Results 71 to 80 of about 4,090 (196)

Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities [PDF]

, 2011
Part of Focus on Dynamics of Arctic and Sub-Arctic Vegetation Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1)
Andreu-Hayles, Laia, Blok, Daan, Boudreau, Stephane, Collier, Laura Siegwart, Elmendorf, Sarah, Epstein, Howard E., Forbes, Bruce C., Goetz, Scott, Grogan, Paul, Hallinger, Martin, Hermanutz, Luise, Hik, David S., Lantz, Trevor, Levesque, Esther, Macias-Fauria, Marc, Menard, Cecile B, Myers-Smith, Isla, Ravolainen, Virve, Rayback, Shelly A, Rixen, Christian, Ropars, Pascale, Rozema, Jelte, Sass-Klaassen, Ute, Schaepman-Strub, Gabriela, Schmidt, Niels Martin, Tape, Ken D, Trant, Andrew, Venn, Susanna, Weijers, Niels Martin, Welker, Jeffrey, Wilmking, Martin, Wipf, Sonja   +31 more
core   +3 more sources

Reindeer population size and trend on Edgeøya Svalbard

Polar Research, 1998
Two censuses made of the population of Svalbard reindeer on Edgeøya in 1983 and 1996 resulted in 1586 and 2434 individuals respectively. Together with data from earlier population surveys (1969-77), this indicates, numerically, a population growth during the period 1969-96.
openaire   +3 more sources

Herbivore decline switches a high Arctic plant community from top‐down to bottom‐up control

Journal of Ecology, Volume 114, Issue 4, April 2026.
Declining abundance of large herbivores in the Arctic loosens the top‐down control on the vegetation, which now responds primarily to the changing climatic conditions and follows the general greening pattern observed in a warming Arctic. These changes may impact terrestrial ecosystem element cycling, with knock‐on effects on the dynamics in adjacent ...
Frida K. Brockmann, Anders Michelsen, Lærke Stewart, Floris M. van Beest, Sophia V. Hansson, Niels M. Schmidt   +5 more
wiley   +1 more source

Snowmobile impact on diurnal behaviour in the Arctic fox

Polar Research, 2017
As tourism increases globally, studies have documented impacts on wildlife from anthropogenic disturbances. In this observational experiment we aimed to investigate if snowmobile traffic affected the diurnal activity of Arctic fox in High Arctic Svalbard.
Eva Fuglei, Dorothee Ehrich, Siw T. Killengreen, Anna Y. Rodnikova, Aleksandr A. Sokolov, Åshild Ø. Pedersen   +5 more
doaj   +1 more source

Rainfall and Rain‐on‐Snow Events Over Greenland in Summer: Climatology, Trends, Synoptics

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Rain‐on‐snow (ROS) events in the Arctic can lead to major impacts on the snow cover, cryosphere and environment. During the last decades, these events have significantly increased, mostly due to climate change. Here, we use outputs from the regional climate model MAR (version 3.14) driven by the ERA5 reanalysis at 10‐km resolution over ...
Emilie Frame, Benjamin Pohl, Charles Amory, Xavier Fettweis, Victoire Buffet, Eric Bernard, Olivier Champagne, Vincent Favier   +7 more
wiley   +1 more source

Stress responses to repeated captures in a wild ungulate

Scientific Reports, 2022
While capture-mark-recapture studies provide essential individual-level data in ecology, repeated captures and handling may impact animal welfare and cause scientific bias.
L. Monica Trondrud, Cassandra Ugland, Erik Ropstad, Leif Egil Loe, Steve Albon, Audun Stien, Alina L. Evans, Per Medbøe Thorsby, Vebjørn Veiberg, R. Justin Irvine, Gabriel Pigeon   +10 more
doaj   +1 more source

Miscellaneous Publication 2004-08 [PDF]

, 2004
When Elsa the reindeer first stepped into the classroom, handler Greg Finstad had no idea where that first educational excursion would lead. Now, five years later, the Reindeer Research Program (RRP) has published Reindeer Roundup!
Fitzgerald, Doreen
core  

Oceans governance in the Arctic [PDF]

, 2008
Global warming is bringing rapid change to the Arctic. The melting of sea ice and glaciers is increasing faster than scientists predicted even a year ago.
de La Fayette, Louise Angélique
core   +1 more source

Addressing biases in sliding window analysis gives new insight into the response of parturition date to weather in a wild mammal

Oikos, Volume 2026, Issue 3, March 2026.
Animal breeding phenology in temperate and high latitude regions is often predicted by weather variables, such as temperature. Much work on this topic has focused on taxonomic groups that employ adaptive plastic responses to annual variation in an environmental cue, with analytical approaches developed to determine when weather has an effect and the ...
Kirsty H. Macphie, Sean Morris, Alison Morris, Fiona E. Guinness, Timothy H. Clutton‐Brock, Loeske E. B. Kruuk, Josephine M. Pemberton   +6 more
wiley   +1 more source

Greater biomass from Arctic greening absorbs increased grazing pressure from a large herbivore

Arctic Science
Arctic warming is causing widespread “greening” of tundra ecosystems. What this means for plant–herbivore relations, including the grazing pressure herbivores exert on increasingly productive tundra ecosystems, is poorly understood.
Samantha P.H. Dwinnell, Leif Egil Loe, Ida F. Köhn, Steve D. Albon, Larissa T. Beumer, Åshild Ø. Pedersen, René van der Wal   +6 more
doaj   +1 more source