Research interests

  • Chemical ecology
  • Functional traits
  • Climate change
  • Plant-pollinator interactions


Scientific projects

Global climate change means not only increasing temperatures but also changes in precipitation events – e.g. reduced precipitation or extended drought events. Drought can modify soil water availability, cause water stress and influence species’ trait expression and growth.

In my PhD thesis, I will improve the understanding of intraspecific differences in floral traits and consequently flower-visitor interactions as well as flower visitor behavior in the context of predicted changes in precipitation (decrease in mean precipitation and elongated periods of drought events).



Höfer RJ, Ayasse M and Kuppler J. Water deficit, nitrogen availability and their combination differently affect floral scent emission in three Brassicaceae species. Journal of Chemical Ecology. Accepted

Höfer RJ, Lindner T, Ayasse M, Kuppler J (2022). Reduced seed set under water deficit is driven mainly by reduced flower numbers and not by changes in flower visitations and pollination. Functional Ecology 00:1–11.

Höfer RJ, Ayasse M and Kuppler J (2021). Bumblebee Behavior on Flowers, but Not Initial Attraction, Is Altered by Short-Term Drought Stress. Frontiers in Plant Science 11: 564802.


  • M.Sc. Rebecca Höfer  
    Institute of Evolutionary Ecology and Conservation Genomics
    Ulm University
    Albert-Einstein-Allee 11
    D-89081 Ulm, Germany
    Tel. +49 (0)731 50 22696
  • Fax +49 (0)731 50 22683
  • Office: M25 4115