Vibeke Langer

Vibeke Langer

Associate Professor, Professor emeritus.

Member of:

    ORCID: 0000-0001-6789-1352

    Publication year:
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    1 - 51 out of 51Page size: 100
    1. 2024
    2. Published

      Parasitoids of the cabbage seed weevil deliver high and consistent parasitism in variable landscapes: A showcase of conservation biocontrol

      Langer, Vibeke & Jensen, Signe Marie, 2024, In: Pest Management Science. 80, 5, p. 2362-2370 9 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    3. 2019
    4. Published

      En fælles front for alle bier

      Dupont, Y. L., Madsen, H. B., Rasmussen, C., Hansted, L., Kryger, P., Ravn, H. P., Schmidt, I. K., Olesen, J. M., Holm, E., Langer, V., Sigsgaard, L., Eilenberg, J., Skov, C., Lassen, K., Ahrenfeldt, E. J., Calabuig, I., Holst, N., Boelt, B., Jensen, A. B., Lecocq, A. & 2 others, Howe, A. G. & Termansen, Mette, 2019, In: Aktuel Naturvidenskab. 2019, 4, p. 2

      Research output: Contribution to journal › Comment/debate › Research

    5. 2015
    6. Published

      Natur og biodiversitet

      Strandberg, B., Bruus, M., Krogh, P. H., Ravnskov, S., Hansted, L., Sigsgaard, L, Ahrenfeldt, E. J., Andreasen, L. & Langer, Vibeke, 2015, Økologiens bidrag til samfundsgoder: vidensyntese 2015. Melby Jespersen, L. (ed.). ICROFS, p. 49-106 57 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    7. 2014
    8. Published

      Collaborative partnerships between organic farmers in livestock-intensive areas of Denmark

      Asai, M. & Langer, Vibeke, 2014, In: Organic Agriculture - Official journal of The International Society of Organic Agriculture Research. 4, 1, p. 63-77 15 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    9. Published

      Livestock farmer perceptions of successful collaborative arrangements for manure exchange: a study in Denmark

      Asai, M., Langer, Vibeke, Frederiksen, P. & Jacobsen, Brian H., 2014, In: Agricultural Systems. 128, p. 55-65 11 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    10. Published

      MSc Agriculture students working with ex-campus stakeholders: first experiences and challenges

      Langer, Vibeke, Lund, M. & Bendevis, Mira Arpe, 2014, Farming systems facing global challenges: Capacities and strategies: The 11th European IFSA Symposium, 1-4 April 2014, Berlin, Germany. Aenis, T., Knierim, A., Riecher, M-C., Ridder, R., Schobert, H. & Fischer, H. (eds.). IFSA, p. 514-519 6 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    11. Published

      Responding to environmental regulations through collaborative arrangements: social aspects of manure partnerships in Denmark

      Asai, M., Langer, Vibeke & Frederiksen, P., 2014, In: Livestock Science. 167, p. 370-380 11 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    12. 2013
    13. Published

      Road verges and winter wheat fields as resources for wild bees in agricultural landscapes

      Henriksen, C. C. I. & Langer, Vibeke, 2013, In: Agriculture, Ecosystems & Environment. 173, p. 66-71 6 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    14. 2011
    15. Published

      Comparing farmland biodiversity in organic and conventional farming systems: making sense and including context

      Langer, Vibeke, Rasmussen, Jesper & Henriksen, C. C. I., 2011, Organic is life knowledge for tomorrow: vol. 2; socio-economy, livestock, food quality, agro-ecology and knowledge dissemination. Proceedings of the third scientific conference of the International Society of Organic Agriculture Research (ISOFAR) . International Society of Organic Agriculture Research (ISOFAR), Vol. 2. p. 350-353 4 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    16. Published

      Innovative education in agroecology: experiential learning for a sustainable agriculture

      Francis, C. A., Jordan, N., Porter, P., Breland, T. A., Lieblein, G., Salomonsson, L., Sriskandarajah, N., Wiedenhoeft, M., DeHaan, R., Braden, I. & Langer, Vibeke, 2011, In: Critical Reviews in Plant Sciences. 30, 1-2, p. 226-237 12 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    17. Published

      Transport is important in the carbon footprint of imported organic plant products

      Knudsen, M. T., Hui, Q. Y., Yan, L., de Almeida, G. F., Santiago de Abreu, L., Halberg, N. & Langer, Vibeke, 2011, In: ICROFS News. 2, p. 4-7 4 p.

      Research output: Contribution to journal › Journal article › Research

    18. 2010
    19. Published

      Energy efficiency of organic pear production in greenhouses in China

      Liu, Y., Jensen, H. H., Egelyng, H. & Langer, Vibeke, 2010, In: Renewable Agriculture and Food Systems (Print Edition). 25, 3, p. 196-203 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    20. Published

      Energy use in organic, green and conventional pear producing systems - cases from China

      Liu, Y., Langer, Vibeke, Jensen, H. H. & Egelyng, H., 2010, In: Journal of Sustainable Agriculture. 34, 6, p. 630-646 17 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    21. Published

      Life cycle assessment of fossil energy use and greenhouse gas emissions in Chinese pear production

      Liu, Y., Langer, Vibeke, Jensen, H. H. & Egelyng, H., 2010, In: Journal of Cleaner Production. 18, 14, p. 1423-1430 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    22. 2008
    23. Published

      Natur i landbrugslandskabet - samfundets forventninger til det økologiske jordbrug: kapitel 15

      Langer, Vibeke & Frederiksen, P., 2008, Udvikling, vækst og integritet i den danske økologisektor: vidensyntese om muligheder og barrierer for fortsat udvikling og markedsbaseret vækst i produktion, forarbejdning og omsætning af økologiske produkter. Alrøe, H. F. & Halberg, N. (eds.). Tjele: ICROFS, p. 449-461 13 p. (ICROFS-rapport; No. 1/2008).

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    24. Published

      Patterns of resource use on Danish organic farms: aspects of farm-based rural development

      Frederiksen, P. & Langer, Vibeke, 2008, In: International Journal of Agricultural Resources, Governance and Ecology. 7, 1/2, p. 96-109 14 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    25. Published

      Strukturudviklingen i økologisk jordbrug - "is small beatiful?"

      Langer, Vibeke & Frederiksen, P., 2008, Økologisk planteavlsberetning 2008. Økologisk Rådgivning, p. 10-12 3 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    26. Published

      Transdisciplinary research for a sustainable agriculture and food sector

      Francis, C. A., Liblein, G., Breland, T. A., Salomonsen, L., Geber, U., Sriskandarajah, N. & Langer, Vibeke, 2008, In: Agronomy Journal. 100, 3, p. 771-776 6 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    27. 2007
    28. Published

      Intercropping for pest management: the ecological concept

      Langer, Vibeke, Kinane, J. & Lyngkjær, M. F., 2007, Ecologically based integrated pest management. Koul, O. & Cuperus, G. W. (eds.). Wallingford: CABI Publishing, p. 74-109 36 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    29. Published

      Spatial focus of MSc and PhD agricultural research in Denmark, U.S., and Canada

      Langer, Vibeke, Rasmussen, Jesper & Francis, C., 2007, In: Journal of Sustainable Agriculture. 30, 2, p. 29-39 11 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    30. 2006
    31. Published

      Agroecology education and research: an academic platform for organic farming

      Francis, C., Breland, T. A., Lieblein, G., Moulton, M., Salomonsen, L., Geber, U., Langer, Vibeke, Sriskandarajah, N., Porter, John Roy & Helenius, J., 2006, Ikke angivet. Andreasen, C. B., Elsgaard, L., Søndergaard Sørensen, L. & Hansen, G. (eds.). Forskningscenter for Økologisk Jordbrug og Fødevaresystemer, 2 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    32. Published

      Bias in peer review of organic farming grant applications

      Rasmussen, Jesper, Langer, Vibeke & Alrød, H. F., 2006, In: Agriculture and Human Values. 23, 2, p. 181-188 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    33. Published

      Building research skills in agroecology: a case study for systems action research

      Lieblein, G., Francis, C., Breland, T. A., Salomonsen, L., Geber, U., Langer, Vibeke & Sriskandarajah, N., 2006. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research

    34. Published

      Creating a Nordic regional research network in agroecology: links to MSc education

      Francis, C., Breland, T. A., Lieblein, G., Salomonsen, L., Geber, U., Sriskandarajah, N., Langer, Vibeke, Porter, John Roy & Helenius, J., 2006, Changing European farming systems for a better future: New visions for rural areas. Langeveld, H. & Röling, N. (eds.). Wageningen Academic Publishers, p. 320-324 5 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    35. Published

      Research priorities in a coordinated nordic agroecology network

      Francis, C., Breland, T. A., Lieblein, G., Salomonsen, L., Geber, U., Langer, Vibeke, Sriskandarajah, N. & Helenius, J., 2006. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research

    36. Published

      Structural development in Danish agriculture and its implications for farmland nature

      Levin, G., Langer, Vibeke & Frederiksen, P., 2006, Changing European farming systems for a better future: new visions for rural areas : chapter 5. Langeveld, H. & Röling, N. (eds.). Wageningen: Wageningen Academic Publishers, p. 111-117 7 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    37. 2005
    38. Published

      A nordic net-based course in agroecology: integrating student learning and teacher collaboration

      Lieblein, G., Moulton, M., Sriskandarajah, N., Christensen, D., Waalen, W., Breland, T. A., Francis, C., Salomonsson, L. & Langer, Vibeke, 2005, In: European Journal of Open, Distance and E-Learning. 1, p. 89-103 15 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    39. Published

      Building the virtual into real exchanges - pilot experiences from LEAFSE, an EU-Australia exchange project

      Sriskandarajah, N. & Langer, Vibeke, 2005, Providing our graduates with a global perspective through real and virtual student exchange. Calderón-Peter, M. & Heath, S. (eds.). Interuniversity Consortium for Agricultural and Related Sciences in Europe (ICA), p. 143-153 11 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    40. Published

      Density, structure and management of landscape elements on Danish organic farms

      Frederiksen, P. & Langer, Vibeke, 2005, NJF-reports 1. Nordic Association of Agricultural Scientists (NJF), p. 157-160 4 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    41. Published

      Factors reducing yield of organic white clover seed production in Denmark

      Langer, Vibeke & Rohde, B., 2005, In: Grass and Forage Science. 60, 2, p. 168-174 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    42. Published

      Landmænds opfattelser af natur og aktuel naturkvalitet på bedriften: Cross cutting rapport for CC3

      Hansen, L., Noe, E., Langer, Vibeke, Ejrnæs, R., Tybirk, K. & Pedersen, M. B., 2005, Forskningscenter for Økologisk Jordbrug, p. 1-34, 35 p.

      Research output: Working paper › Research

    43. Published

      Livelihood strategies and human resource use on Danish organic farms

      Frederiksen, P. & Langer, Vibeke, 2005, Researching sustainable systems. Köpke, U., Niggli, U., Neuhoff, D., Cornish, P., Lockeretz, W. & Willer, H. (eds.). International Society of Organic Agriculture Research (ISOFAR), p. 617-620 4 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    44. Published

      Livelihood strategies on danish organic farms and their contribution to farm based rural development

      Frederiksen, P. & Langer, Vibeke, 2005. 11 p.

      Research output: Contribution to conference › Paper › Research

    45. Published

      The development of farm size on Danish organic farms - a comment to the conventionalisation debate

      Langer, Vibeke, Frederiksen, P. & Jensen, Jørgen Dejgård, 2005, Researching sustainable systems. Köpke, U., Niggli, U., Neuhoff, D., Cornish, P., Lockeretz, W. & Willer, H. (eds.). p. 1-5 5 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    46. 2004
    47. Published

      Localisation and concentration of organic farming in the 1990's: the danish case

      Frederiksen, P. & Langer, Vibeke, 2004, In: Tijdschrift voor Economische en Sociale Geographie. 95, 5, p. 539-549 11 p.

      Research output: Contribution to journal › Journal article › Research

    48. Published

      Nature management and livelihood on Danish organic farms

      Frederiksen, P. F. & Langer, Vibeke, 2004. 15 p.

      Research output: Contribution to conference › Paper › Research

    49. Published

      Økologiske landmænd fordeler sig ujævnt i Danmark

      Frederiksen, P. & Langer, Vibeke, 2004, In: FØJOenyt. 3, 9 p.

      Research output: Contribution to journal › Journal article › Research

    50. 2003
    51. Published

      Biodiversitet og naturkvalitet

      Tybirk, K., Elmegaard, N., Ejrnæs, R., Langer, Vibeke & Holmstrup, M., 2003, Økologisk landbrug og naturen: Gør økologisk landbrug en forskel for natur og miljø?. Holmstrup, M. (ed.). København: Gad, p. 33-42 9 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    52. Published

      Ecological and economic effects of conversion to organic agriculture in Denmark - an interdisciplinary system simulation analysis at local scale

      Hasler, B., Dalgaard, T., Elmegaard, N., Heidmann, T., Langer, Vibeke, Mogensen, L. & Odderskær, P., 2003. 9 p.

      Research output: Contribution to conference › Paper › Research

    53. Published

      Om muligheden for at intentionerne i Formas økologiske forskningsprogram opfyldes gennem de bevilgede projekter

      Langer, Vibeke & Rasmussen, Jesper, 2003, In: Centrum för uthålligt lantbruk. 6 p.

      Research output: Contribution to journal › Journal article › Research

    54. 2002
    55. Published

      Changes in farm structure following conversion to organic farming in Denmark

      Langer, Vibeke, 2002, In: Renewable Agriculture and Food Systems (Print Edition). 17, 2, p. 75-82 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    56. 2001
    57. Published

      The potential of leys and short rotation coppice hedges as reservoirs for parasitoids of cereal aphids in organic agriculture

      Langer, Vibeke, 2001, In: Agriculture, Ecosystems & Environment. 87, p. 81-92 12 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    58. 2000
    59. Published

      Conversion to organic farming: estimated effects on environment and nature based on existing farm data from a study area

      Langer, Vibeke, Odderskær, P., Heidmann, T., Dalgaard, T. & Mogensen, L., 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    60. Published

      Sustainability and biological interactions in a combined food and energy cropping system

      de Neergaard, Andreas, Langer, Vibeke, Kuemmel, B., Føreid, B. & Porter, John Roy, 2000. 1 p.

      Research output: Contribution to conference › Paper › Research

    61. 1999
    62. Published

      Det ¤økologiske jordbrugs natur

      Langer, Vibeke, 1999, Ikke angivet. Secher, K., Brogaard, L. W. & Thorsted, L. (eds.). National Environmental Research Institute, p. 51 1 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    63. 1998
    64. Published

      Effects of conversion to organic farming on Danish agricultural landscapes

      Langer, Vibeke, 1998, Landskabsøkologiske skrifter. Agger, P., Bjerregaard, R. & Brandt, J. (eds.). 11 ed. Roskilde University, p. 311-319 9 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    65. Published

      Energetic, economic and ecological balances of a combined food and energy system

      Kuemmel, B., Langer, Vibeke, Magid, Jakob, de Neergaard, Andreas & Porter, John Roy, 1998, In: Biomass & Bioenergy. (4/5), p. 407-416 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    66. 1997
    67. Published

      The ¤use of single-species spatially explicit models

      Topping, C. J., Booij, K., Daamen, R. A., Dinter, A., Heimbach, U., Kennedy, P. J., Langer, Vibeke, Perry, J. N., Powell, W., Skirvin, D., Stilmant, D., Thomas, C. F. G. & Winstone, L., 1997, Ikke angivet. W. Powell (ed.). Aarhus Universitetsforlag, p. 171-191 21 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    68. Published

      Ændringer i landbrugslandskabet ved omlægning til økologisk jordbrug

      Langer, Vibeke, 1997, Landskabsøkologiske skrifter. Brandt, J. . . A. . (ed.). 6 ed. Center for Landskabsforskning, Roskilde Universitet, p. 31-43 13 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

    69. 1996
    70. Published

      Insect-crop interactions in a diversified cropping system: parasitism by Aleochara bilineata and Trybliographa rapae of the cabbage root fly, Delia radicum, on cabbage in the presence of white clover

      Langer, Vibeke, 1996, In: Entomologia Experimentalis et Applicata. 80, p. 365-374 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    71. 1995
    72. Published

      Entomopathogenic fungi in predatory beetles (Col. Carabidae and Staphylinidae) from agricultural fields

      Steenberg, T., Langer, Vibeke & Esbjerg, Peter, 1995, In: BioControl. 40, 1, p. 77-85 9 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    ID: 4224046