Now showing items 201-220 of 389

    • Slutten på en epoke. Pomorenes fangststasjon på Kapp Lee, Svalbard. 

      Jørgensen, Roger (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      Svalbard er en øygruppe beliggende omtrent midt mellom Norges fastland og Nordpolen, og denne fjerne beliggenheten er nok forklaringen på at de rike ressursene i hav og på land så sent ble utnyttet. Willem Barentsz oppdaget Svalbard 17. juni 1596, og vi har ingen eldre sikre spor etter mennesker på øygruppen (Bjerck 1999). Langs kysten, særlig på den største øya, Spitsbergen, ser man i det nakne, ...
    • The genetic basis and enigmatic origin of melanic polymorphism in the pomarine skua (Stercorarius pomarinus) 

      Janssen, Kirstin; Mundy, Nicholas I. (Journal article; Tidsskriftartikkel, 2017-12-06)
      A key outstanding issue in adaptive evolution is the relationship between the genetics of intraspecific polymorphism and interspecific evolution. Here, we show that the pale/dark ventral plumage polymorphism that occurs in both the pomarine skua (Stercorarius pomarinus) and Arctic skua (S. parasiticus) is the result of convergent evolution at the same locus (MC1R), involving some of the same amino ...
    • Introduction. From depictions of race to revitalizing a people: aspects of research on the Sámi in Finland and Norway 

      Nyyssönen, Jukka; Lehtola, Veli-Pekka (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      In this special section of journal “Arctic and North” renowned and younger scholars from Finland and Norway take on the topic of research on the Sámi, from the era of “Lappology” to the era of “Sámi research”. The focus in the articles varies between research history, historiography and history of science. Thematically, the articles range from longer overviews of the historical ...
    • Circumpolar dynamics of a marine top-predator track ocean warming rates. 

      Descamps, Sebastian; Anker-Nilssen, Tycho; Barrett, Robert T.; Irons, D.; Merkel, Flemming; Robertson, Gregory J.; Yoccoz, Nigel Gilles; Mallory, Mark L.; Montevecchi, William A.; Boertmann, D.; Artukhin, Yuri; Christensen-Dalsgaard, Signe; Erikstad, Kjell E.; Gilchrist, H. Grant; Labansen, Aili; Lorentsen, Svein Håkon; Mosbech, Anders; Olsen, Bergur; Petersen, Aevar; Rail, Jean-Francois; Renner, Heather M.; Strøm, H.; Systad, Geir Helge; Wilhelm, Sabina I.; Zelenskaya, Larisa (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-07)
      Global warming is a nonlinear process, and temperature may increase in a stepwise manner. Periods of abrupt warming can trigger persistent changes in the state of ecosystems, also called regime shifts. The responses of organisms to abrupt warming and associated regime shifts can be unlike responses to periods of slow or moderate change. Understanding of nonlinearity in the biological responses to ...
    • The dependence of long-distance migration to North Norway on environmental conditions in the wintering area and en route 

      Barrett, Robert T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      The onset of bird migration may be under partial endogenous control whereas the timing of movement is flexible with weather and conditions faced by the moving birds being the ultimate cause of variability of arrival dates. This study shows that the early arrival dates of two of three long-distance passerine spring migrants (Willow Warblers Phylloscopus trochilus and Chiffchaffs P. collybita) in North ...
    • Alpine garden plants from six continents show high vulnerability to ice encasement 

      Bjerke, Jarle W.; Elvebakk, Arve; Tømmervik, Hans (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-27)
      Icy surfaces impose challenges for northern societies, wildlife and agriculture. However, there have been relatively few studies of the impacts of anoxic ground ice on non-agricultural plants. During the winter of 2009–2010, an extreme winter warming event led to thick ground-ice layer development in the world’s northernmost botanical garden in Tromsø, in subarctic Norway, due to much rain on ...
    • Väinö Tanner and the discourse on racial difference 

      Nyyssönen, Jukka (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      The article charts a previously lesser-known aspect of research on the Skolt Sami by Väinö Tanner — his ideas on the Skolt Sami as a race. Tanner’s place in the scholarly field of racial theorizing and the discursive resources on which he relied are examined. One inspiring contemporaneous discourse was the Finnish hygienic discourse and the improvement of the nation’s health, towards which Tanner ...
    • Living on the edge: conservation genetics of seven thermophilous plant species in a high Arctic archipelago 

      Birkeland, Siri; Skjetne, Idunn Elisabeth Borgen; Brysting, Anne Krag; Elven, Reidar; Alsos, Inger Greve (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-19)
      Small, isolated and/or peripheral populations are expected to harbour low levels of genetic variation and may therefore have reduced adaptability to environmental change, including climate warming. In the Arctic, global warming has already caused vegetation change across the region and is acting as a significant stressor on Arctic biodiversity. Many of the rare plants in the Arctic are relicts from ...
    • Soapstone in Northern Norway: archaeological and geological evidence, quarry and artifact survey results. 

      Wickler, Stephen; Lindahl, Ingvar; Nilsson, Lars Petter (Peer reviewed; Chapter; Bokkapittel, 2017)
      Archaeological research on the extraction, distribution and utilization of soapstone artifacts in northern Norway has been limited, but systematic geological documentation of soapstone exposures that includes quarry activity provides an opportunity to expand archaeological insights into soapstone provenance and extraction. This article brings together ...
    • Ocean climate and egg investment in the black-legged kittiwake Rissa tridactyla. 

      Barrett, Robert T.; Erikstad, Kjell E.; Reiertsen, Tone (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-14)
      Birds allocate substantial resources to their eggs during the laying period, resources also needed for other concurrent costly processes such as mate acquisition, nest building and site defence. Egg and clutch sizes may thus vary in response to food availability prior to egg laying. We investigated the variation in egg and clutch size of black-legged kittiwakes Rissa tridactyla in a North Norwegian ...
    • A new genus of horse from Pleistocene North America 

      Heintzman, Peter D.; Zazula, Grant D.; MacPhee, Ross D. E.; Scott, Eric; Cahill, James A.; McHorse, Brianna K.; Kapp, Joshua D.; Stiller, Mathias; Wooller, Matthew J.; Orlando, Ludovic; Southon, John R.; Froese, Duane G.; Shapiro, Beth (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-28)
      The extinct ‘New World stilt-legged’, or NWSL, equids constitute a perplexing group of Pleistocene horses endemic to North America. Their slender distal limb bones resemble those of Asiatic asses, such as the Persian onager. Previous palaeogenetic studies, however, have suggested a closer relationship to caballine horses than to Asiatic asses. Here, we report complete mitochondrial and partial nuclear ...
    • Ein sieidi si rolle i religionsutøving i samtida: Skiftande tolkingar og tilnærmingar 

      Fonneland, Trude A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      Through contemporary shamanism, parts of pre-Christian practices and symbols are incorporated into new contexts and interpretive frames. One such symbol is the sieidi (Sami sacrificial stone) and heritage site Rikkagallo in Lavangen municipality in Troms. Every year from 2012, shaman Eirik Myrhaug has organized a hike to the sieidi to conduct a ritual inspired by the traditions of his Sámi ...
    • On the polar edge: the status of the northern gannet (Morus bassanus) in the Barents Sea in 2015-2016. 

      Barrett, Robert T.; Strøm, H.; Melnikov, Mikhail (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-27)
      During its population recovery in the North Atlantic in the early 1900s, the northern gannet (Morus bassanus) established its first colony in Norway at Runde in 1946. Since the 1960s, gannets have established (and later abandoned) several small colonies in the north of the country. These colonies have been regularly monitored, and in 2015–16 ca. 3300 apparently occupied nests (AON) were counted ...
    • Skarvbergvika i Porsanger. Undersøkelse av to hustufter fra tidlig metalltid og en nyere tids teltring. Porsanger k., Finnmark f. 

      Oppvang, Janne; Kjellman, Erik; Niemi, Anja Roth (Research report; Forskningsrapport, 2018-01-12)
      Høsten 2016 ble det utført en arkeologisk undersøkelse av to tufter i Skarvbergvika, Porsanger k. De to tuftene viste seg å høre til samme periode, første del av tidlig metalltid, og de tolkes som å ha vært i bruk samtidig. Hus 2 tolkes som en boligstruktur og hus 1 som et hus med en spesialfunksjon knyttet til bruk av høy varme. Funnmaterialet besto for det meste av kvarts, med innslag av slipt ...
    • Landsmøtet 1917 og samebevegelsen i nord 

      Bjørklund, Ivar (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      THE SÁMI NATIONAL ASSEMBLY IN 1917 AND THE SÁMI MOVEMENT IN THE NORTH <br> The Sámi national assembly held in Trondhjem in 1917 is considered to be the very first organized political opposition from the Norwegian Sámi. However, among the 150 persons attending, only three Sámi were from Northern Norway – an area where 90% of the Sámi population lived. The participants were Sámi from the southern parts ...
    • When things go wrong: intra-season dynamics of breeding failure in a seabird 

      Ponchon, Aurore; Grémillet, David J.H.; Christensen-Dalsgaard, Signe; Erikstad, Kjell E; Barrett, Robert T.; Reiertsen, Tone Kristin; McCoy, Karen D.; Tveraa, Torkild; Boulinier, Thierry (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-01-16)
      During breeding, long-lived species face important time and energy constraints that can lead to breeding failure when food becomes scarce. Despite the potential implications of intra-season dynamics in breeding failure for individual behavior, carry-over effects, dispersal decisions and population dynamics, little information is currently available on these dynamics at fine temporal scales. Here, ...
    • Giant invasive Heracleum persicum: Friend or foe of plant diversity? 

      Rijal, Dilli Prasad; Alm, Torbjørn; Nilsen, Lennart; Alsos, Inger Greve (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-30)
      The impact of invasion on diversity varies widely and remains elusive. Despite the con- siderable attempts to understand mechanisms of biological invasion, it is largely un- known whether some communities’ characteristics promote biological invasion, or whether some inherent characteristics of invaders enable them to ...
    • Pestplanten tromsøsvineblom Jacobaea alpina x subalpina i Norge - opphav og status 

      Alm, Torbjørn; Deschamps, Amandine Maria; Often, Anders (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      Jacobaea alpina (syn. Senecio alpinus, S. cordatus ) and J. subalpina (syn. Senecio subalpinus ) are native to the mountains of Central Europe. Both were cultivated as ornamentals in late 19th century Tromsø. From the early 1990’s onwards, numerous Jacobaea stands have been noticed outside gardens, in particular at Tromsø, but extending from Lenvik in central Troms northwards ...
    • The Church, Pietist Mission and The Sámi. - An Account of a Northern Norwegian Mission District in the Early Eighteenth Century. 

      Storm, Dikka (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      The indigenous religion of the Sámi population came under strong pressure through the Pietist mission effort, which occurred during the first decades of the 18th century in Denmark-Norway. This study focuses on the complex religious situation in the areas of the Northern Norwegian counties of Nordland and Troms. The study uses a spatial approach to map the positions of the different institutions ...
    • SEAPOP. Et nasjonalt sjøfuglprogram for styrket beslutningsstøtte i marine områder 

      Anker-Nilssen, Tycho; Bustnes, J.O.; Erikstad, K.E.; Lorentsen, Svein-Håkon; Tveraa, T.; Strøm, H.; Barrett, Robert T. (Research report; Forskningsrapport, 2005-01)
      SEAPOP (Seabird population management and petroleum operations) er et nasjonalt, kunnskapsoppbyggende program om sjøfugl tilrettelagt for å gi styrket beslutningsstøtte for marine områder. Konseptet ble først utviklet for oljeindustrien i et samarbeid mellom Norsk institutt for naturforskning (NINA) og Den norske stats oljeselskap as (Statoil), men er senere videreutviklet i samarbeid med Norsk ...