Prevalence of blood parasites in seabirds - a review

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

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

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

ISSN: 1742-9994