Sympatrically breeding species may face intense competition for resources, which can lead to various forms of segregation to mitigate competitive pressures. Segregation of space or habitats is one possible strategy, particularly when species share similar diets and foraging behaviors. This study examines the differences in space and habitat use between Antarctic and Snow Petrels (Thalassoica ...

The Arctic is rapidly warming and this increase in temperature has been found to drive range expansion of tall shrubs in the Arctic tundra ecosystems. Although the consequences of shrub expansion have been studied in the terrestrial tundra, effects on tundra stream ecosystems remain understudied. Riparian tall shrubs, such as willows, can provide stream ecosystems with leaf litter and shade, enhancing ...

Ringed seals (Pusa hispida) in Svalbard, Norway, are thought to be declining due to the impacts of climate change in the region, particularly due to a significant reduction in the extent of landfast sea ice that they rely on for breeding. The only available survey of ringed seals in Svalbard took place in 2002, so is now over twenty years old. Here, we address this data gap by conducting UAV aerial ...

Norske kommuner foretok innkjøp for mer enn 240 milliarder kroner i 2022. Disse innkjøpene reguleres av lov om offentlige anskaffelser, som blant annet har som formål å fremme effektiv bruk av samfunnets ressurser. Denne målsetningen operasjonaliseres gjennom et omfattende regelverk som inneholder bestemte prosedyrer for hvordan det offentliges innkjøp skal gjennomføres. Dersom regelverket brytes, ...

Oppgaven omhandler å skape et grunnlag for strategiutvikling i teknologibransjer. En av byggeklossene i strategiutvikling er konkurransekrefter. Etter at Porter’s Five Forces ble publisert på 1980-tallet har betydningen og valg av konkurransekrefter vært diskutert. Temaet er fortsatt aktuelt i dag. Hvilke konkurransekrefter er det som er med på å påvirke en teknologibransje i dagens globaliserte ...

Policy makers and researchers are increasingly emphasising the need for more diversified and localised food systems. This study investigates relations between local food systems and community development, revealing how local food is linked with identity, social relations, and community pride. We also address barriers and enablers for developing such links. We conducted an in-depth case study of local ...

Plastic pollution threatens many organisms around the world. In particular, the northern fulmar, Fulmarus glacialis, is known to ingest high quantities of plastics. Since data are sparse in the Eurasian Arctic, we investigated plastic burdens in the stomachs of fulmar fledglings from Kongsfjorden, Svalbard. Fifteen birds were collected and only particles larger than 1 mm were extracted, characterised ...

Our understanding of the environmental behavior, bioaccumulation and concentrations of chlorinated paraffins (CPs) and Dechloranes (Dec) in the Arctic environment is still limited, particularly in freshwater ecosystems. In this descriptive study, short chain (SCCPs) and medium chain (MCCPs) CPs, Dechlorane Plus (DP) and analogues, and polychlorinated biphenyls (PCBs) were measured in sediments, ...

Havforskningsinstituttet skal gi råd og kunnskapsgrunnlag for kvotefastsetting og regulering av fisket på kongekrabbe til forvaltningsmyndighetene. <p> <p>Hensikten med toktet var å kartlegge bestanden av kongekrabbe i kvoteregulert område i Øst-Finnmark. Toktet inngår i en lang tidsserie som danner grunnlaget for den årlige kvoteanbefalingen og overvåkningen av utviklingen i kongekrabbebestanden.

Passive Acoustic Monitoring (PAM) is a non-invasive method providing high- resolution information about marine mammal acoustic presence. Multi-species PAM studies can increase our understanding of temporal changes in species diversity and assemblage and is especially useful in remote areas such as the Southern Ocean. This study was based on 16 months of acoustic data spanning two austral autumns and ...