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

Zoological Studies

Table 1 Niche breadth values (Rao's quadratic entropy) and 95% confidence intervals

Species	n	Niche breadth	LCI	UCI
(a)
Brown creeper	17	0.13	0.11	0.17
Pygmy nuthatch	34	0. 28	0.19	0.35
White-breasted nuthatch	19	0.14	0.09	0.18
(b)
Brown creeper	24	0.11	0.08	0.17
Pygmy nuthatch	50	0.12	0.09	0.19
White-breasted nuthatch	29	0.11	0.08	0.16

Niche breadth values and 95% confidence intervals for brown creepers (Certhia americana), pygmy (Sitta pygmaea), and white-breasted nuthatches (S. carolinensis) based on sightings and foraging use of trees in (a) disturbed and (b) undisturbed forest sites.