Anya Theis

Universität Basel,
Zoologisches Institut
Vesalgasse 1
CH-4051 Basel


+41 (0)61 207 03 04

+41 (0)61 207 03 01


Anya Theis

PhD student in the group of Walter Salzburger. Works on the evolution of Cichlids of Lake Tanganjika.

Current research

Cichlids of the tribe Haplochromini have a special breeding behaviour: the female lays the eggs in a pit and snaps them up into the mouth to breed them there for a few days. The males are carrying conspicuous egg-spots on the anal fin, which have an important function in courtship and spawning behaviour. I want to examine if there is a difference in attractiveness, mating success and fertilization rates between males (Astatotilapia burtoni) with natural and altered egg-spots.

...and else?

My favorite leisure activity is to travel around the world! Other hobbies are dancing ballet, taking pictures, diving,...

Curriculum vitae

Born 1985 in Basel, Switzerland
2011-present PhD student at the Department of Evolutionary Biology at the University of Basel
2008-2010 at the Department of Evolutionary Biology at the University of Basel
2005-2008 of animal- and plant science at the University of Basel


  • Theis A, Salzburger W, Egger B. 2012. The Function of Anal Fin Egg-Spots in the Cichlid Fish Astatotilapia burtoni. PLoS One 7(1): e29878.
  • Egger B, Klaefiger Y, Theis A, Salzburger W. 2011. A Sensory Bias Has Triggered the Evolution of Egg-Spots in Cichlid Fishes. PLoS One 6(10): e25601.