Publications – University of Copenhagen


Albert KR (2009) Plant eco-physiological responses to multiple environmental and climate changes. Unpublished PhD thesis. University of Copenhagen, Copenhagen, 346 pp.

Albert, K.R., Ro-Poulsen, H., Mikkelsen, T.N., Michelsen, A., Linden, L., Beier, C., 2011a. Interactive effects of elevated CO2, warming and drought on photosynthesis of Deschampsia flexuosa in a temperate heath ecosystem. Journal of Experimental Botany 62, 4253–4266.

Albert, K.R., Mikkelsen, T.N., Michelsen, A., Ro-Poulsen, H., Linden, L., 2011b. Interactive effects of drought, elevated CO2 and warming on photosynthetic capacity and photosystem performance in temperate heath plants. Journal of Plant Physiology 168, 1550–1561.

Albert, K.R., Ro-Poulsen, H., Mikkelsen, T.N., Michelsen, A., Linden, L., Beier, C., 2011c. Effects of elevated CO2, warming and drought episodes on plant carbon uptake in a temperate heath ecosystem are controlled by soil water status. Plant, Cell & Environment 34, 1207–1222.

Albert, K. R., J. Kongstad, I. K. Schmidt, H. Ro-Poulsen, T. N. Mikkelsen, A. Michelsen, et al. 2012. Temperate heath plant response to dry conditions depends on growth strategy and less on physiology. Acta Oecol. 45, 79–87.

Albert, K.R., Boesgaard, K., Ro-Poulsen, H., Mikkelsen, T.N., Andersen, S., Pilegaard, K. 2013. Antagonism between elevated CO2, nighttime warming, and summer drought reduces the robustness of PSII performance to freezing events. Environmental and Experimental Botany 93, 1– 12.

Albert, K.R., Mikkelsen, T.N., Ro-Poulsen, H., Beier, C. 2014 Long term acclimation to elevated CO2 and drought increases the ozone toxicity in plants. Submitted.

Andresen, L.A., Michelsen A., Ambus P., Beier C. (2010a) Belowground heathland responses after 2 years of combined warming, elevated CO2 and summer drought. Biogeochemistry 101, 27-46.

Andresen L.C., Michelsen A., Jonasson S, Schmidt I.K., Mikkelsen T.N., Ambus P., Beier C. (2010b). Plant nutrient mobilization in temperate heathland responds to elevated CO2, temperature and drought. Plant and Soil 328, 381-396.

Andresen LC, Konestabo HS, Maraldo K, Holmstrup M, Ambus P, Beier C, Michelsen A (2011) Organic matter flow in the food web at a temperate heath under multifactorial climate change. Rapid Communications in Mass Spectrometry 25: 1485-1496.

Andresen LC, Dungait JAJ, Bol R, Selsted MB, Ambus P, Michelsen A (2014) Bacteria and fungi respond differently to multifactorial climate change in a temperate heathland, traced with 13C-glycine and FACE CO2. PLoS One 9(1) e85070.

Arndal M, Merrild M, Michelsen A, Schmidt I, Mikkelsen T, Beier C. 2013. Net root growth and nutrient acquisition in response to predicted climate change in two contrasting heathland species. Plant and soil 369: 615-629.

Arndal M, Schmidt I, Kongstad J, Beier C, Michelsen A. 2014. Root growth and N dynamics in response to multi-year experimental warming, summer drought and elevated CO2 in a mixed heathland-grass ecosystem. Functional Plant Biology 41: 1-10.

Arndal MF, Tolver A, Larsen, KS, Beier C, Schmidt  IK. Changes in fine root growth and rooting pattern to elevated CO2, warming and drought in a mixed heathland-grassland. Ecosystems (in review).

Beier, C. (2004) Interactions of elevated CO2 and temperature on terrestrial ecosystem structure and functioning – the role of whole-ecosystem manipulation experiments. New Phytologist, 162, 243-245.

Beier, C., Emmett, B., Gundersen, P., Tietema, A., Penuelas, J., Estiarte, M., Gordon, C., Gorissen, A., Llorens, L., Roda, F. & Williams, D. (2004) Novel approaches to study climate change effects on terrestrial ecosystems in the field – drought and passive night time warming. Ecosystems, 7, 583–597.

Beier, C.; Beierkuhnlein, C.; Wohlgemuth, T.; Penuelas, J.; Emmett, B.A.; Körner, C.; de Boeck, H.; Christensen, J.H.; Leuzinger, S.; Janssens, I.A.; and Hansen, K. (2012) Precipitation manipulation experiments – Challenges and recommendations for the future. Ecology Letters, 15, 899-911. doi: 10.1111/j.1461-0248.2012.01793.x

Bergmark L, Haugwitz MS, Michelsen A, Sørensen SJ, Priemé A (In prep a) Two contrasting plant species affect community structure of soil bacteria and fungi but have only minor effects on the response of the microbial communities to global change manipulations.. In preparation.

Bergmark L, Haugwitz MS, Brejnrod A, Hansen MA, Abell GC, Priemé A (In prep b) Responses of the ammonium-oxidizing community to multifactorial global change manipulations under contrasting vegetation types in a temperate heathland soil. In preparation.

Boesgaard, KS., Mikkelsen, T.N., Ro-Poulsen, H., Ibrom I. 2013. Reduction of molecular gas diffusion through gaskets in leaf gas exchange cuvettes by leaf-mediated pores. Plant, Cell and Environment 36, 1352–1362.

Boesgaard KS, Albert KR, Ro-Poulsen H, Ibrom A, Larsen KS, Mikkelsen TN (xxxx).Photosynthetic stimulation by long term climate change manipulations in Calluna vulgaris is maintained on top of seasonal acclimation in cold season. In Boesgaard, K. Long-term ecophysiological responses toclimate change. (2013) PhD thesis. Department of chemical and biochemical engineering, Technical university of Denmark.

Boesgaard KS, Ro-Poulsen H, Mikkelsen TN (yyyy) Leaf level ecophysiological responses to climate change are consistent over six years of in-situ manipulations. In Boesgaard, K. Long-term ecophysiological responses toclimate change. (2013) PhD thesis. Department of chemical and biochemical engineering, Technical university of Denmark.

Bruhn D, Larsen KS, de Dato GD, Duce P, Zara P, Beier C, Schmidt IK, Clausen S, Mikkelsen TN. 2013. Improving the performance of infrared reflective night curtains for warming field plots. Agricultural and Forest Meteorology, 173, 53–62.

Damgaard C, Riis-Nielsen T, Schmidt IK. (2009) Estimating plant competition coefficients and predicting community dynamics from non-destructive pin-point data: a case study with Calluna vulgaris and Deschampsia flexuosa. Plant Ecology 201, 687-697.

De Boeck, H.J.;  Vicca, S.;  Roy, J.; Nijs, I.; Milcu, A.; Kreyling, J.; Jentsch, A.; Chabbi, A.; Campioli, M.; Callaghan, T.; Beierkuhnlein, C.; Beier, C. (Submitted) Choices and pitfalls  in global change experiments. In review.

Dyrnum K, Priemé A, Michelsen A. (submitted) Global change alters diazotroph abundance and activity in a temperate heathland moss. Submitted.

Eissenstat DM, Wells CE, Yanai RD, Whitbeck JL. 2000. Building roots in a changing environment: implications for root longevity. New Phytologist 147: 33-42.

Gifford RM, Lutze JL, Barrett D. 1996. Global atmospheric change effects on terrestrial carbon sequestration: Exploration with a global C- and N-cycle model (CQUESTN). Plant and soil 187: 369-387.

de Graaff MA, van Groenigen KJ, Six J, Hungate B, van Kessel C (2006) Interactions between plant growth and soil nutrient cycling under elevated CO2: a metaanalysis. Global Change Biology, 12, 2077–2091.

Haugwitz MS, Bergmark L, Priemé A, Christensen S, Beier C, Michelsen A (2014) Soil microorganisms respond to five years of climate change manipulations and elevated atmospheric CO2 in a temperate heath ecosystem. Plant and Soil, 374, 211-222.

Haugwitz MS, Bergmark L, Michelsen A, Sørensen SJ, Beier C, Priemé A. (in prep. a) Soil fungal and bacterial communities respond differently to global change manipulations and seasonal fluctuations. In preparation.

Haugwitz MS, Michelsen A, Priemé A. (in prep. b) The legacy of water shortage: Previous drought increases litter decomposition rates in a temperate mixed grass- and shrubland. In preparation.

van Heerwaarden LM, Toet S, van Logtestijn RSP, Aerts R (2005) Internal nitrogen dynamics in the graminoid Molinia caerulea under higher N supply and elevated CO2 concentrations. Plant and Soil, 277, 255–264.

Holmstrup M, Sørensen JG, Maraldo K, Schmidt IK, Mason S, Tietema A, Smith AR, Emmett B, Schmelz R, Bataillon T, Beier C, Ehlers BK (2012) Increased frequency of drought reduces species richness of enchytraeid communities in both wet and dry heathland soils. Soil Biology & Biochemistry 53: 43-49

Holmstrup M, Bayley M (2013) Protaphorura tricampata, a euedaphic and highly permeable springtail that can sustain activity by osmoregulation during extreme drought. Journal of Insect Physiology 59: 1104-1110

Holmstrup M, Sørensen JG, Schmidt IK, Nielsen PL, Mason S, Tietema A, Smith AR, Bataillon T, Beier C, Ehlers BK (2013) Soil microarthropods are only weakly impacted after 13 years of repeated drought treatment in wet and dry heathland soils. Soil Biology & Biochemistry 66: 110-118

Holmstrup et al. (in preparation) Long-term simulated climate change has relative small effects on enchytraeids.

Jonasson S, Michelsen A, Schmidt IK, Nielsen EV, Callaghan TV (1996) Microbial biomass C, N and P in two arctic soils and responses to addition of NPK fertilizer and sugar: implications for plant nutrient uptake. Oecologia, 106, 507–515.

Kayler, Z.E.; De Boeck, H.J.; Fatichi, S.; Grünzweig, J.M.; Merbold, L.; Beier, C.; McDowell, N. and Dukes, J.S. (2015) Experiments to Confront the Environmental Extremes of Climate Change. Frontiers in Ecology and the Environment. In Press.

Kongstad J, Schmidt I.K, Riis-Nielsen T, Arndal M.F, Mikkelsen T.N, Beier C (2012) High resilience in heathland plants to changes in temperature, drought, and CO2 in combination: Results from the CLIMAITE Experiment. Ecosystems 15: 269–283. DOI: 10.1007/s10021-011-9508-9

Kongstad J, Ransijn J, Schmidt IK. (submitted) Altered flower phenology and allocation of resources to reproductive structures in response to drought, warming and CO2 enrichment. Plant Ecology.

Kreyling, J.; Jentsch, A. and Beier, C (2013) Beyond realism in climate change experiments: gradient approaches identify thresholds and tipping points. Ecol. Letters. doi: 10.1111/ele.12193.

Kreyling, J. and Beier, C (2013) Complexity in climate change manipulation experiments. BioScience. 9, 763-767.

Kröel-Dulay G, Ransijn J Schmidt IK, Sowerby A, Tietema A, Estiarte M, de Dato G, Riis-Nielsen T, Kongstad J, Emmett B, de Angelis P, Larsen SL, Ogaya R, Smith A, Beier C, Penuelas J. (submitted) Disturbance increases ecosystem sensitivity to climate change. NATURE Communication

Larsen KS, Andresen LC, Beier C, Jonasson S, Albert KR, Ambus P, Andersen KS, Arndal MF, Carter MS, Christensen S, Holmstrup M, Ibrom A, Kongstad J, van der Linden L, Maraldo K, Michelsen A, Mikkelsen TN, Pilegaard K, Priemé A, Ro-Poulsen H, Schmidt IK, Selsted MB (2011) Reduced N cycling in response to drought, warming, and elevated CO2 in a Danish heathland: Synthesizing results of the CLIMAITE project after two years of treatments. Global Change Biology 17: 1884-1899

Luo Y, Su B, Currie WS et al. (2004) Progressive nitrogen limitation of ecosystem responses to rising atmospheric carbon dioxide. BioScience, 54, 731–739.

Lutze JL, Gifford RM (2000) Nitrogen accumulation and distribution in Danthonia richardsonii swards in response to CO2 and nitrogen supply over four years of growth. Global Change Biology, 6, 1–12.

Lutze JL, Gifford RM, Adams HN (2000) Litter quality and decomposition in Danthonia richardsonii swards in response to CO2 and nitrogen supply over four years of growth. Global Change Biology, 6, 13–24.

Maraldo K, Beier C, Schmidt IK, Holmstrup M (2008) Can field populations of the enchytraeid, Cognettia sphagnetorum, adapt to increased drought stress? Soil Biology and Biochemistry 40: 1765-1771

Maraldo K, Ravn HW, Slotsbo S, Holmstrup M (2009) Responses to acute and chronic desiccation stress in Enchytraeus (Oligochaeta: Enchytraeidae). Journal of Comparative Physiology B 179: 113-123

Maraldo K, Holmstrup M (2009) Recovery of enchytraeid populations after severe drought events. Applied Soil Ecology 42: 227-235

Maraldo K, Holmstrup M (2010) Enchytraeids in a changing climate: A mini-review. Pedobiologia 53: 161-167

Maraldo K, Linden LG, Christensen B, Mikkelsen TN, Beier C, Krogh PH, Holmstrup M (2010) The counteracting effects of elevated air CO2 concentrations and drought episodes: studies of enchytraeid populations in dry heathland. Soil Biology and Biochemistry 42: 1958-1966

Maraldo K, Christensen B, Holmstrup M (2011) The excretion of ammonium by enchytraeids (Cognettia sphagnetorum). Soil Biology & Biochemistry 43: 991-996

Marion GM, Hastings SJ, Oberbauer SF, Oechel WC (1989) Soil-plant element relationships in a tundra ecosystem. Holarctic Ecology, 12, 296–303.

Merrild MP, Kjøller R, Michelsen A (2014a) Seasonal variation in fungal colonization of Calluna vulgaris and Deschampsia flexuosa roots after six years of experimental drought, warming, and elevated CO2. Submitted.

Merrild MP, Sárossy Z, Kjøller R, Beier C, Michelsen A (2014b) Climate change effects on development of external mycorrhizal mycelium and soil structure. In preparation.

Miglietta, F., Peressotti, A., Vaccari, F.P., Zaldei, A., deAngelis, P. & Scarascia-Mugnozza, G. (2001) Free-air CO2 enrichment (FACE) of a poplar plantation: the POPFACE fumigation system. New Phytologist, 150, 465–476.

Mikkelsen TN, Beier C, Jonasson S, Holmstrup M, Schmidt IK, Ambus P, Pilegaard K, Michelsen A, Albert K, Andresen LC, Arndal MF, Bruun N, Christensen S, Danbæk S, Gundersen P, Jørgensen P, Linden LG, Kongstad J, Maraldo K, Priemé A,Riis-Nielsen T, Ro-Poulsen H, Stevnbak K, Selsted MB, Sørensen P, Larsen KS, Carter MS, Ibrom A, Martinussen T, Miglietta F, Sverdrup H. 2008. Experimental design of multifactor climate change experiments with elevated CO2, warming and drought: the CLIMAITE project. Functionel Ecology, 22, 185–95.

Nielsen, P.L, Andresen, L.C., Michelsen, A., Schmidt, I.K, Kongstad, J. (2009) Seasonal variations and effects of nutrient applications on N and P and microbial biomass under two temperate heathland plants.  Applied Soil Ecology 42, 279-287.

Nielsen, P.L, Reinsch S., Michelsen, A., Schmidt, I.K,Ambus P. (manus) Partitioning of newly assimilated carbon (13C) in plant and soil; responses to elevated CO2, warming and prolonged summer drought in a grassy heathland.

Ransijn J, Albert KR, Mikkelsen TN, Beier C,  Schmidt IK (submitted) Heathland species responses to climatic change depend on growth strategy. Ecosystems.

Ransijn J, Damgaard C, Schmidt IK (submitted) Competitive interactions in dry heathlands explain plant abundance patterns and species coexistence. Plant Ecology.

Ransijn J, Damgaard C, Schmidt IK (submitted) Climate change effects on competitive interactions in a dry heathland.

Rastetter EB, Agren GI, Shaver GR (1997) Responses of N-limited ecosystems to increased CO2: a balanced-nutrition, coupled-element-cycles model. Ecological Applications, 7, 444–460.

Reich PB, Hobbie SE, Lee T et al. (2006) Nitrogen limitation constrains sustainability of ecosystem response to CO2. Nature, 440, 922–925.

Reinsch, S.; Ambus, P.; Thornton, B. and Paterson, E. 2013 Impact of future climatic conditions on the potential for plant-mediated soil organic matter priming. Soil Biology & Biogeochemistry, 65, 133-140

Reinsch, S.; Michelsen, A.; Sárossy, Z.; Egsgaard, H.; Schmidt, I.K.; Jakobsen, I. and Ambus, P. (2014) Short-term utilization of carbon by the soil microbial community under future climatic conditions in a temperate heathland.  Soil Biology and Biochemistry, 68, 9-19

Schmidt IK, Riis-Nielsen T, Kongstad J, Ransijn J, Damgaard C, Scherber C, Beier C (submitted) Sensitivity to climate change in heathland plant community; the role of disturbance.

Sowerby, A., Emmett, B.A., Tietema, A., Beier, C. (2008) Contrasting effects of repeated summer drought on soil carbon efflux in hydric and mesic heathland soils. Global Change Biology, 14, 2388-2404.

Selsted, M. B.; Ambus, P.; Michelsen, A.; van der Linden, L.; Larsen, K.S.; Pilegaard, K.; Mikkelsen, T.N. and Beier, C. (2011). Measurement of carbon dioxide fluxes in a free-air carbon dioxide enrichment experiment using the closed flux chamber technique. Atmospheric Environment, 45, 208-214.

Selsted, M.; van der Linden, L.; Ibrom, A.; Michelsen, A.; Larsen, K.; Kongstad, J.; Mikkelsen, T.; Pilegaard, K.; Beier, C.; Ambus, P. (2012). Soil respiration is stimulated by elevated CO2 and reduced by summer drought: three years of measurements in a multifactor ecosystem manipulation experiment in a temperate heathland (CLIMAITE). Global Change Biology, 18, 1216-1230.

Stevnbak, K.; Maraldo, K.; Georgieva, S.; Bjørnlund, L.; Beier, C.; Schmidt, I. K.; Christensen, S., Suppression of soil decomposers and promotion of long-lived, root herbivorous nematodes by climate change. European Journal of Soil Biology 2012, 52, 1-7.

Waagner D, Bayley M, Holmstrup M (2011) Recovery of reproduction after drought in the soil living Folsomia candida (Collembola). Soil Biology & Biochemistry 43: 690-692

Waagner D, Bayley M, Mariën J, Holmstrup M, Ellers J, Roelofs D (2012) Ecological and molecular consequences of prolonged drought and subsequent rehydration in Folsomia candida (Collembola). Journal of Insect Physiology 58: 130-137