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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 wi
Egg Date + NestAge + Year 10 − 335.254 0.000a 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 0.000b 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
  1. 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 (wi)
  2. aMinimum AICc value = 690.557
  3. bMinimum AICc value = 652.728