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Dr.  Jesse Machiel Kalwij

Dr. Jesse Machiel Kalwij

Research, teaching
Research, Teaching
Group: Vegetation
Room: 817 (Sprechstunde nach Vereinbarung)
CS 10.50

Phone: +49 721 608-44391
Fax: +49 721 608-43738
jesse kalwijZoh8∂kit edu

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

Jesse Kalwij

Biogeography, plant ecology, road verge ecology, spatial ecology


  • Spatial-temporal dynamics of exotic plant species
  • Island biogeography of the sub-Antarctic
  • Plant-animal interaction in savanna ecosystems
  • Application of unmanned aerial vehicles in vegetation ecology


Curriculum vitae

Since 2019 Research assistant (Postdoctoral fellow), Research Group Vegetation Science and Biogeography, Karlsruhe Institute of Technology (KIT)
Since 2018 Visiting research fellow, Kiel Pharmacognosy Group, Kiel University, Germany
Since 2013 Visiting research fellow, Centre for Ecological Genomics & Wildlife Conservation, University of Johannesburg, South Africa
2015-2018 Research assistant (Postdoctoral fellow), Institute of Ecosystem Research, Kiel University
2014-2015 Researcher, Institute of Botany, Brno, Czech Republic
2009-2013 Senior researcher, Institute of Ecology and Earth Sciences, University of Tartu, Estonia
2007-2009 Postdoctoral fellow, Department of Botany and Zoology, Stellenbosch University, South Africa
2005-2007 Postdoctoral fellow, Centre of Excellence for Invasion Biology, Stellenbosch University
2002-2005 PhD candidate, Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf ZH, Switzerland
2001 Vegetation ecologist, Wageningen University, The Netherlands
2000-2001 Botanist, Tau Consultants (Pty) Ltd., Okavango Delta, Botswana
1994-2000 BSc and MSc degree in Biology, Wageningen University, The Netherlands


Other activities

  • Editorial boards: BioInvasion Records (2015 - 2019), Koedoe (2019 - present), Plant Ecology (2015 - present)
  • Memberships: 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)


Contributions in peer-reviewed journals
2019Kalwij, 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, pp. 4653. Unter den Bedingungen von Open Access verfügbar 10.1038/s41598-019-41081-9 PDF

2018Tay, 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(10), pp. 1139–1150. 10.1007/s11258-018-0865-8 PDF

2017Steyn, C., Robertson, M. P., Kalwij, J. M., 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, pp. 337–346. 10.1111/jvs.12477 PDF

2016Haussmann, 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, pp. 234–239. 10.1016/j.sajb.2015.07.012 PDF

2015Kalwij, 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, pp. 3517–3529. 10.1007/s10530-015-0975-3 PDF

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), pp. 569–578. 10.1111/avsc.12180 PDF

2014Kalwij, J. M., Robertson, M. P., Ronk, A., Zobel, M., Pärtel, M. (2014): Spatially-explicit estimation of geographical representation in large-scale species distribution datasets. PLoS One 9(1), pp. 85306. Unter den Bedingungen von Open Access verfügbar 10.1371/journal.pone.0085306 PDF

Kalwij, J. M., Steyn, C., le Roux, P. C. (2014): Repeated monitoring as an effective early detection means: first records of naturalised Solidago gigantea Aiton (Asteraceae) in southern Africa. South African Journal of Botany, pp. 204–206. 10.1016/j.sajb.2014.04.013 PDF

2013Barnaud, A., Kalwij, J. M., Berthouly-Salazar, C., McGeoch, M. A., Jansen van Vuuren, B. (2013): Are road verges corridors for weed invasion? Insights from the fine-scale spatial genetic structure of Raphanus raphanistrum. Weed Research 53(5), pp. 362–369. 10.1111/wre.12033 PDF

Barnaud, A., Kalwij, J. M., McGeoch, M. A., Jansen van Vuuren, B. (2013): Patterns of weed invasion: evidence from the spatial genetic structure of Raphanus raphanistrum. Biological Invasions 15, pp. 2455–2465. 10.1007/s10530-013-0465-4 PDF

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, pp. 20120806. 10.1098/rsbl.2012.0806 PDF

Haussmann, N. S., Rudolph, E. M., Kalwij, J. M., McIntyre, T. (2013): Fur seal populations facilitate establishment of exotic vascular plants. Biological Conservation 162, pp. 33–40. 10.1016/j.biocon.2013.03.024 PDF

Kalwij, J. M., Smit, C. (2013): How authors can maximise the chance of manuscript acceptance and article visibility. Learned Publishing 26, pp. 28–31. 10.1087/20130106 PDF

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, pp. 293–308. PDF

le Roux, P. C., Ramaswiela, T., Kalwij, J. M., Shaw, J. D., Ryan, P. G., Treasure, A. M., McClelland, G. T., 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, pp. 18–27. 10.1016/j.biocon.2013.02.005 PDF

Öpik, M., Zobel, M., Cantero, J. J., Davison, J., Facelli, J. M., Hiiesalu, I., Jairus, T., Kalwij, J. M., Koorem, K., Leal, M. E., Liira, J., Metsis, M., Neshataeva, V., Paal, J., Phosri, C., Põlme, S., , , 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, pp. 411–430. 10.1007/s00572-013-0482-2 PDF

2012Kalwij, J. M. (2012): Review of 'The Plant List, a working list of all plant species'. Journal of Vegetation Science 23(5), pp. 998–1002. 10.1111/j.1654-1103.2012.01407.x PDF

Metsoja, J., 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), pp. 231–244. 10.1111/j.1654-109X.2011.01171.x PDF

2010Kalwij, J. M., de Boer, W. F., Mucina, L., Prins, H. H., Skarpe, C., Winterbach, C. (2010): Tree cover and biomass increase in a southern African savanna despite growing elephant population. Ecological Applications 20(1), pp. 222–233. 10.1890/09-0541.1 PDF

Öpik, M., Vanatoa, A., Vanatoa, E., Moora, M., Davison, J., Kalwij, J. M., , Zobel, M. (2010): The online database MaarjAM reveals global and ecosystemic distribution patterns in arbuscular mycorrhizal fungi (Glomeromycota). New Phytologist 188(1), pp. 223–241. 10.1111/j.1469-8137.2010.03334.x PDF

2009McGeoch, M. A., Kalwij, J. M., Rhodes, J. I. (2009): A spatial assessment of Brassica napus gene flow potential to wild and weedy relatives in the Fynbos Biome. South African Journal of Science 105(3-4), pp. 109–115. PDF

2008Bolli, 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(2), pp. 111–127. 10.1007/s00035-008-0834-2 PDF

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(4), pp. 439–451. 10.1007/s10980-008-9201-3 PDF

Kalwij, J. M., Robertson, M. P., van Rensburg, B. J. (2008): Human activity facilitates altitudinal expansion of exotic plants along a road in montane grassland, South Africa. Applied Vegetation Science 11(4), pp. 491–498. 10.3170/2008-7-18555 PDF

2006McGeoch, M. A., Chown, S. L., Kalwij, J. M. (2006): A global indicator for biological invasion. Conservation Biology 20(6), pp. 1635–1646. 10.1111/j.1523-1739.2006.00579.x PDF

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(6), pp. 849–865. 10.1007/s10980-005-5567-7 PDF

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), pp. 2037–2046. 10.1890/0012-9658(2006)87[2037:QDAELI]2.0.CO;2 PDF

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(4), pp. 911–921. 10.1111/j.1365-294X.2006.02838.x PDF

2005Kalwij, J. M., Wagner, H. H., Scheidegger, C. (2005): Effects of stand-level disturbance events on the spatial distribution of a lichen indicator of forest conservation value. Ecological Applications 15(6), pp. 2015–2024. 10.1890/04-1912 PDF

Proches, S., Wilson, J. R., Veldtman, R., Kalwij, J. M., Richardson, D. M., Chown, S. L. (2005): Landscape corridors: Possible dangers? Science 310(5749), pp. 779–783. 10.1126/science.310.5749.779 PDF

2004Kalwij, J. M., Sýkora, K. V., Keizer, P. (2004): Een botanische evaluatie van 15 jaar rijkswegbermbeheer. De Levende Natuur 105, pp. 104–108. PDF

Sýkora, K. V., Kalwij, J. M., Keizer, P. (2004): Phytosociological and floristic evaluation of a 15-year ecological management of roadside verges in the Netherlands. Preslia 74, pp. 421–436. PDF

2014Mucina, L., Price, J. N., Kalwij, J. M. (2014): Biodiversity & vegetation: patterns, processes, conservation. 277 pp., Kwongan Foundation (Perth, Australia) PDF

2008Mucina, L., Kalwij, J. M., Smith, V. R., Chytrý, M., White, P. S., Cilliers, S. S., Pillar, V. D., Zobel, M., Sun, I. (2008): Frontiers of vegetation science — an evolutionary angle. 230 pp., Keith Philip Images (Somerset West, South Africa) PDF