Malarial parasites are supposed to have strong negative fitness consequences for their
hosts, but relatively little evidence supports this claim due to the difficulty of experimentally …

Although it has been suggested that migratory species are exposed to a more diverse
parasite community than sedentary species, this has not previously been demonstrated. To …

Seasonal changes in the impact of parasites on hosts should result in seasonal changes in
immune function. Since both ectoparasites and endoparasites time their reproduction to that …

I compared the feather mite (Acari, Proctophyllodidae) loads of moulting birds with features
of the new plumage that they were growing. I examined 21 samples, each sample …

1. Although a female preference for pairing with brightly plumaged males has been reported
in many species, the reasons for this choice are not fully understood. 2. Parasites have been …

Parasitism has been argued as one of the major costs of breeding sociality in birds.
However, there is no clear evidence for an increased parasite pressure associated with the …

The factors explaining interspecific differences in prevalences of blood parasites in birds are
poorly known. We simultaneously assessed 20 social, ecological, life history, and sampling …

Blood parasites may act as modulators of their hosts' ecology, life histories and fitness. We
studied the prevalence of Plasmodium sp., Haemoproteus sp. and Leucocytozoon sp. and …

During moult, stressors such as malaria and related haemosporidian parasites (eg
Plasmodium and Haemoproteus) could affect the growth rate and quality of feathers, which …

Birds often face various stressors during feather renewing, for example, enduring infection
with blood parasites. Because nutritional resources are typically limited, especially for wild …