Skip to main content

Table 1 Time-and space-use metrics for polygons associated with receipt of acoustic transmissions. The metrics are summarized by density quantile. These density quantiles represent intensity of sampling coverage (25 % = high intensity, 75 % = low intensity). Polygon area and occupancy time are used to calculate the overall sampling effort (km 2/h) and estimate the transmission reception per unit sampling effort (TPUE)

From: A novel approach to quantifying the spatiotemporal behavior of instrumented grey seals used to sample the environment

Density quantile

Number of transmissions

Mean area (km 2)

Mean time (h)

TPUE (km 2/h)

0.25

21

0.21 ± 0.10

1.30 ± 0.16

0.74 ± 8.94

0.5

8

2.51 ± 1.18

2.58 ± 0.78

0.62 ± 1.83

0.75

4

6.59 ±2.87

4.17 ± 1.87

0.03 ± 1.26

  1. N.B. Seven transmissions were received outside of the 75% density quantile