Variation in abundance and habitat relationship of three understory insectivorous birds in a disturbed landscape of Neotropical dry forest of Colombia

Table 2 Averaging models and 95% confidence intervals for generalized linear model (Poisson distribution) of White-bellied Antbird, Barred Antshrike and Pale-breasted Spinetail at the study area, El Quimbo hydroelectric project, Huila, Colombia, 2018–2019

Species	Variable	Coefficient in the model	Lower	Upper	Variables level of support
White-bellied Antbird	Intercept	0.8763	0.1591	4.8273	High
	Shrubland area	1.1329	1.0339	1.2413	High
	Forest area	1.1792	1.0797	1.2878	High
	Elevation	0.9992	0.9968	1.0005	High
	Typecover Shrubland	0.9676	0.4632	1.1528	High
	Typecover Thicket	1.001	0.7005	1.4788	High
	Slope	1.0003	0.9917	1.0116	High
	Leaf litter depth	0.9985	0.8767	1.1042	High
	Zone 2	0.9729	0.495362	1.3414	High
	Zone 3	0.9272	0.2943	1.1026	High
Barred Antshrike	Intercept	15.5486	2.596	93.092	High
	Elevation	0.9977	0.9958	0.9995	High
	Typecover Shrubland	1.2524	0.9029	1.7372	High
	Typecover Thicket	1.4307	1.0515	1.9446	High
	Slope	0.9991	0.9876	1.0046	High
	Shrubland area	1.0029	0.9553	1.0829	High
	Edge	0.999	0.9997	1.0001	High
	Zone 2	0.4225	0.2705	0.66	High
	Zone 3	0.2624	0.1562	0.4408	High
Pale-breasted Spinetail	Intercept	0.3233	0.1029	1.01578	High
	Typecover Shrubland	3.0214	1.9618	4.6531	High
	Typecover Thicket	1.9212	1.2184	3.0296	High
	Elevation	1.0003	0.9997	1.0022	High
	Slope	0.9991	0.9864	1.0065	High
	Edge	1	0.9998	1.0002	High
	Relative humidity	1.000326	0.9845	1.019	High
	Zone 2	1.0082	0.7256	1.5801	High
	Zone 3	0.9693	0.5132	1.163	High

Variables are referenced as follows: Shrubland area, area of shrubland in the buffer around the plot (ha); Forest area, area of forest in the buffer around the plot (ha); Elevation, elevation at the plot (m); Typecover, vegetation cover type following Edwards (1983); Slope, slope at the plot (%); Leaf litter depth, average leaf litter depth at the plot measured at each quadrant (cm); Edge, edge index in the buffer around the plot (m); Relative humidity, average relative humidity; Zone, zone (1, 2, or 3).

ISSN: 2053-7166