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Table 4 Comparisons of variables between successful and failed nests of the Emei Shan Liocichla at Laojunshan National Nature Reserve, Sichuan, China

From: Nest predators, nest-site selection and nest success of the Emei Shan Liocichla (Liocichla omeiensis), a vulnerable babbler endemic to southwestern China

Variables Successful nests (n = 18) Failed nests (n = 31) t value and significance Z value and significance
AL (m) 1711.2 ± 37.3 1682.4 ± 30.9   ‒0.902 ns
SA 1.8 ± 0.2 1.9 ± 0.2   ‒0.274 ns
TH (m) 3.0 ± 1.1 3.4 ± 0.8   ‒0.216 ns
TC (%) 11.9 ± 4.6 6.4 ± 2.2   ‒0.192 ns
SH (m) 3.1 ± 0.2 3.0 ± 0.1 0.479 ns  
SC (%) 44.7 ± 7.1 39.1 ± 4.8 0.678 ns  
BH (cm) 195.3 ± 12.7 198.0 ± 10.0   ‒0.437 ns
BC (%) 58.0 ± 9.3 57.4 ± 6.1 0.054 ns  
HH (cm) 21.6 ± 3.8 32.7 ± 5.1   ‒1.401 ns
HC (%) 11.5 ± 3.1 19.2 ± 2.8 ‒1.744 ns  
LA 2.8 ± 0.1 2.8 ± 0.1   ‒0.526 ns
DF (m) 14.1 ± 1.3 14.8 ± 1.6 ‒0.322 ns  
DW (m) 22.8 ± 3.5 25.6 ± 3.2 −0.561 ns  
  1. AL altitude, SA slope aspect, TH mean height of trees, TC tree cover, SH mean height of shrubs, SC shrub cover, BH mean height of bamboo, BC bamboo cover, HH mean height of herb, HC herb cover, LA liana abundance, DF distance to forest edge or gap, DW distance to water
  2. ns not significant