Institut für Geographie und Geoökologie (IFGG)
Dr. Dr. phil.-nat. Jesse Machiel Kalwij

Dr. Dr. phil.-nat. Jesse Machiel Kalwij

  • Karlsruher Institut für Technologie (KIT)
    Institut für Geographie und Geoökologie
    Kaiserstr. 12
    76131 Karlsruhe

Jesse Kalwij

Biogeographie, Pflanzenökologie, Ökologie von Straßensäumen, Räumliche Ökologie


  • Räumlich-zeitliche Dynamik von nicht-heimischen Pflanzen (Neobiota) in u.A. montanen Ökosystemen
  • Inselbiogeographie der sub-Antarktik
  • Pflanze-Tier Interaktion im Ökosystem Savanne
  • Anwendung von Drohnen in der Vegetationsökologie


Curriculum vitae

2019-heute Wiss. Mitarbeiter (Postdoc), Arbeitsgruppe Vegetationskunde und Biogeographie, Karlsruher Institut für Technologie (KIT)
2018-heute Externer wiss. Mitarbeiter, Kiel Pharmacognosy Group, Christian-Albrechts-Universität zu Kiel
2013-heute Externer wiss. Mitarbeiter, Centre for Ecological Genomics & Wildlife Conservation, University of Johannesburg, Südafrika
2015-2018 Wiss. Mitarbeiter (Postdoc), Institut für Ökosystemforschung, Christian-Albrechts-Universität zu Kiel
2014-2015 Researcher, Institute of Botany, Brünn, Tschechien
2009-2013 Vanemteadur, Institute of Ecology and Earth Sciences, University of Tartu, Estland
2005-2007 Postdoc, Department of Botany and Zoology, Stellenbosch University, Südafrika
2007-2009 Postdoc, Centre of Excellence for Invasion Biology, Stellenbosch University
2002-2005 Doktorand, Eidg. Forschungsanstalt für Wald, Schnee und Landschaft WSL (WSL), Birmensdorf ZH, Schweiz
2001 Vegetationsökologe, Wageningen University, Niederlande
2000-2001 Botaniker, Tau Consultants (Pty) Ltd., Okavango Delta, Botswana
1994-2000 BSc und MSc Grad in Biologie, Wageningen University, Niederlande



  • Redaktionsbeirat: BioInvasion Records (2015 - 2019), Koedoe (2019 - heute), Plant Ecology (2015 - heute)

  • Mitgliedschaften: International Association for Vegetation Science (IAVS), Nederlands-Vlaamse vereniging voor ecologie (NecoV)



  • Makroökologie (MSc Geoökologie, WiSe, LV-Nr. 6111205)
  • Vegetationskundliche Geländeübung (BSc Geoökologie, SoSe, LV-Nr. 6111056)
  • Verfahrenskurs GIS (BSc Geoökologie, WiSe & SoSe, LV-Nr. 6111087)
  • Forschungsprojekt Ökologie (MSc Geoökologie, SoSe, LV-Nr. 6111209)
  • Webmanager


Kalwij, J. M.; Medan, D.; Kellermann, J.; Greve, M.; Chown, S. L. (2019). Vagrant birds as a dispersal vector in transoceanic range expansion of vascular plants. Scientific reports, 9 (1), Article no: 4655. doi:10.1038/s41598-019-41081-9VolltextVolltext der Publikation als PDF-Dokument
Tay, J. Y. L.; Erfmeier, A.; Kalwij, J. M. (2018). Reaching new heights: can drones replace current methods to study plant population dynamics?. Plant ecology, 219, 1139–1150. doi:10.1007/s11258-018-0865-8
Kalwij, J. M.; Steyn, C.; Robertson, M. P.; Le Roux, P. C. (2017). Alien plant species that invade high elevations are generalists: support for the directional ecological filtering hypothesis. Journal of vegetation science, 28 (2), 337–346. doi:10.1111/jvs.12477
Haussmann, N. S.; Kalwij, J. M.; Bezuidenhout, S. (2016). Some ecological side-effects of chemical and physical bush clearing in a southern African rangeland ecosystem. South African journal of botany, 102, 234–239. doi:10.1016/j.sajb.2015.07.012
Kalwij, J. M.; Robertson, M. P.; Van Rensburg, B. J. (2015). Annual monitoring reveals rapid upward movement of exotic plants in a montane ecosystem. Biological invasions, 17 (12), 3517–3529. doi:10.1007/s10530-015-0975-3
Vild, O.; Kalwij, J. M.; Hédl, R. (2015). Effects of simulated historical tree litter raking on the understorey vegetation in a central European forest. Applied vegetation science, 18 (4), 569–578. doi:10.1111/avsc.12180
Barnaud, A.; Kalwij, J. M.; Berthouly-Salazar, C.; McGeoch, M. A.; Van Vuuren, B. J. (2013). Are road verges corridors for weed invasion? Insights from the fine-scale spatial genetic structure of Raphanus raphanistrum. Weed research, 53 (5), 362–369. doi:10.1111/wre.12033
Chown, S. L.; Le Roux, P. C.; Ramaswiela, T.; Kalwij, J. M.; Shaw, J. D.; McGeoch, M. A. (2013). Climate change and elevational diversity capacity : do weedy species take up the slack?. Biology letters, 9 (1), Article no: 20120806. doi:10.1098/rsbl.2012.0806
Haussmann, N. S.; Rudolph, E. M.; Kalwij, J. M.; McIntyre, T. (2013). Fur seal populations facilitate establishment of exotic vascular plants. Biological conservation, 162, 33–40. doi:10.1016/j.biocon.2013.03.024
Kalwij, J. M.; McGeoch, M. A.; Barnaud, A.; Van Vuuren, B. J. (2013). Patterns of weed invasion: evidence from the spatial genetic structure of Raphanus raphanistrum. Biological invasions, 15, 2455–2465. doi:10.1007/s10530-013-0465-4
Kalwij, J. M.; Smit, C. (2013). How authors can maximise the chance of manuscript acceptance and article visibility. Learned publishing, 26 (1), 28–31. doi:10.1087/20130106
Kalwij, J. M.; Zobel, M.; Öpik, M.; Cantero, J. J.; Davison, J.; Facelli, J. M.; Hiiesalu, I.; Jairus, T.; Koorem, K.; Leal, M. E.; Liira, J.; Metsis, M.; Neshataeva, V.; Paal, J.; Phosri, C.; Põlme, S.; Reier, Ü.; Saks, Ü.; Schimann, H.; Thiéry, O.; Vasar, M.; Moora, M. (2013). Global sampling of plant roots expands the described molecular diversity of arbuscular mycorrhizal fungi. Mycorrhiza, 23, 411–430. doi:10.1007/s00572-013-0482-2
Kasari, L.; Gazol, A.; Kalwij, J. M.; Helm, A. (2013). Low shrub cover in alvar grasslands increases small-scale diversity by promoting the occurrence of generalist species. Tuexenia, 33 (1), 293–308.
Le Roux, P. C.; Ramaswiela, T.; Kalwij, J. M.; Shaw, J. D.; Ryan, P. G.; Treasure, A. M.; McClelland, G. T. W.; McGeoch, M. A.; Chown, S. L. (2013). Human activities, propagule pressure and the alien plants in the sub-Antarctic : evidence in support of management. Biological conservation, 161, 18–27. doi:10.1016/j.biocon.2013.02.005
Kalwij, J. M. (2012). Review of ’The Plant List, a working list of all plant species’. Journal of vegetation science, 23 (5), 998–1002. doi:10.1111/j.1654-1103.2012.01407.x
Metsoja, J.-A.; Neuenkamp, L.; Pihu, S.; Vellak, K.; Kalwij, J. M.; Zobel, M. (2012). Restoration of flooded meadows in Estonia - vegetation changes and management indicators. Applied vegetation science, 15 (2), 231–244. doi:10.1111/j.1654-109X.2011.01171.x
Kalwij, J. M.; Boer, W. F. de; Mucina, L.; Prins, H. H. T.; Skarpe, C.; Winterbach, C. (2010). Tree cover and biomass increase in a southern African savanna despite growing elephant population. Ecological applications, 20 (1), 222–233. doi:10.1890/09-0541.1
Öpik, M.; Vanatoa, A.; Vanatoa, E.; Moora, M.; Davison, J.; Kalwij, J. M.; Reier, Ü.; Zobel, M. (2010). The online database MaarjAM reveals global and ecosystemic distribution patterns in arbuscular mycorrhizal fungi (Glomeromycota). The new phytologist, 188 (1), 223–241. doi:10.1111/j.1469-8137.2010.03334.x
Bolli, J. C.; Wagner, H. H.; Kalwij, J. M.; Werth, S.; Cherubini, P.; Scheidegger, C.; Rigling, A. (2008). Growth dynamics after historic disturbance in a montane forest and its implications for an endangered epiphytic lichen. Botanica Helvetica, 118, 111–127. doi:10.1007/s00035-008-0834-2
Kalwij, J. M.; Milton, S. J.; McGeoch, M. A. (2008). Road verges as invasion corridors? A spatial hierarchical test in an arid ecosystem. Landscape ecology, 23, 439–451. doi:10.1007/s10980-008-9201-3
Kalwij, J. M.; Robertson, M. P.; Rensburg, B. J. van. (2008). Human activity facilitates altitudinal expansion of exotic plants along a road in montane grassland, South Africa. Applied vegetation science, 11 (4), 491–498. doi:10.3170/2008-7-18555
McGeoch, M. A.; Chown, S. L.; Kalwij, J. M. (2006). A global indicator for biological invasion. Conservation biology, 20 (6), 1635–1646. doi:10.1111/j.1523-1739.2006.00579.x
Wagner, H. H.; Werth, S.; Kalwij, J. M.; Bolli, J. C.; Scheidegger, C. (2006). Modelling forest recolonization by an epiphytic lichen using a landscape genetic approach. Landscape ecology, 21, 849–865. doi:10.1007/s10980-005-5567-7
Werth, S.; Wagner, H. H.; Gugerli, F.; Holderegger, R.; Csencsics, D.; Kalwij, J. M.; Scheidegger, C. (2006). Quantifying dispersal and establishment limitation in a population of an epiphytic lichen. Ecology, 87 (8), 2037–2046. doi:10.1890/0012-9658(2006)87[2037:QDAELI]2.0.CO;2
Werth, S.; Wagner, H. H.; Holderegger, R.; Kalwij, J. M.; Scheidegger, C. (2006). Effect of disturbances on the genetic diversity of an old-forest associated lichen. Molecular ecology, 15, 911–921. doi:10.1111/j.1365-294X.2006.02838.x
Kalwij, J. M.; Sykora, K. V.; Keizer, P.-J. (2004). Een botanische evaluatie van 15 jaar rijkswegbermbeheer. De Levende natuur, 105 (3), 104–108.
Sykora, K. V.; Kalwij, J. M.; Keizer, P.-J. (2004). Phytosociological and floristic evaluation of a 15-year ecological management of roadside verges in the Netherlands. Preslia, 74 (4), 421–436.