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Table 2 Niche overlap for tree use among the three species studied

From: Niche partitioning among three tree-climbing bird species in subtropical mountain forest sites with different human disturbance

Species Brown creeper Pygmy nuthatch White-breasted nuthatch
(a)    
 Brown creeper 1 0.523 0.691
 Pygmy nuthatch 0.523 1 0.477
 White-breasted nuthatch 0.691 0.477 1
(b)    
 Brown creeper 1 0.413 0.769
 Pygmy nuthatch 0.413 1 0.277
 White-breasted nuthatch 0.769 0.277 1
  1. Niche overlap for tree use among brown creepers (Certhia americana), pygmy (Sitta pygmaea), and white-breasted nuthatches (S. carolinensis) in (a) disturbed and (b) undisturbed forest, determined by Pianka's index. After 5,000 Monte Carlo simulations, the observed mean tree use overlap in the disturbed forest (0.753) differed from the expected mean (0.614) for tree use overlap (p < 0.01). In the undisturbed forest, the observed mean tree use overlap (0.682) differed from the expected mean (0.192) tree use overlap (p < 0.01).