Now showing items 146-165 of 223

    • Paleoekolgiska undersökningar i samband med utvidgelse av E8 i Lavangsdalen 

      Sjøgren, Per Johan E (Research report; Forskningsrapport, 2013)
      Inför utvidgelsen av E8 i Lavangsdalen identifierades två fredade samiska kulturminneslokaliteter (Sametinget 2011) vilka delvis eller helt skulle förstöras i samband med utbyggningen och krävde vidare undersökningar. Det rörde sig om kulturspår från samisk renskötsel vilket i första hand gav sig uttryck som förändringar i dagens vegetation. För att få en förståelse av hur långt tillbaka i tiden den ...
    • Pannaria pyxinoides comb. nov., an overlooked lichen from Northern New Zealand 

      Elvebakk, Arve (Journal article; Tidsskriftartikkel, 2018-07)
      The name <i>Psoroma pyxinoides</i>, which has been considered to be a synonym of <i>Pannaria sphinctrina</i>, is shown here to represent a distinct species, differing from <i>P. sphinctrina</i> by thallus characters and in spore and pycnidium morphology. Those characters indicate a relationship with <i>Pannaria allorhiza</i>. Like the latter species, <i>P. pyxinoides</i> is endemic to northern New ...
    • Past Arctic aliens have passed away, current ones may stay 

      Alsos, Inger Greve; Ware, Christopher; Elven, Reidar (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-07-04)
      Increased human activity and climate change are expected to increase the numbers and impact of alien species in the Arctic, but knowledge of alien species is poor in most Arctic regions. Through field investigations over the last 10 years, and review of alien vascular plant records for the high Arctic Archipelago Svalbard over the past 130 years, we explored long term trends in persistence and ...
    • 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 ...
    • Plant DNA in sediments: to which degree do they represent the flora? 

      Alsos, Inger Greve; Coissac, Eric; Edwards, Mary E.; Merkel, Marie Kristine Føreid; Gielly, Ludovic; Sjögren, Per; Taberlet, Pierre; Yoccoz, Nigel Gilles (Conference object; Konferansebidrag, 2015-05)
    • Plant DNA metabarcoding of lake sediments: How does it represent the contemporary vegetation 

      Alsos, Inger Greve; Lammers, Youri; Yoccoz, Nigel Gilles; Jørgensen, Tina; Sjögren, Per; Gielly, Ludovic; Edwards, Mary E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-17)
      Metabarcoding of lake sediments have been shown to reveal current and past biodiversity, but little is known about the degree to which taxa growing in the vegetation are represented in environmental DNA (eDNA) records. We analysed composition of lake and catchment vegetation and vascular plant eDNA at 11 lakes in northern Norway. Out of 489 records of taxa growing within 2 m from the lake shore, ...
    • Plant species introduced by foreigners according to folk tradition in Norway and some other European countries: Xenophobic tales or not? 

      Alm, Torbjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-05)
      Background In their quest to understand and interpret nature, people have frequently sought religious or divine origins for plant species and their characteristics. Less often, historical events or persons are involved. This study comprises eleven cases of the latter kind, all claiming that plant species have been introduced by foreigners or at least from foreign lands. Methods Based on literature ...
    • Polare maskuliniteter 

      Hauan, Marit Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      In this paper my aim is to read and understand the journal of Gerrit de Veer from the last journey of William Barents to the Arctic Regions in 1596 and the journal of captain Junge on his hunting trip from Tromsø to Svalbard in 1834.It is nearly 240 years between this to voyages. The first journal is known as the earliest report from the arctic era. Gerrit de Veer adds instructive copper engravings ...
    • Population genomics of Mesolithic Scandinavia: Investigating early postglacial migration routes and high-latitude adaptation 

      Günther, Torsten; Malmström, Helena; Svensson, Emma M.; Omrak, Ayça; Sánchez-Quinto, Frederico; Kılınç, Gülşah M.; Krzewinska, Maja; Eriksson, Gunilla; Fraser, Magdalena; Edlund, Hanna; Munteres, Arielle R.; Coutinho, Alexandra; Simões, Luciana G.; Vicente, Mário; Sjölander, Anders; Sellevold, Berit J.; Jørgensen, Roger; Claes, Peter; Shriver, Mark D.; Valdiosera, Cristina; Netea, Mihai G.; Apel, Jan; Lidén, Kerstin Birgitta; Skar, Birgitte; Storå, Jan; Götherström, Anders; Jakobsson, Mattias (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-09)
      Scandinavia was one of the last geographic areas in Europe to become habitable for humans after the Last Glacial Maximum (LGM). However, the routes and genetic composition of these postglacial migrants remain unclear. We sequenced the genomes, up to 57× coverage, of seven hunter-gatherers excavated across Scandinavia and dated from 9,500–6,000 years before present (BP). Surprisingly, among the ...
    • The potential of shoreline and shallow submerged Iron Age and Medieval archaeological sites in the Lofoten Islands, northern Norway 

      Wickler, Stephen (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The Lofoten-Vesterålen archipelago (67°30’ - 69°30’N) is a chain of mountainous islands dissected by cirques, glacial valleys, and fjords that extends from northeast to southwest into the Norwegian Sea (Figure 1). Vesterålen is the northerly chain of islands and the seven islands of Lofoten lie to the south. The climate of Lofoten is mild despite this high latitude location. Temperatures ...
    • Prevailing weather conditions and diet composition affect chick growth and survival in the black-legged kittiwake 

      Christensen-Dalsgaard, Signe; May, Roel F.; Barrett, Robert T.; Langset, Magdalene; Sandercock, Brett K.; Lorentsen, Svein-Håkon (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-04)
      To identify priorities for management of seabirds during the breeding season, it is important to understand the ecological mechanisms driving chick growth and survival. In this study, we examined the effects of diet and prevailing weather on the growth and survival of chicks of black-legged kittiwakes Rissa tridactyla over a 10 yr period at Anda, a seabird colony in northern Norway. We show that ...
    • Prey density in non-breeding areas affects adult survival of black-legged kittiwakes Rissa tridactyla 

      Reiertsen, Tone K.; Erikstad, Kjell E.; Anker-Nilssen, Tycho; Barrett, Robert T.; Boulinier, Thierry; Frederiksen, Morten; González-Solís, Jacob; Grémillet, David; Johns, David; Moe, Børge; Ponchon, Aurore; Skern-Mauritzen, Mette; Sandvik, Hanno; Yoccoz, Nigel Gilles (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-08-27)
      In migratory birds, environmental conditions in both breeding and non-breeding areas may affect adult survival rates and hence be significant drivers of demographic processes. In seabirds, poor knowledge of their true distribution outside the breeding season, however, has severely limited such studies. This study explored how annual adult survival rates of black-legged kittiwakes Rissa tridactyla ...
    • Prøvestikk i innmark på Flakstad Prestegård sommeren 2012 

      Arntzen, Johan Eilertsen (Research report; Forskningsrapport, 2013)
      Som et ledd i undertegnedes PhD-prosjekt “The consolidation of farming in northern Norway” ble det den 26.07.2012 gjort befaringer og mindre prøvegravninger på Flakstad Prestegård i Flakstad kommune. Stedet ligger helt nord på Flakstadøya på en sandstrandflate mellom fjellet og havet og rett nord for Flakstad kirke fra 1700-tallet. Jordsmonnet består av fin flygesand og preges der hvor det ikke ...
    • Psoroma spinuliferum (Pannariaceae), a new corticolous lichen species from Alaska with two different types of cephalodia 

      Elvebakk, Arve; Tønsberg, Tor (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-30)
      The species <i>Psoroma spinuliferum</i> is described here as new to science. It is only known from the holotype on a <i>Picea sitchensis</i> trunk near a sea-shore in southern, coastal Alaska. The species is distinct in having short, brittle, spinule-like hairs on both apothecium margins, thalline squamules and on pulvinate to coarsely coralloid cephalodia with emerald-colored <i>Nostoc</i> photobionts. ...
    • Range shifts and global warming: ecological responses of Empetrum nigrum L. to experimental warming at its northern (high Arctic) and southern (Atlantic) geographical range margin 

      Buizer, B; Weijers, S; van Bodegom, PM; Alsos, Inger Greve; Eidesen, Pernille Bronken; van Breda, J; de Korte, M; van Rijckevorsel, J; Rozema, J (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Global change is expected to lead to range shifts of plant species. The ecological mechanisms underpinning these shifts are currently not well understood. Here, we compared ecological responses possibly underlying southern range contraction and northern range expansion of Empetrum nigrum, a key species in northern heathlands, which may be related to global change. We hypothesized a negative ...
    • "Rara avis in Ultima Thule": In diem natalem septuagesimum Profestricis Sunnivae des Bouvrie 

      Aspaas, Per Pippin (Journal article; Tidsskriftartikkel, 2015)
    • Recent decline in body condition of departing Common Guillemots Uria aalge at Hornøya, North Norway 

      Barrett, Robert T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
      Since 1980, there has been large variation and a recent decline in the mass and body condition of Common Guillemot Uria aalge chicks departing from the nest site in NE Norway. This may be related to deterioration in the feeding conditions off the colony and is alarming considering the critically endangered status of the species in Norway. To measure body condition, earlier studies have caught, weighed ...
    • Reconstructing the invasion history of Heracleum persicum (Apiaceae) into Europe 

      Rijal, Dilli Prasad; Alm, Torbjørn; Jahodová, Šárka; Stenøien, Hans K.; Alsos, Inger Greve (Journal article; Tidsskriftartikkel, 2015-11-06)
      Sparse, incomplete and inappropriate historical records of invasive species often hamper invasive species management interventions. Population genetic analyses of invaders might provide a suitable context for the identification of their source populations and possible introduction routes. Here, we describe the population genetics of Heracleum persicum Desf. ex Fisch and trace its route of introduction ...
    • Reconstruction as trope of cultural display. Rethinking the role of “living exhibitions” 

      Baglo, Cathrine (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      During the nineteenth and early twentieth century, a new and particularly widespread type of exhibition practice occurred all over the Western World, namely “living exhibitions”. They were characterized by the display of indigenous and exotic-looking peoples in zoological gardens, circuses, amusement parks, various industrial expositions, and major international expositions where representatives ...