Feeding Behaviour


Activity Dynamics

Most temperate species have very distinctive seasonal flight periods which vary little from year to year. Tabanids are strong fliers and readily disperse several kilometres in short-term flights. But it was suggested, based on mark-release-recapture studies, that local populations tend to remain in a given area, with dispersal occurring in a series of short flights. Males do not feed on blood, whereas the blood meal size in females varies from 20-25 mg for many Chrysops species to almost 700 mg for Tabanus atratus.

The transmission of Trypanosoma evansi is mechanical in contrast to other Trypanosoma species in e.g., tsetse flies.

Occurrence Maps

Each country has its specific occurrence of CVBDs depending on climate and endemic vectors. See the maps

Clinical Sessions

The following authentic case reports provide insights into selected CVBD cases

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Interesting Links

CVBD and parasito­logical relevant websites. More...

CVBD Digest Articles

Findings from the CVBD symposia. More...