Blar i Scientific publications på emneord "Arctic"

Viser treff 1-16 av 16

    • Aggregations of foraging black guillemots (Cepphus grylle) at a sea-ice edge in front of a tidewater glacier 

      Varpe, Øystein; Gabrielsen, Geir W. (Peer reviewed; Journal article, 2022)
      Seabirds in cold biomes sometimes aggregate near glacier fronts and at sea-ice edges to forage. In this note, we report on large aggregations of black guillemots (Cepphus grylle) at the edge of sea ice in front of the ...

    • Automatic flower detection and phenology monitoring using time-lapse cameras and deep learning 

      Mann, Hjalte M. R.; Iosifidis, Alexandros; Jepsen, Jane Uhd; Welker, Jeffrey M.; Loonen, Maarten J.J.E.; Høye, Toke T. (Peer reviewed; Journal article, 2022)
      The advancement of spring is a widespread biological response to climate change observed across taxa and biomes. However, the species level responses to warming are complex and the underlying mechanisms are difficult to ...

    • Circum-Arctic distribution of chemical anti-herbivore compounds suggests biome-wide trade-off in defence strategies in Arctic shrubs 

      Lindén, Elin; te Beest, Mariska; Aubreu, Ilka; Moritz, Thomas; Sundqvist, Maja K.; Barrio, Isabel C.; Boike, Julia; Bryant, John P.; Bråthen, Kari Anne; Buchwal, Agata; Bueno, C. Guillermo; Currier, Alain; Egelkraut, Dagmar Dorothea; Forbes, Bruce C.; Hallinger, Martin; Heijmans, Monique; Hermanutz, Luise; Hik, David S.; Hofgaard, Annika; Holmgren, Milena; Huebner, Diane C.; Høye, Toke T.; Jónsdóttir, Ingibjörg S.; Kaarlejärvi, Elina; Kissler, Emilie; Kumpula, Timo; Limpens, Juul; Myers-Smith, Isla H.; Normand, Signe; Post, Eric; Rocha, Adrian V.; Schmidt, Niels Martin; Skarin, Anna; Soininen, Eeva M; Sokolov, Aleksandr; Sokolova, Natalia; Speed, James David Mervyn; Street, Lorna E.; Tananaev, Nikita; Tremblay, Jean-Pierre; Urbanowicz, Christine; Watts, David A.; Zimmermann, Heike H.; Olofsson, Johan (Peer reviewed; Journal article, 2022)
      Spatial variation in plant chemical defence towards herbivores can help us understand variation in herbivore top–down control of shrubs in the Arctic and possibly also shrub responses to global warming. Less defended, ...

    • Demersal fish assemblages in the boreo-Arctic shelf waters around Svalbard during the warm period 2007–2014 

      Bergstad, Odd Aksel; Johannesen, Edda; Høines, Åge Sigurd; Ellingsen, Kari Elsa; Lien, Vidar Surén; Byrkjedal, Ingvar; Yoccoz, Nigel Gilles; Tveraa, Torkild; Wienerroither, Rupert; Langhelle, Gunnar; Wenneck, Thomas de Lange (Journal article; Peer reviewed, 2017)

    • Documenting lemming population change in the Arctic: Can we detect trends? 

      Ehrich, Dorothee; Schmidt, Niels M.; Gauthier, Gilles; Alisauskas, Ray; Angerbjörn, Anders; Clark, Karin; Ecke, Frauke; Eide, Nina Elisabeth; Framstad, Erik; Frandsen, Jay; Franke, Alastair; Gilg, Olivier; Giroux, Marie-Andrée; Henttonen, Heikki; Hörnfeldt, Birger; Ims, Rolf Anker; Kataev, Gennadiy D.; Kharitonov, Sergey P.; Killengreen, Siw Turid; Krebs, Charles J.; Lanctot, Richard B.; Lecomte, Nicolas; Menyushina, Irina; Morris, Douglas W.; Morrisson, Guy; Oksanen, Lauri; Oksanen, Tarja Maarit; Olofsson, Johan; Pokrovsky, Ivan G.; Popov, Igor Yu.; Reid, Don; Roth, James D.; Saalfeld, Sarah T.; Samelius, Gustaf; Sittler, Benoit; Sleptsov, Sergey M.; Smith, Paul; Sokolov, Aleksandr A.; Sokolova, Natalya A.; Soloviev, Mikhail Y.; Solovyeva, Diana (Journal article; Peer reviewed, 2019)
      Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ecosystem. We present a comprehensive overview of lemming monitoring and research activities, and assess recent trends ...

    • First pre-modern record of the gyrfalcon (Falco rusticolus) in north-east Greenland 

      Moseley, Gina E.; Rosvold, Jørgen; Gotfredsen, Anne Birgitte; Hajdas, Irka; Gilg, Olivier; Gregersen, Kristian M.; Spötl, Christoph; Edwards, Lawrence (Journal article; Peer reviewed, 2019)
      Gyrfalcon (Falco rusticolus) is the largest falcon in the world. It inhabits a wide range of climate zones in the Northern Hemisphere, from boreal forests in the south of its range to the arid polar deserts of the High ...

    • Hunting for ecological indicators: are large herbivore skeleton measures from harvest data useful proxies for monitoring? 

      Pedersen, Åshild Ønvik; Bårdsen, Bård-Jørgen; Veiberg, Vebjørn; Irvine, Justin R; Hansen, Brage Bremset (Peer reviewed; Journal article, 2023)
      Hunter-collected data and samples are used as indices of population performance, and monitoring programs often take advantage of such data as ecological indicators. Here, we establish the relationships between measures of ...

    • Later at higher latitudes: large-scale variability in seabird breeding timing and synchronicity 

      Burr, Zofia M.; Varpe, Øystein; Anker-Nilssen, Tycho; Erikstad, Kjell E; Descamps, Sébastien; Barrett, Robert T; Bech, Claus; Christensen-Dalsgaard, Signe; Lorentsen, Svein-Håkon; Moe, Børge; Reiertsen, Tone Kristin; Strøm, Hallvard (Peer reviewed; Journal article, 2016)
      In seasonal environments, organisms are expected to optimally schedule reproduction within an annual range of environmental conditions. Latitudinal gradients generate a range of seasonality to which we can expect adaptations ...

    • Macrobenthic communities in water bodies and streams of Svalbard, Norway 

      Chertoprud, Mikhail V.; Palatov, Dmitry M.; Dimante-Deimantovica, Inta (Journal article; Peer reviewed, 2017)
      Diversity of macrobenthic communities was studied from water bodies and streams of Spitsbergen, Svalbard archipelago, Norway. In total 162 quantitative samples from different regions of Spitsbergen were analysed in relation ...

    • Managing Svalbard Tourism: Inconsistencies and Conflicts of Interest 

      Hovelsrud, Grete Kaare; Olsen, Julia; Nilsson, Annika E.; Kaltenborn, Bjørn Petter; Lebel, Julien (Peer reviewed; Journal article, 2023)
      The Svalbard Archipelago has experienced a rapid increase in tourism-related activities over the past few decades. The Norwegian Government’s ambition to develop the Archipelago’s tourism industry offers multiple socio-economic ...

    • Non-native vascular flora of the Arctic: Taxonomic richness, distribution and pathways 

      Wasowicz, Pawel; Sennikov, Alexander N.; Westergaard, Kristine Bakke; Spellman, Katie; Carlson, Matthew; Gillespie, Lynn J.; Saarela, Jeffery M.; Seefeldt, Steven S.; Bennett, Bruce; Bay, Christian; Ickert-Bond, Stefanie; Väre, Henry (Journal article, 2020)
      We present a comprehensive list of non-native vascular plants known from the Arctic, explore their geographic distribution, analyze the extent of naturalization and invasion among 23 subregions of the Arctic, and examine ...

    • Non-native vascular flora of the Arctic: Taxonomic richness, distribution and pathways 

      Wasowicz, Pawel; Sennikov, Alexander N.; Spellman, Katie; Carlson, Matthew; Gillespie, Lynn J.; Saarela, Jeffery M.; Seefeldt, Steven S.; Bennett, Bruce; Bay, Christian; Ickert-Bond, Stefanie; Väre, Henry (Peer reviewed; Journal article, 2019)
      We present a comprehensive list of non-native vascular plants known from the Arctic, explore their geographic distribution, analyze the extent of naturalization and invasion among 23 subregions of the Arctic, and examine ...

    • Persistent reduction of segment growth and photosynthesis in a widespread and important sub-Arctic moss species after cessation of three years of experimental winter warming 

      Bjerke, Jarle W.; Bokhorst, Stef; Callaghan, Terry V.; Phoenix, Gareth K. (Journal article; Peer reviewed, 2017)
      1. Winter is a period of dormancy for plants of cold environments. However, winter climate is changing, leading to an increasing frequency of stochastic warm periods (winter warming events) and concomitant reductions in ...

    • Predictors of invertebrate biomass and rate of advancement of invertebrate phenology across eight sites in the North American Arctic 

      Shaftel, Rebecca; Rinella, Daniel J.; Kwon, Eunbi; Brown, Stephen C.; Gates, H. River; Kendall, Steve; Lank, David B.; Liebezeit, Joseph R.; Payer, David C.; Rausch, Jennie; Saalfeld, Sarah T.; Sandercock, Brett; Smith, Paul A.; Ward, David H.; Lanctot, Richard B. (Peer reviewed; Journal article, 2021)
      Average annual temperatures in the Arctic increased by 2–3 °C during the second half of the twentieth century. Because shorebirds initiate northward migration to Arctic nesting sites based on cues at distant wintering ...

    • Status and trends in Arctic vegetation: Evidence from experimental warming and long-term monitoring 

      Bjorkman, Anne D.; Criado, Mariana Garcia; Myers-Smith, Isla H.; Ravolainen, Virve; Jónsdóttir, Ingibjörg Svala; Westergaard, Kristine Bakke; Lawler, James P.; Aronsson, Mora; Bennett, Bruce; Gardfjell, Hans; Heiðmarsson, Starri; Stewart, Laerke; Normand, Signe (Journal article; Peer reviewed, 2019)
      Changes in Arctic vegetation can have important implications for trophic interactions and ecosystem functioning leading to climate feedbacks. Plot-based vegetation surveys provide detailed insight into vegetation changes ...

    • Working with Natural Processes: Restoring a Mining Landscape in the High Arctic, Svalbard, Norway 

      Erikstad, Lars; Hagen, Dagmar; Simensen, Trond (Peer reviewed; Journal article, 2023)
      The Svea coal mines in Svalbard have been closed, and the area is under restoration. The goal of the landscape restoration was to enable dynamic ecological and geomorphological processes by removing roads, housing, industrial ...