DR. JAN HENNING SOMMER - PUBLICATIONS
Callo-Concha, D., Sommer, J.H., Kleemann, J., Gatzweiler, F. & M. Denich (2014) Marginality from a
socioecological perspective. In: von Braun, J., Gatzweiler, F.: Marginality: Addressing the Nexus of
Poverty, Exclusion and Ecology, 57-65. DOI: 10.1007/978-94-007-7061-4_4
Freudenberger, F., Sommer, J.H. (2014). Biodiversity: Climate Change. In Encyclopedia of Natural
Resources: Land. Taylor and Francis: New York, Published online: 21 Oct 2014; 51-58.
http://dx.doi.org/10.1081/E-ENRL-120047624
Freudenberger L., Hobson P.R., Schluck M., Kreft S., Vohland K. Sommer J.H., Reichle S., Nowicki C.,
Barthlott W. & P. L. Ibisch (2013) Nature conservation: priority-setting needs a global change.
Biodiversity and Conservation, 22: 1255-1281. (online: link.springer.com/article/10.1007/s10531-0120428-6)
Márquez J. R., Dormann C. F., Sommer J. H., Schmidt M., Thiombiano A., Sié S. D, Chatelain C., Dressler
S. & W. Barthlott (2012) A methodological framework to quantify the spatial quality of biological
databases. In: Dengler, J., Oldeland, J., Jansen, F., Chytrý, M., Ewald, J., Finckh, M., Glöckler, F., LopezGonzalez, G., Peet, R. K., Schaminée, J. H. J. (Eds.) (2012): Vegetation databases for the 21st century. –
Biodiversity & Ecology 4: 25-39, doi 10.7809/b-e.00057
Mutke, J., Sommer, J.H., Kreft, H., Kier, G. & W. Barthlott (2011) Vascular plant diversity in a changing
world: global centres and biome-specific patterns. In: Habel, J. C. & F. Zachos (eds.): Biodiversity
Hotspots – Evolution and Conservation. Springer: 83-96.
Freudenberger L., Schluck, M., Hobson, P., Sommer, J.H., Cramer, W., Barthlott W. & Ibisch, P.I. (2010) A
view on global patterns and interlinkages of biodiversity and human development. In: Ibisch, P.L., Vega
E., A. & Herrmann, T.M. (eds.): Interdependence of biodiversity and development under global change.
Technical Series No. 54. Secretariat of the Convention on Biological Diversity, Montreal, 224 pp. 37-56,
197-215. (ISBN 92-9225-279-8) (online http://www.cbd.int/doc/publications/cbd-ts-54-en.pdf)
Mutke, J., Sommer, J.H., Da, S.S., Küper, W., Thiombiano, A. & Barthlott, W. (2010) Tracking plant
diversity in a changing world. UNESCO - A World of SCIENCE 8 (3) July–September 2010: 17-20.
http://unesdoc.unesco.org/images/0018/001884/188440E.pdf
Sommer, J. H., Kreft, H., Kier, G, Jetz, W., Mutke, J. & Barthlott, W. (2010) Projected impacts of climate
change on regional capacities for global plant species richness. Proceedings of the Royal Society B. 277
(1692), 2271-2280. doi: 10.1098/rspb.2010.0120
http://rspb.royalsocietypublishing.org/content/277/1692/2271.full.pdf+html
Sommer, J. H., (2008) Plant Diversity and Future Climate Change – Macroecological analyses of African
and global species distributions. Doctoral Thesis, Mathematisch-Naturwissenschaftliche Fakultät,
Rheinische Friedrich-Wilhelms-Universität Bonn
Burgess, N. D., Balmford, A., Cordeiro, N.J., Fjeldså, J., Küper, W., Rahbek, C., Sanderson, E.,
Scharlemann, J.P.W., Sommer, J. H. & Williams, P. H. (2007) Relationships between biodiversity value,
human density and human infrastructure across the high biodiversity tropical mountains of Africa.
Biological Conservation 134, 164-177
Barthlott, W., Hostert, A., Kier, G., Küper, W., Kreft, H., Mutke, J., Rafiqpoor, M.D. & Sommer, J. H.
(2007) Geographic patterns of vascular plant diversity at continental to global scales. Erdkunde 61: 305315
Küper, W., Sommer, J. H., Lovett, J.C. & Barthlott, W. (2006) Deficiency in African plant distribution data
- missing pieces of the puzzle. Botanical Journal of the Linnean Society 150 (3), 355-368
Kreft, H., Sommer, J. H. & Barthlott, W. (2006) The significance of geographic range size for the
explanation of spatial diversity patterns. Ecography 29, 21–30
McClean, C. J., Doswald, N., Küper, W., Sommer, J. H., Barnard, P. & Lovett, J.C. (2006) Potential impacts
of climate change on Sub-Saharan African plant priority area selection. Diversity and Distributions 12,
645-655
McClean, C., Lovett, J. C., Küper, W., Hannah, L., Sommer, J. H., Barthlott, W., Termansen, M., Smith, G.
F., Tokumine, S. & Taplin, J. (2005) African Plant Diversity and Climate Change. Annals of the Missouri
Botanical Garden 92, 139-152
Küper, W., Sommer, J. H., Lovett, J. C., Mutke, J., Linder, H. P., Beentje, H. J., van Rompaey, R. A. S. R.,
Chatelain, C., Sosef, M. & Barthlott, W. (2004) Africa's hotspots of biodiversity redefined. Annals of the
Missouri Botanical Garden 91, 525 – 536
Nowicki, C., Ley, A., Caballero, R., Sommer, J. H., Barthlott, W. & Ibisch, P. L. (2004) Extrapolando rangos
de distribución. BIOM 1.1 - un modelo bioclimático computerizado para la extrapolación de rangos de
especies y patrones de diversidad. / Extrapolating distribution ranges - BIOM 1.1., a computerized bioclimatic model for the extrapolation of species ranges and diversity patterns. - In: Vásquez, R. and Ibisch,
P. L. (eds.), Orquídeas de Bolivia / Orchids of Bolivia. Diversidad y estado de conservación / Diversity and
conservation status. Editorial F.A.N., 39-68
Rafiqpoor, D., Nowicki, C., Villarpando, R., Jarvis, A., Sommer, J.H., Jones, P. & Ibisch, P.L. (2004) The
factor that most influences the distribution of biodiversity: the climate. In: Ibisch, P.L. & Mérida, G.
(Eds.): Biodiversity: the richness of Bolivia. State of knowledge and conservation. Ministerio de
Desarrollo Sostenible y Planificacion / Editorial FAN, Santa Cruz
Sommer, J. H., Nowicki, C., Rios, L., Barthlott, W. & Ibisch, P. L. (2003) Extrapolating species ranges and
biodiversity in data-poor countries: The computerized model BIOM. Revista de la Sociedad Boliviana de
Botánica 4, 171-190.
Rafiqpoor, D., Nowicki, C., Villarpando, R., Jarvis, A., Sommer, J.H., Jones, P. & Ibisch, P.L. (2003) El factor
abiótico que más influye en la distribución de la biodiversidad: el clima. In: Ibisch, P.L. & Mérida, G.
(Eds.): Biodiversidad: la riqueza de Bolivia. Estado de conocimiento y conservación. Ministerio de
Desarrollo Sostenible y Planificacion / Editorial FAN, Santa Cruz
Barthlott, W., Mutke, J., Sommer, J. H., & Küper, W. (2003) Biodiversity of Africa in the global context:
Spatial patterns of vascular plant diversity in a changing environment. In: BMBF (Ed.): Sustainable use
and conservation of biological diversity – A challenge for society. Proceedings of the International
Symposium Berlin, December 1 – 4, 2003, Bundesministerium für Bildung und Forschung (German
Federal Ministry for Education and Research)
PRESENTATIONS ON SCIENTIFIC CONFERENCES
Sommer, J.H., Biber-Freudenberger, L., Da, S.S., Moret, N., Sabellek, K., Barthlott, W. (2015) Biodiversity,
global change, and sustainable land management: Examples from Western and Continental Africa.
Presented at 27th International Congress for Conservation Biology (ICCB), 4th European Congress for
Conservation Biology (ECCB), August 2-6 2015, Montpellier – France
Sommer, J.H., Freudenberger, L. (2014) Biodiversity and human development: Interplay or
Contradiction? Presented at 1st International Conference organized by BION – Biodiversity Network
Bonn, “Biodiversity - Today for Tomorrow”. Bonn, September 17 – 19, 2014
Sommer J. H., Kreft H., Denich M., Barthlott W. (2011): May Tropical Regions Suffer from a Climatechange Induced Decline of Plant Species Richness? Presented at Tropentag 2011 “Development on the
margin”, Bonn, October 5-7, 2011
Sommer. J. H. (2010) Modeling present and future plant diversity patterns for the continental Africa
based on species distribution data. Presentation at the MARUM-Seminary, Center for Marine
Environmental Sciences MARUM, February 9th, 2010, Bremen, Germany
Barthlott, W., Kier, G., Kreft, H., Küper, W., Mutke, J. & Sommer, J. H. (2010) Global assessments of plant
species richness and endemism: implications for conservation in a changing world. UNESCO IYB
Biodiversity Science Policy Conference. January 25–29 ,2010, UNESCO Headquarters, Paris, France
Sommer, J. H. (2010) Biodiversity and Climate Change – a challenge for science, policy and sustainable
development. BIOTA West Atelier final. Capitalisation des acquis et stratégies de conservation de la
biodiversité en Afrique de L’ouest. January 25th 2010 in Ouagadougou, Burkina Faso
Sommer, J. H. (2009) Wo geh‘n all‘ die Blumen hin? Auswirkungen des Klimawandels auf die globale
Vielfalt der Pflanzen als Lebensgrundlage für den Menschen. Wettbewerbsbeitrag zum Deutschen
Studienpreis 2009, Ausschlusstag Natur- und Technikwissenschaften, June 29th 2009 BerlinBrandenburgische Akademie der Wissenschaften, Berlin, Germany
Sommer, J.H., Barthlott, W., Böhning-Gaese, K., Field, R., Finckh, M., Heyder, U., Kissling, W.D.,
Korntheuer, H., Oldeland, J., Rahbek, C. & Sabellek, K. (2008) Impact of climate change on plant and bird
diversity in Africa. "Biodiversity of Africa - Observation and Sustainable Management for our Future!"
International Congress, 29 September - 3 October 2008, at Spier, Republic of South Africa
Sommer, J.H., Kreft, H., Kier, G., Jetz, W., Mutke, J. & Barthlott, W. (2008) Global Plant Diversity and
Climate Change. Talk presented at the EURECO-GFOE 2008, September 15-19, 2008 Leipzig, Germany
Sommer, J.H., Kreft, H., Kier, G., Jetz, W., Mutke, J. & Barthlott, W. (2008) Where will all the flowers go?
Climate change and the global distribution of plant diversity. 93rd Ecological Society of America (ESA)
Annual Meeting, August 3-8, 2008 Milwaukee, Wisconsin, USA
Sommer, J. H. Küper, W. & Barthlott, W. (2008) Climate Change and Protected Areas in Africa 2nd
Annual Meeting of the Specialist Group on Macroecology of the Ecological Society of Germany (GfÖ)
March 10-11, 2008 Bonn, Germany
Sommer, J. H. (2008) Climate Change and the distribution of Plant Diversity. 9th Conference of the
Parties of the Convention on Biological Diversity (CBD), COP 9, Side Event 12, Plants and Climate Change
– a call for action by Botanic Gardens Conservation International (BGCI), May 19, 2008, Bonn, Germany
Sommer, J.H., Küper, W. & Barthlott, W. (2007) Global Change: The future of Africa`s Plant Diversity. 20.
Annual Meeting of the Society for Tropical Ecology: Tropical Diversity in the Anthropocene. February 2125, 2007, Bonn, Germany
Sommer, J.H., Küper, W. & Barthlott, W. (2007) Climate Change – the Fate of Africa`s Plant Diversity.
37th Annual Conference of the Ecological Society of Germany, Switzerland and Austria (GfÖ). September
10-14, 2007, Marburg, Germany
Sommer, J.H., Küper, W., Da, S.S. & Barthlott, W. (2007) Patterns of African Plant diversity under Global
Change. 18th AETFAT Congress, Session II – 11. BIOTA. 26 February to 2 March 2007 Yaoundé,
Cameroon
Sommer, J.H., Küper, W. & Barthlott, W. (2006) Africa´s plant diversity and global change.17th
International Symposium Biodiversity and Evolutionary Biology. September 24-28, 2006 in Bonn,
Germany
Sommer, J.H., Küper, W. & Barthlott, W. (2006) Implications of climate change on Africa’s plant
diversity. ESSP Open Science Conference: Global Environmental Change - Regional Challenges,
November 9-12 , 2006 in Beijing, China
Sommer, J.H., Küper, W., Schnitzler, J., Lovett, J. C. & Barthlott, W. (2005) Patterns of African plant
diversity and the impact of future climate change - problems and perspectives. XVII International
Botanical Congress. July 17 – 23, 2005 Vienna, Austria