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 ...

This project explores the potentials and barriers of cycling tourism in the Arctic region of Tromsø and Finnmark. The objective is to present different perspectives in relation to a future development of cycling tourism in the area: the cycling tourist/users perspective, tourism stakeholders and administrators. To achieve these objectives three main methods have been employed: a qualitative survey ...

The link between educational attainment and multiple health behaviours has been explained in various ways. This paper provides new insights into the social patterning in health behaviours by investigating the influence of parents' and partners' educational attainments on a composite indicator that integrates the four commonly studied lifestyle behaviours (smoking, alcohol, physical activity and BMI). ...

Understanding methane flux dynamics in Arctic cold seep systems and the influence of oceanic currents on microbial methane-oxidizing bacteria (MOB) is crucial for assessing their impact on Arctic methane emissions. Here, we investigate methane dynamics and associated microbial communities at two cold seep areas, Norskebanken and Hinlopen Trough, North of Svalbard. Methane concentrations and methane ...

Norway has set itself ambitious goals for the green transitioning of its transport. Intermodal mobility, meaning the integration of two or more green modes of transportation to use the advantages of each mode, has been put forward as a theoretical competitor to undesirable car transportation. The process of integration requires infrastructures to accommodate commuters’ needs and make sustainable ...

Fine-grained muds produced largely from rock weathering at the Earth’s surface have great influence on global carbon cycling. Mud binds and protects organic carbon (OC) from remineralization, and its organic loading controls the amounts, timescales and pathways of OC sequestration in sediments and soils. Human activities have resulted in marked changes (both increases and decreases) in mud accumulation ...