Julia Bing

   Department of Molecular Ecology
 Phone:+49 (0)3641 57 1134Max Planck Institute for Chemical Ecology
 Fax:+49 (0)3641 57 1102Hans-Knöll-Straße 8
  emailD-07745 Jena

 Theses  Publications  Presentations  IMPRS  help    to staff list 

PhD Thesis

started in Jan 2015
The real pollination ecology of Nicotiana attenuata
Friedrich-Schiller-Universität Jena, Biological Pharmaceutical Faculty
First Supervisor: Prof. I.T. Baldwin
Co-Supervisor(s): Dr. rer. nat. D. Kessler, Dr. M. Knaden

State Examination Thesis

The better the fit, the bigger the profit – Quantifying the interaction between the pollinator Manduca sexta and Nicotiana-flowers
Friedrich-Schiller-Universität Jena, Biologisch Pharmazeutische Fakultät
First Supervisor: Prof. Dr. B.S. Hansson
Co-Supervisor(s): Dr. M. Knaden, Dr. A. Haverkamp
Retrieved from Examination Paper (hosted by MPI)

During my PhD I want to investigate the real pollination ecology of the wild tobacco plant Nicotiana attenuata. The main aim of my study is to have a close look on the whole pollinator community and to examine pollination success of single floral visitor species. The main pollinators of N.attenuata are the hawkmoth species Manduca sexta, M. quinquemaculata, and Hyles lineata, as well as the hummingbird species Archilochus alexandri. These floral visitors differ in their pollination behavior. Whereas day-active hummingbirds pollinate in the vicinity of their nesting sites, thus only transfer pollen over short distances, it is believed that hawkmoths fly over long distances during night. Furthermore these pollinators differ in flower handling and show different responses to a variety of floral traits such as floral scent or nectar. It is assumed that these various behaviors could entail differences in pollination and consequently in plant´s fitness, especially for outcrossing.
To shed light on the role of these different pollinator species on the pollination success of N. attenuata I will work on questions like: Do the floral visitors of N.attenuata transfer pollen over different distances? What advantages and disadvantages result from the different plant-pollinator interactions for the plant? How effective are the different pollinators from the plant´s perspective? Which floral traits are important for outcrossing? Or to put it straight: Who is the best pollinator? To answer these questions I want to combine field work in N. attenuatas native habitat, semi-natural tent experiments and experiments in the wind tunnel.
last updated on 2015-07-01