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 |
- 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).