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Table 3 Parameter estimates of phylogenetically informed GLS models and GEE models for Haemoproteus

From: Prevalence of blood parasites in seabirds - a review

Variables in best-fit model Prevalence (GLS)
N = 60 spp. (PCR data included, method included in model)
Presence/absence (GEE)
N = 60 spp. (PCR data included)
Ecological parameters   
Distribution (1 = polar, 9 = tropical) 0.023 ± 0.010, P = 0.025 0.287 ± 0.209, P = 0.191
Life-history parameters   
Mean fledging period (days) -0.128 ± 0.155, P = 0.413 -1.389 ± 2.00, P = 0.499
Method (smears or PCR) -0.013 ± 0.049, P = 0.786  
  1. Means ± s.e. are given. Only variables retained in the best-fit models are presented in the table. Excluded variables: Body mass, Nest site, Foraging, chick development, Maximum clutch size, Mean incubation period