Out of actual interest two blacklight-traps were installed at the Vienna University of
Veterinary medecine. One trap was positioned inside the cattle barn the other one beside the
horse paddock. Culicoides spp. are proved to be the main vectors for spreading vectorborne
diseases like Bluetongue disease and African Horse Sickness.
In this diploma thesis a statistical model has been worked out to show the amount of
biting midges as a function of environmental parameters. In a first step Cross Correlation
Maps have been calculated to evaluate which parameters correlate the best with the
Culicoides-catches. Our analysis shows that the parameters, precipitation with r=0,65, global
radiation with r=0,60 and temperature with r=0,49 were the most significant for the Indoortrap.
The parameters global radiation with r=0,76, temperature with r=0,73 and precipitation
with r=0,70 wer the most significant for the Outdoor-trap. The time-period from march 2009
until september 2010 of Culicoides-catches was used for this analysis.
The second step contained the integration of those parameters into a Poisson
regression to show the population dynamics of the midges. The statistical model explains
89% of the variance for the Indoor- and 92 % of the variance for the Outdoor-population
dynamics (temporal resolution 2 weeks).