Alumni
Diploma and Masters students (accomplished: 25)
Tiziana Pedrotta (2011) Non-target effects of a biological control agent against Rumex obtusifolius; (co-supervision with Urs Schaffner, CABI Europe-Switzerland), in the framwork of a CTI financed project;); Department of Biology, Ecology & Evolution, University of Fribourg. Website
Vanessa Schneider (2011) Host specificity studies with Pyropteron chrysidiforme (Lep.: Sesiidae), a potential biological control agent for Rumex species (co-supervision with co-supervision with Urs Schaffner, CABI Europe-Switzerland), in the framwork of a CTI financed project); Department of Biology, Ecology & Evolution, University of Fribourg. Website
Elham Tarboush
(2011) Ecophysiological traits underlying invasion success in Centaurea stoebe (co-supervision with Patrik Mraz and Min Hahn); Department of Biology, Ecology & Evolution, University of Fribourg. Website
Emily Gex-Fabry (2010) Phylogenetic relationship in the Centaurea stoebe s.l. species group (co-supervision with Patrik Mraz), in collaboration with Nuria Garcia-Jacas, Botanic Institute of Barcelona; Department of Biology, Ecology & Evolution, University of Fribourg. Website
Alexandre Farkas (2009) Populations of mixed ploidy of Centaurea maculosa, how can they stand against the theory? (co-supervision with Gillianne Bowman and Patrik Mraz); Department of Biology, Ecology & Evolution, University of Fribourg.Geraldine Schwaller (2008) A clearwing moth to control Rumex populations in Europe? Preliminary studies on the weed and its potential control agent, (co-supervised by Urs Schafffner, CABI Bioscience Europe-Switzerland, Delémont); Department of Biology, Ecology & Evolution, University of Fribourg. Website
Ben Hall - (2008) Investigations into Agapeta zoegana (L.) (Lepidoptera: Tortricidae), specialist root feeder of invasive weed Centaurea maculosa Lam (Asteracae): Does oviposition preference support Evolution of Increased Competitive Ability?j (ointly with Imperial College at Silwood Park, Ascot, University of London); Department of Biology, Ecology & Evolution, University of Fribourg. Website
Renate Zindel (2008) The native ladybird species and the potential impact of an exotic ladybird, Harmonia axyridis (Pallas), on native species in Switzerland (co-supervised Marc Kenis, CABI Europe-Switzerland, Delémont); Department of Biology, Ecology & Evolution, University of Fribourg.
Lydia Buholzer (2008) Does fire promote germination and establishment of the endangered plant species Blitum virgatum? (co-supervised by Thomas Wohlgemuth and Barbara Moser, WSL); Department of Biology, Ecology & Evolution, University of Fribourg.
Christine Bollig (2007) Life history traits, age distribution and herbivore performance in diploid and tetraploid Centaurea maculosa; Eberhard Karls Universität Tübingen.
Carole Rapo October (2006) Evolution in an invasive plant in the presence and absence of specialist biological control agents (co-supervised by Urs Schafffner, CABI Bioscience Europe Switzerland, Delémont); Department of Biology, Ecology & Evolution, University of Fribourg.
Céline Lakmini Girard (2006). Pollen competition between two populations of Plantago lanceolata in a biodiversity restoration context (co-supervised by by Lisèle Galli-Crémieux); Department of Biology, Ecology & Evolution, University of Fribourg.
Daniel Salzmann (2004) Effect of reduced photosynthetic rate in Senencio vulgaris on resistance and tolerance to the rust fungus Puccinia lagenophorae (co-supervised by Richard John Handley); Department of Biology, Ecology & Evolution, University of Fribourg.
Michele Gusberti (2004) Seedling establishment of Picea abies in relation to nurse structures (co-supervised by Chris Smit); Department of Biology, Ecology & Evolution, University of Fribourg.
Beatrice Vonlanthen (2003 ) The Effect of
seed origin on germination, early growth and on the attraction of
flower visitors (co-supervised by Armin Bischoff); Department of
Biology, Ecology & Evolution, University of Fribourg.
Serena Rigamonti (2000) Phenotypic
plasticity in Senecio vulgaris populations from contrasting habitat types and implications for its
biological control; Institut de Biologie végétale,
Université de Fribourg.
Michael Lutz (2000) Faunistic success control of ecological compensation areas by means of ground beetles (Coleoptera: Carabidae) (co-supervision with Lukas Pfiffner und Henrik Luca, FIBL); Institut de Biologie végétale, Université de Fribourg.
Federico Rossi (1999) Quantification of the effects of herbicides on the disease epidemic caused by the rust fungus Puccinia lagenophorae Cooke on the plant Senecio vulgaris L. (co-supervision with Jos Frantzen), Institut de Biologie végétale, Université de Fribourg.
Katharina Schumacher (1998) Phänotypische Plastizität in Senecio vulgaris anhand der Pyrrolizidinalkaloidbildung (co-supervision); ETH Zürich.
Urs Treier (1998) Impact of the rust pathogen Puccinia lagenophorae on interspecific competition between Senecio vulgaris and Capsella bursa-pastoris (co-supervision with Jos Frantzen), Institut de Biologie végétale, Université de Fribourg.
Ursula Traversi (1998) Intraspecific competition between Senecio vulgaris biotypes: effects of density, polyculture and infection by the rust fungus Puccinia lagenophorae; Institut de Biologie végétale, Université de Fribourg.
Matthias Villiger (1998) Laborversuche und Halbfreiversuche mit dem 2-Punkt-Marienkäfer (Adelia bipunctata) und einer Schwebfliege (Episyrphus balteatus) zur Regulierung der Mehligen Apfelblattlaus (Dysaphis plantaginea) und der Faltenläuse (Dysaphis spp.) am System "Apfelsämling" (co-supervison with Eric Wyss, FIBL), Institut de Biologie végétale, Université de Fribourg.
Judith Wirth (1997) Vergleich von drei Linien des Rostpilzes Puccinia lagenophorae (co-supervison with Jos Frantzen), Institut de Biologie végétale, Université de Fribourg.
Marion Hilker (1997) Impact of the pathogen Puccinia lagenophorae Cooke on the annual plant Senecio vulgaris L. allied to phenotypic differences in early plant development; University of Hannover, Germany.
Jacques Perritaz (1997): Bandes culturales en blé d'hiver: flore et récoltes comparées entre sols acides et alcalins. Institut de Biologie végétale, Université de Fribourg.
Raphael Neuburger (1997) Auswirkung der Stickstoffverfügbarkeit im Boden auf die Pflanzen-Herbivoren Beziehung am Beispiel von Senecio vulgaris in einem Agrarsystem mit Buntbrachen (co-supervision; ETH-Zürich).
Stefanie Rieger (1996) Influence of the rust fungus Puccinia lagenophorae on the competition between the annual weed Senecio vulgaris and the crop sellery; ETH-Zürich.
Isabel Landau (1993) Cnicin, ein Sesquiterpene Lactone der Gefleckten Flockenblume, Centaurea maculosa Lam.: Einfluss auf Spezialisten- und Generalisten-Herbivoren; Zoologisches Museum der Universität Zürich.
Christine Ziegler (1991) Sesiid moths on Euphorbia spp.: speciation and herbivore effects; Institute of Zoology, University of Basel.
Sylvia Martinez (1991) Einflüsse der mütterlichen Umwelt und der Samengrösse auf das Rosettenwachstum von Centaurea maculosa (Asteraceae); Institute of Botany, University of Basel.
Thomas Steinger (1990) Separate and joint
effect of plant competition, nitrogen supply and herbivory on resource
allocation (physiology, growth and reproduction) of Centaurea maculosa;
Institute of Plant Physiology, University of Basel.
