Brage Bremset Hansen
Bakgrunn og aktiviteter
Arbeidssted
Centre for Biodiversity Dynamics (CBD) http://www.ntnu.edu/cbd
Institutt for biologi, NV-fakultetet, NTNU
Interessefelt
Populasjonsøkologi, populasjonsdynamikk, bestandsdynamikk, samfunnsøkologi, samfunnsdynamikk, adferdsøkologi, populasjonsgenetikk, ancient DNA, trofiske interaksjoner (f.eks. plante-herbivor-interaksjoner), klimaendringer, klimaeffekter, Arktis, Svalbard, svalbardrein, hvitkinngås, fjellrev, demografisk modellering.
Forskning
Leder for forskningsgruppa Dynamics of Arctic Ecosystems, som er en del av Community Dynamics ved CBD. Prosjektleder for "Community dynamics in a rapidly warming high Arctic: trophic synchrony in time and space (INSYNC)", finansiert av Norges forskningsråd (FRIPRO) i perioden 2018-2021. Målet med prosjektet er å undersøke hvordan klimaendringer påvirker romlig og temporær samfunnsdynamikk - på tvers av arter og trofiske nivå - på svalbardtundraen. Prosjektpartnere er Univ. Groningen, Univ. Aberdeen, Univ. Iceland, CNRS Montpellier, Meteorologisk institutt, Universitetssenteret på Svalbard (UNIS). Følg prosjektet på twitter, youtube og ResearchGate.
Vitenskapelig, faglig og kunstnerisk arbeid
Et utvalg av nyere tidsskriftspublikasjoner, kunstneriske produksjoner, bok, inklusiv bokdeler og rapport-del. Se alle publikasjoner i databasen
Tidsskriftspublikasjoner
- (2020) High-Arctic family planning: earlier spring onset advances age at first reproduction in barnacle geese. Biology Letters. vol. 16 (4).
- (2019) Spatiotemporal patterns of rain-on-snow and basal ice in high Arctic Svalbard: detection of a climate-cryosphere regime shift. Environmental Research Letters. vol. 14.
- (2019) More frequent extreme climate events stabilize reindeer population dynamics. Nature Communications. vol. 10 (1).
- (2019) Reindeer turning maritime: Ice-locked tundra triggers changes in dietary niche utilization. Ecosphere. vol. 10 (4).
- (2019) Spatial heterogeneity in climate change effects decouples the long‐term dynamics of wild reindeer populations in the high Arctic. Global Change Biology. vol. 25 (11).
- (2019) Contrasting consequences of climate change for migratory geese: Predation, density dependence and carryover effects offset benefits of high‐arctic warming. Global Change Biology.
- (2019) Density‐dependent population dynamics of a high Arctic capital breeder, the barnacle goose. Journal of Animal Ecology. vol. 88 (8).
- (2019) A Century of Conservation: The Ongoing Recovery of Svalbard Reindeer. Journal of Wildlife Management. vol. 83 (8).
- (2019) Sea ice loss increases genetic isolation in a high Arctic ungulate metapopulation. Global Change Biology. vol. 26 (4).
- (2018) A new NDVI measure that overcomes data sparsity in cloud-covered regions predicts annual variation in ground-based estimates of high arctic plant productivity. Environmental Research Letters. vol. 13.
- (2018) Annual ring growth of a widespread high arctic shrub reflects past fluctuations in community‐level plant biomass. Journal of Ecology. vol. 107 (1).
- (2017) Contrasting effects of summer and winter warming on body mass explain population dynamics in a food-limited Arctic herbivore. Global Change Biology. vol. 23 (4).
- (2017) Cratering behaviour and faecal C:N ratio in relation to seasonal snow-pack characteristics in a High-Arctic ungulate. Polar Research. vol. 36 (1).
- (2017) Ungulate population monitoring in an open tundra landscape: distance sampling versus total counts. Wildlife Biology. vol. 2017.
- (2017) Climate and density dependence cause changes in adult sex ratio in a large Arctic herbivore. Ecosphere. vol. 8 (2).
- (2016) Demographic buffering of life histories? Implications of the choice of measurement scale. Ecology. vol. 97 (1).
- (2016) Behavioral buffering of extreme weather events in a high-Arctic herbivore. Ecosphere. vol. 7 (6).
- (2016) Experimental icing affects growth, mortality, and flowering in a high Arctic dwarf shrub. Ecology and Evolution. vol. 6 (7).
- (2016) Changes in greening in the high Arctic: Insights from a 30 year AVHRR max NDVI dataset for Svalbard. Environmental Research Letters. vol. 11 (10).
- (2015) An integrated population model for a long-lived ungulate: more efficient data use with Bayesian methods. Oikos. vol. 124 (6).