Diet studies are essential to understand animal ecology and ecosystem dynamics, especially in the case of large omnivores. These studies are particularly relevant in areas where human disturbance is intense and, thus, species dietary patterns might change due to the easy accessibility of food resources of human origin, which may hinder the ecosystem services these species provide. We assessed the ...

Being the most common human-created landforms, terrace construction has resulted in an extensive perturbation of the land surface. However, our mechanistic understanding of soil organic carbon (SOC) (de-)stabilization mechanisms and the persistence of SOC stored in terraced soils is far from complete. Here we explored the factors controlling SOC stability and the temperature sensitivity (<i>Q</i>< ...

The northernmost parts of Europe has a large number of sites with Stone Age house-pits, the majority of which date from c. 5000 BC onwards. Remarkably, the remains of these dwellings are many places still visible on the surface. In northern Norway, such dwellings concentrate in the coastal areas, with a more limited number found on inland sites. In order to use these in analyses of settlement duration, ...

Species breeding at high latitudes face a significant challenge of surviving the winter. Such conditions are particularly severe for diurnal marine endotherms such as seabirds. A critical question is therefore what behavioural strategies such species adopt to maximise survival probability. We tested 3 hypotheses: (1) they migrate to lower latitudes to exploit longer day length (‘sun-chasing’), (2) ...

We present an updated survey of the Amphipoda that live in association with sea anemones. These amphipods can be divided into four groups: 1) symbiotic amphipods using sea anemones mainly for protection, but feeding largely independently; 2) amphipods feeding on sea anemones, but not permanently associated; 3) symbiotic amphipods living permanently among the tentacles of the sea anemones; and 4) ...

Two Norwegian uristid amphipods, obligate associates of sea anemones, have for a long time been confused sub nomine <i>Onisimus normani</i> Sars, 1890. In reality this species only occurs in south Norway, while the north-Norwegian material belongs to <i>O. turgidus</i> (Sars, 1879), described from the Barents Sea and for a long time forgotten. This paper fully illustrates both species, gives a key, ...

Recent genomic analyses have provided substantial evidence for past periods of gene flow from polar bears (<i>Ursus maritimus</i>) into Alaskan brown bears (<i>Ursus arctos</i>), with some analyses suggesting a link between climate change and genomic introgression. However, because it has mainly been possible to sample bears from the present day, the timing, frequency, and evolutionary significance ...

I mars 1892 ble Bergens national-ethnografiske forening dannet med formål om å opprette et norsk folkemuseum i byen, enten som egen institusjon eller tilknyttet Bergens Museum. Museet hadde da en mindre samling norske "bondegjenstande". Nå ønsket man å sette i gang et større samlingsarbeid, med vekt på Vestlandet. Allerede fra starten var foreningen tydelig på hvem de ønsket skulle utføre arbeidet, ...

DNA i vannprøver og jordprøver kan gi verdifull informasjon om hvilke organismer som er til stede i økosystemene i dag, og hvordan livet har utviklet seg over tid.

While there are extensive macro‐ and microfossil records of a range of plants and animals from the Quaternary, earthworms and their close relatives amongst annelids are not preserved as fossils and therefore the knowledge of their past distributions is limited. This lack of fossils means that clitellate worms (Annelida) are currently underused in palaeoecological research, even though they can provide ...