Botanischer Garten und Botanisches Museum, Berlin-Dahlem Botanischer Garten und Botanisches Museum, Berlin-Dahlem

Veröffentlichungen / Publications - R. Jahn

Dr. Regine Jahn, Botanischer Garten und Botanisches Museum Berlin-Dahlem, Freie Universität Berlin, Königin-Luise-Straße 6-8, D-14195 Berlin, Germany.
Phone: (+4930) 838-50142, Fax: (+4930) 841729-42, E-mail: r.jahn [at] bgbm.org.

Scientific publications (peer reviewed):  

  • Cocquyt, C., de Haan, M., Jahn, R. & Hinz, F. 2011: Nitzschia epiphytica, Nitzschia epiphyticoides and Nitzschia pseudepiphytica (Bacillariophyta), three small diatoms from East and Central Africa. – Phycologia 50(5): in press.
  • Mayama, S., Katoh, K, Ohmori, H, Seino, S, Osaki, H, Julius, M, Lee, J.H., Cheong, Ch., Lobo, E.A, Witkowski, A., Srivibool, R., Muangphra, P., Jahn, R. and Kulikovskiy, M., Hamilton, P.B., Gao, Y.-H., Ector, L. 2011: Progress toward the Construction of an International Web-based Educational System Featuring Improved SimRiver for Understanding of River Environments. – Asian Journal of Biology Education 5: 2-14.
  • Kapetanović, T., Jahn, R., Redžić, S. & Carić, M. 2011: Diatoms in a poor fen of Bijambare protected landscape, Bosnia & Herzogovina. – Nova Hedwigia 93: 125-151.
  • Zimmermann, J., Jahn, R., Gemeinholzer, B. 2011: Barcoding diatoms: evaluation of the V4 subregion on the 18S rRNA gene, including new primers and protocols. – Organisms Diversity & Evolution 11: 173-192.
  • Sar, E.A., Sunesen, I., Jahn, R. 2010: Coscinodiscus perforatus revisited and compared to Coscinodiscus radiatus (Bacillariophyta). – Phycologia 49:514-524. Full text PDF
  • Stachura-Suchoples, K., Jahn, R. 2009: Middle Miocene record of Pliocaenicus changbaiense from Chanbai County (Jilin Province, China). – Acta Botanica Croatica 68 (2): 33-42.
  • Jahn, R., Kusber, W.-H. & Romero, O.E. 2009: Cocconeis pediculus Ehrenberg and C. placentula Ehrenberg: Typification and taxonomy. – Fottea 9: 275-288. Full text PDF
  • Jahn, R. & Kusber, W.-H. 2009: A Key to Diatom Nomenclature. – Diatom Research 24: 101-111. Full text PDF
  • Buczko, K., Wojtal, A.Z. & Jahn, R. 2009: Kobayasiella species of the Carpathian basin: morphology, taxonomy and description of K. tintinnus spec. nov. – Diatom Research 24: 1-21. Full text PDF
  • Kusber, W.-H. & Jahn, R. 2009: The last chapter of the Discoplea story. – Studi Trent. Sci. Nat. 84: 105-110. Full text PDF
  • Jahn, R., Mann, D.G., Evans, K. & Poulíčková, A. 2008: The identity of Sellaphora bacillum (Ehrenberg) D.G.Mann. – Fottea, Olomouc 8 (2): 121-124. Full text PDF
  • Cocquyt C., Kusber W.-H. & Jahn R. 2008: Otto Müller’s Surirella taxa (Bacillariophyta) from East Africa, based on a historical collection kept at the Botanic Garden and Botanical Museum Berlin-Dahlem (B). – Afrika Focus 21 (1): 65-75.
  • Cocquyt, C. & Jahn, R. 2007: Surirella fuellebornii (Bacillariophyta) and related taxa: lectotypification and distribution. – Syst. Geogr. Pl. 77: 213-228. Full text PDF
  • Cocquyt, C. & Jahn, R. 2007: Surirella engleri O. Müller: a study of ist original infraspecific types, variability and distribution. – Diatom Research 22(1): 1-16. Full text PDF
  • Sar, E.A., Sunesen, I., Jahn, R., Kusber, W.-H. and Lavigne, A.S. 2007: Revision of Odontella atlantica (Frenguelli) Sar comb. et stat. nov. with comparison to two related species, O. rhombus (Ehrenb.) Kütz. and O. rhomboides R. Jahn et Kusber. – Diatom Research 22: 341-353. Full text PDF
  • Jahn, R. & Schmid, A. M. 2007: Revision of the brackish-freshwater genus Bacillaria Gmelin (Bacillariophyta) with description of a new variety and two new species. – European Journal of Phycology 42: 295-312. Full text PDF
  • Cocquyt, C. &  Jahn, R. 2007: Endemic taxa related to Surirella ovalis from Tanzania, East Africa: Typification of O. Müller's taxa and description of a new species. – Cryptogamie Algologie 28: 107-116.
  • Poulíčková, A. & Jahn, R. 2007: Campylodiscus clypeus (Ehrenberg) Ehrenberg ex Kützing: Typification, morphology and distribution. – Diatom Research 22: 135-146. Full text PDF
  • Cocquyt, C. &  Jahn, R. 2007: Surirella nyassae O. Müller, S. malombae O.Müller, S. chepurnovii Cocquyt & R.Jahn sp. nov. (Bacillariophyta) - Typification and variability of three closely related East African diatoms. – Nova Hedwigia 84: 529-548.
  • Jahn, R. & Kusber, W.-H. 2006: Ceratoneis reimannii nom. nov., a new name for the marine species: C. fusiformis R. Jahn et Kusber. – Diatom Research 21 (1): 225-226. Full text PDF
  • Geissler, U., Kusber, W.-H. & Jahn, R. 2006: The diatom flora of Berlin (Germany): A spotlight on some documented taxa as a case study on historical biodiversity. Proceedings 18th International Diatom Symposium, 2-7 September 2004 Międzyzdroje, Poland, pp. 91-105. Full text PDF
  • Kaczmarska, I. & Jahn, R. 2006: Taxonomic appraisal of Melosira arctica Dickie and description of a new variety (Bacillariophyta). – Botanica Marina 49 (2): 151-164. Full text PDF
  • Jahn, R. & W.-H. Kusber 2006: Algae of the Ehrenberg Collection - 3. Typification of  seven diatom taxa described by C.G. Ehrenberg predominantly from Greece. – Willdenowia 36 (1 - special issue): 527-535. Full text PDF
  • Cocquyt, C. &  Jahn, R. 2005: Rare Surirella taxa (Bacillariophyta) from East Africa described by Otto Müller: typifications, recombinations, new names, annotations and distributions. – Willdenowia 35: 359-371.
  • Jahn, R. & Kusber, W.-H. 2005: Reinstatement of the genus Ceratoneis Ehrenberg and lectotypification of its type specimen: C. closterium Ehrenberg. – Diatom Research 20: 295-304. Full text PDF
  • Jahn, R., Sterrenburg, F.A.S. & Kusber, W.-H. 2005: Typification and taxonomy of Gyrosigma fasciola (Ehrenb.) J.W. Griffith et Henfrey. – Diatom Research 20: 305-311. Full text PDF
  • Bixby, R.J. & Jahn, R. 2005: Hannaea arcus (Ehrenb.) R.M. Patrick: Lectotypification and nomenclatural history. – Diatom Research 20: 219-226. Full text PDF
  • Hamilton, P.B. & Jahn, R. 2005: Typification of Navicula affine Ehrenberg: Type for the name of the genus Neidium Pfitzer. – Diatom Research 20: 281-294. Full text PDF
  • Kusber, W.-H., Elbrächter, M. & Jahn, R. 2005: Algae of the Ehrenberg Collection 2. The type specimens of two dinoflagellate names described by C.G. Ehrenberg. – Willdenowia 35: 205-210. Full text PDF
  • Cocquyt, C. & Jahn, R. 2005: Surirella capensis Ehrenberg ex Cocquyt et R. Jahn sp. nov., a rare and historical diatom species from South Africa. – Cryptogamie Algologie 26 (2): 149-153.
  • Jahn, R. & Kusber, W.-H. 2004: Algae of the Ehrenberg Collection - 1. Typification of 32 names of diatom taxa described by C.G. Ehrenberg. – Willdenowia 34: 577-595. Full text PDF
  • Kusber, W.-H., Raabe, U., Blümel, C., Geissler, U. & Jahn, R. 2004: Mittel- und langfristige Trends der Characeen-Vorkommen in Berlin. – Rostocker Meereskundliche Beiträge 13: 127-138. Full text PDF
  • Jahn, R. 2004: Discovery of the type specimen of Pinnularia gastrum Ehrenberg, the type species of the genus Placoneis Mereschkowsky. – Diatom Research 19 (2): 229-234. Full text PDF
  • Jahn, R., Kusber, W.-H., Medlin, L.K., Crawford, R.M., Lazarus, D., Friedl, T., Hepperle, D., Beszteri, B., Hamann, K., Hinz, F., Strieben, S., Huck, V., Kasten, J., Jobst, A., Glück, K. 2004: Taxonomic, molecular and ecological information on diatoms: The information system AlgaTerra. – Pp. 121-128 in: Poulin, M. (ed.): Seventeenth International Diatom Symposium 2002. Biopress, Bristol.
  • Jahn, R. & Sterrenburg, F.A.S. 2003: Gyrosigma sinense (Ehrenberg) Desikachary: Typification and emended species description. - Diatom Research 18 (1): 61-67. Full text PDF
  • Crawford, R. M., Likoshway, Y. V., Jahn, R. 2003: Morphology and Identity of Aulacoseira italica and typification of Aulacoseira (Bacillariophyta). – Diatom Research 18 (1): 1-19.Full text PDF
  • Jahn, R. 2002: Otto Müller's names of diatoms (Bacillariophyceae) and extant original material at the Botanical Museum Berlin-Dahlem (B). – Willdenowia 32: 155-173. Full text PDF
  • Lange-Bertalot, H. & Jahn, R. 2000: On the identity of Navicula (Frustulia) rhomboides and Frustulia saxonica. – Syst. Geogr. Pl. 70: 255-261.
  • Busse, S., Jahn, R. & Schulz, C.-J. 1999: Desalinization of running waters. II. Benthic diatom communities: A comparative field study on responses to decreasing salinity. –  Limnologica 29: 465-474.
  • Lazarus, D. & Jahn, R. 1998: Using the Ehrenberg Collection. – Diatom Research 13: 273-291. Full text PDF
  • Jahn, R. 1998: C.G. Ehrenberg: The man and his botanical science. – In: Williams, D.M. & Huxley, R. (ed.). Christian Gottfried Ehrenberg (1795-1876): The man and his legacy. - Special Publication of the Linnean Society, Academic Press, pp. 14-29.
  • McLachlan, J.L., Boalch, G.T. & Jahn, R. 1997: Reinstatement of the genus Exuviaella (Dinophyceae, Prorocentrophycidae) and an assessment of Prorocentrum lima. –  Phycologia 36: 38-46.
  • Jahn, R. 1996: The historical East African freshwater algae collection at the Botanical Museum Berlin-Dahlem (B). – Willdenowia 26: 333-340. Full text PDF
  • Jahn, R. 1995: C.G. Ehrenberg´s concept of the diatoms. – Arch. Protistenk. 146: 109-116.
  • Jahn, R. & Lange-Bertalot, H. 1995: Proposal to conserve the name Gomphonema vibrio Ehrenb. (Bacillariophyceae) with a conserved type. – Taxon 44: 221-222.
  • Mshigeni, K.E. & Jahn, R. 1995: Eucheuma (Rhodophyta, Gigartinales) in the W Indian Ocean region - notes on collections kept in Berlin-Dahlem and Hamburg. – Willdenowia 25: 399-407.
  • Jahn, R. 1992: Navicula geisslerae sp. nov. - a small species from the river Spree (Berlin, Germany). – Diatom Research 7: 69-75.
  • Jahn, R. & Wendker, S. 1987: Untersuchungen zur Diatomeenflora der Werra - einem extrem salzbelasteten Biotop. – Nova Hedwigia 44: 163-173.
  • Geißler, U. & Jahn, R. 1986: Infraspecific taxa of diatoms as indicators of water quality? –  In M. Ricard (ed.): Proceedings 8th International Diatom Symposium, Paris 1984: 766-772.
  • Jahn, R. 1986: A study of Gomphonema augur Ehrenberg: the structure of the frustule and its variability in clones and populations. – In M. Ricard (ed.): Proceedings 8th International Diatom Symposium, Paris 1984: 191-204.

Other scientific publications:

  • Burba, M., Kusber, W.-H. & Jahn, R. 2009: Das Universum im Mikroskop - Biodiversität und Ästhetik der Diatomeen - MuseumsJournal 23(2): 82-83.
  • Jahn, R. & Kusber, W.-H. 2009: Imaging diatoms – why, when, and how. - Diatomededelingen - 33 (2009) - S. 62-65.
  • Stachura-Suchoples, K., Williams, D. & Jahn, R. 2009: On extinct, freshwater taxa in Thalassiosira with observations on a species of Thalassiosira from Pliocene deposit in Oregon, U.S.A. - Diatomededelingen - 33 (2009) - S. 111-113.
  • Ognjanova-Rumenova, N. & Jahn, R. 2009: Reinvestigation of the fossil diatom flora from Jastrabá depostits, Ehrenberg Collection - preliminary results. – Diatomededelingen 33 (2009): 99.
  • Jahn, R., Zetzsche, H., Reinhardt, R. & Gemeinholzer, B. 2007: Diatoms and DNA barcoding: a pilot study on an environmental sample. – Pp. 63-68 in: Kusber, W.-H. & Jahn, R. (ed.): Proceedings of the 1st Central European Diatom Meeting 2007. – Berlin. Full text PDF (124 KB)
  • Brinkmann, N., Behnke, A., Bruns, S., Mohr., K, Jahn, R. & Friedl, T. 2007: Assessing the diversity of pennate benthic diatoms in calcifying biofilms of hard water creeks. – Pp. 11-14 in: Kusber, W.-H. & Jahn, R. (ed.): Proceedings of the 1st Central European Diatom Meeting 2007. – Berlin. text PDF (1154 KB)
  • Cocquyt, C., Taylor, J., Kusber, W.-H., Archibald, C., Harding, W. & Jahn, R. 2007: Digitizing African Surirellaceae: a pilot study. – Pp. 25-30 in: Kusber, W.-H. & Jahn, R. (ed.): Proceedings of the 1st Central European Diatom Meeting 2007. – Berlin. Full text PDF (1058 KB)
  • Kusber, W.-H. & Jahn, R. 2007: AlgaTerra Information System: Types data and data types. – Pp. 97-100 in: Kusber, W.-H. & Jahn, R. (ed.): Proceedings of the 1st Central European Diatom Meeting 2007. – Berlin. Full text PDF (87 KB)
  • Kusber, W.-H. & Jahn, R. 2007: Johannes Gerloff (1915-2000): A pioneer in using the Transmission Electron Microscope in diatom research, co-founder of Nova Hedwigia and Algae Curator at the BGBM Berlin-Dahlem. – Pp. 101-105 in: Kusber, W.-H. & Jahn, R. (ed.): Proceedings of the 1st Central European Diatom Meeting 2007. – Berlin. Full text PDF (232 KB)
  • Kusber, W.-H. & Jahn, R. 2007: Harmonisierung von Taxa-Listen für die Umsetzung der EU-WRRL aus Sicht von Taxonomie und Daten-Management. ­- Pp. 553-557 in N.N. (ed.): Erweiterte Zusammenfassungen der Jahrestagung 2006 der Deutschen Gesellschaft für Limnologie (DGL), Dresden, 25.-29. September 2006. - Werder.
  • Jahn, R. & Kusber, W.-H. 2006: Siberia under microscope. - Science First Hand 2006 (5): 16-20.
  • Kusber, W.-H. & Jahn, R. 2006: Ergebnisse der BMBF-finanzierten Pilotphase des AlgaTerra Verbundprojektes. – Pp. 164-168 in: Deutsche Gesellschaft für Limnologie (ed.): Jahrestagung 2005 (Karlsruhe). Werder.
  • Kusber, W.-H. & Jahn, R. 2006: BGBM-Diatom-List. Version 1.0 [online]. - Botanischer Garten und Botanisches Museum Berlin-Dahlem. Berlin. [http://www.algaterra.org/bgbm-diatom-list.htm]
  • Kusber, W.-H. & Jahn, R. 2006: BGBM-Phytoplankton-List. Version 1.0 [online]. - Botanischer Garten und Botanisches Museum Berlin-Dahlem. Berlin. [http://www.algaterra.org/bgbm-phytoplankton-list.htm]
  • Kusber, W.-H., Geissler, U. & Jahn, R. 2005: Rote Liste und Gesamtartenliste der Rotalgen (Rhodophyceae), Armleuchteralgen (Charophyceae) und Braunalgen (Phaeophyceae) von Berlin. –  18 pp. in: Landesbeauftragter für Naturschutz und Landespflege & Senatsverwaltung für Stadtentwicklung (ed.): Rote Listen der gefährdeten Pflanzen und Tiere von Berlin. CD-ROM, Version 1.2 - 07/2005. Berlin. Full text PDF
  • Kusber, W.-H., Glück, K. & Jahn, R.  2005: AlgaTerra Informationssystem für Mikroalgen: Inhalte und Stand der Modellierung. - Pp. 442-446 in: Deutsche Gesellschaft für Limnologie (ed.): Tagungsbericht 2004 (Potsdam), Berlin.
  • Geissler, U., Kusber, W.-H. & Jahn, R. 2005: Die Algenflora Berlins: Datenlage und Praxisrelevanz. Pp. 447-451 in: Deutsche Gesellschaft für Limnologie (ed.): Tagungsbericht 2004 (Potsdam), Berlin.
  • Kusber, W.-H., Glück, K. & Jahn, R.  2004: AlgaTerra Informationssystem für Mikroalgen: Inhalte und Stand der Modellierung. - P. 394-399 in: Deutsche Gesellschaft für Limnologie (ed.): Jahrestagung 2003 (Köln), Berlin.
  • Kusber, W.-H., Glück, K, Geoffroy, M. & Jahn, R. 2003: Typification - an extension of the Berlin Model. - In: Berendsohn, W.G.: MoReTax, Handling Factual Information Linked to Taxonomic Concepts in Biology. Schriftenreihe für Vegetationskunde 39: 57-70.
  • Kusber, W.-H., Jahn, R. & Geissler, U. 2003: Datensammlung für eine Rote Liste und Florenliste der Zieralgen und Diatomeen Berlins. – Pp. 796-800 in: Deutsche Gesellschaft für Limnologie (ed.) Tagungsbericht 2002. – Werder.
  • Kusber, W.-H. & Jahn, R. 2003: Annotated list of diatom names by Horst Lange-Bertalot and co-workers. - Version 3.0. [http://www.algaterra.org/Names_Version3_0.pdf] pdf-file, Version 3.0, (23 June 2003) (821 KB).
  • Kusber, W.-H. & Jahn, R. 2002: Standards für die Artidentifikation in der Limnologischen Forschung. - Pp. 858-863. In: Deutsche Gesellschaft für Limnologie (ed.): Jahrestagung 2001 (Kiel). Tutzing.
  • Kusber, W.-H., Huck, V., Treuber, C. & Jahn, R. 2002: Phykologische Bestandsaufnahme am Geo-Tag der Artenvielfalt 7./8. Juni 2002 in Berlin (Fort und Grünanlage Hahneberg in Staaken) - [http://www.bgbm.org/kusber/GEO-Tag-2002-Algen.htm].
  • Kusber, W.-H. & Jahn, R. 2002: Annotated list of diatom names by Horst Lange-Bertalot and co-workers. - Version 2.0. [http://www.algaterra.org/Names_Version2_0.pdf] pdf-file, Version 2.0, (2 August 2002) (797 KB). 
  • Kusber, W.-H. & Jahn, R. 2001: Algenvorkommen im nördlichen Grunewald (Berlin) am 3. GEO-Tag der Artenvielfalt, 8. - 9. Juni 2001. - http://www.bgbm.org/jahn/GEO-Tag/algen2001.htm.
  • Kusber, W.-H. & Jahn, R. 2001: Rote Listen limnischer Algen, Stand der Bearbeitung (Beitrag zur "Fachdiskussion über eine Neuauflage der Roten Liste des Landes Berlin" am 3.5.2001 beim Landesbeauftragten für Naturschutz und Landespflege, Berlin). URL: http://www.bgbm.org/jahn/RoteListenAlgen.htm.
  • Kusber, W.-H. & Jahn, R. 2000: Algen im Teltowkanal, Berlin-Treptow, am GEO-Tag der Artenvielfalt, 2. & 3. Juni 2000. URL: http://www.bgbm.org/jahn/GEO-Tag/Algen.htm.
  • Busse, S., Schulz, C.-J. & Jahn, R. (1998): Salzrückgang in Helbe und Urbach: Veränderungen der ökologischen Verhältnisse. - Gewässergütebericht des Freistaates Thüringen 1998: 41-43.
  • Jahn, R. 1995: Ehrenberg´s marked species on five mica. - Iconographia Diatomologica 1:101-107.
  • Jahn, R. & Geißler, U. 1993: Zur Bedeutung von Proben-Sammlungen mikroskopischer Organismen anhand von Diatomeen-Beispielen. – Festschr. Prof.W. Krutzsch – Mus. f. Naturk. Berlin: 19-26.
  • Jahn, R. 1990: Untersuchungen zur benthischen Diatomeenflora und -vegetation der Spree und angrenzender Kanäle im innerstädtischen Gebiet von Berlin (West). - Dissertation FB Biologie, Freie Universität Berlin.

     

Editorial work:

  • Borsch, T., Giere, P., Hoffmann, J., Jahn, R., Löhne, C., Nordt, B. & Ohl, M. 2011 (ed.): BioSystematics Berlin 2011. 21-27 February 2011 Programme and Abstracts. 434 pp. Berlin. Available from www.biosyst-berlin-2011.de.
  • Jahn, R. & Kusber, W.-H. (ed.) 2002+: AlgaTerra Information System [online]. Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin. Available from [http://www.algaterra.org]
  • Kusber, W.-H. & Jahn, R. (ed.) 2010: Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. 73 pp. - Berlin.
  • Kusber, W.-H. & Jahn, R. (ed.) 2007: Proceedings of the 1st Central European Diatom Meeting 2007. Berlin-Dahlem, 23–25 March 2007. 179 pp. – Berlin. [Contents]
  • Jahn, R., Kociolek, J.P., Witkowski, A. & Compère, P. 2001 (ed.): Lange-Bertalot-Festschrift: Studies on Diatoms; Gantner, Ruggell, 633 pp. Table of Contents.
  • Jahn, R., Meyer, B. & Preisig, H.R. (ed.) 1997: Microalgae: Aspects of diversity and systematics. - Nova Hedwigia 65, 452 pp.

 

Abstracts and Reports:

  • Kanzler, D., Kusber, W.-H. & Jahn, R. 2011: Mittelfristige Veränderungen in der Biodiversitätsdynamik von Diatomeen und ihre Bedeutung für die Indizierung der Gewässergüte im Berliner Gebiet der Stadtspree. - P. 54 in: Abstractband; Jahrestagung 2011 der Deutschen Gesellschaft für Limnologie (DGL). 12.-16. September 2011, Freising-Weihenstephan. München.
  • Mering, S. von, Kusber, W.-H., Löhne, C., Gleisberg, C., Zippel, E., Jahn, R. & Berendsohn, W. G. 2011: GBIF Germany: Plants, Algae and Protists – Handling and Providing Primary Biodiversity Data. - P. 113 in: N.N. (ed.): Botanikertagung 2011 Conference Book 18.-23. September 2011. Berlin.
  • Kusber, W.-H., Dröge, G., von Mering, S. & Jahn, R. 2011: GBIF-D Botanik, Algen und Protisten: Mobilisierung und Publikation primärer Biodiversitätsdaten für die Nutzung in internationalen Daten-Netzwerken. - P. 60 in: Abstractband; Jahrestagung 2011 der Deutschen Gesellschaft für Limnologie (DGL). 12.-16. September 2011, Freising-Weihenstephan. München.
  • Taskin, E., Jahn, R. & Öztürk, M. 2011: The mediterranean Cystoseira species with the first report of Cystoseira spinosa var. compressa (Ercegovic) Cormaci et al. from Turkey. p. 75. Abstracts of the Fifth European Phycological Congress, 4-9 September 2011, Rhodes, Greece.
  • Kanzler, D., Kusber, W.-H. & Jahn, R. 2011: Medium-term changes in the biodiversity of diatoms in the Spree urban river system (Berlin). p. 23. Abstracts of the 5th Central European Diatom Meeting, 24-27 March 2011, Szszecin, Poland.
  • Kusber, W.-H. & Jahn, R. 2011: Occurrence records: the smallest publishable units of biodiversity research. p. 28. Abstracts of the 5th Central European Diatom Meeting, 24-27 March 2011, Szszecin, Poland.
  • Abarca, N., Zimmermann, J. & Jahn, R. 2011: Gomphonema parvulum Kützing: Evaluation of some morphological and molecular characters. p. 13. Abstracts of the 5th Central European Diatom Meeting, 24-27 March 2011, Szszecin, Poland.
  • Jahn, R., Kusber, W.-H. & Patterson, D. 2011: The naming of microalgal protists: an example of the problems for the BioCode to resolve. – Pp. 171 in: Borsch, T., Giere, P., Hoffmann, J., Jahn, R., Löhne, C., Nordt, B. & Ohl, M. (ed.): BioSystematics Berlin 2011. 21-27 February 2011 Programme and Abstracts. Berlin.

  • Kusber, W.-H. & Jahn, R. 2011: AlgaTerra database for algal biodiversity. – Pp. 220 in: Borsch, T., Giere, P., Hoffmann, J., Jahn, R., Löhne, C., Nordt, B. & Ohl, M. (ed.): BioSystematics Berlin 2011. 21-27 February 2011 Programme and Abstracts. Berlin.

  • Silva, W.J., Malta, E.A., Ludwig, T.A., Jahn, R. & Menezes, M. 2011: Criteria of delimitation of the Cymbellaceae. I. Dorsiventrality. Pp. 339 in: Borsch, T., Giere, P., Hoffmann, J., Jahn, R., Löhne, C., Nordt, B. & Ohl, M. (ed.): BioSystematics Berlin 2011. 21-27 February 2011 Programme and Abstracts. Berlin.
  • Kusber, W.-H.,  Jahn, R., Michel, A., Güntsch, A. & Berendsohn, W. G. 2011: GBIF-D in its 10th year: Data mobilization and the development of taxonomic web services. – Pp. 220-221 in: Borsch, T., Giere, P., Hoffmann, J., Jahn, R., Löhne, C., Nordt, B. & Ohl, M. (ed.): BioSystematics Berlin 2011. 21-27 February 2011. Programme and Abstracts. Berlin.
  • Buckeridge, J.S., Reeves, J.M. & Jahn, R. 2011: Priorities in biology - the role of the new IUBS Ethics Commission in biological sciences. Pp. 74 in: Borsch, T., Giere, P., Hoffmann, J., Jahn, R., Löhne, C., Nordt, B. & Ohl, M. (ed.): BioSystematics Berlin 2011. 21-27 February 2011. Programme and Abstracts. Berlin. , Jahn, R. 2010: Special Session: Diatoms and genetic barcoding. Abstracts > presented at 21st International Diatom Symposium, Abstract Book, p.26.
  • Jahn, R. 2010: Special Session: Diatoms and genetic barcoding. Abstracts Presented at 21st International Diatom Symposium, Abstract Book, p.26.
  • Abarca, N., Zimmermann, J. & Jahn, R. 2010: Taxonomy of some species of the diatom genus Gomphonema using morphological and morphological data. Abstracts Presented at 21st International Diatom Symposium, Abstract Book, p.3.
  • Zimmermann, J., Gemeinholzer, B. & Jahn, R. 2010: Barcoding diatoms: water monitoring via molecular methods. Abstracts Presented at 21st International Diatom Symposium, Abstract Book, p.81.
  • Abarca, N. & Jahn, R. 2010: Insights into a tropical river (Mexico). – P. 5 in: Kusber, W.-H. & Jahn, R. (ed.): Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. Berlin.
  • Hagedorn, G., May, R., Schmidt, G., Kurz, M., Jahn, R. & Meinecke, P., B. 2010: Offene, frei verfügbare Online-Bestimmungsschlüssel. – GfBS Newsletter. 23: 22-23.
  • Jahn, R. 2010: Ausblick. – GfBS Newsletter. 23: 59.
  • Kusber, W.-H. & Jahn, R. 2010: Primary biodiversity data of diatoms in GBIF. – Pp. 33-34 in: Kusber, W.-H. & Jahn, R. (ed.): Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. Berlin.
  • Ognjanova-Rumenova, N. & Jahn, R. 2010: Fragilaria rhombus Ehrenberg – typification, morphology, biostratigraphic significance.– Pp. 30-31 in: Kusber, W.-H. & Jahn, R. (ed.: Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. Berlin.
  • Pfannkuchen, M., Marić, D., Godrijan, J., Precali, R., Jahn, R., Gemeinholzer, B., Zimmermann, J. & Batel, R. 2010: Regularly occurring domination of Skeletonema sp. in the winter phytoplankton of the northern Adriatic Sea. How to resolve the species?.– P. 37 in: Kusber, W.-H. & Jahn, R. (ed.): Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. Berlin.
  • Stachura-Suchoples, K. & Jahn, R. 2010: Examination of Navicula amphigomphus Ehrenberg: basionym for Neidium amphigomphus (Ehrenberg) Pfitzer.– P. 43 in: Kusber, W.-H. & Jahn, R. (ed.): Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. Berlin.
  • Wojtal, A.Z. & Jahn, R. 2010: Identity and taxonomy of Pinnularia gibba Ehrenberg. – P. 55 in: Kusber, W.-H. & Jahn, R. (ed.): Abstracts of the 4th Central European Diatom Meeting 2010. Reichenau/Bodensee, 12-14 March 2010. Berlin.
  • Friedl, T., Brinkmann, N., Mohr, K.I., Hodač, L. & Jahn, R. 2009: Molecular assessment of diatoms and cyanobacteria in biofilms on tufa stromatolites of karstwater creeks. – P. (S02) 2 in: Wilhelm, C. & al. (ed.): Plants for the Future. Botanikertagung 2009: Leipzig 06-09 /10-09, Leipzig
  • Jahn, R. & Kusber, W.-H. 2009: Naming algal biodiversity: How to meet the provisions of the nomenclatural code(s). – P. (S02) 8 in: Wilhelm, C. & al. (ed.): Plants for the Future. Botanikertagung 2009: Leipzig 06-09 /10-09, Leipzig.
  • Julius, M., Mayama, S., Katoh, K., Ohmori, H., Seino, S., Osaki, H., Hoffer, J., Lingle, K., Conroy, K., Lee, J.H., Cheong, Ch., Lobo, E.A., Witkowski, A., Srivibool, R.,  Muangphra, P., Jahn, R., and Kulikovskiy, M. 2009: SIMRIVER: an international educational tool expanding understanding of aquatic ecosystems and enhancin appreciation of diatoms. Abstract North American Diatom Symposium, Iowa, Sept. 2009.
  • Marić, D., Godrijan, J., Pfannkuchen, M., Burić, Z., Jahn, R., Precali, R. 2009: Winter bloom of Skeletonema costatum 2009. Do we know what is actually blooming? in Proceeding of abstracts of the 10th  Croatian Biological Congress with international participation, 14th-20th September 2009 Osijek, (Ed.. V. Besendorfer, et al.) Zagreb, 226-227.
  • Wojtal A. Z. & Jahn R. 2009: Reinvestigation of Ehrenberg’s Pinnularia type material, from Chile. – Pp. 106-107 in: 28th International Phycological Conference Algal biodiversity in ecosystems of protected areas, 21-24 May 2009, Book of Abstracts. – Szczecin-Cieszyno Drawskie.
  • Zimmermann, J., Gemeinholzer, B., Kube, M., Reinhardt, R. & Jahn, R. 2009: Watermonitoring via DNA barcoding: diatoms as bioindicators. – P. 142 in N.N. (ed.) Systematics 10-14 August 2009. Program and abstracts. Leiden.
  • Bininda-Emonds, O.R.P., Aspöck, U., Bateman, R.M., Burckhardt, D., Goujet, D.F., Jahn, R. & Preisfeld, A. 2008: BioSyt EU: a new federation to further biological systematics in Europe. – P. 170 in Gradstein, S.R. et al. (ed.): Systematics 2008. Programme and Abstracts, Göttingen 7-11 April 2008. Universitätsverlag Göttingen, Göttingen.
  • Brinkmann, N., Arp, G., Jahn, R. & Friedl, T. 2008: Diversity of diatoms dominating biofilms on tufa stromatolites o fhard water creeks. – P. 36 in Cantonati, M., Scalfi, A. & Bertuzzi, E. (ed.): 2nd Central Europan Diatom Meeting, Abstract Book, 12 June 2008 - 15 June 2008 Trento (Italy), Trento.
  • Gemeinholzer, B., Zimmermann, J. & Jahn, R. 2008: Establishing DNA-Barcoding Methods in Diatoms for Diversity Assessments. – P.165 in N.N. (ed.):Botany 2008 26.-30. July 2008, Vancouver, Canada. Scientific Abstracts, Vancouver.
  • Israde-Alcantara, I., Abarca, N., Segura-García, V., Ector, L., Cantoral-Uriza, E. & Jahn, R. 2008: Diatoms of the Lerma River : Water quality estimation of a heavily polluted river. Preliminary results. – P. 151 in Jasprica, N., Car, A. & Čalić, M. (ed.): 20th International Diatom Symposium. Abstract Book, 7-13 September 2008. Dubrovnik , Croatia.
  • Jahn, R. 2008: 10 Jahre GfBS – Rückblick und Ausblick. – GfBS newsletter 20: 58.
  • Jahn, R. 2008: Diatomeen-Taxonomie: Morphologische versus Molekulare Daten. – Pp. 14-15 in N.N. (ed.): Tagung der Sektion Phykologie der Deutschen Botanischen Gesellschaft, So, 30.03.2008 - Mi, 02.04.2008 Lutherstadt Wittenberg. Leipzig.
  • Jahn, R.. 2008: Diatom taxonomy - morphological versus molecular data. – P. 56 in Jasprica, N., Car, A. & Čalić, M. (ed.): 20th International Diatom Symposium. Abstract Book, 7-13 September 2008. Dubrovnik , Croatia.
  • Kapetanović, T. & Jahn, R.. 2008: Diatoms of a poor fen (Bijambare, Bosnia and Herzegovina). – P. 159 in Jasprica, N., Car, A. & Čalić, M. (ed.): 20th International Diatom Symposium. Abstract Book, 7-13 September 2008. Dubrovnik , Croatia.
  • Kapetanović, T. & Jahn, R. 2008: Diatoms of mountain fens in Bosnia and Herzegovina – first results. – P. 38 in Cantonati, M., Scalfi, A. & Bertuzzi, E. (ed.): 2nd Central Europan Diatom Meeting, Abstract Book, 12 June 2008 - 15 June 2008 Trento (Italy), Trento.
  • Lenz, S., Jahn, R. & Gemeinholzer, B. 2008: Taxonomic assessment of morphologic al and molecular data from selected clones of the family Surirellaceae (Bacillariophyta). – P. 252 in Gradstein, S.R. et al. (ed.): Systematics 2008. Programme and Abstracts, Göttingen 7-11 April 2008. Universitätsverlag Göttingen, Göttingen.
  • Stachura-Suchoples, K., Jahn, R., Kovar-Eder, J. & Sun, G. 2008: The Middle Miocene Record of Pliocaenicus cathayanus-jilinensis complex from Changbai (Jilin Province, China). – P. 220 in Jasprica, N., Car, A. & Čalić, M. (ed.): 20th International Diatom Symposium. Abstract Book, 7-13 September 2008. Dubrovnik, Croatia.
  • Zimmermann, J., Gemeinholzer, B., Kube, M. & Jahn, R. 2008: Diatoms as bioindicators: watermonitoring via DNA barcoding. – P. 157 in Gradstein, S.R. et al. (ed.): Systematics 2008. Programme and Abstracts, Göttingen 7-11 April 2008. Universitätsverlag Göttingen, Göttingen.
  • Abarca, N., Jahn, R., Israde, I. & Blanco, S. 2007: Diatoms as Indicators of Water Quality in the Lerma River, Mexico – Pp. 7-8 in: Kusber, W.-H. & Jahn, R. (ed.): 1st Central European Diatom Meeting (1st CE-DiatoM), 23-25 March 2007. Program and Abstract. Berlin.
  • Brinkmann, N., Behnke, A., Jahn, R., Bruns, S. & Friedl, T.: Assessing the diversity of diatoms in calcifying biofilms of two hardwater creeks – P. 10 in: Kusber, W.-H. & Jahn, R. (ed.): 1st Central European Diatom Meeting (1st CE-DiatoM), 23-25 March 2007. Program and Abstract. Berlin.
  • Cocquyt, C., Taylor, J., Kusber, W.-H., Archibald, C., Harding, W. & Jahn, R. 2007: Digitizing African Surirellaceae: a pilot study – Pp. 16-17 in: Kusber, W.-H. & Jahn, R. (ed.): 1st Central European Diatom Meeting (1st CE-DiatoM), 23-25 March 2007. Program and Abstract. Berlin.
  • Gemeinholzer B. & Jahn R. 2007: Molecular tools: will they change everything in Diatom taxonomy? – Pp. 21-22 in: Kusber, W.-H. & Jahn, R. (ed.): 1st Central European Diatom Meeting (1st CE-DiatoM), 23-25 March 2007. Program and Abstract. Berlin.
  • Gemeinholzer, T. & Jahn, R. 2007: Establishment of DNA- Barcoding methods to detect and evaluate diatom biodiversity, evolution, and biotechnology application - Pp. 12, 27 in:N.N. (ed.): DNA Barcoding in Europe. Leiden, 3.-5. März 2007. Programm and Abstract.
  • Jahn, R. 2007: Ausblick. –  GfBS newsletter 18: 57-58.
  • Jahn, R. 2007: 10 Jahre GfBS – Rückblick und Ausblick. –  GfBS newsletter 19: 56-57.
  • Jahn, R. & Kusber, W.-H. 2007: Naming and ranking in phycology. – P. 35 in N.N. (ed.): 9. Jahrestagung der Gesellschaft für Biologische Systematik (GfBS). Wien, 20.-23. Februar 2007, Naturhistorisches Museum Wien. Programm, Abstracts, Wien.
  • Kirchhoff A., Holetschek J., Hahn A., Kelbert P., Jahn, R. & Berendsohn W.G. 2007: The Botanical Node and the German GBIF Network – P. 37 in: Kusber, W.-H. & Jahn, R. (ed.): 1st Central European Diatom Meeting (1st CE-DiatoM), 23-25 March 2007. Program and Abstract. Berlin.
  • Kusber, W.-H., Cocquyt, C. & Jahn, R. 2007: Dissemination of historical biodiversity data from collections: East African Surirella-taxa (Bacillariophyta) as a pilot study. – P. 134 in N.N. (ed.): 9. Jahrestagung der Gesellschaft für Biologische Systematik (GfBS). Wien, 20.-23. Februar 2007, Naturhistorisches Museum Wien. Programm, Abstracts, Wien.
  • Kusber, W.-H. & Jahn R.: Preface.  – Pp. 3-4 in: Kusber, W.-H. & Jahn, R. (ed.): Proceedings of the 1st Central European Diatom Meeting 2007. – Berlin.
  • Kusber, W.-H. & Jahn R.: Johannes Gerloff (1915-2000): A pioneer in using the Transmission Electron Microscope in diatom research, co-founder of Nova Hedwigia and Algae Curator at the BGBM Berlin-Dahlem – P. 48 in: Kusber, W.-H. & Jahn, R. (ed.): 1st Central European Diatom Meeting (1st CE-DiatoM), 23-25 March 2007. Program and Abstract. Berlin.
  • Abarca, N., Jahn, R. & Israde, I.: Diatom community analysis and quality assessment of the pollunted tropical Lerma River (Mexico). P. 5 in: Likoshway, Y.V. & Crawford, R.M.. (ed.), 19th International Diatom Symposium: Abstracts. Listvyanka, Russia 28. August - 3 September 2006. – Irkutsk, Russia.
  • Abarca, N., Israde Alcántara, I., Segura-García, V., Cantoral-Uriza, E., Ector, L. & Jahn, R.: Résultats préliminaires pour l'évaluation de la qualité de l'eau de la Rivière Lerma (Mexique): espèces dominantes dans les sources et le cours principal et proposition de monitorage. – P. 73 in: Ector, L., Rimet, F. & Georges, A. (ed.): 25ème Colloque de l'Association des Diatomistes de Langue Française, 25-28 septembre 2006. Programme scientifique, résumés des communications et posters. – Caen, France.
  • Abarca, N. & Jahn, R. 2006: Diatoms of the Lerma Catchment Area, Mexico: further results. - P. 5 in: Houk, V. et al. (ed.): Abstracts; 20. Treffen Deutschsprachiger Diatomologen mit internationaler Beteiligung, 23.-26. March 2006, Třeboň, Czech Republic.
  • Cocquyt, C., Jahn, R. & Salmain, M.-S. 2006: Radiation and speciation in the East African Ancient Lakes: a cladistic approach based on the diatom family Surirellaceae. - P. 15 in: Kossler, A., Kohring, R. & Riedel, F. (ed.): Abstracts of the International Symposium Speciation in Ancient Lakes, SIAL IV, Berlin, September 4-8, 2006 Berlin. Berliner Paläobiologische Abhandlungen 9: ?..
  • Jahn, R., C. Cocquyt & W.-H. Kusber 2006: Re-evaluation and types of East African Surirella taxa based on a historical collection at the Botanic Garden and Botanical Museum Berlin-Dahlem. In: Kossler A., R. Kohring & F. Riedel (ed.) Abstract of the International Symposium Speciation in Ancient Lakes, SIAL IV, Berlin, September 4-8, 2006. Berliner Paläobiologische Abhandlungen 9: 30.
  • Jahn, R. 2006: Diatom Diversity in the National Park Chilbosan, DPR Korea. Abstract of the 19th International Diatom Meeting.
  • Kusber, W.-H. & Jahn, R. 2006: Selected types of marine diatoms, described by C.G. Ehrenberg. – P. 19 in: Houk, V. et al. (ed.): Abstracts; 20. Treffen Deutschsprachiger Diatomologen mit internationaler Beteiligung, 23.-26. March 2006, Třeboň, Czech Republic.
  • Kusber, W.-H. & Jahn, R. 2006: Harmonisierung von Algen-Taxalisten für die Umsetzung der EU-WRRL aus Sicht von Taxonomie und Daten-Management. – Pp. 108-109 in Anon. (ed.): Abstractband; Jahrestagung 2006 der Deutschen Gesellschaft für Limnologie (DGL). 25. - 29. September 2006. Dresden.
  • Abarca, N., Israde, I., Ector, L. & Jahn, R.: Diatomeas de la cuenca baja del Río Lerma (México): primeros resultados para el manejo ambiental de los ríos tropicales con una nueva generación de indicadores biológicos. – P. 114 in: Anon. (ed.), VII Congreso de Ficología de Latinoamérica y el Caribe y V Reunión Iberoamericana de Ficología, Cuba. Libro de Resúmenes. – La Habana
  • Friedl, T., Behnke, A., Kipp, V., Jahn, R. & Arp, G. 2005: Assessing biodiversity of diatoms from calcifying biofilms of hard water creeks. Durban.
  • Jahn, R., Kusber, W.-H., Hahn, A. & Berendsohn, W.G. 2005: AlgaTerra: calibrating micro algal information on the Internet. – TDWG Annual Meeting 11-18 September 2005, St Petersburg, Russia.
  • Jahn, R. & Kusber, W.-H. 2005: Linking the past to the future: the AlgaTerra Information System.  P. 663  in: XVII International Botanical Congress, Vienna 17-23 July 2005. Abstracts.
  • Kasten, J., Gutowski, A., Hofmann, G., Mischke, U., Schönfelder I., Kusber, W.-H. & Jahn, R.: Die Algentaxonomie Deutschlands: Gegenwart und Zukunft. – Pp. 156-157 in: Anon. (ed.), Abstractband; Jahrestagung 2005 der Deutschen Gesellschaft für Limnologie (DGL). 26-30. September 2005. – Karlsruhe.
  • Kusber, W.-H. & Jahn, R.: Diatomeen in der Ehrenberg Sammlung. – Pp. 29-30 in: Anon. (ed.), Abstractband, 19. Treffen Deutschsprachiger Diatomlogen mit internationaler Beteiligung. 10.-13. März 2005. – Neuhaus/Dierhagen.
  • Kusber, W.-H., Geissler, U. & Jahn, R. 2005: Rote Liste und Gesamtartenliste der Rotalgen (Rhodophyceae), Armleuchteralgen (Charophyceae) und Braunalgen (Phaeophyceae) von Berlin. –  18 pp. in: Landesbeauftragter für Naturschutz und Landespflege & Senatsverwaltung für Stadtentwicklung (ed.): Rote Listen der gefährdeten Pflanzen und Tiere von Berlin. CD-ROM, Version 1.2 - 07/2005. Berlin.
  • Kusber, W.-H. & Jahn, R.: Ergebnisse der BMBF-finanzierten Pilotphase des AlgaTerra Verbundprojektes. – Pp. 160-161 in: Anon. (ed.), Abstractband; Jahrestagung 2005 der Deutschen Gesellschaft für Limnologie (DGL). 26-30. September 2005. – Karlsruhe.
  • Elbrächter, M., Jahn, R., Kusber, W.-H. & Hoppenrath, M. 2004: Peridinium splendor-maris Ehrenberg is an Alexandrium-species but not Blepharocysta splendor-maris sensu Stein, 1883! – P. 142 in: Programme and Abstracts. 11th International Conference on Harmful Algae, 15-19 Nov., Cape Town, South Africa.
  • Geissler, U., Kusber, W.-H. & Jahn, R. 2004: The diatom flora of Berlin (Germany): an overview. P. 138 in: Witkowski, A., Radziejewska, T., Wawrzyniak-Wydrowska, B., Daniszewska-Kowalczyk & Bąk, M. (ed.): 18th International Diatom Symposium, Programme and Abstracts. 2-7 September 2004 Międzyzdroje, Poland.
  • Jahn, R., Glück, K. & Kusber, W.-H. 2004: Das AlgaTerra Informationssystem: Verknüpfung von historischen und aktuellen Daten für zukünftige Diatomeen-Forschungen. P. 8 in: 18. Tagung Deutschsprachiger Diatomologen an der Limnologischen Station der Technischen Universität München in Iffeldorf. – Abstracts.
  • Jahn, R., Glück, K. & Kusber, W.-H. 2004: AlgaTerra Information System: linking the past to the future. P. 71 in: Witkowski, A., Radziejewska, T., Wawrzyniak-Wydrowska, B., Daniszewska-Kowalczyk & Bąk, M. (ed.): 18th International Diatom Symposium, Programme and Abstracts. 2-7 September 2004 Międzyzdroje, Poland.
  • Jahn, R., Kusber, W.-H., Elbrächter, M. & Hoppenrath, M. 2004: Original material of  Ehrenberg's Cryptomonas lima rediscovered: the identity of Prorocentrum lima reinvestigated. – P. 142 in: Programme and Abstracts. 11th International Conference on Harmful Algae, 15-19 Nov., Cape Town, South Africa.
  • Jahn, R., Kusber, W.-H. & Glück, K. 2004: AlgaTerra progress report: potentials of a virtual collection for micro algal research. P. 34 in:7. Jahrestagung der Gesellschaft für Biologische Systematik. Staatliches Museum für Naturkunde Stuttgart 14. - 17. September 2004. Abstracts of  talks and posters.
  • Jahn, R., Lazarus, D., Glück, K., Jobst, A. & Kusber, W.-H. 2004: The AlgaTerra project: safeguarding of historical  information  for biodiversity research. Pp. 55-56 in: Zippel, E., Greuter, W. & Stevens, A.-D. (ed.) Botanic Gardens: Awareness for Biodiversity (International Scientific Symposium, Programme and Abstracts). Berlin.
  • Kusber, W.-H., Reisser, W., Glück, K. & Jahn, R. 2004: The first Internet bibliography for aero-terrestrial algae as part of the AlgaTerra Information System. P. 174 in: Witkowski, A., Radziejewska, T., Wawrzyniak-Wydrowska, B., Daniszewska-Kowalczyk & Bąk, M. (ed.): 18th International Diatom Symposium, Programme and Abstracts. 2-7 September 2004 Międzyzdroje, Poland.
  • Kusber, W.-H. & Jahn, R. 2004: The role of botanic gardens for the biodiversity of algae: the Botanic Garden Berlin-Dahlem. Pp. 33-34 in: Zippel, E., Greuter, W. & Stevens, A.-D. (ed.) Botanic Gardens: Awareness for Biodiversity (International Scientific Symposium, Programme and Abstracts). Berlin.
  • Kusber, W.-H., Glück, K. & Jahn, R. 2004: The AlgaTerra database including the typification module and Ehrenberg's types. - Pp. 146-147 in: Berendsohn, W. G. & Oehlschlaeger, S. (ed.): GBIF-D: German Participation in the Global Biodiversity Information Facility. Projects in the German National Programme for the Global Biodiversity Information Facility 2003-2006. Status Report 2004. - PT-DLR & BGBM. Bonn & Berlin.
  • Kusber, W.-H. & Jahn, R.  2004 "2003": Ehrenberg's original material: relevance for studies in systematics.  P. 35 in: Fritz,  U. (ed.): Abstracts of the 6th Annual Congress of the Gesellschaft für Biologische Systematik (GfBS, Society for Biological Systematics). Organisms, Diversity & Evol. 3, Electronic Suppl. 17: 1-60. [28 January 2004].
  • Jahn, R. & Kusber, W.-H. 2004 "2003": Ehrenberg's types of generic diatom names within the AlgaTerra database project. AlgaTerra. P. 29 in: Fritz,  U. (ed.): Abstracts of the 6th Annual Congress of the Gesellschaft für Biologische Systematik (GfBS, Society for Biological Systematics). Organisms, Diversity & Evol. 3, Electronic Suppl. 17: 1-60. [28 January 2004].
  • Jahn, R., Crawford, R.M., Friedl, T., Lazarus, D., Medlin, L., Reisser, W., Beszteri, B., Glück, K., Hamann, K., Hepperle, D., Hinz, F., Huck, V., Jobst, A., Kasten, J., Kusber, W.-H., Salisch, M., Strieben, S. 2003: The BIOLOG project AlgaTerra: a database for research on microalgae diversity and systematics. - P. 9 in: Organisms, Diversity & Evol. 3, Electronic Suppl. 2.
  • Jahn, R. & Kusber, W.-H. 2003: Typification of Ehrenberg's diatom genera within the AlgaTerra database project. - P. 94 in: Book of Abstracts. Third European Phycological Congress, Belfast, 21-26 July 2003.
  • Kusber, W.-H. & Jahn, R. 2003: Ehrenberg's types of phytoflagellates. P. 94 in: Book of Abstracts. Third European Phycological Congress, Belfast, 21-26 July 2003.
  • Jahn, R., Glück, K. & Kusber, W.-H. 2003: The AlgaTerra database including the typification module and Ehrenberg’s types. Pp. 185-186 in: Sustainable use and conservation of biological diversity. A challenge for society. – Symposium Report, Part A.
  • Jahn, R., Huck, V., Kusber, W.-H. & Glück, K. 2003: Banque de données AlgaTerra: projet de typification des taxons de diatomées d'Ehrenberg. P. 21 in Cambra, J., Ector, L., Gomà, J., Ortiz, R. & Granier, G. (ed.): Résumés des communications, 22ième colloque de l'ADLaF., Espot, Espagne.
  • Huck, V. & Jahn, R. 2003: Les diatomées de la rivière Ixcanal (El Salvador, Amérique Centrale): diversité et problèmes taxinomiques. p. 20 in Cambra, J., Ector, L., Gomà, J., Ortiz, R. & Granier, G. (ed.): Résumés des communications, 22ième colloque de l'ADLaF., Espot, Espagne.
  • Kusber, W.-H. & Jahn, R. 2003: Mikroalgen-Originalmaterial von C.G. Ehrenberg: Wert für die Systematische Forschung. - P. 38 in: Programm und Kurzfassungen. 6. Jahrestagung der Gesellschaft für Biologische Systematik, Dresden, 16.-18. September 2003.
  • Jahn, R., Huck, V. & Kusber, W.-H.: 2003: Typifizierung von Ehrenbergs Diatomeen - Fortschritte und Probleme. - Abstract 17 in Abstractband; 17. Treffen deutschsprachiger Diatomologen mit internationaler Beteiligung, Bredbeck (3.4.-6.4.2003).
  • Glück K., Kusber W.-H. & Jahn R. 2003: AlgaTerra - Applying Type Designation and Factual Data to a Berlin Model database. Abstract. Taxonomic Databases Working Group, Annual Meeting, 25-26 October 2003, Oeiras, Lisboa, Portugal. - [http://www.tdwg.org/2003meet/TDWG2003.htm]
  • Jahn, R. 2002: Typification of Ehrenberg's diatom names: a progress report. P. 56.  In: Book of Abstracts. 17th International Diatom Symposium, Ottawa, Canada,  25-31 August 2002.
  • Glück, K., Kusber, W.-H., Berendsohn, W.G., Geoffroy, M., Güntsch A. & Jahn, R. 2002: The BGBM Model: Type Designation in AlgaTerra. In: Book of Abstracts. Taxonomic Databases Working Group (TDWG) Annual Meeting, 16-20 October 2002, Indaiatuba, SP, Brazil.
  • Jahn, R., Crawford, R.M., Friedl, T., Lazarus, D., Medlin, L., Reisser, W., Beszteri, B., Glück, K., Hamann, K., Hepperle, D., Hinz, F., Huck, V., Jobst, A., Kasten, J., Kusber, W.-H., Salisch, M., Strieben, S. 2002: Datenverfügbarkeit für die Systematische Forschung an Mikroalgen. Pp. 21-22 in: Programm und Abstracts, 5. Jahrestagung der Gesellschaft für Biologische Systematik, 18.-20. September 2002, München.
  • Huck, V. & Jahn, R. 2002: Beitrag zur Diatomeen-Diversität El Salvadors (Mittelamerika). Pp. 27-28 in: Rott, E. & Binder, N. (ed.): 16. Treffen Deutschsprachiger Diatomologen mit internationaler Beteiligung, 15.-17. März 2002, Innsbruck.
  • Kusber, W.-H., Jahn, R. & Geissler, U. 2002: Datensammlung für eine Rote Liste und Florenliste der Zieralgen und Diatomeen Berlins. - Pp. 75-76 in: Abstractband; Jahrestagung 2002 der Deutschen Gesellschaft für Limnologie (DGL). 30. September - 4. Oktober 2002, Braunschweig.
  • Kusber, W.-H., Geissler, U. & Jahn, R. 2002: Eine Rote Liste für Diatomeen in Berlin: Notwendigkeit, Datenlage und Umsetzung. Pp. 57-58 in: Rott, E. & Binder, N. (ed.): 16. Treffen Deutschsprachiger Diatomologen mit internationaler Beteiligung, 15.-17. März 2002, Innsbruck.
  • Jahn, R.,  Medlin, L., Crawford, R.M., Friedl, T., Lazarus, D., Gärtner, G., Kusber, W.-H.,  Beszteri, B.,   Hamann, K., Hepperle, D., Hinz, F., Huck, V., Jobst, A., Kasten, J., Strieben, S. & Teske, K. 2002: Taxonomische, molekulare und ökologische Information zu Diatomeen: Planung des Informations-Systems "AlgaTerra". Pp. 51-52 in: Rott, E. & Binder, N. (eds): 16. Treffen Deutschsprachiger Diatomologen mit internationaler Beteiligung, 15.-17. März 2002, Innsbruck.
  • Jahn, R.,  Beszteri, B.,  Crawford, R.M., Friedl, T., Hamann, K.,Hepperle, D., Hinz, F.,  Jobst, A., Kusber, W.-H.,  Lazarus, D., Medlin, L., Reisser, W., Salisch, M., Strieben, S. Teske, K. & An de Peer, Y. 2002: AlgaTerra: an information system for terrestrial algal biodiversity. A synthesis of taxonomic, molecular and ecological information. Pp. 36 in: Anonymous (ed.) Program & Abstracts; International Meeting: Culture Collections of algae: increasing accessibility and exploring algal biodiversity, Göttingen, 2.-6. September 2002. - Göttingen.
  • Edlund, M.B. & Jahn, R. 2001: Report of a workshop on ’Biogeography and Endemism of Diatoms.’ – P.p. 575-588 in: Economou-Amilli, A. (ed.): Proceedings 16th International Diatom Symposium, 25 August – 1 September 2000, Athens.
  • Jahn, R. 2001: AlgaTerra - an information system for terrestrial algal biodiversity: a synthesis of taxonomic, molecular and ecological information. Pp. 230-231. In: BIOLOG - German Programme on Biodiversity and Global Change. Status Report 2001. Bonn. http://www.dlr.de/PT/Umwelt/F70000/F73000/Status%20Report%202001/Status%20Report%202001.pdf
  • Kusber, W.-H., Teske, K. & Jahn, R. 2001: The Algaterra information system including the IDEAL-Module. Pp. 232-233. In: BIOLOG - German Programme on Biodiversity and Global Change. Status Report 2001. Bonn. http://www.dlr.de/PT/Umwelt/F70000/F73000/Status%20Report%202001/Status%20Report%202001.pdf
  • Kusber, W.-H. & Jahn, R. 2001: Rote Listen limnischer Algen, Stand der Bearbeitung (Beitrag zur "Fachdiskussion über eine Neuauflage der Roten Liste des Landes Berlin" am 3.5.2001 beim Landesbeauftragten für Naturschutz und Landespflege, Berlin).  [http://www.bgbm.org/jahn/RoteListenAlgen.htm].
  • Jahn, R., Kusber, W.H. & Teske, K. 2001: The project AlgaTerra: Outline of an information system for terrestrial algae biodiversity. TDWG-Abstracts. 
  • Jahn, R. 2000: Ehrenberg in Greece: Worldwide Cooperation of Scientists in the 19th Century. - 16th International Diatom Symposium, Athens, Abstracts: 53.
  • Jahn R. 1999: Historical diatom biodiversity of Lake Malawi, East Africa: A study on 100 years old samples. Abstract, XVI. International Botanical Congress, St. Louis.
  • Busse, S., Jahn, R. & Schulz, C.J. 1997: Desalinization effects on benthic diatom communities in two creeks in Thuringia, Germany (Abstract). - Phycologia 36 (4, Supplement): 14.
  • Jahn, R. 1994: On Otto Müller´s concept of the genus Gomphocymbella. - 13th International Diatom Symposium, Italien, Abstract book: 67.