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Publications

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Holm, T. E. (2026). Rød glente, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A112, vers. 4 https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA112RoedGlente_v4.pdf
Laursen, K., Bregnballe, T. & Thorup, O. (2026). Saltvandssøen – hvorfor er det gået så godt? Dansk Ornitologisk Forenings Tidsskrift, 120(1), 4-6.
Bregnballe, T. & Holm, T. E. (2026). Skestork, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A106, vers. 4 https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA106_Skestork_v4.pdf
Holm, T. E. & Balsby, T. J. S. (2026). Sortspætte, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A171, vers. 3 https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA171_sortspaette_v3.pdf
Holm, T. E. (2026). Stor hornugle, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A162, vers. 3 https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA162StorHornugleV3.pdf
Holm, T. E. & Thorup, O. (2026). Stor kobbersneppe, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A140, vers. 3 https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA140StorKobbersneppe_v3.pdf
Bregnballe, T. & Holm, T. E. (2026). Tejst, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A184, vers. 3 https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA184_Tejst_v3.pdf
Holm, T. E. & Balsby, T. J. S. (2026). Trane, overvågning af ynglefugle. Aarhus University, DCE - Danish Centre for Environment and Energy. DCE, Teknisk anvisning fra Fagdatacenter for Biodiversitet og Terrestrisk Natur No. A128, vers. 4. https://ecos.au.dk/fileadmin/ecos/Fagdatacentre/Biodiversitet/TAA128Trane_v4.pdf
Koffijberg, K., Baumung, S., Bregnballe, T., Enners, L., Frikke, J., Gnep, B., Hansen, M. B., Müller, G. & Packmor, F. (2026). Trends of Breeding Birds in the Wadden Sea 1991-2023 and results of the total count in 2018. Zenodo. https://doi.org/10.5281/zenodo.18326676
Nielsen, R. D., Sterup, J., Bregnballe, T., Nyegaard, T., Amstrup, O., Clausen, P., Pedersen, C. L., Nielsen, H. H. & Heldbjerg, H. (2026). Udviklingen i forekomsten af Sølvhejre i Danmark. Dansk Ornitologisk Forenings Tidsskrift, 120(2), 49-61.
Potts, J. R., Börger, L., Tucker, M. A., Ossi, F., Yanco, S. W., Ellis-Soto, D., Müller, T., Oliver, R. Y., Alves, M. H., Arnold, W., Attias, N., Bastille-Rousseau, G., Belant, J. L., Blount, J. D., Beyer, D. E., Cagnacci, F., Chamaillé-Jammes, S., Chan, A. N., Cole, E. K. ... Rutz, C. (2026). Understanding mammal avoidance of human settlements. Journal of Animal Ecology. Advance online publication. https://doi.org/10.1111/1365-2656.70298
Bregnballe, T., Lundström, K., Søndergaard, F. M., Sterup, J. & Holm, T. E. (2026). Using drones to monitor nest numbers and breeding success in cormorant colonies. Poster session presented at 11th International Conference on Cormorants, Prague, Czech Republic.
Fleet, F. A. & Bregnballe, T. (2026). Using long-term cormorant diet data to understand fish–bird interactions. Poster session presented at 11th International Conference on Cormorants, Prague, Czech Republic.
Teitelbaum, C. S., Prosser, D. J., Ackerman, J. T., Ahmed, S., Alam, A. B. M. S., Azmiri, K. Z., Batbayar, N., Bêty, J., Blake-Bradshaw, A., Boiko, D., Buitendijk, N. H., Buler, J. J., Cabot, D., Casazza, M. L., Cohen, B., Davaasuren, B., Farau, S., Feddersen, J., Fieberg, J. ... De La Cruz, S. E. W. (2026). Waterfowl Move Less in Heterogeneous and Human-Populated Landscapes, With Implications for Spread of Avian Influenza Viruses. Ecology Letters, 29(1), Article e70265. https://doi.org/10.1111/ele.70265
Veenbrink, W., Zimmermann, B., Sand, H., Wikenros, C., Wabakken, P. & Mayer, M. (2026). Wolves on ice: habitat use and selection of water bodies by wolves during winter. Animal Behaviour, 231, Article 123401. https://doi.org/10.1016/j.anbehav.2025.123401
Olsen, K. & Sunde, P., (2025). Antallet af ulve i Danmark: Oktober 2012-februar 2025, 20 p., Fagligt notat fra DCE – Nationalt Center for Miljø og Energi (2020-...) Vol. 2025 No. 26 https://dce.au.dk/fileadmin/dce.au.dk/Udgivelser/Notater_2025/N2025_26.pdf
Kjær, C., Brunbjerg, A. K., Hansen, R. R., Boel, M., Mortensen, R. M., Møller, J. D. & Mikkelsen, P. (2025). Arter 2023-2024: NOVANA. Aarhus University, DCE - Danish Centre for Environment and Energy. Videnskabelig rapport fra DCE - Nationalt Center for Miljø og Energi No. 686 https://dce.au.dk/fileadmin/dce.au.dk/Udgivelser/Videnskabelige_rapporter_600-699/SR686.pdf
Sunde, P., Træholt, A. R. & Jacobsen, L. B., (2025). Bestandsudvikling, ynglesucces og fødesøgningsadfærd hos kirkeugler 2021-2024 i forhold til bestandsgenoprettende tiltag, 26 p., Fagligt notat fra DCE – Nationalt Center for Miljø og Energi (2020-...) Vol. 2025 No. 20 https://dce.au.dk/fileadmin/dce.au.dk/Udgivelser/Notater_2025/N2025_20.pdf
Bregnballe, T., Søgaard-Hansen, J. & Jørgensen, M. F. (2025). Bramgås Branta leucopsis (yngleforekomst). In P. Lange (Ed.), Fugleåret 2024 (Vol. 19, pp. 22-23). Dansk Ornitologisk Forening.
Fox, A. D., Walsh, A. J., Stroud, D. A., Francis, I. S., Norriss, D. W., Wilson, H. J., Kelly, S. B., Schindler, A. R. & Weegman, M. D. (2025). Can the Greenland White-fronted Goose be saved? British Birds, 118(9), 431-445. https://www.britishbirds.co.uk/journal/article/can-greenland-white-fronted-goose-be-saved
Kleefstra, R., Bregnballe, T., Frikke, J., Behm, K., Günther, K., Hälterlein, B., Hansen, M. B., Hornman, M., Meyer, J. & Scheiffarth, G. (2025). Change in migrating and wintering waterbirds in the Wadden Sea. In M. van Roomen, J. Reneerkens, G. Citegetse, O. Crowe, K. Gueye, T. Langendoen, T. Dodman, K. Meise & H. Schekkerman (Eds.), East Atlantic Flyway Assessment 2023: The status of coastal waterbird populations and their sites (pp. 55-65) https://doi.org/10.5281/zenodo.15355685
Laursen, K., van Beusekom, J. E. E., Bregnballe, T., Kleefstra, R., Frikke, J., Günther, K., Hälterlein, B., Hornman, M., Ludwig, J., Meyer, J., Scheiffarth, G., Pedersen, C. L. & Møller, A. P. (2025). Climate and de-eutrophication affect abundance of benthos-feeding waterbirds in the Wadden Sea during stop-over. Marine Biodiversity, 55(4), Article 66. https://doi.org/10.1007/s12526-025-01554-9
Fox, A. D. (2025). Cold realities: exploring the ecological consequences of global warming on Arctic goose populations. Abstract from Goose Specialist Group Conference, Mušov, Czech Republic.
Bernardi, C. D., Chapron, G., Kaczensky, P., Álvares, F., Andrén, H., Balys, V., Blanco, J. C., Chiriac, S., Ćirović, D., Drouet-Hoguet, N., Huber, D., Iliopoulos, Y., Kojola, I., Krofel, M., Kutal, M., Linnell, J. D. C., Skrbinšek, A. M., Männil, P., Marucco, F. ... Boitani, L. (2025). Continuing recovery of wolves in Europe. PLOS Sustainability and Transformation, 4(2 February), Article e0000158. https://doi.org/10.1371/journal.pstr.0000158
Thomsen, H. M., Nielsen, R. D., Sterup, J., Pedersen, C. L., Bregnballe, T. & Clausen, P. (2025). Danish waterbird monitoring: Towards estimating total annual abundance from reduced site networks. Poster session presented at Bird Numbers 2025: Synergies in monitoring for conservation. 23rd conference of the European Bird Census Council
, Riga, Latvia.
Sterup, J. & Bregnballe, T. (2025). Danmarks ynglebestand af skarver i 2024. Aarhus University, DCE - Danish Centre for Environment and Energy. Teknisk rapport fra DCE - Nationalt Center for Miljø og Energi Vol. 2025 No. 328 https://dce.au.dk/fileadmin/dce.au.dk/Udgivelser/Tekniske_rapporter_300-349/TR328.pdf
Sterup, J. & Bregnballe, T. (2025). Danmarks ynglebestand af skarver i 2025. Aarhus University, DCE - Danish Centre for Environment and Energy. Teknisk rapport fra DCE - Nationalt Center for Miljø og Energi Vol. 2025 No. 360 https://dce.au.dk/fileadmin/dce.au.dk/Udgivelser/Tekniske_rapporter_350-400/TR360.pdf