Calliphora vicina is widely distributed throughout the Holarctic region.
A frequently synanthropic species, it is also an invasive species and has already followed humans into:
C. vicina is a cosmopolitan species found from the lowlands to above the treeline.
In Europe it is a very common urban species closely associated with humans.
Blowflies are not the only organisms to feed on carrion and there are a number of other invertebrates, bacteria and fungi that will colonise a corpse. However, in more temperate regions where the action of vertebrate scavengers is less important, blowflies are considered the primary agents of decomposition.
They play a central role in the carbon cycle, taking the carbon and other nutrients in the carrion back down the food-chain.
Calliphora vicina populations show local and seasonal variations in density. Find out more about the population biology of blowflies, and the current practices in place to manage them.