Artikler, rapporter og annet (arktisk og marin biologi): Nye registreringer

Viser treff 1461-1480 av 1643

    • The PREDICTS database: a global database of how local terrestrial biodiversity responds to human impacts 

      Hudson, Lawrence N.; Newbold, Tim; Contu, Sara; Hill, Samantha L. L.; Lysenko, Igor; Palma, Adriana De; Phillips, Helen R. P.; Senior, Rebecca A.; Bennett, Dominic J.; Booth, Hollie; Choimes, Argyrios; Correia, David L. P.; Day, Julie; Echeverría-Londoño, Susy; Garon, Morgan; Harrison, Michelle L. K.; Ingram, Daniel J.; Jung, Martin; Kemp, Victoria; Kirkpatrick, Lucinda; Martin, Callum D.; Pan, Yuan; White, Hannah J.; Aben, Job; Abrahamczyk, Stefan; Adum, Gilbert B.; Aguilar-Barquero, Virginia; Aizen, Marcelo A.; Ancrenaz, Marc; Arbeláez-Cortés, Enrique; Armbrecht, Inge; Azhar, Badrul; Azpiroz, Adrián B.; Baeten, Lander; Báldi, András; Banks, John E.; Barlow, Jos; Batary, Peter; Bates, Adam J.; Bayne, Erin M.; Beja, Pedro; Berg, Åke; Berry, Nicholas J.; Bicknell, Jake E.; Bihn, Jochen H.; Böhning-Gaese, Katrin; Boekhout, Teun; Boutin, Celine; Bouyer, Jeremy; Brearley, Francis Q.; Brito, Isabel; Brunet, Jörg; Buczkowski, Grzegorz; Buscardo, Erika; Cabra-Garcia, Jimmy; Calvino-Cancela, Maria; Cameron, Sydney A.; Cancello, Eliana M.; Carrijo, Tiago F.; Carvalho, Anelena L.; Castro, Helena; Castro-Luna, Alejandro A.; Cerda, Rolando; Cerezo, Alexis; Chauvat, Matthieu; Clarke, Frank M.; Cleary, Daniel F.R.; Connop, Stuart P.; D'Aniello, Biagio; da Silva, Pedro Giovani; Darvill, Ben; Dauber, Jens; Dejean, Alain; Diekotter, Tim; Dominguez-Haydar, Yamileth; Dormann, Carsten F.; Dumont, Bertrand; Dures, Simon G.; Dynesius, Mats; Edenius, Lars; Elek, Zoltán; Entling, Martin H.; Farwig, Nina; Fayle, Tom M.; Felicioli, Antonio; Felton, Annika M.; Ficetola, Gentile F.; Filgueiras, Bruno K.C.; Fonte, Steven J.; Fraser, Lauchlan H.; Fukuda, Daisuke; Furlani, Dario; Ganzhorn, Jörg U.; Garden, Jenni G.; Gheler-Costa, Carla; Giordani, Paolo; Giordano, Simonetta; Gottschalk, Marco S.; Goulson, Dave; Gove, Aaron D.; Grogan, James; Hanley, Mick E.; Hanson, Thor; Hashim, Nor R.; Hawes, Joseph E.; Hebert, Christian; Helden, Alvin J.; Henden, John-André; Hernandez, Lionel; Herzog, Felix; Higuera-Diaz, Diego; Hilje, Branko; Horgan, Finbarr G.; Horvath, Roland; Hylander, Kristoffer; Isaacs-Cubides, Paola; Ishitani, Masahiro; Jacobs, Carmen T.; Jaramillo, Victor J.; Jauker, Birgit; Jonsell, Mats; Jung, Thomas S.; Kapoor, Vena; Kati, Vassiliki; Katovai, Eric; Kessler, Michael; Knop, Eva; Kolb, Anette; Korösi, Adam; Lachat, Thibault; Lantschner, Victoria; Le Feon, Violette; LeBuhn, Gretchen; Legare, Jean-Philippe; Letcher, Susan G.; Littlewood, Nick A.; Lopez-Quintero, Carlos A.; Louhaichi, Mounir; Lövei, Gabor L.; Lucas-Borja, Manuel Esteban; Luja, Victor H.; Maeto, Kauro; Magura, Tibor; Mallari, Neil Aldrin; Marin-Spiotta, Erika; Marshall, E.J.P.; Martinez, Eliana; Mayfield, Margaret M.; Mikusinski, Grzegorz; Milder, Jeffrey C.; Miller, James R.; Morales, Carolina L.; Muchane, Mary N.; Muchane, Muchai; Naidoo, Robin; Nakamura, Akihiro; Naoe, Shoji; Nates-Parra, Guiomar; Navarrete Gutierrez, Dario A.; Neuschulz, Eike L.; Noreika, Norbertas; Norfolk, Olivia; Noriega, Jorge Ari; Nöske, Nicole M.; O'Dea, Niall; Oduro, William; Ofori-Boateng, Caleb; Oke, Chris O.; Osgathorpe, Lynne M.; Paritsis, Juan; Parra-H, Alejandro; Pelegrin, Nicolas; Peres, Carlos A.; Persson, Anna S.; Petanidou, Theodora; Phalan, Ben; Philips, T. Keith; Poveda, Katja; Power, Eileen F.; Presley, Steven J.; Proenc, Vania; Quaranta, Marino; Quintero, Carolina; Redpath-Downing, Nicola A.; Reid, J. Leighton; Reis, Yana T.; Ribeiro, Danilo B.; Richardson, Barbara A.; Richardson, Michael J.; Robles, Carolina A.; Römbke, Jörg; Romero-Duque, Luz Piedad; Rosselli, Loreta; Rossiter, Stephen J.; Roulston, T’ai H.; Rousseau, Laurent; Sadler, Jonathan P.; Sáfi án , Szabolcs; Saldana-Vázquez, Romeo A.; Samnegård, Ulrika; Schüepp, Christof; Schweiger, Oliver; Sedlock, Jodi L.; Shahabuddin, Ghazala; Sheil, Douglas; Silva, Fernando A. B.; Slade, Eleanor M.; Smith-Pardo, Allan H.; Sodhi, Navjot S.; Somarriba, Eduardo J.; Sosa, Ramón A.; Stout, Jane C.; Struebig, Matthew J.; Sung, Yik-Hei; Threlfall, Caragh G.; Tonietto, Rebecca; Tóthmérész, Béla; Tscharntke, Teja; Turner, Edgar C.; Tylianakis, Jason M.; Vanbergen, Adam J.; Vassilev, Kiril; Verboven, Hans A. F.; Vergara, Carlos H.; Vergara, Pablo M.; Verhulst, Jort; Walker, Tony R.; Wang, Yanping; Watling, James I.; Wells, Konstans; Williams, Christopher D.; Willig, Michael R.; Woinarski, John C. Z.; Wolf, Jan H. D.; Woodcock, Ben A.; Yu, Douglas W.; Zaitsev, Andrey S.; Collen, Ben; Ewers, Rob M.; Mace, Georgina M.; Purves, Drew W.; Scharlemann, Jörn P. W.; Purvis, Andy (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-12)
      Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a ...

    • Effect of alternating day and night temperature on short day-induced bud set and subsequent bud burst in long days in Norway spruce 

      Olsen, Jorunn Elisabeth; Lee, YeonKyeong; Junttila, Olavi (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-12-09)

    • Demographic effects of extreme weather events: snow storms, breeding success, and population growth rate in a long-lived Antarctic seabird 

      Descamps, Sebastian; Tarroux, Arnaud; Varpe, Øystein; Yoccoz, Nigel Gilles; Tveraa, Torkild; Lorentsen, Svein-Håkon (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-12-23)
      Weather extremes are one important element of ongoing climate change, but their impacts are poorly understood because they are, by definition, rare events. If the frequency and severity of extreme weather events increase, there is an urgent need to understand and predict the ecological consequences of such events. In this study, we aimed to quantify the effects of snow storms on nest survival ...

    • Evaluation of etorphine reversed by diprenorphine for the immobilisation of free-ranging Atlantic walrus (Odobenus rosmarus rosmarus L.) 

      Acquarone, Mario; Born, Erik W.; Griffiths, David; Knutsen, Lars Øyvind; Wiig, Øystein; Gjertz, Ian (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Atferd og spredning av rømt oppdrettslaks og villaks i Namsen og andre elver. Resultater fra merking av laks i Namsfjorden og Vikna 

      Næsje, Tor; Ulvan, Eva Marita; Sandnes, Tomas*; Jensen, Jenny; Staldvik, Frode; Holm, Ragnar*; Landstad, Jan Arild*; Økland, Finn; Moe, Karina; Fiske, Peder; Heggberget, Tor Gravråk; Thorstad, Eva Bonsak (Research report; Forskningsrapport, 2013-04)
      Vi undersøkte atferd og spredning av rømt oppdrettslaks og villaks i Namsen og andre elver i Midt-Norge i 2012. Hovedmålsettingen var å skaffe kunnskap slik at man kan gjøre sikrere beregninger av den reelle andelen rømt oppdrettslaks i lakseelver. De ulike delmålene var å:  Vurdere sikkerheten i dagens metoder for beregning av andel oppdrettslaks i gytebe-stander av villaks.  Sammenligne ...

    • Mapping ecosystem services in the Arctic by cross-cultural PPGIS 

      Hausner, Vera Helene; Schmidt, Jennifer Irene; Ehrich, Dorothee (Conference object; Konferansebidrag, 2014)

    • Variability in Calanus spp. abundance on fine- to mesoscales in an Arctic fjord: implications for little auk feeding 

      Vogedes, Daniel Ludwig; Eiane, Ketil; Båtnes, Anna Solvang; Berge, Jørgen (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • The Effect of Freeze/Thaw Cycles on Reproducibility of Metabolic Profiling of Marine Microalgal Extracts Using Direct Infusion High-Resolution Mass Spectrometry (HR-MS) 

      Eilertsen, Hans Christian; Huseby, Siv; Degerlund, Maria; Eriksen, Gunilla Kristina; Ingebrigtsen, Richard Andre; Hansen, Espen (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-10-13)
      During normal sample preparation, storage in freezers and subsequent freeze/thaw cycles are commonly introduced. The effect of freeze/thaw cycles on the metabolic profiling of microalgal extracts using HR-MS was investigated. Methanolic extracts of monocultures of Arctic marine diatoms were analyzed immediately after extraction, after seven days of storage at −78 °C (one freeze/thaw cycle), and after ...

    • Identification Guide for Skates (Chondrichthyes: Rajiformes) in Norwegian waters, for both sexes and all stadiums 

      Lynghammar, Arve (Research report; Forskningsrapport, 2014-05)

    • Molecular characterization and phylogenetics of Fennoscandian cowpox virus isolates based on the p4c and atip genes 

      Okeke, Malachy Ifeanyi; Okoli, Arinze Stanley; Nilssen, Øivind; Moens, Ugo; Tryland, Morten; Bøhn, Thomas; Traavik, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Background: Cowpox virus (CPXV), a rodent-borne Orthopoxvirus (OPV) that is indigenous to Eurasia can infect humans, cattle, felidae and other animals. Molecular characterization of CPXVs isolated from different geographic locations is important for the understanding of their biology, geographic distribution, classification and evolution. Our aim was to characterize CPXVs isolated from Fennoscandia ...

    • Phenology and cover of plant growth forms predict herbivore habitat selection in a high latitude ecosystem 

      Iversen, Marianne; Fauchald, Per; Langeland, Knut; Ims, Rolf Anker; Yoccoz, Nigel Gilles; Bråthen, Kari Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      The spatial and temporal distribution of forage quality is among the most central factors affecting herbivore habitat selection. Yet, for high latitude areas, forage quantity has been found to be more important than quality. Studies on large ungulate foraging patterns are faced with methodological challenges in both assessing animal movements at the scale of forage distribution, and in assessing ...

    • Use of unmanned aircraft systems (UAS) in a multi-scale vegetation index study of arctic plant communities in Adventdalen on Svalbard 

      Tømmervik, Hans; Karlsen, Stein-Rune; Nilsen, Lennart; Johansen, Bernt; Storvold, Rune; Zmarz, Anna; Beck, Pieter S.; Høgda, Kjell Arild; Goetz, Scott; Park, Taejin; Zagajewski, Bogdan; Myneni, Ranga B.; Bjerke, Jarle W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Use of Unmanned Aircraft Systems (UAS) gives the opportunity to carry out research with a re-duced environmental footprint. Unmanned aircraft, including both fixed wing and multi rotor types (helicopters) allow us to collect very high resolution image data for vegetation mapping without the need for any personnel walking into the site and thereby potentially disturbing the sensitive Arctic ecosystems. ...

    • The relative effect of parasites and social status on sperm traits in Arctic charr 

      Figenschou, Lars; Folstad, Ivar; Rudolfsen, Geir; Hanssen, Sveinn Are; Kortet, Raine; Skau, Philip; Killie, Jan Eirik; Oskam, Irma Caroline; Strand, Harald (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Sperm production and sperm swimming speed, which most likely affect fertilization under sperm competition, are modified by proximate mechanisms. In a comprehensive observational study of free-living and reproductively active Arctic charr (Salvelinus alpinus), we examined the possible modulating effects of male social status (including ornamental development), parasite intensities, and immunity ...

    • Prolonged chemical restraint of walrus (Odobenus rosmarus) with etorphine supplemented with medetomidine 

      Griffiths, David; Born, Erik W.; Acquarone, Mario (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Physiological studies involving the use of isotopic water required chemical restraint of free- ranging walruses (Odobenus rosmarus) for several hours. In August 2000, six male walrus (total body mass: 1050–1550 kg) were immobilized in East Greenland by remote delivery of 8.0–9.8 mg of etorphine and subsequently restrained for up to 6.75 h by administration of medetomidine. The effects of etorphine ...

    • Functional diversity of the Barents Sea fish community 

      Wiedmann, Magnus Aune; Aschan, Michaela; Certain, Gregoire; Dolgov, Andrey V.; Greenacre, Michael; Johannesen, Edda; Planque, Benjamin; Primicerio, Raul (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      This paper provides the first assessment of the functional diversity (FD) of the Barents Sea fish community. FD is recognized as an important driver of ecosystem functions and, thus, governs the adaptability of ecosystems in the face of disturbance. We integrate ecosystem survey data with an extensive trait matrix and show that fish FD displayed large spatial variation. The study period (2004 to ...

    • Evoked potentials in the Atlantic cod following putatively innocuous and putatively noxious electrical stimulation: a minimally invasive approach 

      Ludvigsen, Stian; Stenklev, Niels Chr.; Johnsen, Helge K.; Laukli, Einar; Matre, Dagfinn; Aas-Hansen, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Aspects of peripheral and central nociception have previously been studied through recording of somatosensory evoked potentials (SEPs) to putative noxious stimuli in specific brain regions in a few freshwater fish species. In the present study, we describe a novel, minimally invasive method for recording SEPs from the central nervous system of the Atlantic cod (Gadus morhua). Cutaneous ...

    • Hydrozoan diversity on hard bottom in Kongsfjorden, Svalbard 

      Voronkov, Andrey; Stepanjants, S.D.; Hop, Haakon (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
      Hydroids in Kongsfjorden, Svalbard, were studied on five hard-bottom transects along gradients of environmental conditions from the glacier at the fjord’s head to the fjord’s mouth at depth-range 0–30 m. Hydrozoa colonies are widely distributed on rock and gravel substrata in Kongsfjorden. In general, however, hydroids are not dominant or subdominant in zoobenthic communities. The exception is ...

    • The Atlantic spiny lumpsucker Eumicrotremus spinosus: life history traits and the seemingly unlikely interaction with the pelagic amphipod Themisto libellula 

      Berge, Jørgen; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      During a cruise to Svalbard in September 2012 a unique collection of the little known but widely distributed Atlantic spiny lumpsucker (Eumicrotremus spinosus) was made in the Hinlopen Strait. A total of 140 individuals (36–101mm total length) were col− lected using a bottom trawl. All individuals were sexed and 26 of these were also analysed for gonadosomatic index (GSI), hepatosomatic index ...

    • Lipid Status of the Two High Latitude Fish Species, Leptoclinus maculatus and Lumpenus fabricii 

      Murzina, Svetlana A.; Nefedova, Zinaida A.; Falk-Petersen, Stig; Ripatti, Pauli O.; Ruokolainen, Tatiana R.; Pekkoeva, Svetlana N.; Nemova, Nina N. (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      A comparative study of the lipid status (i.e., the total lipid and phospholipid concentrations and the percentage of fatty acids of the total lipids) of adult specimens of daubed shanny (Leptoclinus maculatus) from Svalbard waters (Isfjord) and slender eel blenny (Lumpenus fabricii) from the White Sea (Onega Bay and Tersky shore) was performed to study the metabolism and functions of lipids of these ...

    • No longer tracking greenery in high altitudes: Pastoral practices of Rupshu nomads and their implications for biodiversity conservation 

      Singh, Navinder; Bhatnagar, Yash Veer; Lecomte, Nicolas; Fox, Joseph L.; Yoccoz, Nigel (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Nomadic pastoralism has thrived in Asia’s rangelands for several millennia by tracking seasonal changes in forage productivity and coping with a harsh climate. This pastoralist lifestyle, however, has come under intense transformations in recent decades due to socio-political and land use changes. One example is of the high-altitude trans-Himalayan rangelands of the Jammu and Kashmir State in ...