Happy to welcome Samir Moura Kadri, a visiting PhD student from São Paulo State University from Botucatu, Brazil . We are hosting Samir here for the Fall 2014 and Winter 2015 terms to study the genetics of aggression in Africanized ‘Killer’ bees! Africanized bees are very defensive, and Samir studied variation in defensiveness across a large number of colonies in Brazil. He is here to apply genomics to understand the genetics of defensiveness in his colonies.
Here is a picture of Samir and a histogram of a measure of colony defensiveness in his study… the number of stings per minute!… yes, the upper limit is 100+ stings per minute… which is pretty nasty…
Thankfully, it was not 100 stings per minute that Samir actually received; he got the data by swinging a little suede-wrapped ball in front of the colonies… brave man! The range of defensive behaviour is very wide… about an order of magnitude difference between ‘happy go lucky africanized colonies ~ 20 stings per minute’ to ‘super aggressive killer bees – 120 stings per min’… bodes well for the genomic study!