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Table 1 The number of daily recesses and nest constancy of Chinese Grouse females during the incubation period at Lianhuashan Nature Reserve, Gansu, China

From: Egg laying and incubation rhythm of the Chinese Grouse (Tetrastes sewerzowi) at Lianhuashan, Gansu, China

Year-female number Nest age Number of daily recessesa Recess duration (min)b Nest constancy (%)c Hatched/Failed Radio-tracked
99-01 2–26 5.36 ± 1.16 (23) 28.93 ± 7.59 (129) 89.16 ± 1.96 H Y
99-02 5–16 4.83 ± 0.79 (12) 22.84 ± 5.49 (57) 92.31 ± 1.17 F Y
99-03 18–24 5.57 ± 0.82 (7) 22.76 ± 10.23 (39) 91.19 ± 1.62 H Y
00-01 22–30 3.56 ± 0.53 (9) 21.48 ± 7.06 (31) 94.72 ± 1.18 H N
00-02 6–29 5.25 ± 0.61 (24) 18.87 ± 6.66 (126) 93.12 ± 1.16 H Y
00-03 7–25 4.84 ± 0.96 (19) 20.66 ± 6.67 (92) 93.05 ± 1.22 F N
00-04 5–28 4.67 ± 0.87 (24) 23.52 ± 7.93 (113) 92.40 ± 1.29 H Y
00-05 8–21 4.69 ± 0.63 (13) 22.78 ± 7.42 (64) 92.66 ± 1.07 H Y
00-06 13–25 6.15 ± 0.81 (13) 21.19 ± 6.31 (78) 91.30 ± 1.69 F Y
00-07 12–19 4.50 ± 0.53 (8) 18.83 ± 4.34 (36) 94.11 ± 0.75 F N
01-01 8–18 4.36 ± 0.67 (11) 19.38 ± 6.69 (48) 94.13 ± 1.09 F Y
01-02 15–29 6.07 ± 0.70 (15) 15.9 ± 5.06 (92) 93.39 ± 1.08 H Y
01-03 10–26 5.19 ± 0.75 (16) 16.36 ± 6.48 (84) 94.11 ± 1.20 F N
01-04 13–20 4.29 ± 0.49 (7) 22.32 ± 5.06 (25) 93.54 ± 0.57 F Y
10-01 1–13 4.54 ± 0.66 (13) 21.97 ± 5.48 (59) 93.08 ± 1.26 F N
10-02 2–23 4.64 ± 0.58 (22) 14.38 ± 4.09 (101) 95.42 ± 0.73 F Y
10-03 13–20 4.75 ± 0.71 (8) 23.56 ± 8.94 (36) 92.27 ± 1.60 F Y
10-04 19–27 4.89 ± 0.78 (9) 22.37 ± 7.4 (43) 92.42 ± 0.91 H Y
10-05 17–26 5.30 ± 0.82 (10) 20.55 ± 5.71 (52) 92.58 ± 1.17 H N
13-01 2–16 4.41 ± 0.79 (15) 21.09 ± 7.38 (52) 93.29 ± 1.91 H Y
13-02 7–18 4.45 ± 0.52 (11) 23.6 ± 9.36 (10) 93.08 ± 2.65 F Y
13-03 15–24 5.18 ± 0.60 (11) 19.86 ± 8.8 (43) 93.02 ± 1.68 H N
14-01 10–20 4.15 ± 0.69 (11) 18.28 ± 5.78 (39) 94.56 ± 1.48 H Y
14-02 3–12 5.90 ± 0.88 (10) 18.71 ± 9.61 (45) 92.32 ± 1.76 H Y
15-01 2–8 4.29 ± 0.49 (7) 17.64 ± 4.93 (28) 94.85 ± 0.86 H Y
16-01 19–25 6.00 ± 0.76 (7) 18.21 ± 7.56 (29) 92.96 ± 1.29 H Y
16-02 2–25 6.13 ± 0.85 (24) 16.24 ± 7.51 (109) 93.53 ± 1.81 H N
16-03 14–25 4.33 ± 0.49 (12) 16.28 ± 4.22 (36) 95.21 ± 0.71 H Y
  1. aMean ± SD (n), n was days excluding those disturbed by research action and irregular recesses
  2. bMean ± SD (n), n was recesses excluding those missing record of female going out or coming back
  3. cMean ± SD, n (constancy) = n (number of daily recesses), nest constancy = (1440 min − t (female staying out of nest)/1440 min) × 100%