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Department Head: 

Prof. Dr. Alexandra-Maria Klein
phone:+49 (0)761 203-67770



Mrs. Ilona Winkler
phone:+49 (0)761 203-3635
fax:+49 (0)761 203-3638


Chair of Nature Conservation
& Landscape Ecology
University of Freiburg
Tennenbacher Str. 4
D-79106 Freiburg




Dr. Judith Trunschke

 20230117-P1174055-2.jpgJudith Trunschke
Web of Science ResearcherID: GEZ-3895-2022
phone: 0761 203 -67771
Room No.  03107



I am fascinated by the enormous variety of floral forms and functions. In my research I address questions related to the origin of this diversity and how it is maintained. In specific, my research focuses on ecological and evolutionary questions in the context of plant-pollinator interactions such as how pollinators select on floral forms and functions, drive phenotypic divergence, and ultimately play a role for reproductive isolation and speciation. I am further interested in how variation in other biotic factors and the abiotic environment alter floral phenotypes and plant-pollinator interactions, and what are the consequences for plant reproductive success. I am particularly enthusiastic about orchids and alpine plants as study systems for their high level of specialization and their need to cope with challenging abiotic conditions and pollinator scarcity, respectively. As an experimental field ecologist, I am passionate about the study of natural populations, but I also combine this with greenhouse experiments and chemical ecology. My current project "GolfBioDivers" includes a biodiversity analysis of ecologically upgraded golf courses.



Summer Semester:

  • M.Sc. Modul (42140) Freilandökologie / (42260) Field Ecology

Winter Semester:

  • B.Sc. Modul (4303/5303) Landschaftsökologie und -management 


Trunschke, J., Alexander, J.M., Junker, R.R., Kudo, G., Richman, S., Bottraud, I. (Guest Editors)

Call for submissions on: ”Climate change effects on alpine plant-pollinator interactions and its multitrophic consequences” for a special issue to be launched in the journal Alpine Botany (2023).

For more information see: 






since 06 2022 Lecturer/Postdoc at the Chair of Nature Conservation and Landscape Ecology, Faculty of Environment and Natural Resources, University of Freiburg
2019 - 2022

Postdoctoral fellow, Key Laboratory of Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany (KIB), Chinese Academy of Sciences (CAS)

2018 - 2019

Postdoctoral visit, Department of Botany and Zoology, Biotic Interactions Lab, Stellenbosch University

2014 -2018
Doctor of Philosophy at the Evolutionary Biology Centre (EBC), Department Plant Ecology and Evolution, University of Uppsala, biology with specialization in ecological botany. Thesis: “Pollinator-mediated selection and the evolution of floral traits in orchids"
2013 Research assistant, Evolutionary Biology Centre (EBC), Department Plant Ecology and Evolution, University of Uppsala
2011 - 2013

Research assistant, Institute of Systematic Botany, Pollination and mating systems, University of Zürich

2010 - 2011 Research assistant, Evolutionary Biology Centre (EBC), Department Plant Ecology and Evolution, University of Uppsala
2008 - 2010 Master of Science in Ecology at the Botanical Institute, Faculty of Science, University of Basel, main subject plant ecology. Thesis: “How altitude and pollination affect flower longevity of alpine species"

Internship, Department of Botany, University of Otago

2005 - 2008

Bachelor of Science in Biology at the Faculty of Bio Science, University of Heidelberg, main subject biodiversity, ecology and evolution. Thesis: “Pollen deposition on stigmata as measurement of pollinator dependence in an alpine plant community in New Zealand”






selected publications

  • Nepal, S., Trunschke, J., Ren, Z.X., Burgess, K.S. & Wang, H. (2024): Flowering phenology differs among wet and dry sub-alpine meadows in southwestern China. AoB PLANTS 16: plae002. Link
  • Nepal, S., Trunschke, J., Ren, Z.X., Burgess, K.S. & Wang, H. (2023): Community-wide patterns in pollen and ovule production, their ratio (P/O), and other floral traits along an elevation gradient in southwestern China. BMC Plant Biology 23: 425. Link
  • Ollerton, J., Trunschke, J., Havens, K., Landaverde-González, P., Keller, A., Gilpin, A.M., Rodrigo Rech, A., Baronio, G.J., Phillips, B.J., Mackin, C., Stanley, D.A., Treanore, E., Baker, E., Rotheray, E.L., Erickson, E., Fornoff, F., Brearley, F.Q., Ballantyne, G., Iossa, G., Stone, G.N., Bartomeus, I., Stockan, J.A., Leguizamón, J., Prendergast, K., Rowley, L., Giovanetti, M., de Oliveira Bueno, R., Wesselingh, R.A., Mallinger, R., Edmondson, S., Howard, S.R., Leonhardt, S.D., Rojas-Nossa, S.V., Brett, M., Joaqui, T., Antoniazzi, R., Burton, V.J., Feng, H.H., Tian, Z.X., Xu, Q., Zhang, C., Shi, C.L., Huang, S.Q., Cole, L.J., Bendifallah, L., Ellis, E.E., Hegland, S.J., Straffon Díaz, S., Lander, T.A., Mayr, A.V., Dawson, R., Eeraerts, M., Armbruster, W.S., Walton, B., Adjlane, N., Falk, S., Mata, L., Goncalves Geiger, A., Carvell, C., Wallace, C., Ratto, F., Barberis, M., Kahane, F., Connop, S., Stip, A., Sigrist, M.R., Vereecken, N.J., Klein, A.M., Baldock, K., & Arnold, S.E.J. (2022): Pollinator-flower interactions in gardens during the COVID-19 pandemic lockdown of 2020. Journal of Pollination Ecology 31: 87-96. Link
  • Zhang, H.-P., Tao, Z.-B., Trunschke, J., Shrestha, M., Scaccabarozzi, D., Wang, H., & Ren, Z.-X. (2022): Reproductive isolation among three nocturnal moth-pollinated sympatric Habenaria species (Orchidaceae). Frontiers of Plant Science 13: 908852. doi: 10.3389/fpls.2022.908852
  • Xu, X., Ren Z.-X., Trunschke, J., Kuppler, J., Zhao, Y., Knopp, E. & Wang H. (2021): Bimodal activity of diurnal flower visitation at high elevation. Ecology and Evolution 1: 13487-13500. doi:10.1002/ece3.8074
  • Trunschke. J., Lunau, K., Pyke, G.H., Ren Z.-X. &Wang, H. (2021): Flower color evolution and the evidence of pollinator-mediated selection. Frontiers of Plant Science 12: 10956. doi:10.3389/fpls.2021.617851
  • Pyke, G.H, Ren, Z.-X., Trunschke, J., Lunau, K. & Wang, H. (2020): Salvage of floral resources through re-absorption before flower abscission. Scientific Reports 10: 15960. doi:10.1038/s41598-020-72994-5
  • Lunau, K., Ren, Z.-X., Fan, X.-Q., Trunschke, J., Pyke, G.H. & Wang, H. (2020): Nectar mimicry: a new phenomenon. Scientific Reports 10: 7030. doi:10.1038/s41598-020-63997-3
  • Trunschke, J., Sletvold, N. & Ågren, J. (2020): Manipulation of trait expression and pollination regime reveal the adaptive significance of spur length. Evolution 74: 597-609. doi:10.1111/evo.13927
  • Pyke, G.H., Ren, Z.-X., Trunschke, J., Lunau, K. & Wang, H. (2019): Changes in floral nectar are unlikely adaptive responses to pollinator flight sound. Ecology. Letters. 23(9): 1421-1422. doi:10.1111/ele.13403
  • Trunschke, J., Sletvold, N. & Ågren, J. (2019): The independent and combined effects of floral traits distinguishing two pollination ecotypes of a moth-pollinated orchid. Ecology and Evolution 9: 1191-1201. doi:10.1002/ece3.4808
  • Trunschke, J., Sletvold, N. & Ågren, J. (2017): Interaction intensity and strength of pollinator-mediated selection. New Phytologist 214: 1381-1389. doi:10.1111/nph.14479
  • Trunschke, J. & Stöcklin, J. (2017): How altitude and pollination success affect flower longevity in six alpine species. Alpine Botany 127: 41-51. doi:10.1007/s00035-016-0176-4
  • Sletvold, N., Trunschke, J., Smit, M., Verbeek, J., Ågren, J. (2016): Strong pollinator-mediated selection for increased flower brightness and contrast in a deceptive orchid. Evolution 70: 716-724. doi:10.1111/evo.1288
  • Cozzolino, S., Fineschi, S., Scopese, G., Trunschke, J., Schiestl, F.P. (2015): Herbivory increases fruit set in Silene latifolia by inducing pollinator-attractive floral volatiles. Journal of Chemical Ecology 41: 622-630. doi:10.1007/s10886-015-0597-3
  • Sletvold, N., Trunschke, J., Wimmergren, C., Ågren, J. (2012): Separating selection by diurnal and nocturnal pollinators on floral display and spur length in Gymnadenia conopsea. Ecology 93: 1880-1891. doi:10.1890/11-2044.1. 
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