|
Hunting timelowres for different threshold values (m s−1)
|
Hunting timehighres
|
|---|
|
Weddell seal
|
SES 1
|
SES 2
|
Both SES
|
|---|
|
0.1
|
0.73
|
0.40
|
0.25
|
0.33
|
|
0.2
|
0.89
|
0.62
|
0.36
|
0.50
|
|
0.3
|
0.94
|
0.66
|
0.46
|
0.56
|
|
0.4
|
0.94
|
0.62
|
0.61
|
0.61
|
|
0.5
|
0.93
|
0.62
|
0.62
|
0.61
|
|
0.6
|
0.92
|
0.61
|
0.63
|
0.60
|
|
0.7
|
0.91
|
0.59
|
0.62
|
0.58
|
|
0.8
|
NA
|
0.57
|
0.63
|
0.55
|
|
0.9
|
NA
|
0.54
|
0.58
|
0.52
|
-
R
2 of Spearman correlations between hunting timehighres and hunting timelowres. Huntinghighres time is the total time spent in “huntinghighres” mode (highly sinuous phases of the dive) per high-resolution dive (see “Fine scale analysis of foraging behaviour”, [21]). Hunting timelowres is the sum of the total time spent per low-resolution dive in segments associated with vertical velocity inferior to a defined threshold. The set of thresholds tested was chosen to encompass the first mode of the distribution of the vertical velocity associated with each segment in low-resolution dives (see Fig. 2)
