Avoiding perceived past resource use of potential competitors affects niche dynamics in a bird community

Table 2 Summaries of the models explaining symbol preferences of the male and female great tits with different immigration status

Sex	Parameter	Posterior mean	95% credibility interval
Sex	Parameter	Posterior mean	Lower bound	Upper bound
Male	Trait (symbol indicates flycatcher)	−4.24	−9.77	2.00
	Trait (symbol indicates tit)	−4.38	−9.89	2.06
	Selection day	0.253	−0.152	0.611
	Selection.day²	−0.00303	−0.00806	0.00321
	Male status (philopatric)	−27.4	−50.3	−7.99
	Selection day × Male status (philopatric)	2.18	0.533	3.97
	Selection.day² × Male status (philopatric)	−0.0432	−0.0792	−0.0115
Female	Trait (symbol indicates flycatcher)	−7.49	−13.8	−2.44
	Trait (symbol indicates tit)	−7.61	−12.9	−1.63
	Selection day	0.440	0.0968	0.789
	Selection.day²	−0.00590	−0.0108	−0.00107
	Female status (philopatric)	−23.8	−51.9	0.555
	Selection day × Female status (philopatric)	2.29	0.204	4.88
	Selection.day² × Female status (philopatric)	−0.0524	−0.109	−0.00599

Parameter estimates (posterior means) and their 95% highest posterior density credibility intervals of fixed effects of the generalized linear mixed-effects model fitted by MCMC simulation to the data on great tit symbol choices including the effects of female and male immigration status (immigrant/philopatric). The parameter ‘trait’ denotes the response variables (i.e. the probabilities of choosing a symbol associated with collared flycatcher or tit nests) in this multinomial logistic regression model. See Additional file 1: Table S4 for parameter estimates of the starting models. Random effects included female and male identities (ring numbers) by allowing different variances among individuals in different years.

ISSN: 2730-7182