Table 2 Summary of the modelling outputs for dive segments of 30, 60, 180 and 300 s. Models were run 100 times, and the significance of explanatory dive metrics was evaluated with p values < 0.01. Median and standard deviation (shown in brackets) values for marginal and conditional R2 were obtained from the sensitivity analysis with 100 model runs
From: Predictive model of sperm whale prey capture attempts from time-depth data
Segment duration | Dive metric | Estimate | Std. Error | Z value | n-significant (n/100) | R2 marginal | R2 conditional |
|---|---|---|---|---|---|---|---|
30Â s | Average depth | 1.14014 | 0.06897 | 16.53 | 100/100 | 0.13 (0.03) | 0.13 (0.03) |
Variance depth | -0.14611 | 0.04566 | -3.2 | 98/100 | |||
Variance vertical velocity | 0.23185 | 0.01722 | 13.46 | 100/100 | |||
60Â s | Average depth | 0.99658 | 0.07358 | 13.544 | 100/100 | 0.22 (0.04) | 0.24 (0.04) |
Variance depth | -0.35951 | 0.06249 | -5.753 | 100/100 | |||
Variance vertical velocity | 0.23359 | 0.02049 | 11.399 | 100/100 | |||
180s | Average depth | 0.95534 | 0.06617 | 14.437 | 100/100 | 0.46 (0.05) | 0.49 (0.05) |
Variance depth | -0.35571 | 0.06988 | -5.09 | 100/100 | |||
Variance vertical velocity | 0.18681 | 0.02726 | 6.854 | 100/100 | |||
300s | Average depth | 0.57066 | 0.04762 | 11.984 | 100/100 | 0.54 (0.04) | 0.58 (0.04) |
Variance depth | -0.46369 | 0.06395 | -7.25 | 100/100 | |||
Variance vertical velocity | 0.21382 | 0.02832 | 7.551 | 100/100 |