | 2.69 | 2.86 | 4.51 | 4.07 | 4.41 | 5.20 |
Proportion of differences that are 0 or 1 | 0.28 | 0.46 | 0.46 | 0.30 | 0.25 | 0.37 | 0.33 | 0.20 |
