Browsing NILU Brage by Author "Bourgeon, Sophie"
Now showing items 1-12 of 12
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Anti-parasite treatment and blood biochemistry in raptor nestlings
Hanssen, Sveinn Are; Sonne, Christian; Bustnes, Jan Ove; Schnug, Lisbeth; Bourgeon, Sophie; Ballesteros, Manuel; Eulaers, Igor; Moum, Truls Borg; Johnsen, Trond Vidar; Kjelgaard-Hansen, Mads; Herzke, Dorte; Jaspers, Veerle; Covaci, Adrian; Eens, Marcel; Halley, Duncan John; Erikstad, Kjell Einar; Ims, Rolf Anker (Journal article; Peer reviewed, 2017)We investigated the effects of parasite removal on various blood clinical–chemical variables (BCCVs). BCCVs are indicators of health, reflecting, e.g., homeostasis of liver, kidney function, and bone metabolism. The study ... -
Antiparasite treatments reduce humoral immunity and impact oxidative status in raptor nestlings
Hanssen, Sveinn Are; Bustnes, Jan Ove; Schnug, Lisbeth; Bourgeon, Sophie; Johnsen, Trond Vidar; Ballesteros, Manuel; Sonne, Christian; Herzke, Dorte; Eulaers, Igor; Jaspers, Veerle; Covaci, Adrian; Eens, Marcel; Halley, Duncan John; Moum, Truls Borg; Ims, Rolf Anker; Erikstad, Kjell E (Journal article; Peer reviewed, 2013) -
Can plastic related chemicals be indicators of plastic ingestion in an Arctic seabird?
Collard, France; Tulatz, Felix; Harju, Mikael; Herzke, Dorte; Bourgeon, Sophie; Gabrielsen, Geir Wing (Peer reviewed; Journal article, 2024)For decades, the northern fulmar (Fulmarus glacialis) has been found to ingest and accumulate high loads of plastic due to its feeding ecology and digestive tract morphology. Plastic ingestion can lead to both physical and ... -
The challenges of opportunistic sampling when comparing prevalence of plastics in diving seabirds: A multi-species example from Norway
Benjaminsen, Stine Charlotte; Dehnhard, Nina; Herzke, Dorte; Johnsen, Arild; Anker-Nilssen, Tycho; Bourgeon, Sophie; Collard, France; Langset, Magdalene; Christensen-Dalsgaard, Signe; Gabrielsen, Geir W. (Peer reviewed; Journal article, 2024)There is a need for baseline information about how much plastics are ingested by wildlife and potential negative consequences thereof. We analysed the frequency of occurrence (FO) of plastics >1 mm in the stomachs of five ... -
Contaminants in Atlantic walruses Part 2: Relationships with endocrine and immune systems
Routti, Heli; Diot, Beatrice; Panti, Cristina; Duale, Nur; Fossi, Maria Cristina; Harju, Mikael; Kovacs, Kit M.; Lydersen, Christian; Scotter, Sophie; Villanger, Gro Dehli; Bourgeon, Sophie (Journal article; Peer reviewed, 2018) -
Ecosystem specific accumulation of organohalogenated compounds: A comparison between adjacent freshwater and terrestrial avian predators
Bustnes, Jan Ove; Bårdsen, Bård-Jørgen; Herzke, Dorte; Bangjord, Georg; Bourgeon, Sophie; Fritsch, Clémentine; Eulaers, Igor (Peer reviewed; Journal article, 2022)Insight into processes determining the exposure of organohalogenated contaminants (OHCs) in wildlife might be gained from comparing predators in different ecosystems. This study compared two avian predator species with ... -
Feathers as integrated archives of environmental stress: Direct and indirect effects of metal exposure and dietary ecology on physiological stress in a terrestrial raptor
Hansen, Elisabeth; Bustnes, Jan Ove; Herzke, Dorte; Bangjord, Georg; Ballesteros, Manuel; Bårdsen, Bård-Jørgen; Bollinger, Eric; Schulz, Ralf; Eulaers, Igor; Bourgeon, Sophie (Peer reviewed; Journal article, 2024)Metal pollution is a global environmental issue with adverse biological effects on wildlife. Long-term studies that span declines in metal emissions due to regulation, resulting in varying levels of environmental contamination, ... -
First documentation of plastic ingestion in the arctic glaucous gull (Larus hyperboreus)
Benjaminsen, Stine Charlotte; Bourgeon, Sophie; Herzke, Dorte; Ask, Amalie; Collard, France; Gabrielsen, Geir Wing (Peer reviewed; Journal article, 2022)Arctic wildlife is facing multiple stressors, including increasing plastic pollution. Seabirds are intrinsic to marine ecosystems, but most seabird populations are declining. We lack knowledge on plastic ingestion in many ... -
The impact of climate sensitive factors on the exposure to organohalogenated contaminants in an aquatic bird exploiting both marine and freshwater habitats
Bustnes, Jan Ove; Bårdsen, Bård-Jørgen; Herzke, Dorte; Bangjord, Georg; Bollinger, Eric; Bourgeon, Sophie; Schulz, Ralf; Fritsch, Clémentine; Eulaers, Igor (Peer reviewed; Journal article, 2022)To assess how climate-sensitive factors may affect the exposure to organochlorines (OCs) and perfluoroalkyl substances (PFASs), we monitored concentrations in eggs of the common goldeneye (Bucephala clangula) over two ... -
Implications of Regurgitative Feeding on Plastic Loads in Northern Fulmars (Fulmarus glacialis): A Study from Svalbard
Tulatz, Felix; Gabrielsen, Geir Wing; Bourgeon, Sophie; Herzke, Dorte; Krapp, Rupert; Langset, Magdalene; Neumann, Svenja; Lippold, Anna; Collard, France (Peer reviewed; Journal article, 2023)Procellariiform seabirds like northern fulmars (Fulmarus glacialis) are prone to ingest and accumulate floating plastic pieces. In the North Sea region, there is a long tradition to use beached fulmars as biomonitors for ... -
A novel use of the leukocyte coping capacity assay to assess the immunomodulatory effects of organohalogenated contaminants in avian wildlife
Hansen, Elisabeth; Huber, Nikolaus; Bustnes, Jan O.; Herzke, Dorte; Bårdsen, Bård-Jørgen; Eulaers, Igor; Johnsen, Trond V.; Bourgeon, Sophie (Peer reviewed; Journal article, 2020)Apex predators are characterized by high levels of biomagnifying organohalogenated contaminants (OHCs) which have been found to induce detrimental health effects in wildlife, such as immune system impairment. The leukocyte ... -
Temporal Trends of Organochlorine and Perfluorinated Contaminants in a Terrestrial Raptor in Northern Europe Over 34 years (1986–2019)
Bustnes, Jan Ove; Bårdsen, Bård-Jørgen; Herzke, Dorte; Bangjord, Georg; Bourgeon, Sophie; Fritsch, Clémentine; Eulaers, Igor (Peer reviewed; Journal article, 2022)Fourteen legacy organochlorine (OC) contaminants and 12 perfluoroalkyl substances (PFASs) were measured in eggs of tawny owls (Strix alueco) in central Norway (1986–2019). We expected OCs to have reached stable equilibrium ...