Uni-Bayreuth grafik-uni-bayreuth




Peer reviewed


Schulze, E., Weber, U., Gebauer, G.: Botanischer Artenschutz : Die Bedeutung des Waldes zum Erhalt der Artenvielfalt der Gefäßpflanzen in Deutschland. Naturschutz und Landschaftsplanung, 56(3), 34-38 (2024).

Merckx, V., Gomes, S., Wang, D., Verbeek, C., Jacquemyn, H., Zahn, F., Gebauer, G., Bidartondo, M.: Mycoheterotrophy in the wood-wide web. Nature Plants, 10, 710-718 (2024).

Schulze, E., Weber, U., Gebauer, G.: Der Wald kann den Artenrückgang nicht aufhalten. Holz-Zentralblatt, 150(13), 234 (2024).


Wall, C., Swift, S., D'Antonio, C., Gebauer, G., Hynson, N.: Isoscapes of remnant and restored Hawaiian montane forests reveal differences in biological nitrogen fixation and carbon inputs. PeerJ, 11, e15468 (2023).

Zahn, F., Söll, E., Chapin, T., Wang, D., Gomes, S., Hynson, N., Pausch, J., Gebauer, G.: Novel insights into orchid mycorrhiza functioning from stable isotope signatures of fungal pelotons. New Phytologist, 239(4), 1449-1463 (2023).

Amundson, R., Mills, J., Lammers, L., Barthel, M., Gallarotti, N., Six, J., Gebauer, G., Maurer, G.: Simultaneous production and consumption of soil N₂O creates complex effects on its stable isotope composition. Global Biogeochemical Cycles, 37(9), e2022GB007536 (2023).

Gomes, S., Giesemann, P., Klink, S., Hunt, C., Suetsugu, K., Gebauer, G.: Stable isotope natural abundances of fungal hyphae extracted from the roots of arbuscular mycorrhizal mycoheterotrophs and rhizoctonia-associated orchids. New Phytologist, 239(4), 1166-1172 (2023).

Wang, D., Gebauer, G., Jacquemyn, H., Zahn, F., Gomes, S., Lorenz, J., van der Hagen, H., Schilthuizen, M., Merckx, V.: Variation in mycorrhizal communities and the level of mycoheterotrophy in grassland and forest populations of Neottia ovata (Orchidaceae). Functional Ecology, 37(7), 1948-1961 (2023).


Zahn, F., Lee, Y., Gebauer, G.: Fungal association and root morphology shift stepwise during ontogenesis of orchid Cremastra appendiculata towards autotrophic nutrition. AoB PLANTS, 14(3), plac021 (2022).

Steibl, S., Gebauer, G., Laforsch, C.: Impacts on food web properties of island invertebrate communities vary between different human land uses. Science of the Total Environment, 831, 154838 (2022).

Klotz, M., Schaller, J., Feldhaar, H., Dengler, J., Gebauer, G., Aas, G., Weissflog, A., Engelbrecht, B.: Plasticity of plant silicon and nitrogen concentrations in response to water regimes varies across temperate grassland species. Functional Ecology, 36, 3211-3222 (2022).

Cross, A., van der Ent, A., Wickmann, M., Skates, L., Sumail, S., Gebauer, G., Robinson, A.: Capture of mammal excreta by Nepenthes is an effective heterotrophic nutrition strategy. Annals of Botany, 130(7), 927-938 (2022).

Giesemann, P., Gebauer, G.: Distinguishing carbon gains from photosynthesis and heterotrophy in C₃-hemiparasite-C₃-host-pairs. Annals of Botany, 129(6), 647-656 (2022).


Henry, H., Kreyling, J., Gebauer, G., Klisz, M., Weigel, R.: 15 N tracer enrichment in response to winter soil temperature manipulation differs between canopy trees and juveniles. Trees, 35(1), 325-331 (2021).

Steibl, S., Sigl, R., Blaha, S., Drescher, S., Gebauer, G., Gürkal, E., Hüftlein, F., Satzger, A., Schwarzer, M., Seidenath, D., Welfenbach, J., Zinser, R., Laforsch, C.: Allochthonous resources are less important for faunal communities on highly productive, small tropical islands. Ecology and Evolution, 11(19), 13128-13138 (2021).

Sprenger, P., Müsse, C., Hartke, J., Feldmeyer, B., Schmitt, T., Gebauer, G., Menzel, F.: Dinner with the roommates : trophic niche differentiation and competition in a mutualistic ant-ant association. Ecological Entomology, 46(3), 562-572 (2021).

Weigel, R., Henry, H., Beil, I., Gebauer, G., Jurasinski, G., Klisz, M., van der Maaten, E., Muffler, L., Kreyling, J.: Ecosystem processes show uniform sensitivity to winter soil temperature change across a gradient from central to cold marginal stands of a major temperate forest tree. Ecosystems, 24, 1545-1560 (2021).

Bindereif, S., Rüll, F., Kolb, P., Köberle, L., Willms, H., Steidele, S., Schwarzinger, S., Gebauer, G.: Impact of Global Climate Change on the European Barley Market Requires Novel Multi-Method Approaches to Preserve Crop Quality and Authenticity. Foods, 10(7), 1592 (2021).

Giesemann, P., Rasmussen, H., Gebauer, G.: Partial mycoheterotrophy is common among chlorophyllous plants with Paris-type arbuscular mycorrhiza. Annals of Botany, 127(5), 645-653 (2021).

Gebauer, G., Clemens, S.: Stealing sugar from the honey fungus. Plant, Cell & Environment, 44(1), 17-19 (2021).


Giesemann, P., Eichenberg, D., Stöckel, M., Seifert, L., Gomes, S., Merckx, V., Gebauer, G.: Dark septate endophytes and arbuscular mycorrhizal fungi (Paris‐morphotype) affect the stable isotope composition of 'classically' non-mycorrhizal plants. Functional Ecology, 34(12), 2453-2466 (2020).

Giesemann, P., Rasmussen, H., Liebel, H., Gebauer, G.: Discreet heterotrophs : Green plants that receive fungal carbon through Paris-type arbuscular mycorrhiza. New Phytologist, 226(4), 960-966 (2020).

Fernandes Gomes, S., Merckx, V., Kehl, J., Gebauer, G.: Mycoheterotrophic plants living on arbuscular mycorrhizal fungi are generally enriched in ¹³C, ¹⁵N, and ²H isotopes. Journal of Ecology, 108(4), 1250-1261 (2020).


Bindereif, S., Brauer, F., Schubert, J., Schwarzinger, S., Gebauer, G.: Complementary use of ¹H NMR and multi-element IRMS in association with chemometrics enables effective origin analysis of cocoa beans (Theobroma cacao L.). Food Chemistry, 299, 125105 (2019).

Skates, L., Paniw, M., Cross, A., Ojeda, F., Dixon, K., Stevens, J., Gebauer, G.: An ecological perspective on “plant carnivory beyond bogs” : nutritional benefits of prey capture for the Mediterranean carnivorous plant Drosophyllum lusitanicum. Annals of Botany, 124(1), 65-76 (2019).

Parra Suárez, S., Gebauer, G.: The fate of monsoonal atmospheric nitrate deposition in two forest catchments in Soyang lake watershed, South Korea : a mass balance and stable isotope approach. Biogeochemistry, 142(1), 95-116 (2019).

Schweiger, J., Kemnade, C., Bidartondo, M., Gebauer, G.: Light limitation and partial mycoheterotrophy in rhizoctonia-associated orchids. Oecologia, 189(2), 375-383 (2019).

Hoysted, G., Jacob, A., Kowal, J., Giesemann, P., Bidartondo, M., Duckett, J., Gebauer, G., Rimington, W., Schornack, S., Pressel, S., Field, K.: Mucoromycotina fine root endophyte fungi form nutritional mutualisms with vascular plants. Plant Physiology, 181(2), 565-577 (2019).

Parra Suárez, S., Peiffer, S., Gebauer, G.: Origin and fate of nitrate runoff in an agricultural catchment: Haean, South Korea : Comparison of two extremely different monsoon seasons. Science of the Total Environment, 648, 66-79 (2019).

Klink, S., Giesemann, P., Gebauer, G.: Picky carnivorous plants? Investigating preferences for preys' trophic levels : a stable isotope natural abundance approach with two terrestrial and two aquatic Lentibulariaceae tested in Central Europe. Annals of Botany, 123(7), 1167-1177 (2019).


Ogura-Tsujita, Y., Gebauer, G., Xu, H., Fukasawa, Y., Umata, H., Tetsuka, K., Kubota, M., Schweiger, J., Yamashita, S., Maekawa, N., Maki, M., Isshiki, S., Yukawa, T.: The giant mycoheterotrophic orchid Erythrorchis altissima is associated mainly with a divergent set of wood-decaying fungi. Molecular Ecology, 27(5), 1324-1337 (2018).

Fay, M., Feustel, M., Newlands, C., Gebauer, G.: Inferring the mycorrhizal status of introduced plants of Cypripedium calceolus (Orchidaceae) in northern England using stable isotope analysis. Botanical Journal of the Linnean Society, 186(4), 587-590 (2018).

Novak, M., Parra Suárez, S., Gebauer, G., Thoma, M., Buzek, F., Cejkova, B., Jackova, I., Stepanova, M., Prechova, E., Curik, J., Veselovsky, F., Valkova, I., Blaha, V., Fottova, D., Komarek, A.: Relationship between nitrogen isotope ratios of NO₃⁻ and N₂O in vertical porewater profiles through a polluted rain-fed peat bog. Soil Biology & Biochemistry, 123, 7-9 (2018).

Schweiger, J., Bidartondo, M., Gebauer, G.: Stable isotope signatures of underground seedlings reveal the organic matter gained by adult orchids from mycorrhizal fungi. Functional Ecology, 32(4), 870-881 (2018).

Rosumek, F., Blüthgen, N., Brückner, A., Menzel, F., Gebauer, G., Heethoff, M.: Unveiling community patterns and trophic niches of tropical and temperate ants using an integrative framework of field data, stable isotopes and fatty acids. PeerJ, 6, e5467 (2018).


Schiebold, J., Bidartondo, M., Lenhard, F., Makiola, A., Gebauer, G.: Exploiting mycorrhizas in broad daylight : Partial mycoheterotrophy is a common nutritional strategy in meadow orchids. Journal of Ecology, 106(1), 168-178 (2017).

Berger, S., Gebauer, G., Blodau, C., Knorr, K.: Peatlands in a eutrophic world : Assessing the state of a poor fen-bog transition in southern Ontario, Canada, after long term nutrient input and altered hydrological conditions. Soil Biology & Biochemistry, 114, 131-144 (2017).

Schiebold, J., Bidartondo, M., Karasch, P., Gravendeel, B., Gebauer, G.: You are what you get from your fungi : nitrogen stable isotope patterns in Epipactis species. Annals of Botany, 119(7), 1085-1095 (2017).


Palmer, K., Köpp, J., Gebauer, G., Horn, M.: Drying-rewetting and flooding impact denitrifier activity rather than community structure in a moderately acidic fen. Frontiers in Microbiology, 7, 727 (2016).

Gebauer, G., Preiß, K., Gebauer, A.: Partial mycoheterotrophy is more widespread among orchids than previously assumed. New Phytologist, 211(1), 11-15 (2016).

Hynson, N., Schiebold, J., Gebauer, G.: Plant family identity distinguishes patterns of carbon and nitrogen stable isotope abundance and nitrogen concentration in mycoheterotrophic plants associated with ectomycorrhizal fungi. Annals of Botany, 118(3), 467-479 (2016).


Liebel, H., Bidartondo, M., Gebauer, G.: Are carbon and nitrogen exchange between fungi and the orchid Goodyera repens affected by irradiance?. Annals of Botany, 115, 251-261 (2015).

Novak, M., Gebauer, G., Thoma, M., Curik, J., Stepanova, M., Jackova, I., Buzek, F., Barta, J., Santruckova, H., Fottova, D., Kubena, A.: Denitrification at two nitrogen-polluted, ombrotrophic Sphagnum bogs in Central Europe: Insights from porewater N₂O-isotope profiles. Soil Biology & Biochemistry, 81, 48-57 (2015).

Lee, Y., Yang, C., Gebauer, G.: The importance of associations with saprotrophic non-Rhizoctonia fungi among fully mycoheterotrophic orchids is currently under-estimated : novel evidence from sub-tropical Asia. Annals of Botany, 116(3), 423-435 (2015).

Ercole, E., Adamo, M., Rodda, M., Gebauer, G., Girlanda, M., Perotto, S.: Temporal variation in mycorrhizal diversity and carbon and nitrogen stable isotope abundance in the wintergreen meadow orchid Anacamptis morio. New Phytologist, 205(3), 1308-1319 (2015).


Seo, J., Jang, I., Gebauer, G., Kang, H.: Abundance of Methanogens, Methanotrophic Bacteria, and Denitrifiers in Rice Paddy Soils. Wetlands, 34(2), 213-223 (2014).

Stöckel, M., Těšitelová, T., Jersáková, J., Bidartondo, M., Gebauer, G.: Carbon and nitrogen gain during the growth of orchid seedlings in nature. New Phytologist, 202(2), 606-615 (2014).


Hynson, N., Weiß, M., Preiß, K., Gebauer, G., Treseder, K.: Fungal host specificity is not a bottleneck for the germination of Pyroleae species (Ericaceae) in a Bavarian forest. Molecular Ecology, 22(5), 1473-1481 (2013).

Berger, S., Jung, E., Köpp, J., Kang, H., Gebauer, G.: Monsoon rains, drought periods and soil texture as drivers of soil N2O fluxes - soil drought turns East Asian temperate deciduous forest soils into temporary and unexpectedly persistent N2O sinks. Soil Biology & Biochemistry, 57, 273-281 (2013).

Berger, S., Kim, Y., Kettering, J., Gebauer, G.: Plastic mulching in agriculture - friend or foe of N₂O emissions?. Agriculture, Ecosystems & Environment, 167, 43-51 (2013).

Berger, S., Jang, I., Seo, J., Kang, H., Gebauer, G.: A record of N2O and CH4 emissions and underlying soil processes of Korean rice paddies as affected by different water management practices. Biogeochemistry, 115, 317-332 (2013).


Sommer, J., Pausch, J., Brundrett, M., Dixon, K., Bidartondo, M., Gebauer, G.: Limited carbon and mineral nutrient gain from mycorrhizal fungi by adult Australian orchids. American Journal of Botany, 99(7), 1133-1145 (2012).

Jung, B., Lee, H., Jeong, J., Owen, J., Kim, B., Meusburger, K., Alewell, C., Gebauer, G., Shope, C., Park, J.: Storm pulses and varying sources of hydrologic carbon export from a mountainous watershed. Journal of Hydrology, 440-441, 90-101 (2012).

Menzel, F., Staab, M., Chung, A., Gebauer, G., Blüthgen, N.: Trophic ecology of parabiotic ants: Do the partners have similar food niches?. Austral Ecology, 37(5), 537-546 (2012).


Stöckel, M., Meyer, C., Gebauer, G.: The degree of mycoheterotrophic carbon gain in green, variegated and vegetative albino individuals of Cephalanthera damasonium is related to leaf chlorophyll concentrations. New Phytologist, 189(3), 790-796 (2011).

Girlanda, M., Segreto, R., Cafasso, D., Liebel, H., Rodda, M., Ercole, E., Cozzolino, S., Gebauer, G., Perotto, S.: Photosynthetic Mediterranean meadow orchids feature partial mycoheterotrophy and specific mycorrhizal associations. American Journal of Botany, 98(7), 1148-1163 (2011).

Liebel, H., Gebauer, G.: Stable isotope signatures confirm carbon and nitrogen gain through ectomycorrhizas in the ghost orchid Epipogium aphyllum Swartz. Plant Biology, 13(3), 270-275 (2011).


Merckx, V., Stöckel, M., Fleischmann, A., Bruns, T., Gebauer, G.: 15N and 13C natural abundance of two mycoheterotrophic and a putative partially mycoheterotrophic species associated with arbuscular mycorrhizal fungi. New Phytologist, 188(2), 590-596 (2010).

Liebel, H., Bidartondo, M., Preiß, K., Segreto, R., Stöckel, M., Rodda, M., Gebauer, G.: C and N stable isotope signatures reveal constraints to nutritional modes in orchids from the Mediterranean and Macaronesia. American Journal of Botany, 97(6), 903-912 (2010).

Goldberg, S., Knorr, K., Blodau, C., Lischeid, G., Gebauer, G.: Impact of altering the water table height of an acidic fen on N2O and NO fluxes and soil concentrations. Global Change Biology, 16(1), 220-233 (2010).

Preiß, K., Adam, I., Gebauer, G.: Irradiance governs exploitation of fungi: fine-tuning of carbon gain by two partially myco-heterotrophic orchids. Proceedings of the Royal Society B: Biological Sciences, 277(1686), 1333-1336 (2010).

Bihn, J., Gebauer, G., Brandl, R.: Loss of functional diversity of ant assemblages in secundary tropical forests. Ecology, 91, 782-792 (2010).

Goldberg, S., Borken, W., Gebauer, G.: N2O emission in a Norway spruce forest due to soil frost : Concentration and isotope profiles shed a new light on an old story. Biogeochemistry, 97(1), 21-30 (2010).

Feldhaar, H., Gebauer, G., Blüthgen, N.: Stable isotopes: past and future in exposing secrets of ant nutrition (Hymenoptera: Formicidae). Myrmecological News, 13, 3-13 (2010).


Cameron, D., Preiß, K., Gebauer, G., Read, D.: The chlorophyll-containing orchid Corallorhiza trifida derives little carbon through photosynthesis. New Phytologist, 183(2), 358-364 (2009).

Goldberg, S., Gebauer, G.: Drought turns a Central European Norway spruce forest soil from an N2O source to a transient N2O sink. Global Change Biology, 15(4), 850-860 (2009).

Ogura-Tsujita, Y., Gebauer, G., Hashimoto, T., Umata, H., Yukawa, T.: Evidence for novel and specialised mycorrhizal parasitism: the orchid Gastrodia confusa gains carbon from saprotrophic Mycena. Proceedings of the Royal Society B: Biological Sciences, 276(1657), 761-767 (2009).

Hynson, N., Preiß, K., Gebauer, G.: Is it better to give than receive? A stable isotope perspective to orchid-fungal carbon transport in the green orchid species Goodyera repens and Goodyera oblongifolia. New Phytologist, 182(1), 8-11 (2009).

Hynson, N., Preiß, K., Gebauer, G., Bruns, T.: Isotopic evidence of full and partial myco-heterotrophy in the plant tribe Pyroleae (Ericaceae). New Phytologist, 182(3), 719-726 (2009).

Goldberg, S., Gebauer, G.: N2O and NO fluxes between a Norway spruce forest soil and atmosphere as affected by prolonged summer drought. Soil Biology & Biochemistry, 41(9), 1986-1995 (2009).

Liebel, H., Preiß, K., Gebauer, G.: Partiell mykoheterotrofi hos norske vintergrønnarter – relevans for vernetiltak overfor truede arter. Blyttia, 67(2), 138-143 (2009).


Preiß, K., Meyer, C., Gebauer, G.: The ectomycorrhizal specialist orchid Corallorhiza trifida is a partial myco-heterotroph. New Phytologist, 178(2), 395-400 (2008).

Goldberg, S., Muhr, J., Borken, W., Gebauer, G.: Fluxes of climate-relevant trace gases between a Norway spruce forest soil and atmosphere during repeated freeze-thaw cycles in mesocosms. Journal of Plant Nutrition and Soil Science, 171(5), 729-739 (2008).

Preiß, K., Gebauer, G.: A methodological approach to improve estimates of nutrient gains by partially myco-heterotrophic plants. Isotopes in Environmental and Health Studies, 44(4), 393-401 (2008).

Goldberg, S., Knorr, K., Gebauer, G.: N2O concentration and isotope signature along profiles provide deeper insight into the fate of N2O in soils. Isotopes in Environmental and Health Studies, 44(4), 377-391 (2008).

Muhr, J., Goldberg, S., Borken, W., Gebauer, G.: Repeated drying-rewetting cycles and their effects on the emission of CO2, N2O, NOx and CH4 in a forest soil. Journal of Plant Nutrition and Soil Science, 171(5), 719-728 (2008).


Fiedler, K., Kuhlmann, F., Schlick-Steiner, B., Steiner, F., Gebauer, G.: Stable N-isotope signatures of central European ants - assessing positions in a trophic gradient. Insectes Sociaux, 54(4), 393-402 (2007).

Preiß, K., Hynson, N., Gebauer, G., Allen, E., Allen, M., Read, D.: Wide geographical and ecological distribution of nitrogen and carbon gains from fungi in pyroloids and monotropoids (Ericaceae) and in orchids. New Phytologist, 175(1), 166-175 (2007).


Abadie, J., Püttsepp, Ü., Gebauer, G., Faccio, A., Bonfante, P., Selosse, M.: Cephalanthera longifolia (Neottieae, Orchidaceae) is mixotrophic: a comparative study between green and non-photosynthetic individuals. Canadian Journal of Botany, 84, 1462-1477 (2006).


Julou, T., Burghardt, B., Gebauer, G., Berveiller, D., Damesin, C., Selosse, M.: Mixotrophy in orchids: insights from a comparative study of green individuals and nonphotosynthetic individuals of Cephalanthera damasonium. New Phytologist, 166(2), 639-653 (2005).


Bidartondo, M., Burghardt, B., Gebauer, G., Bruns, T., Read, D.: Changing partners in the dark: Isotopic and molecular evidence of ectomycorrhizal liaisons between forest orchids and trees. Proceedings of the Royal Society B: Biological Sciences, 271(1550), 1799-1806 (2004).

Wrage, N., Lauf, J., del Prado, A., Pinto, M., Pietrzak, S., Yamulki, S., Oenema, O., Gebauer, G.: Distinguishing sources of N₂O in European grasslands by stable isotope analysis. Rapid Communications in Mass Spectrometry, 18(11), 1201-1207 (2004).

Pinto, M., Merino, P., del Prado, A., Estavillo, J., Yamulki, S., Gebauer, G., Pietrzak, S., Lauf, J., Oenema, O.: Increased emissions of nitric oxide and nitrous oxide following tillage of a perennial pasture. Nutrient Cycling in Agroecosystems, 70(1), 13-22 (2004).

Taylor, A., Gebauer, G., Read, D.: Uptake of nitrogen and carbon from double-labelled (15N and 13C) glycine by mycorrhizal pine seedlings. New Phytologist, 164(2), 383-388 (2004).


Gebauer, G., Meyer, M.: 15N and 13C natural abundance of autotrophic and mycoheterotrophic orchids provides insight into nitrogen and carbon gain from fungal association. New Phytologist, 160(1), 209-223 (2003).

Blüthgen, N., Gebauer, G., Fiedler, K.: Disentangling a rainforest food web using stable isotopes: dietary diversity in a species-rich ant community. Oecologia, 137(3), 426-435 (2003).

Tilsner, J., Wrage, N., Lauf, J., Gebauer, G.: Emission of gaseous nitrogen oxides from an extensively managed grassland in NE Bavaria, Germany. I. Annual budgets of N₂O and NOₓ emissions. Biogeochemistry, 63(3), 229-247 (2003).

Tilsner, J., Wrage, N., Lauf, J., Gebauer, G.: Emission of gaseous nitrogen oxides from an extensively managed grassland in NE Bavaria, Germany. II. Stable isotope natural abundance of N₂O. Biogeochemistry, 63(3), 249-267 (2003).

Dinkelmeyer, H., Lehmann, J., Renck, A., Trujillo, L., Pereira da Silva Jr., J., Gebauer, G., Kaiser, K.: Nitrogen uptake from 15N-enriched fertilizer by four tree crops in an Amazonian agroforest. Agroforestry Systems, 57(3), 213-224 (2003).

Menyailo, O., Hungate, B., Lehmann, J., Gebauer, G., Zech, W.: Tree species of the central amazon and soil moisture alter stable isotope composition of nitrogen and oxygen in nitrous oxide evolved from soil. Isotopes in Environmental and Health Studies, 39(1), 41-52 (2003).


Lehmann, J., Gebauer, G., Zech, W.: Nitrogen cycling assessment in a hedgerow intercropping system using 15N enrichment. Nutrient Cycling in Agroecosystems, 62(1), 1-9 (2002).

Estavillo, J., Merino, P., Pinto, M., Yamulki, S., Gebauer, G., Sapek, A., Corré, W.: Short term effect of ploughing a permanent pasture on N₂O production from nitrification and denitrification. Plant and Soil, 239(2), 253-265 (2002).


Lauf, J., Gebauer, G.: On-line analysis of nitrogen stable isotopes in NO from ambient air samples. Analytical Chemistry, 73(6), 1126-1133 (2001).


Lehmann, J., Pereira da Silva Jr., J., Schroth, G., Gebauer, G., Ferreira da Silva, L.: Nitrogen use in mixed tree crop plantations with a legume cover crop. Plant and Soil, 225(1-2), 63-72 (2000).

Velthof, G., van Groenigen, J., Gebauer, G., Pietrzak, S., Jarvis, S., Pinto, M., Corré, W., Oenema, O.: Temporal stability of spatial patterns of nitrous oxide fluxes from sloping grassland. Journal of Environmental Quality, 29(5), 1397-1407 (2000).


Gebauer, G., Taylor, A.: 15N natural abundance in fruit bodies of different functional groups of fungi in relation to substrate utilization. New Phytologist, 142(1), 93-101 (1999).

Lehmann, J., Feilner, T., Gebauer, G., Zech, W.: Nitrogen uptake of sorghum (Sorghum bicolor L.) from tree mulch and mineral fertilizer under high leaching conditions estimated by nitrogen-15 enrichment. Biology and Fertility of Soils, 30(1-2), 90-95 (1999).

Lehmann, J., Weigl, D., Peter, I., Droppelmann, K., Gebauer, G., Goldbach, H., Zech, W.: Nutrient interactions of alley cropped Sorghum bicolor and Acacia saligna in a runoff irrigation system in Northern Kenya. Plant and Soil, 210(2), 249-262 (1999).

Kalusche, B., Verscht, J., Gebauer, G., Komor, E., Haase, A.: Sucrose unloading in the hypocotyl of the Ricinus communis L. seedling measured by 13C-nuclear magnetic resonance spectroscopy in vivo. Planta, 208(3), 358-364 (1999).


Setzer, B., Gebauer, G., Mohr, H.: Die Bedeutung der Kaliumversorgung für Aufnahme und Assimilation von [15N-]Nitrat und [15N-]Ammonium durch Keimpflanzen der Kiefer (Pinus sylvestris). Allgemeine Forst- und Jagdzeitung, 169(4), 76-80 (1998).

Lehmann, J., Peter, I., Steglich, C., Gebauer, G., Huwe, B., Zech, W.: Below-ground interactions in dryland agroforestry. Forest Ecology and Management, 111(2-3), 157-169 (1998).

Oenema, O., Gebauer, G., Rodriguez, M., Sapek, A., Jarvis, S., Corré, W., Yamulki, S.: Controlling nitrous oxide emissions from grassland livestock production systems. Nutrient Cycling in Agroecosystems, 52(2-3), 141-149 (1998).

Gebauer, G., Hahn, G., Rodenkirchen, H., Zuleger, M.: Effects of acid irrigation and liming on nitrate reduction and nitrate content of Picea abies (L.) Karst. and Oxalis acetosella L.. Plant and Soil, 199(1), 59-70 (1998).

Lauf, J., Gebauer, G.: On-line analysis of stable isotopes of nitrogen in NH₃, NO and NO₂ at natural abundance levels. Analytical Chemistry, 70(13), 2750-2756 (1998).


Jung, K., Gebauer, G., Gehre, M., Hofmann, D., Weißflog, L., Schüürmann, G.: Anthropogenic impacts on natural nitrogen isotope variations in Pinus sylvestris stands in an industrially polluted area. Environmental Pollution, 97(1-2), 175-181 (1997).


May, C., Schmidt, G., Gebauer, G., Schulze, E.: The Fate of [15N]Ammonium and [15N]Nitrate in the Soil of a 140-Year-Old Spruce Stand (Picea Abies) in the Fichtelgebirge (NE-Bavaria). Isotopes in Environmental and Health Studies, 32(2-3), 149-158 (1996).

Buchmann, N., Gebauer, G., Schulze, E.: Partitioning of 15N-labeled ammonium and nitrate among soil, litter, below- and above-ground biomass of trees and understory in a 15-year-old Picea abies plantation. Biogeochemistry, 33(1), 1-23 (1996).

Schmidt, G., May, C., Gebauer, G., Schulze, E.: Uptake of [15N] Ammonium and [15N]Nitrate in a 140-Year-Old Spruce Stand (Picea abies) in the Fichtelgebirge (NE Bavaria). Isotopes in Environmental and Health Studies, 32(2-3), 141-148 (1996).


Buchmann, N., Schulze, E., Gebauer, G.: 15N-ammonium and 15N-nitrate uptake of a 15-year-old Picea abies plantation. Oecologia, 102(3), 361-370 (1995).

Durka, W., Schulze, E., Gebauer, G., Voerkelius, S.: Origin of nitrate in forest spring water: evidence from natural isotope ratios of NO3-d15N and NO3-d18O. Isotopes in Environmental and Health Studies, 31(3-4), 386-387 (1995).


Durka, W., Schulze, E., Gebauer, G., Voerkelius, S.: Effects of forest decline on uptake and leaching of deposited nitrate determined from ¹⁵N and ¹⁸O measurements. Nature, 372(6508), 765-767 (1994).

Gebauer, G., Giesemann, A., Schulze, E., Jäger, H.: Isotope ratios and concentrations of sulfur and nitrogen in needles and soils of "Picea abies" stands as influenced by atmospheric deposition of sulfur and nitrogen compounds. Plant and Soil, 164(2), 267-281 (1994).

Schulze, E., Chapin III, F., Gebauer, G.: Nitrogen nutrition and isotope differences among life forms at the northern treeline of Alaska. Oecologia, 100(4), 406-412 (1994).

Rehder, H., Gökceoǧlu, M., Gebauer, G., Güleryüz, G.: Die Vegetation des Uludaǧ-Gebirges (Anatolien). Phytocoenologia, 24(1-4), 167-192 (1994).


Widmann, K., Gebauer, G., Rehder, H., Ziegler, H.: Fluctuations in nitrate reductase activity, and organic nitrogen concentrations of succulent plants under different nitrogen and water regimes. Oecologia, 94, 146-152 (1993).

Stadler, J., Gebauer, G., Schulze, E.: The influence of ammonium on nitrate uptake and assimilation in 2-year-old ash and oak trees - a tracer study with 15N. Isotopes in Environmental and Health Studies, 29(1-2), 85-92 (1993).

Schmidt, G., Gebauer, G., Widmann, K., Ziegler, H.: Influence of nitrogen supply and temperature on stable carbon isotope ratios in plants of different photosynthetic pathways (C₃, C₄, CAM). Isotopes in Environmental and Health Studies, 29(1-2), 9-13 (1993).

Winkler, E., Gebauer, G.: Investigations on the nitrogen metabolism of forest trees by mathematical modelling of natural isotope ratios. Isotopes in Environmental and Health Studies, 29(3), 199-214 (1993).

Koppisch, D., Schulze, E., Gebauer, G.: ¹⁵N-labelled ammonium and nitrate uptake by the grass "Calamagrostis villosa". Isotopes in Environmental and Health Studies, 29(1-2), 77-84 (1993).

Gebauer, G., Dietrich, P.: Nitrogen isotope ratios in different compartments of a mixed stand of spruce, larch and beech trees and of understorey vegetation including fungi. Isotopes in Environmental and Health Studies, 29(1-2), 35-44 (1993).

Durka, W., Bruckner, G., Gebauer, G.: Probenpräparation von Nitrat aus komplexen Matrices zur Messung der N- und O-Isotopenverhältnisse. Isotopes in Environmental and Health Studies, 29(1-2), 197 (1993).

Bruckner, G., Gebauer, G., Schulze, E.: Uptake of ¹⁵NH₃ by "Picea abies" in closed chamber experiments. Isotopes in Environmental and Health Studies, 29(1-2), 71-76 (1993).


Stadler, J., Gebauer, G.: Nitrate reduction and nitrate content in ash trees (Fraxinus excelsior L.) : distribution between compartments, site comparison and seasonal variation. Trees, 6(4), 236-240 (1992).

Buchmann, N., Oren, R., Gebauer, G., Schulze, E.: The use of stable isotopes in ecosystem research : first results of a field study with ¹⁵N. Isotopes in Environmental and Health Studies, 28(1), 51-59 (1992).


Gebauer, G., Schulze, E.: Carbon and nitrogen isotope ratios in different compartments of a healthy and a declining "Picea abies" forest in the Fichtelgebirge, NE Bavaria. Oecologia, 87, 198-207 (1991).

Schulze, E., Lange, O., Ziegler, H., Gebauer, G.: Carbon and nitrogen isotope ratios of mistletoes growing on nitrogen and non-nitrogen fixing hosts and on CAM plants in the Namib desert confirm partial heterotrophy. Oecologia, 88, 457-462 (1991).

Schulze, E., Gebauer, G., Ziegler, H., Lange, O.: Estimates of nitrogen fixation by trees on an aridity gradient in Namibia. Oecologia, 88, 451-455 (1991).

Schulze, E., Gebauer, G., Schulze, W., Pate, J.: The utilization of nitrogen from insect capture by different growth forms of "Drosera" from Southwest Australia. Oecologia, 87, 240-246 (1991).


Widmann, K., Gebauer, G., Rehder, H., Ziegler, H.: Biomass production and nitrogen contents of the CAM plants "Kalanchoe daigremontiana" and "K. tubiflora" in cultures with different nitrogen and water supply. Oecologia, 82, 478-483 (1990).


Gebauer, G., Rehder, H., Wollenweber, B.: Nitrate, nitrate reduction and organic nitrogen in plants from different ecological and taxonomic groups of Central Europe. Oecologia, 75(3), 371-385 (1988).


Gebauer, G., Schuhmacher, M., Krstić, B., Rehder, H., Ziegler, H.: Biomass production and nitrate metabolism of Atriplex hortensis L. (C3 plant) and Amaranthus retroflexus L. (C4 plant) in cultures at different levels of nitrogen supply. Oecologia, 72(2), 303-314 (1987).

Gebauer, G., Schubert, B., Schuhmacher, M., Rehder, H., Ziegler, H.: Biomass production and nitrogen content of C₃-and C₄-grasses in pure and mixed culture with different nitrogen supply. Oecologia, 71(4), 613-617 (1987).


Krstić, B., Gebauer, G., Sarić, M.: Specific response of sugar beet cultivars to different nitrogen forms. Zeitschrift für Pflanzenernährung und Bodenkunde, 149(5), 561-571 (1986).


Gebauer, G., Melzer, A., Rehder, H.: Nitrate content and nitrate reductase activity in Rumex obtusifolius L. I. Differences in organs and diurnal changes. Oecologia, 63(1), 136-142 (1984).

Melzer, A., Gebauer, G., Rehder, H.: Nitrate content and nitrate reductase activity in Rumex obtusifolius L. II. Responses to nitrate starvation and nitrogen fertilization. Oecologia, 63(3), 380-385 (1984).

Books and Book sections


Gebauer, G., Schiebold, J.: Stable isotope natural abundance analysis as a tool for understanding orchid mycorrhizal nutrition. In: Nigel Swarts, Kingsley W. Dixon (eds.): Conservation methods for terrestrial orchids. - Plantation, FL : J. Ross Publishing, 2017. - 27-31.


Hynson, N., Madsen, T., Selosse, M., Adam, I., Ogura-Tsujita, Y., Roy, M., Gebauer, G.: The Physiological Ecology of Mycoheterotrophy. In: Merckx, Vincent (Hrsg.): Mycoheterotrophy : the biology of plants living on fungi. - New York : Springer, 2013. - 297-342.


Gebauer, G.: Partnertausch im dunklen Wald - Stabile Isotope geben neue Einblicke in das Ernährungsverhalten von Orchideen. In: Auf Spurensuche in der Natur : stabile Isotope in der ökologischen Forschung ; Rundgespräch am 4. April 2005 in München. - München : Pfeil, 2005. - 55-67.


Bauer, G., Gebauer, G., Harrison, A., Högberg, P., Högbom, L., Schinkel, H., Taylor, A., Novak, M., Harkness, D., Persson, T., Schulze, E.: Biotic and abiotic controls over ecosystem cycling of stable natural nitrogen, carbon and sulphur isotopes. In: Ernst-Detlef Schulze (eds.): Carbon and nitrogen cycling in European forest ecosystems. - Berlin : Springer, 2000. - 189-214.

Harrison, A., Schulze, E., Gebauer, G., Bruckner, G.: Canopy uptake and utilisation of atmospheric pollutant Nitrogen. In: Ernst-Detlef Schulze (eds.): Carbon and Nitrogen Cycling in European Forest Ecosystems. - Berlin : Springer, 2000. - 171-188.

Gebauer, G., Lauf, J., May, C., Tilsner, J., Sapek, B., Sapek, A.: Effects of type and amount of nitrogen fertiliser application and of liming on 15N abundance and total nitrogen concentrations in the soil and vegetation of grassland in Poland. In: O. Oenema, A. Sapek (eds.): Effects of liming and nitrogen fertilizer application on soil acidity and gaseous nitrogen oxide emissions in grassland systems. - Raszyn, Poland : 2000. - 84-95.

Gebauer, G.: The use of stable isotopes to study the fate of nitrogen inputs to forest ecosystems. In: Maria A. Martins-Loução (eds.): Nitrogen in a sustainable ecosystem : from the cell to the plant. - Leiden : 2000. - 317-327.

Gebauer, G., Zeller, B., Schmidt, G., May, C., Buchmann, N., Colin-Belgrand, M., Dambrine, E., Martin, F., Schulze, E., Bottner, P.: The Fate of ¹⁵N-Labelled Nitrogen Inputs to Coniferous and Broadleaf Forests. In: Ernst-Detlef Schulze (eds.): Carbon and Nitrogen Cycling in European Forest Ecosystems. - Berlin : Springer, 2000. - 144-170.


Gebauer, G., Schulze, E.: Nitrate nutrition of Central European forest trees. In: Heinz Rennenberg (eds.): Trees : contributions to modern tree physiology. - Leiden : Backhuys, 1997. - 273-291.


Gebauer, G.: Zum Stand der Waldschadensdiskussion. In: Wolfgang Barz (eds.): Umwelt und Verkehr : Symposium am 19. und 20. Juni 1995 in Münster. - Landsberg : ecomed, 1996. - 43-60.


Durka, W., Schulze, E., Gebauer, G., Voerkelius, S.: Nachweis von atmosphärischem Nitrat im Abfluß aus Waldökosystemen mit Hilfe natürlicher Isotopenverhältnisse. In: Internationales Symposium Grundwasserversauerung durch Atmosphärische Deposition - Ursachen, Auswirkungen, Sanierungsstrategien. - München : Bayerisches Landesamt für Wasserwirtschaft, 1995. - 81-84.


Buchmann, N., Gebauer, G., Oren, R., Schulze, E.: 15N-application to a 12-year-old Norway spruce plantation in the Fichtelgebirge, NE-Bavaria, FRG - Pathways and Dynamics.. In: Experimental manipulations of biota and biogeochemical cycling in ecosystems : approach, methodologies, findings ; proceedings of a symposium jointly organized by Commission of the European Communities. - Brussels : Guyot, 1993. - 173-181.

Bruckner, G., Schulze, E., Gebauer, G.: Atmosphärische Stickstoffeinträge und Stickstoffaufnahme in Fichtenbeständen Nordbayerns. In: Kirchner, Manfred (Hrsg.): Proceedings : Internationales Symposium Stoffeinträge aus der Atmosphäre und Waldbodenbelastung in den Ländern von ARGE ALP und ALPEN-ADRIA. - Neuherberg : GSF-Forschungszentrum für Umwelt und Gesundheit, 1993. - 284-293.

Bruckner, G., Schulze, E., Gebauer, G.: ¹⁵N labelled NH₃ uptake experiments and their relation to natural conditions. In: J. Slanina, G. Angeletti (eds.): General assessment of biogenic emissions and deposition of nitrogen compounds, sulphur compounds and oxidants in Europe. - Brüssel : Guyot, 1993. - 321-327.


Kisser-Priesack, G., Gebauer, G.: Kinetics of 15NOx uptake by plant cuticles. In: Stable isotopes in plant nutrition, soil fertility and environmental studies : Proceedings of an International Symposium on the Use of Stable Isotopes in Plant Nutrition, Soil Fertility and Environmental Studies jointly organized by the International Atomic Energy Agency and the Food and Agriculture Organization of the United Nations and held in Vienna, 1 - 5 October 1990. - Wien : IAEA, 1991. - 619-625.

Gebauer, G.: Natural nitrogen isotope ratios in different compartments of Norway spruce from a healthy and a declining stand (IAEA-SM-313/56). In: Stable isotopes in plant nutrition, soil fertility and environmental studies : Proceedings of an International Symposium on the Use of Stable Isotopes in Plant Nutrition, Soil Fertility and Environmental Studies, jointly organized by the International Atomic Energy Agency and the Food and Agriculture Organization of the United Nations and held in Vienna, 1 - 5 October 1990. - Wien : IAEA, 1991. - 131-138.

Gebauer, G., Schulze, E.: Natürliche C- und N-Isotopenverhältnisse in verschiedenen Kompartimenten gesunder ung geschädigter Fichtenbestände. In: Reuther, Markus (Hrsg.): 2. Statusseminar der PBWU zum Forschungsschwerpunkt "Waldschäden" : Proceedings, 4.- 6. Februar 1991. - Neuherberg : GSF-Forschungszentrum für Umwelt und Gesundheit, 1991. - 283-299.

Gebauer, G., Katz, C., Schulze, E.: Uptake of gaseous and liquid nitrogen depositions and influence on the nutritional status of Norway spruce. In: Hantschel, Ralph ; Beese, Fritz(Hrsg.): Effects of forest management on the nitrogen-cycle with respect to changing environmental conditions : proceedings ; 9 - 13. Mai 1990. - Neuherberg : GSF-Forschungszentrum für Umwelt und Gesundheit, 1991. - 83-92.

Gebauer, G.: Waldschadensforschung im Fichtelgebirge. In: Reuther, Markus (Hrsg.): Proceedings : Expertentagung "Waldschadensforschung im Östlichen Mitteleuropa und in Bayern", 13. - 15.11.1990 in Schloss Neuburg/Inn bei Passau. - Neuherberg : GSF-Forschungszentrum für Umwelt und Gesundheit, 1991. - 154-167.


Gebauer, G.: Diurnal changes of nitrate content and nitrate reductase activity in different organs of Atriplex hortensis (C3 plant) and Amaranthus retroflexus (C4 plant). In: Marinus L. van Beusichem (eds.): Plant Nutrition - Physiology and Applications : proceedings of the eleventh International Plant Nutrition Colloquium, 30 July - 4 August 1989, Wageningen, The Netherlands. - Dordrecht : Kluwer, 1990. - 93-99.

Gebauer, G., Stadler, J.: Nitrate assimilation and nitrate content in different organs of ash trees (Fraxinus excelsior). In: Marinus L. van Beusichem (eds.): Plant Nutrition - Physiology and Applications : proceedings of the eleventh International Plant Nutrition Colloquium, 30 July - 4 August 1989, Wageningen, The Netherlands. - Dordrecht : Kluwer, 1990. - 101-106.

Katz, C., Gebauer, G., Schulze, E.: Uptake of 15NOx in relation to the ambient gas concentration and the nutrition of Picea abies (L.) Karst. trees. In: Hans-Dieter Payer (eds.): Environmental Research with Plants in Closed Chambers : proceedings of an international symposium jointly organised by the Commission of the European Communities. - Brüssel : 1990. - 347-351.


Schulze, E., Gebauer, G.: Aufnahme, Abgabe und Umsatz von Stickoxiden, NH4+ und Nitrat bei Waldbäumen, insbesondere der Fichte. In: 1. Statusseminar der PBWU zum Forschungsschwerpunkt "Waldschäden". - Neuherberg : 1989. - 119-133.


Gebauer, G.: Carbon, nitrogen and water use of C₃, C₄ and CAM plants : comparative aspects. In: F. Tognoni, G. Serra (eds.): Symposium on Biological Aspects on Energy Saving in Protected Cultication : Pisa, Italy, Sept. 8 - 11, 1987. - Wageningen : ISHS, 1988. - 73-84.

Gebauer, G., Schulze, E.: Forest decline of spruce as a result of nutrient imbalance and nutrient stress. In: Environmental aspects of applied biology : 19 – 21 September 1988, University of York, England. - Wellesbourne, Warwick : AAB Office, Inst. of Horticultural Research, 1988. - 123-130.

Other publications


Gebauer, G., Schweiger, J.: The use of multi-element stable isotope natural abundance (d13C, d15N, d2H) to elucidate orchid mycorrhizal nutrition. - (Paper), 2021 Virtual World Orchid Conference, 23.-26. April 2021, Taichung, Taiwan.


Puppe, D., Schrader, S., Giesemann, A., Gebauer, G.: Isotopic labelling of enchytraeids under FACE conditions: A possible way to analyse the residue-enchytraeid-soil system considering elevated atmospheric CO2 concentrations. Landbauforschung / Sonderheft, 357, 21-26 (2012).


Waterman, R., Bidartondo, M., Stofberg, J., Combs, J., Gebauer, G., Savolainen, V., Barraclough, T., Pauw, A.: The effects of above and below ground mutualisms on orchid speciation and co-existence. The American Naturalist, 177(2), E54-E68 (2011).


Liebel, H., Stöckel, M., Preiß, K., Gebauer, G.: Neue Erkenntnisse zur Lebensweise heimischer Orchideenarten - Relevanz für Artenschutzkonzepte. Berichte aus den Arbeitskreisen Heimische Orchideen, 25(1), 172-179 (2008).