No evidence of blood parasites in Little Auks (Alle alle) breeding on Svalbard.

Absence of blood parasites in birds occurring in polar regions is believed to be a common phenomenon but only few surveys have been conducted on truly polar bird species. We examined blood parasites in a seabird with an exclusively high-Arctic breeding distribution, the Little Auk (Alle alle). Polymerase chain reaction was used to detect haemosporidians and traditional optical microscopy was used to detect a wider range of haematozoans in birds breeding on Svalbard (Norway).

Identification of blood parasites in old world warbler species from the Danube River Delta.

Warbler species of the families Sylviidae and Acrocephalidae occurring in the Danube river delta are frequently exposed to blood-sucking arthropods that transmit avian blood parasites. We investigated infections by three genera of hemosporidian parasites in blood samples from six warbler species. Altogether in 17 (32.