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Table 1 Mean (± SE) values of measured perching and foraging parameters for R. formosae in edge-open forest and forest interior sites in the GEF-HTBG forests, Kenting, Taiwan

From: Perch time allocation and feeding efficiency of flycatching Rhinolophus formosae: an optimal foraging behavior?

Variables

Edge-open (n = 257 bouts)

Interior (n = 200 bouts)

Perching variables

 Perch

2.49 ± 0.13 (79.8; 253)

2.23 ± 0.13 (80.2; 195)

 Perch-switch

2.55 ± 0.32 (198.5; 253)

1.99 ± 0.23 (159.7; 195)

 Perch-switch rate

0.07 ± 0.01 (146.8; 251)

0.06 ± 0.01 (187.0; 194)

Foraging variables

 Site residence time

40.43 ± 3.18 (124.8; 252)

46.63 ± 3.67 (110.5; 195)

 Perch residence time

12.97 ± 0.82 (99.8; 252)

17.77 ± 1.74 (137.7; 195)

 Giving-up time

3.22 ± 0.23 (112.3; 242)

3.83 ± 0.64 (223.3; 178)

 Site attack

13.60 ± 1.33 (155.2; 251)

17.2 ± 1.64 (133.7; 196)

 Perch attack

4.10 ± 0.35 (113.5; 181)

5.63 ± 0.71 (143.3; 131)

 Attack rate

0.28 ± 0.02 (95.1; 251)

0.31 ± 0.02 (86.8; 196)

 Site capture

2.12 ± 0.73 (415.9; 147)

3.02 ± 0.51 (175.5; 106)

 Perch capture

0.73 ± 0.15 (215.4; 110)

1.45 ± 0.32 (188.9; 75)

 Capture rate

0.05 ± 0.01 (220.0; 145)

0.10 ± 0.02 (174.6; 99)

 Attack efficiency

0.11 ± 0.02 (186.3; 145)

0.20 ± 0.03 (135.0; 98)

  1. Coefficients of variation (%) and sample sizes (n) are in parentheses