Road induced edge effects on a forest bird community in tropical Asia

Table 2 Estimates of coefficients of variables that suggest significant influence on avian guild species richness and abundance, standard errors (SE) and their 85% confidence intervals (CI) at the Sakaerat Environmental Research Station in 2014–2015 derived from model averaging

Variables estimated	Coefficient	SE	Lower 85% CI	Upper 85% CI
Richness
Edge	0.09	1.22	− 1.67	1.84
D0	0.33^a	0.19	0.05	0.61
Edge * D0	− 0.23^a	0.15	− 0.46	− 0.01
C0	− 0.20	0.20	− 0.50	0.08
Edge * C0	0.35^a	0.09	0.21	0.49
C5	− 0.18	0.22	− 0.50	0.13
Abundance
Edge	0.97	0.86	− 0.26	2.21
D0	0.49^a	0.16	0.26	0.72
Edge * D0	− 0.29^a	0.14	− 0.49	− 0.08
C5	− 0.32^a	0.19	− 0.59	− 0.05
C0	− 0.25	0.25	− 0.62	0.11

Edge represents distance to forest edge, D0 is stem density of vegetation with height between 0.5–3 m, C0 is percentage cover of vegetation at < 0.5 m, and C5 is percentage cover of vegetation at 5–10 m
^aIndicates estimated coefficients of variables that had a significant influence on avian guild richness and abundance

ISSN: 2053-7166