Dr. Thomas Becker
Researcher and lecturer
Consulting our: on appointment
Campus II | Behringstr. 21 | Room F 170
Research Fields Projects Vita Publications Mediterranean House
Research Fields
I am interested in basic and applied botanical-ecological research both on the species and community level:
- Conservation and Restoration Ecology
- Population Biology of Endangered and Invasive Plants
- Vegetation Change
- Vegetation Analysis
- Vegetation Classification of Grasslands
- Eco-informatics (Vegetation Data-bases)
Projects
BIOCHANGE – Changes in phyto-diversity central Europe
Plant communities changes due to e.g. land-use change, atmospheric depositions or climate change. In this project, together with the Universität of Göttingen (C. Leuschner), I study vegetation changes in deciduous forests, running waters, dry grasslands, and arable fields over the last 50 years: www.uni-goettingen.de/de/76754.html
REINTRODUCTION STEPPE PLANTS
In this project, we reintroduce the endangered plants Astragalusexscapus, Pulsatillapratensis subsp. nigricans and Scorzonerapurpurea in steppe grasslands in Thuringia. The project is associated with the LIFE project “Conservation and development of the steppe grasslands in Thuringia” of the Thuringian Ministry for Land-use, Conservation and Environment (TMLFUN). It is funded by the LIFE programme of the European Union: www.steppenrasen.thueringen.de and by the German Federal Foundation for Environment (DBU). Participants: Lisa Thill and Oliver Kienberg.
Vita
Current function
since 03/2012 Scientific staff in the Department of Geobotany of the Faculty of Regional and Environmental Sciences of the Trier University
Post-doc
2010-2012 Coordinator of the project BioChange-Germany, funded by the State of Lower-Saxony (Cluster of Excellency ‘Functional Biodiversity Research’), Department of Ecology and Ecosystem Research, Albrecht von Haller Institute for Plant Sciences, University of Göttingen
2004-2010 Scientific staff at the Department of Plant Ecology, Faculty of Biology, University of Marburg
2003 Scientific staff at the Geobotanical Institute of the Swiss Federal Institute of Technology in Zurich (ETH)
Doctor’s degree
2003 Dr. rer. nat. in biology (main focus: plant ecology), Faculty of Biology, University of Göttingen. Doctoral thesis: “Consequences of long-time fragmentation on populations of the relictic steppe grassland plant Astragalusexscapus (Fabaceae)”
1999 Guest scientist at the Helmholtz Centre for Environmental Research (UFZ), Department of Community Ecology, Molecular Ecology group
1998-2001 Doctoral stipendiary with a grant by the German Federal Foundation for Environment (DBU) at the Systematic-Geobotanical Institute, Faculty of Biology, University of Göttingen
Freelance work
1997 Project work for several landscape planning offices
Study degree
1996 Diploma at the Systematic-Geobotanical Institute of the University of Göttingen, Diploma thesis about the “Vegetation of rock ledges and dry grasslands in the lower Unstrut river valley (Saxony-Anhalt)”
Study
1990-1996 Study of biology (botany and zoology) and soil science in Göttingen
Publications
ORCID ID: 0000-0002-7942-5575
Submitted, accepted, or in press
Aleksanyan, A., Biurrun, I., Belonovskaya, E., Cykowska-Marzencka, B., Berastegi, A., Hilpold, A., Kirschner, P., Mayrhofer, H., Shyriaieva, D., Vynokurov, D., Becker, T., Becker, U., Dembicz, I., Fayvush, G., Frank, D., García-Mijangos, I., Magnes, M., Oganesian, M., Palpurina, S., Ünal, A., Vasheniak, Y., Dengler, J. Biodiversity of dry grasslands in Armenia: First results from the 13th EDGG Field Workshop in Armenia. Palaearctic Grasslands.In press
Becker, T., Kienberg, O., Thill, L. Long-term extinction related to habitat fragmentation in the threatened steppe grassland perennial Scorzonera purpurea – a revisitation study based on 436 years of historic floras and herbarium records. Submitted
Becker, T., Stahlmann, C., Bayindir, S., Dierschke, H., Bergmeier, E. Community and species diversity in silicicolous grasslands in the eastern Rhenish Massif (Western Germany). Submitted
Thill, L., Kienberg, O., Becker, T. Experimental reintroduction of the endangered Purple Viper’s Grass (Scorzonera purpurea L.) in steppe grasslands: effects of plant origin and target habitat. Submitted
2022
Becker, T., Stahlmann, C., Bayindir, S., Dierschke, H., Bergmeier, E. 2022. Syntaxonomy and diversity of acidic grasslands in the eastern Rhenish Massif (Western Germany). Tuexenia 42 (doi: 10.14471/2022.42.004)
Meier, T., Hensen, I., Partzsch, M., Becker, T. (2022): Are recent climate change and airborne nitrogen deposition responsible for vegetation changes in a central German dry grassland between 1995 and 2019? Tuexenia 42 (accepted).
2021
Biurrun, I., Pielech, R., Dembicz, I., Gillet, F., Kozub, Ł., Marcenò, C., Reitalu, T., Van Meerbeek, K., Guarino, R., Chytrý, M., Pakeman, R., Preislerová, Z., Axmanová, I., Burrascano, S., Bartha, S., Boch, S., Bruun, H.H., Conradi, T., De Frenne, P., Essl, F., Filibeck, G., Hájek, M., Jiménez‐Alfaro, B., Kuzemko, A., Molnár, Z., Pärtel, M., Pätsch, R., Prentice, H.C., Roleček, J., Sutcliffe, L.M.E., Terzi, M., Winkler, M., Wu, J., Aćić, S., Acosta, A.T.R., Afif, E., Akasaka, M., Alatalo, J.M., Aleffi, M., Aleksanyan, A., Ali, A., Apostolova, I., Ashouri, P., Bátori, Z., Baumann, E., Becker, T., Bello, F., Belonovskaya, E., Benito Alonso, J.L., Berastegi, A., Bergamini, A., Bhatta, K.P., Bonini, I., Büchler, M.‐O., Budzhak, V., Bueno, Á., Buldrini, F., Campos, J.A., Cancellieri, L., Carboni, M., Ceulemans, T., Chiarucci, A., Chocarro, C., Conti, L., Csergő, A.M., Cykowska‐Marzencka, B., Czarniecka‐Wiera, M., Czarnocka‐Cieciura, M., Czortek, P., Danihelka, J., Deák, B., Demeter, L., Deng, L., Diekmann, M., Dolezal, J., Dolnik, C., Dřevojan, P., Dupré, C., Ecker, K., Ejtehadi, H., Erschbamer, B., Etayo, J., Etzold, J., Farkas, T., Farzam, M., Fayvush, G., Fernández Calzado, M.R., Finckh, M., Fjellstad, W., Fotiadis, G., García‐Magro, D., García‐Mijangos, I., Gavilán, R.G., Germany, M., Ghafari, S., Giusso del Galdo, G.P., Grytnes, J.‐A., Güler, B., Gutiérrez‐Girón, A., Helm, A., Herrera, M., Hüllbusch, E.M., Ingerpuu, N., Jägerbrand, A.K., Jandt, U., Janišová, M., Jeanneret, P., Jeltsch, F., Jensen, K., Jentsch, A., Kącki, Z., Kakinuma, K., Kapfer, J., Kargar, M., Kelemen, A., Kiehl, K., Kirschner, P., Koyama, A., Langer, N., Lazzaro, L., Lepš, J., Li, C.‐F., Li, F.Y., Liendo, D., Lindborg, R., Löbel, S., Lomba, A., Lososová, Z., Lustyk, P., Luzuriaga, A.L., Ma, W., Maccherini, S., Magnes, M., Malicki, M., Manthey, M., Mardari, C., May, F., Mayrhofer, H., Meier, E.S., Memariani, F., Merunková, K., Michelsen, O., Molero Mesa, J., Moradi, H., Moysiyenko, I., Mugnai, M., Naqinezhad, A., Natcheva, R., Ninot, J.M., Nobis, M., Noroozi, J., Nowak, A., Onipchenko, V., Palpurina, S., Pauli, H., Pedashenko, H., Pedersen, C., Peet, R.K., Pérez‐Haase, A., Peters, J., Pipenbaher, N., Pirini, C., Pladevall‐Izard, E., Plesková, Z., Potenza, G., Rahmanian, S., Rodríguez‐Rojo, M.P., Ronkin, V., Rosati, L., Ruprecht, E., Rusina, S., Sabovljević, M., Sanaei, A., Sánchez, A.M., Santi, F., Savchenko, G., Sebastià, M.T., Shyriaieva, D., Silva, V., Škornik, S., Šmerdová, E., Sonkoly, J., Sperandii, M.G., Staniaszek‐Kik, M., Stevens, C., Stifter, S., Suchrow, S., Swacha, G., Świerszcz, S., Talebi, A., Teleki, B., Tichý, L., Tölgyesi, C., Torca, M., Török, P., Tsarevskaya, N., Tsiripidis, I., Turisová, I., Ushimaru, A., Valkó, O., Van Mechelen, C., Vanneste, T., Vasheniak, I., Vassilev, K., Viciani, D., Villar, L., Virtanen, R., Vitasović‐Kosić, I., Vojtkó, A., Vynokurov, D., Waldén, E., Wang, Y., Weiser, F., Wen, L., Wesche, K., White, H., Widmer, S., Wolfrum, S., Wróbel, A., Yuan, Z., Zelený, D., Zhao, L., Dengler, J., 2021. Benchmarking plant diversity of Palaearctic grasslands and other open habitats. Journal of Vegetation Science. 32: e13050
Boch, S., Becker, T., Deák, B., Dengler, J., Klaus, V. H. 2021. Grasslands of temperate Europe in a changing world – Editorial to the 16th EDGG Special Feature in Tuexenia. – Tuexenia 41: 351–359
2020
Boch, S., Becker, T., Deák, B., Dengler, J., Wagner, V. 2020. Traditional land use, management and biodiversity of European semi-natural grasslands – Editorial to the 15th EDGG Special Feature. Tuexenia 40.
Dierschke, H., Becker, T. 2020. 37 Jahre Dauerflächenuntersuchungen in einem Kalkbuchenwald – eine Zeitreihe 1980–2001–2016. Tuexenia 40.
Filibeck, G., Cancellieri, L., Bartolucci, F., Becker, U., Conti, F., Maestri, S., Murz, M., Schommer, E., Sperandii, M.G., Becker, T. 2020. Festuca valesiaca Schleich. ex Gaudin newly discovered in the Central Apennines (Italy): a further example of steppe relict in the Abruzzo “dry valleys”. Plant Biosystems 154. 593-600.
2019
Deák, B., Becker, T., Boch, S., Dengler, J., Wagner, V. 2019. Restoration, monitoring, conservation and phytosociology of semi-natural and natural grasslands in Central Europe – Editorial to the 14th EDGG Special Feature. Tuexenia 39: 309-313.
Diekmann, M., Andres, C., Becker, T., Bennie, J., Blüml, V., Bullock, J., Culmsee, H., Fanigliulo, M., Hahn, A., Heinken, T., Leuschner, C., Luka, S., Meißner, J., Müller, J., Newton, A., Peppler-Lisbach, C., Rosenthal, G., van den Berg, L.J.L., Vergeer, P., Wesche, K. 2019. Patterns of long-term vegetation change vary between different types of semi-natural grasslands. Patterns of long-term vegetation change vary between different types of semi-natural grasslands in Western and Central Europe. Journal of Vegetation Science 30: 187-202.
Willner, W., Roleček, J., Korolyuk, A., Dengler, J., Chytrý, M., Janišová, M., Lengyel, A., Aćić, S., Becker, T., Ćuk, M., Demina, O., Jandt, U., Kącki, Z., Kuzemko, A., Kropf, M., Lebedeva, M., Semenishchenkov, Y., Šilc, U., Stančić, Z., Staudinger, M., Vassilev, K., Yamalov S. 2019. Formalized classification of the semi-dry grasslands of Central and Eastern Europe. Preslia 91: 25-49.
2018
B., Becker, T., Boch, S., Wagner, V. 2018. Conservation, management and restoration of semi-natural and natural grasslands in Central Europe – Editorial to the 13th EDGG Special Feature. Tuexenia 38: 305-310.
Dengler, J., Pätsch, R., Becker, T., Heinken, T. 2018. News from GrassVeg.DE, the German grassland vegetation database. Palaearctic Grasslands 37: 26-29.
Dengler, J., Wagner, V., Dembicz, I., García-Mijangos, I., Naqinezhad, A., Boch, S., Chiarucci, A., Conradi, T., Filibeck, G., Guarino, R., Janišová, M., Steinbauer, M.J., Aćić, S., Acosta, A.T.R., Akasaka, M., Allers, M., Apostolova, I., Axmanová, I., Bakan, B., Baranova, A., Bardy-Durchhalter, M., Bartha, S., Baumann, E., Becker, T., Becker, U., Belonovskaya, E., Bengtsson, K., Alonso, J.L.B., Berastegi, A., Bergamini, A., Bonini, I., Bruun, H.H., Budzhak, V., Bueno, A., Campos, J.A., Cancellieri, L., Carboni, M., Chocarro, C., Conti, L., Czarniecka-Wiera, M., De Frenne, P., Deák, B., Didukh, Y.P., Diekmann, M., Dolnik, C., Dupré, C., Ecker, K., Ermakov, N., Erschbamer, B., Escudero, A., Etayo, J., Fajmonová, Z., Felde, V.A., Fernández Calzado, M.R., Finckh, M., Fotiadis, G., Fracchiolla, M., Ganeva, A., García-Magro, D., Gavilán, R.G., Germany, M., Giladi, I., Gillet, F., Giusso del Galdo, G.P., González, J.M., Grytnes, J., Hájek, M., Hájková, P., Helm, A., Herrera, M., Hettenbergerová, E., Hobohm, C., Hüllbusch, E.M., Ingerpuu, N., Jandt, U., Jeltsch, F., Jensen, K., Jentsch, A., Jeschke, M., Jiménez-Alfaro, B., Kącki, Z., Kakinuma, K., Kapfer, J., Kavgacı, A., Kelemen, A., Kiehl, K., Koyama, A., Koyanagi, T.F., Kozub, Ł., Kuzemko, A., Kyrkjeeide, M.O., Landi, S., Langer, N., Lastrucci, L., Lazzaro, L., Lelli, C., Lepš, J., Löbel, S., Luzuriaga, A.L., Maccherini, S., Magnes, M., Malicki, M., Marcenò, C., Mardari, C., Mauchamp, L., May, F., Michelsen, O., Mesa, J.M., Molnár, Z., Moysiyenko, I.Y., Nakaga, Y.K., Natcheva, R., Noroozi, J., Pakeman, R.J., Palpurina, S., Pärtel, M., Pätsch, R., Pauli, H., Pedashenko, H., Peet, R.K., Pielech, R., Pipenbaher, N., Pirini, C., Plesková, Z., Polyakova, M.A., Prentice, H.C., Reinecke, J., Reitalu, T., Pilar Rodríguez-Rojo, M., Roleček, J., Ronkin, V., Rosati, L., Rosén, E., Ruprecht, E., Rusina, S., Sabovljević, M., Sánchez, A.M., Savchenko, G., Schuhmacher, O., Škornik, S., Sperandii, M.G., Staniaszek-Kik, M., Stevanović-Dajić, Z., Stock, M., Suchrow, S., Sutcliffe, L.M.E., Swacha, G., Sykes, M., Szabó, A., Talebi, A., Tănase, C., Terzi, M., Tölgyesi, C., Torca, M., Török, P., Tóthmérész, B., Tsarevskaya, N., Tsiripidis, I., Tzonev, R., Ushimaru, A., Valkó, O., van der Maarel, E., Vanneste, T., Vashenyak, I., Vassilev, K., Viciani, D., Villar, L., Virtanen, R., Vitasović Kosić, I., Wang, Y., Weiser, F., Went, J., Wesche, K., White, H., Winkler, M., Zaniewski, P.T., Zhang, H., Ziv, Y., Znamenskiy, S., Biurrun, I. 2018. GrassPlot – a database of multi-scale plant diversity in Palaearctic grasslands. Phytocoenologia 48: 331-347.
Filibeck, G., Cancellieri, L., Sperandii, M.G., Belonovskaya, E., Sobolev, N., Tsarevskaya, N., Becker, T., Berastegi, A., Bückle, C., Che, R., Conti, F., Dembicz, I., Fantinato, E., Frank, D., Frattaroli, A.R., Garcia-Mijangos, I., Guglielmino, A., Janišová, M., Maestri, S., Magnes, M., Rosati, L., Vynokurov, D., Dengler, J., Biurrun, I., 2018. Biodiversity patterns of dry grasslands in the Central Apennines (Italy) along a precipitation gradient: experiences from the 10th EDGG Field Workshop. Bulletin of the Eurasian Dry Grassland Group 36: 25-32.
Vassilev, K., Ruprecht, E., Alexiu, V., Becker, T., Beldean, M., Biță-Nicolae, C., Csergő, A.M., Dzhovanova, I., Filipova, E., Frink, J.P, Gafta, D., Georgieva, M., Germany, M.S., Goia, I., Gumus, M., Hennekens, S.M., Janišová, M., Knollová, I., Koleva, V., Kostadinova, S., Kuzmanović, N., Loos, J., Mardari, C., Michl, T., Neblea, M.A., Nicoară, R.I., Novák, P., Öllerer, K., Onete, M., Palpurina, S., Paulini, I., Pedashenko, H., Pușcaș, M., Roman, A., Šibík, J., Sîrbu, C., Stancu, D., Sutcliffe, L.M.E., Szabó, A., Tomescu, C.-V., Totev, E., Tsvetanov, B., Turtureanu, P.D., Vassileva, P., Velev, N., Dengler, J. 2018. The Romanian Grassland Database (RGD): historical background, current status and future perspectives. Phytocoenologia 48: 91-100. doi: 10.1127/phyto/2018/0229.
2017
Aćić, S., Dengler, J., Biurrun, I., Becker, T., Becker, U., Berastegi, A., Boch, S., Dembicz, I., García‐Mijangos, I., Guarino, R., Janišová, M., Jandt, U., Magnes, M., Marcenò, C., Palpurina, S., Polyakova, M., Vasheniak, Y., Vassilev, K., Velev, N., Stojanović, V., Lazarević, P., Krstivojević Ćuk, M., Dajić Stevanović, Z. 2017. Biodiversity patterns of dry grasslands at the meeting point of Central Europe and the Balkans: Impressions and first results from the 9th EDGG Field Workshop in Serbia. Bulletin of the Eurasian Dry Grassland Group 34: 19-31.
Becker, T., Spanka, J., Schröder, L., Leuschner, C. 2017. Forty years of vegetation change in former coppice-with-standards woodlands as a result of management change and N deposition. Applied Vegetation Science 20: 304-313.
Deák, B., Wagner, V., Csecserits, A., Becker, T. 2017. Vegetation and conservation of grasslands in Central-Europe – Editorial to the 12th EDGG Special Feature. Tuexenia 37: 375-378.
Dengler, J., Becker, T., Conradi, T., Dolnik, C., Heindl-Tenhunen, B., Jensen, K., Kaufmann, J., Klotz, M., Kurzböck, C., Lampe, P., Langer, N., Marquardt, B., Putfarken, D., Rahmlow, M., Schuhmacher, O., Went, J. 2017. GrassVeg.DE – die neue kollaborative Vegetationsdatenbank für alle Offenlandhabitate Deutschlands. Tuexenia 37: 447–455.
Förster, A., Becker, T., Gerlach, A., Meesenburg, H., Leuschner, C. 2017. Long-term change in understorey plant communities of conventionally-managed temperate deciduous forests: effects of nitrogen deposition, soil liming and forest management. Journal of Vegetation Science 28: 747-761.
Kienberg, O., Becker, T. 2017. Differences in population structure require habitat-specific conservation strategies in the threatened steppe grassland plant Astragalus exscapus. Biological Conservation 211: 56-66.
Willner, W., Kuzemko, A., Bauer, N., Becker, T., Bita-Nicolae, C., Botta-Dukát, Z., Čarni, A., Chytrý, M., Csiky, J., Dengler, J., Igić, R., Kącki, Z., Korotchenko, I., Kropf, M., Krstivojević, M., Krstonošić, D., Rédei, T., Ruprecht, E., Schratt-Ehrendorfer, L., Semenishchenkov, Y., Stančić, Z., Vashenyak, Y., Vynokurov, D., Janišová, M. 2017. Broad-scale classification of the Pannonian and western Pontic steppe grasslands of Europe. Applied Vegetation Science 20: 143-158.
2016
Becker, T., Csecserits, A., Deak, B., Janisova, M., Sutcliffe, L., Wagner, V. 2016. Different approaches in grassland analysis – Editorial to the 11th EDGG Grassland Special Feature. Tuexenia 36: 287-291.
Dengler, J., Biurrun, I., Apostolova, I., Baumann, E., Becker, T., Berastegi, A., Boch, S., Cancellieri, L., Dembicz, I., Didukh, Y.P., Dolnik, C., Ermakov, N., Filibeck, G., Garcia-Mijangos, I., del Galdo, G.G., Guarino, R., Janišová, M., Jaunatre, R., Jensen, K., Jeschke, M., Kacki, Z., Kozub, L., Kuzemko, A.A., Löbel, S., Pedashenko, H., Polyakova, M.A., Ruprecht, E., Szabó, A., Vassilev, K., Velev, N., Weiser, F. 2016. Scale-dependent plant diversity in Palaearctic grasslands: a comparative overview. Bulletin of the Eurasian Dry Grassland Group 31: 12-26.
Kuzemko, A., Steinbauer, M.J., Becker, T., Didukh, Y.P., Dolnik, C., Jeschke, M., Naqinezhad, A., Uğurlu, E., Vassilev, K., Dengler, J. 2016. Patterns and drivers of phytodiversity in steppe grasslands of Central Podolia (Ukraine). Biodiversity and Conservation 25: 2233-2250.
Polyakova, M.A., Dembicz, I., Becker, T., Becker, U., Demina, O.N., Ermakov, N., Filibeck, G., Guarino, R., Janišová, M., Jaunatre, R., Kozub, Ł., Steinbauer, M.J., Suzuki, K., Dengler, J. 2016. Scale- and taxon-dependent patterns of plant diversity in steppes of Khakassia, South Siberia (Russia). Biodiversity and Conservation 25: 2251-2273.
Sutcliffe, L.M.E., Germany, M., Becker, U., Becker, T. 2016. How does size and isolation affect patches of steppe-like vegetation on slumping hills in Transylvania, Romania? Biodiversity and Conservation 25: 2275–2288.
Willner, W., Kuzemko, A., Dengler, J., Chytrý, M., Bauer, N., Becker, T., Bitßăa-Nicolae, C., Botta-Dukát, Z., Čarni, A., Csiky, C., Igić, R., Kazcki, Z., Korotchenko, I., Kropf, M., Krstivojević-Ćuk, M., Krstonošić, D., Rédei, T., Ruprecht, E., Schratt-Ehrendorfer,L., Semenishchenkov, Y., Stančić, Z., Vashenyak, Y., Vynokurov, D., Janišová, M. 2016. A higher-level classification of the Pannonian and western Pontic steppe grasslands (Central and Eastern Europe). Applied Vegetation Science.
2015
Meyer, S., Bergmeier, E., Becker, T., Wesche, K., Krause, B., Leuschner, C. 2015. Detecting long-term losses at the plant community level – arable fields in Germany revisited. Applied Vegetation Science 18: 432-442.
Ruprecht, E., Janisova, M., Sutcliffe, L., Boch, S., Becker, T. 2015. Dry grasslands of Central-Eastern and South-Eastern Europe shaped by environmental heterogeneity and human land use – Editorial to the 10th Dry Grassland Special Feature. Tuexenia 35: 321-328.
Sutcliffe, L.M.E., Batary, P., Becker, T., Orci, K.M., Leuschner, C. 2015. Both local and landscape factors determine plant and Orthoptera diversity in the semi-natural grasslands of Transylvania, Romania. Biodiversity and Conservation 24: 229-245.
2014
Chytrý, M., Hennekens, S.M., Jiménez-Alfaro, B., Knollová, I., Dengler, J., Schaminée, J.H.J., Acic, S., Agrillo, E., Ambarli, D., Angelini, P., Apostolova, I., Becker, T., Berg, C., Bergmeier, E., Bita-Nicolae, C., Biurrun, I., Casella, L., Csiky, J., Danihelka, J., De Bie, E., Ewald, J., Fernández-González, F., Fitzpatrick, Ú., Font, X., García-Mijangos, I., Golub, V., Guarino, R., Isik, D., Jandt, U., Jansen, F., Janssen, J.A.M., Kacki, Z., Kleikamp, M., Krstonošic, D., Kuzemko, A.A., Landucci, F., Lenoir, J., Lysenko, T., Marceno, C., Martynenko, V., Michalcová, D., Reznickova, M., Rodwell, J.S., Ruprecht, E., Rusina, S., Seidler, G., Šibik, J., Šilc, U., Škvorc, Ž., Sopotlieva, D., Sorokin, A., Spada, F., Stancic, Z., Svenning, J.C., Swacha, G., Tsiripidis, I., Turtureanu, P.D., Ugurlu, E., Valachovic, M., Vassilev, K., Venanzoni, R., Weekes, L., Willner, W., Wohlgemuth, T. 2014. European Vegetation Archive (EVA): a new integrated source of European vegetation-plot data. In: Mucina, L., Price, J.N., Kalwij, J.M. (eds.) Biodiversity and vegetation: patterns, processes, conservation, pp. 81-82. Kwongan Foundation, Perth.
Janišová, M., Boch, S., Ruprecht, E., Reitalu, T., Becker, T. 2014. Continental dry grasslands from range margin to range centre – Editorial to the 9th Dry Grassland Special Feature. Tuexenia 34: 347-353.
Kienberg, O., Thill, L., Baumbach, H., Becker, T. 2014. A method for selecting plant species for reintroduction purposes: A case-study on the steppe grassland plants in Thuringia (Germany). Tuexenia 34: 467-488.
Kuzemko, A.A., Becker, T., Didukh, Y.P., Ardelean, I.V., Becker, U., Beldean, M., Dolnik, C., Jeschke, M., Naqinezhad, A., Uğurlu, E., Ünal, A., Vassilev, K., Vorona, E.I., Yavorska, O.H., Dengler, J. 2014. Dry grassland vegetation of Central Podolia (Ukraine) – a preliminary overview of its syntaxonomy, ecology and biodiversity. Tuexenia 34: 391-430.
Steffen, K., Becker, T., Leuschner, C. 2014. Diversitätsverluste und floristischer Wandel in der Fließgewässervegetation seit 1950. Natur und Landschaft 89: 405-409.
Steffen, K., Leuschner, C., Muller, U., Wiegleb, G., Becker, T. 2014. Relationships between macrophyte vegetation and physical and chemical conditions in northwest German running waters. Aquatic Botany 113: 46-55.
Turtureanu, P.D., Palpurina, S., Becker, T., Dolnik, C., Ruprecht, E., Sutcliffe, L.M.E., Szabó, A., Dengler, J. 2014. Scale- and taxon-dependent biodiversity patterns of dry grassland vegetation in Transylvania (Romania). Agriculture Ecosystems & Environment 182: 15-24.
Willner, W., Kuzemko, A.A., Bauer, N., Becker, T., Bita-Nicolae, C., Botta-Dukat, Z., Chytrý, M., Dengler, J., Igic, R., Janišova, M., Kacki, Z., Korotchenko, I., Redei, T., Ruprecht, E., Schratt-Ehrendorfer, L., Semenishchenkov, Y., Stancic, Z., Vashenyak, Y., Vynokurov, D. 2014. Towards a revised classification of the Pontic-Pannonic steppe grasslands. In: Mucina, L., Price, J.N., Kalwij, J.M. (eds.) Biodiversity and vegetation: patterns, processes, conservation, pp. 206-206. Kwongan Foundation, Perth.
2013
Becker, T. 2013. Die Steppenreliktart Astragalus exscapus – eine Schlüsselart der Steppenreste Mitteleuropas? In: Baumbach, H., Pfützenreuter, S. (Red.) Steppenlebensräume Europas – Gefährdung, Erhaltungsmaßnahmen und Schutz, pp. 69-90. Thüringer Ministerium für Landwirtschaft, Forsten, Umwelt und Naturschutz (TMLFUN) (Hrsg.), Erfurt.
Becker, T., Reitalu, T., Ruprecht, E., Dengler, J. 2013. Dry grassland of Europe: biodiversity, classification, conservation and management – Editorial to the 8th Dry Grassland Special Feature. Tuexenia 33: 285-291.
Hahn, A., Andres, C., Becker, T. 2013. Veränderungen der Steppenrasen des NSG „Badraer Lehde-Großer Eller“ im Kyffhäusergebirge (Thüringen) zwischen 1993 und 2012. In: Baumbach, H., Pfützenreuter, S. (Red.) Steppenlebensräume Europas – Gefährdung, Erhaltungsmaßnahmen und Schutz, pp. 101-115. Thüringer Ministerium für Landwirtschaft, Forsten, Umwelt und Naturschutz (TMLFUN) (Hrsg.), Erfurt.
Jandt, U., Becker, T., Dengler, J. 2013. Dry grasslands of Germany – call to support an initiative for a consistent, plot-based classification. In: Baumbach, H., Pfützenreuter, S. (Red.) Steppenlebensräume Europas – Gefährdung, Erhaltungsmaßnahmen und Schutz, pp. 435-440. Thüringer Ministerium für Landwirtschaft, Forsten, Umwelt und Naturschutz (TMLFUN) (Hrsg.), Erfurt.
Janišová, M., Becker, T., Becker, U., Demina, O.N., Dembicz, I., Ermakov, N., Filibeck, G., Frank, D., Guarino, R., Jaunatre, R., Kozub, Ł., Polyakova, M.A., Suzuki, K., Dengler, J. 2013. Steppes of Southern Siberia – Experiences from the 6th EDGG Research Expedition to Khakassia, Russia (22 July - 1 August 2013). Bulletin of the European Dry Grassland Group 19/20: 31-48.
Kienberg, O., Thill, L., Becker, T. 2013. Wiederansiedlung von Astragalus exscapus, Scorzonera purpurea und Pulsatilla pratensis subsp. nigricans in Steppenrasen in Thüringen – erste Ergebnisse eines laufenden Projektes. In: Baumbach, H., Pfützenreuter, S. (Red.) Steppenlebensräume Europas – Gefährdung, Erhaltungsmaßnahmen und Schutz, pp. 373-383. Thüringer Ministerium für Landwirtschaft, Forsten, Umwelt und Naturschutz (TMLFUN) (Hrsg.), Erfurt.
Leuschner, C., Wesche, K., Meyer, S., Krause, B., Steffen, K., Becker, T., Culmsee, H. 2013. Veränderungen und Verarmung in der Offenlandvegetation Norddeutschlands seit den 1950er Jahren: Wiederholungsaufnahmen in Äckern, Grünland und Fließgewässern. Berichte der Reinhold-Tüxen-Gesellschaft 25: 166-182.
Steffen, K., Becker, T., Herr, W., Leuschner, C. 2013. Diversity loss in the macrophyte vegetation of northwest German streams and rivers between the 1950s and 2010. Hydrobiologia 713: 1-17.
Steffen, K., Becker, T., Leuschner, C. 2013. Rückgang der Phytodiversität in nordwest-deutschen Bächen und Flüssen seit den 1950er Jahren und mögliche Maßnahmen zur Fließgewässerrenaturierung. BfN-Skripten 335: 47-52.
2012
Becker, T. 2012. Short database report: Dry grassland Central Germany database. In: Dengler, J., Oldeland, J., Jansen, F., Chytrý, M., Ewald, J., Finckh, M., Glöckler, F., Lopez-Gonzales, G., Peet, R.K., Schaminée, J.H.J. (eds.) Vegetation databases for the 21st century. Biodiversity and Ecology 4: 347.
Becker, T. 2012. Short database report: VIOLETEA – heavy metal grasslands. In: Dengler, J., Oldeland, J., Jansen, F., Chytrý, M., Ewald, J., Finckh, M., Glöckler, F., Lopez-Gonzales, G., Peet, R.K., Schaminée, J.H.J. (eds.) Vegetation databases for the 21st century. Biodiversity and Ecology 4: 325.
Becker, T., Becker, U. 2012. Umsiedlung einer Population des Hirschzungenfarns (Asplenium scolopendrium L.) aus einem Steinbruch in eine Doline des südharzer Gipskarstes. Mitteilungen der Arbeitsgemeinschaft für Karstkunde Harz 4: 20-31.
Becker, T., Schmiege, C., Bergmeier, E., Dengler, J., Nowak, B. 2012. Nutrient-poor grasslands on siliceous soil in the lower Aar valley (Middle Hesse, Germany) – neglected vegetation types in the intersection range of four classes. Tuexenia 32: 281-318.
Dengler, J., Becker, T., Ruprecht, E., Szabó, A., Becker, U., Beldean, M., Bita-Nicolae, C., Dolnik, C., Goia, I., Peyrat, J., Sutcliffe, L.M.E., Turtureanu, P.D., Uğurlu, E. 2012. Festuco-Brometea communities of the Transylvanian Plateau (Romania) – a preliminary overview on syntaxonomy, ecology, and biodiversity. Tuexenia 32: 319-359.
Dengler, J., Todorova, S., Becker, T., Boch, S., Chytrý, M., Diekmann, M., Dolnik, C., Dupré, C., Giusso del Galdo, G.P., Guarino, R., Jeschke, M., Kiehl, K., Kuzemko, A., Löbel, S., Otýpková, Z., Pedashenko, H., Peet, R.K., Ruprecht, E., Szabó, A., Tsiripidis, I., Vassilev, K. 2012. Short database report: Database species-area relationships in Palaearctic grasslands. In: Dengler, J., Oldeland, J., Jansen, F., Chytrý, M., Ewald, J., Finckh, M., Glöckler, F., Lopez-Gonzales, G., Peet, R.K., Schaminée, J.H.J. (eds.) Vegetation databases for the 21st century. Biodiversity and Ecology 4: 321-322.
Galvánek, D., Becker, T., Dengler, J. 2012. Biodiversity, syntaxonomy, and management – Editorial to the 7th Dry Grassland Special Feature, and the bibliometrical consideration of the series in the Web of Science. Tuexenia 32: 233-243.
Guarino, R., Becker, T., Dembicz, I., Dolnik, C., Kacki, Z., Kozub, Ł., Rejžek, M., Dengler, J. 2012. Impressions from the 4th EDGG Research Expedition to Sicily: community composition and diversity of Mediterranean grasslands. Bulletin of the European Dry Grassland Group 15: 12-22.
2011
Becker, T., Andres, C., Dierschke, H. 2011. Junge und alte Steppenrasen im NSG „Badraer Lehde-Großer Eller“ im Kyffhäusergebirge. Tuexenia 31: 173–210.
Becker, T., Becker, U. 2011. Umsiedlung einer Population des Hirschzungenfarns (Aspleniumscolopendrium L.) aus einem Gipssteinbruch in eine Doline des südharzer Gipskarstes. Mitteilungen des Verbandes der deutschen Höhlen- und Karstforscher e.V. 57: 12-17.
Becker, T., Voss, N., Durka, W. 2011. Pollen limitation and inbreeding depression in an “old rare” bumblebee-pollinated grassland herb. Plant Biology 13: 857-864.
Knolle, F., Ernst, W.H.O., Dierschke, H., Becker, T., Kison, H.-U., Kratz, S., Schnug, E. 2011. Schwermetallvegetation, Bergbau und Hüttenwesen im westlichen Geopark Harz – eine ökotoxikologische Exkursion. Braunschweiger Naturkundliche Schriften 10: 1-44.
Schleuning, M., Becker, T., Vadillo, G.P., Hahn, T., Matthies, D., Durka, W. 2011. River dynamics shape clonal diversity and genetic differentiation in populations of an Amazonian understory herb. Journal of Ecology 99: 373-382
Schleuning, M., Templin, M., Huamán, V., Vadillo, P.G., Becker, T., Durka, W., Fischer, M., Matthies, D. 2011. Effects of inbreeding, outbreeding, and supplemental pollen on the reproduction of a hummingbird-pollinated clonal Amazonian herb. Biotropica 43: 183-191.
2010
Becker, T. 2010. Explaining rarity of the dry grassland perennial Astragalus exscapus. Folia Geobotanica 45: 303-321.
Becker, T., Becker, U. 2010. Successful transplantation of a hart’s tongue fern population (Asplenium scolopendrium L.) with ten years of monitoring. Tuexenia 30: 47-58.
Becker, U., Becker, T. 2010. Einfluss der Umwelt und Landnutzung auf artenreiche Wiesen und Weiden im nordwestdeutschen Mittelgebirgsraum. Tuexenia 30: 169-208.
Jandt, U., Becker, T., Dengler, J., Janišová, M. 2010. Dry grasslands: species interactions and distribution – Editorial to the Special Feature with contributions from the 6th European Dry Grassland Meeting 2009 in Halle (Saale). Tuexenia 31: 349-355.
2009
Waesch, G., Becker, T. 2009. Plant diversity differs between young and old mesic meadows in a central European low mountain region. Agriculture, Ecosystems and Environment 129: 457-464.
2008
Becker, T., Dierschke, H. 2008. Vegetation response to high concentrations of heavy metals in the Harz Mountains, Germany. Phytocoenologia 38: 255-265.
Dierschke, H., Becker, T. 2008. Die Schwermetall-Vegetation des Harzes – Gliederung, ökologische Bedingungen und syntaxonomische Einordnung. Tuexenia 28: 185-227.
Hahn, T., Durka, W., Becker, T. 2008. Populationsgenetische Hinweise auf eine rezente Arealexpansion des mitteleuropäischen Endemiten Linumleonii. Naturschutz und Biologische Vielfalt 60: 87-92.
2007
Becker, T., Brändel, M. 2007. Vegetation-environment relationships in a heavy metal-dry grassland-complex. Folia Geobotanica 42: 11-28.
Becker, T., Brändel, M., Dierschke, H. 2007. Trockenrasen auf schwermetall- und nicht-schwermetallhaltigen Böden der Bottendorfer Hügel in Thüringen. Tuexenia 27: 255-286.
2006
Bültmann, H., Hasse, T., Dörsing, M., Jandt, U., Becker, T., Dengler, J. 2006. Trockenrasen auf verschiedenen Betrachtungsebenen – Zweite Jahrestagung der AG Trockenrasen vom 26.-28.08.05 in Münster. Tuexenia 26: 389-390.
2005
Becker, T. 2005. Die Sumpf-Weichwurz Hammarbya paludosa (L.) O. Kuntze auf der nordfriesischen Insel Amrum. Kieler Notizen zur Pflanzenkunde in Schleswig-Holstein und Hamburg 33: 98-100.
Becker, T. 2005. Luzula divulgata Kirschner (Schlanke Hainsimse) – Verbreitung, Vergesellschaftung und Standort einer Art xerothermer Eichenwälder in Mitteldeutschland. Tuexenia 25: 63-82.
Becker, T., Dierschke, H. 2005. Primärsukzession im Gletschervorfeld des Obersulzbachkees (Hohe Tauern, Österreich), eine Zeitreihe über fast 150 Jahre. Tuexenia 25: 111-139.
Becker, T., Dietz, H., Billeter, R., Buschmann, H., Edwards, P.J. 2005. Altitudinal distribution of alien plant species in the Swiss Alps. Perspectives in Plant Ecology, Evolution and Systematics 7: 173-183.
Becker, T., Golte-Bechtle, M. 2005. Das kleine Was blüht denn da? Kosmos, Stuttgart. 191 S. ISBN 3-440-10149-5.
Becker, T., Golte-Bechtle, M. 2005. Veldgids bloeiende planten. Tirion, Baarn. 191 S. ISBN 90-5210-601-0.
2004
Buschmann, H., Becker, T. 2004. Höhenverbreitung von Heuschrecken (Orthoptera) in den Schweizer Alpen. Articulata 19: 19-42.
2003
Becker, T. 2003. Auswirkungen langzeitiger Fragmentierung auf Populationen am Beispiel der reliktischen Steppenrasenart Astragalus exscapus L. (Fabaceae). Dissertationes Botanicae 380.
Becker, T., Voß, N. 2003. Einnischung der seltenen Steppenrasenart Astragalusexscapus L. (Stengelloser Tragant) im Kyffhäusergebirge (Thüringen, Deutschland). Feddes Repertorium 114: 142-165.
2002
Rennwald, E., Bartram, T., Berg, C., Bergmeier, E., Bettinger, A., Blümel, A., Bohn, U., Böhnert, W., Brandes, D., Breunig, M., Burkart, T., Bushart, M., Dengler, J., Dierschke, H., Dierßen, K., Dinter, W., Dörr, E., Drachenfels, O. von, Ewald, J., Fartmann, T., Fischer, A., Flintrop, T., Gollub, G., Großer, K.-H., Gunnemann, H., Härdtle, W., Heinken, T., Hilbig, W., Himmler, H., Hinterlang, D., Hofmeister, H.E., Hölzel, N., Hüppe, J., Illig, H., Isermann, M., Jandt, U., Jansen, F., Klotz, S., Korneck, D., Koska, I., Manthey, M., Mast, R., Mayer, A., Müller, T., Nezadal, W., Nowak, B., Oberdorfer, E., Oesau, A., Pallas, J., Passarge, H., Pätzold, F., Peppler-Lisbach, C., Petermann, J., Petersen, J., Peterson, J., Philippi, G., Pietsch, W., Polte, T., Preiß, H., Quinger, B., Raab, B., Raabe, U., Rademacher, M., Reif, A., Remy, D., Scheuerer, M., Schmidt, M., Schmidt, P.A., Schneider, S., Schöller, H., Schubert, R., Schuhwerk, F., Suck, R., Täuber, T., ..., Zahlheimer, W.A. 2002. Rote Liste der Pflanzengesellschaften Deutschlands mit Anmerkungen zur Gefährdung. Schriftenreihe für Vegetationskunde 35: 393-592.
2000
Becker, T. 2000. Die Bedeutung des unteren Unstruttales für den Schutz der Xerothermrasenflora in Deutschland. Hercynia N.F. 33: 99-115.
1999
Becker, T. 1999. Die Xerothermrasen-Gesellschaften des unteren Unstruttales und einige ökologische Gründe für ihre Verteilung im Raum. Mitteilungen zur floristischen Kartierung Sachsen-Anhalt 4: 3-29.
1998
Becker, T. 1998. Zur Rolle von Mikroklima- und Bodenparametern bei Vegetationsabfolgen in Trockenrasen des unteren Unstruttals (Sachsen-Anhalt). Gleditschia 26: 29-57.
Becker, T. 1998. Die Pflanzengesellschaften der Felsfluren und Magerrasen im unteren Unstruttal (Sachsen-Anhalt). Tuexenia 18: 153-206.
Reviewer for Scientific Journals
Agriculture, Ecosystems and Environment, Applied Vegetation Science, Basic and Applied Ecology, Biological Conservation, Biological Journal of the Linnean Society, Botanica Helvetica, Diversity and Distributions, Environmental Pollution, Folia Geobotanica, Journal of Vegetation Science, Landscape Ecology, Natur und Landschaft, Oecologia, Phytocoenologia, Plant Systematics and Evolution, Restoration Ecology, Tuexenia
Membership in Scientific Associations
AG Geobotanik in Schleswig-Holstein und Hamburg
Botanischer Verein Sachsen-Anhalt
Botanische Vereinigung für Naturschutz in Hessen (BVNH)
Eurasian Dry Grassland Group (EDGG)
Floristisch-soziologische Arbeitsgemeinschaft (FlorSoz)
Gesellschaft für Naturschutz und Ornithologie Rheinland-Pfalz (GNOR)
Gesellschaft für Ökologie (GfÖ)
International Association of Vegetation Science (IAVS)
Reinhold-Tüxen-Gesellschaft (RTG)
Rheinische Naturforschende Gesellschaft (RNG)
Data Bases
VIOLETEA – Heavy Metal Grasslands (ca. 650 relevés of heavy metal grasslands in Germany)
Dry Grassland Central Germany Database (ca. 3000 relevés of dry grasslands in central Germany)
forestREplot – Forest herb layer resurvey plots (contribution of repeated relevés of coppice-with-standards forests in Lower-Saxony)
GrassVeg.DE – Dry grasslands of Germany
Teaching
Summer term
Morphology and taxonomy of vascular plants – lecture (Fr 8-10 h)
Assessment of plant communities and their habitats in the field – field course (Di 14-18 h)
Ecological assessment of habitats – field course (Fr 13-18 h)
Colloquium Geobotany (Mi 9-10 h)
Winter term
Ecological plant anatomy – lecture (Fr 8-10 h)
Plant anatomy – microscopy course (Mi 13-16 h and 16-19 h)
Colloquium Geobotany (Mi 9-10 h)