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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