Skip to main content

Table 1 Resource selection function for used and available focal areas within the non-breeding home ranges of barn owls

From: Influence of prey availability on habitat selection during the non-breeding period in a resident bird of prey

Fixed effects

Main effects β mean (95%CrI)

With interactions β mean (95%CrI)

Intercept

− 13.20 (− 13.31 to − 13.09)

− 13.18 (− 13.30 to − 13.07)

Sex m

− 0.13 (− 0.22 to − 0.07)

− 0.13 (− 0.20 to − 0.06)

Habitat category

  

 Intensive grassland

0.25 (0.07 to 0.44)

0.21 (0.03 to 0.39)

 Extensive grassland

0.07 (− 0.18 to 0.29)

− 0.13 (− 0.40 to 0.17)

 Forest

− 0.60 (− 0.90 to − 0.33)

− 0.64 (− 0.92 to − 0.34)

 Urban area

0.29 (0.08 to 0.48)

0.29 (0.05 to 0.60)

Biodiversity structures (present)

0.08 (− 0.10 to 0.28)

− 0.003 (− 0.19 to 0.20)

Structural richness

0.03 (− 0.05 to 0.11)

− 0.03 (− 0.20 to 0.11)

Intensive grassland × Biodiv. structures

 

0.13 (− 0.01 to 0.28)

Extensive grassland × Biodiv. structures

 

0.35 (0.10 to 0.57)

Forest × Biodiv. structures

 

0.16 (− 0.11 to 0.43)

Urban area × Biodiv. structures

 

0.07 (− 0.15 to 0.28)

Random effects

Variance (± sd)

Variance (± sd)

Deployment (intercept)

0.19 (± 0.44)

0.18 (± 0.43)

  Intensive grassland (slope)

0.49 (± 0.70)

0.49 (± 0.70)

  Extensive grassland (slope)

0.62 (± 0.79)

0.64 (± 0.80)

  Forest (slope)

1.12 (± 1.06)

1.11 (± 1.05)

  Urban area (slope)

0.61 (± 0.75)

0.63 (± 0.80)

  Biodiv. structures 1 (slope)

0.57 (± 0.75)

0.56 (± 0.75)

  Structural richness (slope)

0.10 (± 0.32)

0.10 (± 0.32)

  1. We present the mean estimates of β and associated 95% credible interval of the posterior distribution of a logistic mixed effect model based on 65 individuals. Sex, habitat category, biodiversity structures and structural richness were introduced as explanatory variables, tag deployment as random intercept, and habitat category, biodiversity structures and structural richness as random slopes. The reference category is crop-rotation without biodiversity structures. First model without and second with interaction of habitat category with biodiversity structures
  2. Effects whose credible interval does not include 0 are shown in bold