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Geography, Earth Science and Environment


Professor Hans Juergen Boehmer

Contact Information

Email:   juergen.boehmer(at)
Phone: +679 323 2845
Office: Room 11, SGESE Building, Lower Campus

Research interests

Hans Juergen Boehmer is a biogeographer and vegetation ecologist with a research focus on long-term vegetation dynamics, particularly on the complex interactions of natural and human-induced vegetation dynamics, disturbance regimes, biological invasions, and climate change. He has published over 40 peer-reviewed articles and is also first author of Germany’s national report on invasive alien species to the SCBD (2001). His recent publications include works on plant diversity and dynamics of tropical montane rain forests in Hawaii and East Africa, the functional connectivity of calcareous grasslands in Central Europe (process-based evaluation of ecological networks), and the consequences of biological invasions.

Selected publications (since 2010)

MERTLMEYER, L., JACOBI, J.D., BOEHMER, H.J. & MUELLER-DOMBOIS, D. (in press): Using very high-resolution aerial imagery to assess changes in canopy status of ‘Ohi‘a (Metrosideros polymorpha) forests on the Island of Hawai‘i. – In: Fujiwara, K., Greller, A., Pedrotti, F. (eds.) Geographical Changes in Vegetation and Plant Functional Types. Berlin – Heidelberg – New York: Springer.

KEPPEL, G., MORRISON, C., MEYER J.-Y. & H. J. BOEHMER (2014): Isolated and vulnerable: the history and future of Pacific Island terrestrial biodiversity (invited paper). – Pacific Conservation Biology 20(2):136-145.

RICO, Y., BOEHMER, H. J. & H. H. WAGNER (2014): Effect of Rotational Shepherding on Demographic and Genetic Connectivity of Calcareous Grassland Plants. – Conservation Biology 28 (2): 467-477. DOI: 10.1111/cobi.12186.

RICO, Y., HOLDEREGGER, R. BOEHMER, H.J. & H. H. WAGNER (2014): Directed dispersal by rotational shepherding supports landscape genetic connectivity in a calcareous grassland plant. – Molecular Ecology 23 (4): 832-842. DOI: 10.1111/mec.12639

MUELLER-DOMBOIS,  D. & H. J. BOEHMER (2013): Origin of the Hawaiian rainforest ecosystem and its transition states in long-term primary succession (invited paper). – Biogeosciences 10: 5171–5182. DOI 10.5194/bg-10-5171-2013.

BOEHMER, H. J., WAGNER, H. H., GERRISH, G.C., JACOBI, J.D.  & D. MUELLER-DOMBOIS (2013): Rebuilding after Collapse: Evidence for long-term cohort dynamics in a monodominant tropical rainforest. – Journal of Vegetation Science 24: 639-650. DOI 10.1111/jvs.12000.

MUELLER-DOMBOIS, D., JACOBI, J. D., BOEHMER, H. J. & J. P. PRICE (2013): Ohia Lehua Rainforest. The story of a dynamic ecosystem with relevance to forests worldwide. – 278 p., Amazon Press.

WAGNER, H. H., RICO, Y., LEHNERT, H. & H. J. BOEHMER (2013): Process-based long-term evaluation of an ecological network of calcareous grasslands. – Ecography 36 (3): 374-382. DOI 10.1111/j.1600-0587.2012.07463.x

AYNEKULU, E., AERTS, R., MOONEN, P., DENICH, M., GEBREHIWOT, K. & H. J. BOEHMER (2012): Altitudinal variation and conservation priorities of vegetation along the Great Rift escarpment, northern Ethiopia. – Biodiversity and Conservation 21: 2691–2707. DOI 10.1007/s10531-012-0328-9

RICO, Y., BOEHMER, H. J. & H. H. WAGNER (2012): Determinants of actual functional connectivity for calcareous grassland communities linked by rotational sheep grazing. – Landscape Ecology 27: 199-209. DOI 10.1007/s10980-011-9648-5

BOEHMER, H. J. (2011): Vulnerability of tropical montane rain forest ecosystems due to climate change. – In: Brauch, H. G.; Oswald Spring, Ϊ.; C. Mesjasz, J. Grin, P. Kameri-Mbote, B. Chourou, P. Dunay, J. Birkmann (eds.): Coping with Global Environmental Change, Disasters and Security – Threats, Challenges, Vulnerabilities and Risks. Hexagon Series on Human and Environmental Security and Peace, vol. 5., 789-802. Berlin – Heidelberg – New York: Springer-Verlag.

BOEHMER, H. J. (ed., 2011): Biologische Invasionen (Special Volume on Biological Invasions). – Geographische Rundschau 63 (3). 66 pp, Westermann, Braunschweig.

AYNEKULU, E., DENICH, M., TSEGAYE, D., AERTS, R., NEUWIRTH, B. & H. J. BOEHMER (2011): Dieback affects forest structure in a dry Afromontane forest in northern Ethiopia. – Journal of Arid Environments. DOI 10.1016/j.jaridenv.2010.12.013

SCHMITT, C. B., DENICH, M., DEMISSEW, S., FRIJS, I. & H. J. BOEHMER (2010): Floristic diversity in fragmented Afromontane rainforests: Altitudinal variation and conservation importance. – Applied Vegetation Science 13: 291-304. DOI 10.1111/j1654-109X.01067

MINDEN, V., JACOBI, J. D., POREMBSKI, S. & H. J. BOEHMER (2010): Effects of invasive alien kahili ginger (Hedychium gardnerianum) on native plant species regeneration in a Hawaiian rainforest. – Applied Vegetation Science 13 (1): 5-14. DOI: 10.1111/j.1654-109X.2009.01056.x

MINDEN, V., HENNEBERG, K. J., POREMBSKI, S. & H. J. BOEHMER (2010): Invasion and management of alien Hedychium gardnerianum (kahili ginger, Zingiberaceae) alter plant species composition of a montane rainforest on the island of Hawai'i. – Plant Ecology 206: 321-333. DOI 10.1007/s11258-009-9645-9

SCHMITT, C., DENICH, M. & BOEHMER, H. J. (2010): Plant diversity and conservation of Afromontane rainforest with Coffea arabica in the Bonga region (SW Ethiopia). – In: X. van der Burgt, J. van der Maesen & J.-M. Onana (eds.), Systematics and Conservation of African Plants, pp. 679-690, Royal Botanic Gardens, Kew (Great Britain).

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Geography, Earth Science and Environment
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