Research activity does not affect nest predation rates of the Silver-throated Tit, a passerine bird building domed nests

Hu, Qian; Wen, Ye; Yu, Gaoyang; Yin, Jiangnan; Guan, Haohui; Lv, Lei; Wang, Pengcheng; Xu, Jiliang; Wang, Yong; Zhang, Zhengwang; Li, Jianqiang

doi:10.1186/s40657-020-00214-9

Avian Research

Table 2 Model selection results of the best-supported model set (ΔAICc < 4) for daily nest survival rate at the egg and nestling stages of Silver-throated Tits

From: Research activity does not affect nest predation rates of the Silver-throated Tit, a passerine bird building domed nests

Stages	Models	k	LogLik	ΔAICc	w_i
Egg	Date + NestAge + Year	10	− 335.254	0.000^a	0.208
	Date + Filming + NestAge + Year	11	− 335.043	1.588	0.094
	Date + NestAge + NestHeight + Year	11	− 335.100	1.703	0.089
	Date + NestAge + Visit + Year	11	− 335.147	1.798	0.085
	Date + Filming + NestAge + NestHeight + Year	12	− 334.895	3.303	0.040
	Date + NestAge + NestHeight + Year	12	− 334.994	3.502	0.036
	Date + Filming + NestAge + Visit + Year	12	− 335.004	3.521	0.036
	Date + Year	9	− 338.158	3.801	0.031
	Date + NestAge	3	− 344.210	3.869	0.030
	NestAge + Year	9	− 338.254	3.992	0.028
Nestling	Date + NestAge + Year	10	− 316.314	0.000^b	0.085
	Date + Year	9	− 317.421	0.196	0.077
	Date + NestAge + NestHeight + Year	11	− 315.504	0.401	0.069
	Date + NestHeight + Year	10	− 316.606	0.583	0.063
	Date + NestAge + Visit + Year	11	− 315.922	1.236	0.046
	Date + Visit	3	− 324.022	1.327	0.044
	Date + NestAge + Visit	4	− 323.084	1.458	0.041
	Date + NestAge + NestHeight + Visit + Year	12	− 315.075	1.564	0.039
	Date	2	− 325.185	1.647	0.037
	Date + Filming + NestAge + Year	11	− 316.311	2.013	0.031
	Date + Visit + Year	10	− 317.321	2.014	0.031
	Date + NestHeight + Visit	4	− 323.447	2.184	0.028
	Date + Filming + Year	10	− 317.413	2.198	0.028
	Date + NestAge + NestHeight + Visit	5	− 322.491	2.281	0.027
	Date + NestHeight + Visit + Year	11	− 316.486	2.364	0.026
	Date + Filming + NestAge + NestHeight + Year	12	− 315.495	2.404	0.025
	Date + Filming + NestHeight + Year	11	− 316.602	2.597	0.023
	Date + NestAge	3	− 324.754	2.790	0.021
	Date + NestHeight	3	− 324.760	2.802	0.021
	Date + Filming + NestAge + Visit + Year	12	− 315.752	2.918	0.020
	Date + Filming + Visit	4	− 323.862	3.013	0.019
	Date + Filming + NestAge + Visit	5	− 322.894	3.087	0.018
	Date + Filming + NestAge + NestHeight + Visit + Year	13	− 314.924	3.285	0.016
	Date + Filming	3	− 325.009	3.301	0.016
	Date + Filming + Visit + Year	11	− 317.186	3.764	0.013
	Date + Filming + NestHeight + Visit	5	− 323.292	3.882	0.012
	Date + Filming + NestAge + NestHeight + Visit	6	− 322.309	3.927	0.012
	Date + NestAge + NestHeight	4	− 324.335	3.960	0.012

Candidate variables included Visit (researchers’ nest visit), Filming (nest filming), Date (for the egg-stage analysis, date is the number of days from the date when the first egg of a nest was laid to the date when the first egg of the population was laid in each year, i.e. laying date; for the nestling-stage analysis, date is the number of days from the date when nestlings of a nest hatched to the date when the first nestling of the population hatched in each year, i.e. hatching date), Year, NestAge (number of days after the first egg of the nest was laid or number of days after the nestlings of the nest hatched for the analyses of the egg-stage and nestling stages, respectively), NestHeight (nest height). k is the number of model parameters. LogLik is the log-likelihood. Models are ranked based on the difference in corrected Akaike’s Information Criterion (ΔAICc) and model weight (w_i)
^aMinimum AICc value = 690.557
^bMinimum AICc value = 652.728

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ISSN: 2053-7166

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