Table 2.

Model results of trophic position as a function of nest habitat. Correlations between the residuals of these models provide an estimate of assortative mating independent of habitat isolation.

A. Males	Estimate	Std. error	t value	P
(Intercept)	2.972	0.0468	63.552	<0.0001
Nest Depth	0.156	0.0547	2.850	0.0054
Vegetation Cover	0.0596	0.0328	1.814	0.073
Wood Cover	0.0412	0.0347	1.189	0.24
Shore	0.139	0.0373	3.734	0.00032
B. Females	Estimate	Std. error	t value	P
(Intercept)	2.952	0.0570	51.809	<0.0001
Nest depth	−0.0783	0.0666	−1.175	0.24
Vegetation cover	0.0647	0.0399	1.621	0.11
Wood cover	0.0192	0.0416	0.461	0.65
Shore	0.135	0.0453	2.971	0.0038