Projects per year
Personal profile
Research
I am an animal ecologist and my research is focused on waterbirds and the ecosystems where they occur. The research is done within my network, which nationally includes researches at Kristianstad University and Linnaeus University, and internationally with researchers at universities in Finland and France.
Currently, my research is mainly within the project Effects of large herbivorous waterfowl in aquatic ecosystems, financed by the Swedish Environmental Protection Agency, and for which I am the project leader. The project aims at studying the role of geese and swans in wetlands. The background is that several species, for example greylag goose and whooper swan, have increased dramatically in recent decades. Wetlands have undergone changes too, for example in the composition of plant and animal communities, but also seen as increased eutrophication and browning. That geese and swans are supposed to have important roles in wetlands have several reasons, but is mainly due to the fact that vegetation has a central function in theses aquatic ecosystems, for example affecting nutrient cycling and state shifting (clear-water versus turbid state). Geese and swans are pure vegetarians and need to consume large amounts of food to sustain their energy needs, in fact up to one third of their body mass every day. Since they are heavy birds, it is expected that the grazing pressure may be substantial, especially if bird numbers are high. This will be studied in several ways, for example by protecting vegetation from grazing by fencing, and by comparing vegetation in such fenced areas with those where geese and swan grazing occurs.
If you have any questions about my research, teaching or related topics, do not hesitate to contact me.
Teaching
At Kristianstad University I teach mainly in ecology and methodology.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Swedish Standard Keywords
- Ecology (10611)
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Collaborations and top research areas from the last five years
Projects
- 1 Active
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Effects of large herbivorous waterfowl in aquatic ecosystems
Gunnarsson, G. (PI) & Kjeller, E. (Doctoral student)
21-04-01 → 26-07-09
Project: Research
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Doctoral Students at Small Institutions – Challenges and Possibilities
Gunnarsson, G., 2024-Oct-22, Högskolepedagogisk debatt, 2024, 2, p. 73-82 10 p.Research output: Contribution to specialist publication › Article
Open AccessFile2 Downloads (Pure) -
Herbivory on aquatic macrophytes by geese and swans: a review of methods, effects, and management
Kjeller, E., Waldenström, J., Elmberg, J. & Gunnarsson, G., 2024-Aug-08, In: Ornis Svecica. 34, p. 119-137 19 p.Research output: Contribution to journal › Review article › peer-review
Open AccessFile38 Downloads (Pure) -
Local movements of farmed-released versus wild mallards Anas platyrhynchos in fall
Söderquist, P., Elmberg, J., Einarson, D. & Gunnarsson, G., 2024-Feb-27, In: Wildlife Biology. 5, e01259.Research output: Contribution to journal › Article › peer-review
Open AccessFile3 Citations (Scopus)6 Downloads (Pure) -
The hub of the wheel or hitchhikers? The potential influence of large avian herbivores on other trophic levels in wetland ecosystems
Gunnarsson, G., Kjeller, E., Holopainen, S., Djerf, H., Elmberg, J., Pöysä, H., Söderquist, P. & Waldenström, J., 2024-Jan-01, In: Hydrobiologia. 851, 1, p. 107-127 21 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile12 Downloads (Pure) -
Hur påverkas våtmarker av ökande populationer av gäss och svanar?
Gunnarsson, G. & Kjeller, E., 2023, Anser: Skånes ornitologiska förening, 2023, 4, p. 7-12.Research output: Contribution to specialist publication › Article
Datasets
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Effects of released farmed mallards on species richness of breeding waterbirds and amphibians in natural, restored, and constructed wetlands
Söderquist, P. (Creator), Dessborn, L. (Creator), Djerf, H. (Creator), Elmberg, J. (Creator), Gunnarsson, G. (Creator) & Holopainen, S. (Creator), Dryad, 2021-Sept-01
Dataset
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Admixture between released and wild game birds: a changing genetic landscape in European mallards (Anas platyrhynchos)
Söderquist, P. (Creator), Elmberg, J. (Creator), Gunnarsson, G. (Creator), Thulin, C.-G. (Creator), Champagnon, J. (Creator), Guillemain, M. (Creator), Kreisinger, J. (Creator), Prins, H. H. S. (Creator), Crooijmans, R. P. M. A. (Creator) & Kraus, R. H. S. (Creator), Dryad, 2017-Dec-05
DOI: 10.5061/dryad.74gd7
Dataset
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Wild mallards have more “goose-like” bills than their ancestors: a case of anthropogenic influence?
Söderquist, P. (Creator), Norrström, J. (Creator), Elmberg, J. (Creator), Guillemain, M. (Creator) & Gunnarsson, G. (Creator), figshare, 2015-Dec-02
DOI: 10.1371/journal.pone.0115143.s001
Dataset
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Fakta och forskning om gäss
Gunnarsson, G. (Speaker) & Elmberg, J. (Speaker)
2024-Nov-14Activity: Talk or presentation › Oral presentation
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Vad är gässens och svanarnas roll i akvatiska ekosystem?
Gunnarsson, G. (Speaker) & Kjeller, E. (Keynote speaker)
2024-Feb-26Activity: Talk or presentation › Oral presentation
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Effekter av stora herbivora andfåglar i akvatiska ekosystem
Gunnarsson, G. (Speaker) & Kjeller, E. (Keynote speaker)
2023-Jan-27Activity: Talk or presentation › Oral presentation
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Andfåglar – I vått och torrt
Gunnarsson, G. (Speaker)
2022-Nov-15Activity: Talk or presentation › Oral presentation
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Effekter av stora herbivora andfåglar i akvatiska ekosystem
Elmberg, J. (Deputy supervisor), Gunnarsson, G. (First/primary/Lead supervisior), Söderquist, P. (Deputy supervisor) & Waldenström, J. (Deputy supervisor)
2021-Apr → 2025Activity: Examination and supervision › Supervision
Press/Media
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Effekter av stora herbivora andfåglar i akvatiska ekosystem
21-03-10
1 Media contribution
Press/Media: Radio