Table 2 Results of stepwise linear regression for each bird guild

All guilds

SR = 32.44 + 0.14 × Area - 109.48 × PAR

0.65

38.38

<0.001

Migration strategy

  Residents

R = 24.63 + 0.11 × Area - (- 86.53) × PAR

0.65

38.81

<0.001

  Migrants

M = 6.31 + 0.05 × Area

0.32

20.00

<0.001

Dietary guild

  Insectivores

In = 13.85 + 0.09 × Area - 37.71 × PAR

0.67

41.57

<0.001

  Omnivores

Om = 14.28 + 0.05 × Area - 58.43 × PAR

0.49

19.87

<0.001

Foraging guild

  Canopy

Ca = 14.51 + 0.05 × Area - 54.09 × PAR

0.62

33.63

<0.001

  Understory

Un = 10.44 + 0.05 × Area - 36.33 × PAR

0.47

18.93

<0.001