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Dr. Karen de Jong

Curriculum vitae

Postdoctoral Researcher, Institute for Zoology, Research Station Grietherbusch, University of Cologne
2013-2015 Postdoctoral Researcher, Animal Evolutionary Ecology, Institute for Evolution and Ecology, Department of Biology, University of Tübingen
2012-2013 Parental leave
2011-2012 Researcher, Systematics and Evolution Group, Section of Natural History, Museum of Natural History and Archaeology, Norwegian University for Science and Technology, Trondheim, Norway
2006–2011 PhD Biology, NTNU, Trondheim, Norway
1998-2005 BSc and MSc Biology, Wageningen University, the Netherlands



Research interests

I am interested in how changing environments, and in particular increasing noise-levels, affect sexual selection and reproductive potential. My favourite model systems are gobies: small bottom dwelling fish that can live under extreme circumstances. Males court females both visually and acoustically, so sexual communication can be affected by noise. Gobies live basically everywhere in the world, from pools in the desert of Australia to anoxic deep seas in Africa, but I have studied them in slightly less exotic places, such as Sweden, Norway, Germany and Scotland.

ORCID: 0000-0001-9239-7268
ResearcherID: D-1808-2010

personal webpage:



Recent publications

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Bleeker, K., de Jong, K., van Kessel, N., Hinde. C.A., Nagelkerke, L.A.J. (2017): Evidence for ontogenetically and morphologically distinct alternative reproductive tactics in the invasive Round Goby Neogobius melanostomus. PLOS ONE 12(4): e0174828. doi: 10.1371doi:10.1371/journal.pone.0174828

de Jong K, Schulte G, Heubel KU (2017): The noise egg: A cheap and simple device to produce low-frequency underwater noise for laboratory and field experiments. Methods in Ecology and Evolution 8:268–274. DOI: 10.1111/2041-210X.12653


de Jong, K., Schulte, G. & Heubel, K. U. (2016): The noise egg: A cheap and simple design  to  study  the  effect  of  noise  on  aquatic  animals.  Methods in Ecology and Evolution: doi:10.1111/2041-210X.12653

de Jong, K., Amorim, M. C. P., Fonseca, P. J., Klein, A. and & Heubel, K. U. (2016): Noise  affects  acoustic  courtship  behavior  similarly  in  two  species  of  gobies. Proceedings of Meetings on Acoustics 27: 010018, doi: 10.1121/2.0000272


Wacker, S., Mobley, K., Myhre, L., Forsgren, E., de Jong, K., Amundsen, T. (2013): Operational sex ratio but not density affects sexual selection in a fish. Evolution 67(7): 1937-49, doi: 10.1111/evo.12092


de Jong, K., Forsgren, E., Sandvik, H. & Amundsen, T. (2012): Measuring mating competition correctly: available evidence supports operational sex ratio theory Behavioral Ecology 23: 1170-1177, doi:10.1093/beheco/ars094

Myhre, L.C., de Jong, K., Forsgren, E. & Amundsen, T. (2012): Sex Roles and Mutual Mate Choice Matter during Mate Sampling. The American Naturalist 179: 741-755, doi: 10.1086/665651

Wacker, S., de Jong, K., Forsgren, E. & Amundsen, T. (2012):  Large males fight and court more across a range of social environments: an experiment on the two spotted goby Gobiusculus flavescens. Journal of Fish Biology 8: 21-34, doi:10.1111/j.1095-8649.2012.03296.x


de Jong, K., Wacker, S., Amundsen, T., Forsgren, E. (2009): Do operational sex ratio and density affect mating behaviour? An experiment on the two-spotted goby. Animal Behaviour 78: 1229-1238, doi:10.1016/ j.anbehav.2009.08.006*


de Jong, K., Bouton, N., Slabbekoorn, H. (2007): Azorean rock-pool blennies produce size-dependent calls in a courtship context. Animal Behaviour 74: 1285-1292, doi:10.1016/j.anbehav.2007.02.023


Heilmann, L.C., de Jong, K., Lent, P.C., de Boer, W.F. (2006): Will tree euphorbias (Euphorbia tetragona and Euphorbia triangularis) survive under the impact of black rhinoceros (Bicornis diceros minor) browsing in the Great Fish River Reserve, South Africa? African Journal of Ecology 44 (1): 87-94