Blar i NTNU Open på forfatter "Yoccoz, Nigel"
-
Centennial relationships between ocean temperature and Atlantic puffin production reveal shifting decennial trends
Hansen, Erpur S.; Sandvik, Hanno; Erikstad, Kjell E.; Yoccoz, Nigel; Anker-Nilssen, Tycho; Bader, Jürgen; Descamps, Sebastien; Hodges, Kevin; Mesquita, Michel d. S.; Reiertsen, Tone Kristin; Varpe, Øystein (Peer reviewed; Journal article, 2021)The current warming of the oceans has been shown to have detrimental effects for a number of species. An understanding of the underlying mechanisms may be hampered by the non-linearity and non-stationarity of the relationships ... -
Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic
Hansen, Brage Bremset; Grøtan, Vidar; Aanes, Ronny; Sæther, Bernt-Erik; Stien, Audun; Fuglei, Eva; Ims, Rolf Anker; Yoccoz, Nigel; Pedersen, Åshild Ønvik (Journal article; Peer reviewed, 2013)Recently accumulated evidence has documented a climate impact on the demography and dynamics of single species, yet the impact at the community level is poorly understood. Here, we show that in Svalbard in the high Arctic, ... -
Climate fluctuations and differential survival of bridled and non-bridled Common Guillemots Uria aalge
Reiertsen, Tone Kristin; Erikstad, Kjell E; Barrett, Robert T; Sandvik, Hanno; Yoccoz, Nigel (Journal article; Peer reviewed, 2012)Climate fluctuations and its effects on ecological processes are evident in most areas worldwide but whether such climatic effects are induced phenotypic plasticity or whether animals adapt to the new environment through ... -
Contributions from terrestrial and marine resources stabilize predator populations in a rapidly changing climate
Nater, Chloe Rebecca; Eide, Nina Elisabeth; Pedersen, Åshild Ønvik; Yoccoz, Nigel; Fuglei, Eva (Peer reviewed; Journal article, 2021)Climate change has different and sometimes divergent effects on terrestrial and marine food webs, and in coastal ecosystems, these effects are tightly interlinked. Responses of opportunistic coastal predators and scavengers ... -
The Demographic buffering hypothesis: Evidence and challenges
Hilde, Christoffer Høyvik; Gamelon, Marlène; Sæther, Bernt-Erik; Gaillard, Jean-Michel; Yoccoz, Nigel; Pelabon, Christophe (Peer reviewed; Journal article, 2020)In (st)age-structured populations, the long-run population growth rate is negatively affected by temporal variation in vital rates. In most cases, natural selection should minimize temporal variation in the vital rates to ... -
Detecting climate signals in populations across life histories
Jenouvrier, Stéphanie; Long, Matthew C.; Coste, Christophe; Holland, Marika M.; Gamelon, Marlène; Yoccoz, Nigel; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2021)Climate impacts are not always easily discerned in wild populations as detecting climate change signals in populations is challenged by stochastic noise associated with natural climate variability, variability in biotic ... -
Kunnskapsstatus for bruk av molekylære verktøy i kartlegging og overvåkning av biologisk mangfold i marine miljø
Dunshea, Glenn; Martell, Luis; Bakken, Torkild; Budaeva, Nataliya; Ekrem, Torbjørn; Tandberg, Anne Helene S.; Baussant, Thierry; de Boer, Hugo; Hestetun, Jon Thomassen; Hobæk, Anders; Kallioniemi, Eveliina; Larsen, Aud; Markussen, Stine Svalheim; Mauvisseau, Quentin; Ray, Jessica Louise; Yoccoz, Nigel; Willassen, Endre (Research report, 2021)Denne rapporten er bestilt av Miljødirektoratet fra NorBOL (Norwegian Barcode of Life), et nasjonalt nettverk av forskningsinstitusjoner som koordineres av NTNU Vitenskapsmuseet. Universitetsmuseet i Bergen har hatt ... -
Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map
Soininen, Eeva M; Barrio, Isabel C.; Bjørkås, Ragnhild; Björnsdóttir, Katrin; Ehrich, Dorothee; Hopping, Kelly A.; Kaarlejarvi, E.; Kolstad, Anders Lorentzen; Abdulmanova, Svetlana; Björk, Robert G.; Bueno, C. Guillermo; Eischeid, Isabell; Higgens, Rebecca Finger; Forbey, Jennifer; Gignac, Charles; Gilg, Olivier; Herder, Michael den; Holm, H. S.; Hwang, Bernice; Jepsen, Jane Uhd; Kamenova, Stefaniya; Kater, Ilona; Koltz, Amanda; Kristensen, Jeppe A.; Little, Chelsea J.; Macek, Petr; Mathisen, Karen Marie; Metcalfe, Daniel B.; Mosbacher, Jesper Bruun; Mörsdorf, M.; Park, Taejin; Propster, Jeffrey; Roberts, Aradhana J; Serrano, E; Spiegel, Marcus P.; Tamayo, Mariana; Tuomi, Maria Wilhelmina; Verma, Megha; Vuorinen, Katariina Elsa Maria; Väisänen, Maria; Wal, Rene van der; Wilcots, Megan; Yoccoz, Nigel; Speed, James David Mervyn (Peer reviewed; Journal article, 2021)Herbivores modify the structure and function of tundra ecosystems. Understanding their impacts is necessary to assess the responses of these ecosystems to ongoing environmental changes. However, the effects of herbivores ... -
Strong migratory connectivity across meta-populations of sympatric North Atlantic seabirds
Merkel, Benjamin; Descamps, Sebastien; Yoccoz, Nigel; Grémillet, David; Fauchald, Per; Danielsen, Jóhannis; Daunt, Francis; Erikstad, Kjell E.; Ezhov, Aleksey V.; Harris, Mike P.; Gavrilo, Maria; Lorentsen, Svein-Håkon; Reiertsen, Tone Kristin; Systad, Geir Helge Rødli; Thórarinsson, Thorkell Lindberg; Wanless, Sarah; Strøm, Hallvard (Peer reviewed; Journal article, 2021)Identifying drivers of population trends in migratory species is difficult, as they can face many stressors while moving through different areas and environments during the annual cycle. To understand the potential of ... -
Sustainable management of populations impacted by harvesting and climate change
Stenseth, Nils Christian; Ims, Rolf Anker; Sæther, Bernt-Erik; Cadahia, Luis; Herfindal, Ivar; Lee, Aline Magdalena; Whittington, Jason D; Yoccoz, Nigel (Peer reviewed; Journal article, 2022)The sustainable use of natural resources is critical for addressing the global challenges of today. Strategies for sustainable harvesting need to consider not only harvested species, but also other non-harvested species ... -
Temporal correlations among demographic parameters are ubiquitous but highly variable across species
Fay, Rémi; Hamel, Sandra; Van de Pol, Martijn; Gaillard, Jean Michel; Yoccoz, Nigel; Acker, Paul; Authier, Matthieu; Larue, Benjamin; Le Coeur, Christie; Macdonald, Kaitlin R.; Nicol-Harper, Alex; Barbraud, Christophe; Bonenfant, Christophe; Van Vuren, Dirk H.; Cam, Emmanuelle; Delord, Karine; Gamelon, Marlène; Moiron, Maria; Pelletier, Fanie; Rotella, Jay J.; Teplitsky, Céline; Visser, Marcel E.; Wells, Caitlin P.; Wheelwright, Nathaniel T.; Jenouvrier, Stéphanie; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2022)Temporal correlations among demographic parameters can strongly influence population dynamics. Our empirical knowledge, however, is very limited regarding the direction and the magnitude of these correlations and how they ... -
Temporal correlations among demographic parameters are ubiquitous but highly variable across species
Fay, Rémi; Hamel, Sandra; Van de Pol, Martijn; Gaillard, Jean Michel; Yoccoz, Nigel; Acker, Paul; Authier, Matthieu; Larue, Benjamin; Le Coeur, Christie; Macdonald, Kaitlin R.; Nicol-Harper, Alex; Barbraud, Christophe; Bonenfant, Christophe; Van Vuren, Dirk H.; Cam, Emmanuelle; Delord, Karine; Gamelon, Marlène; Moiron, Maria; Pelletier, Fanie; Rotella, Jay J.; Teplitsky, Céline; Visser, Marcel E.; Wells, Caitlin P.; Wheelwright, Nathaniel T.; Jenouvrier, Stéphanie; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2022)Temporal correlations among demographic parameters can strongly influence population dynamics. Our empirical knowledge, however, is very limited regarding the direction and the magnitude of these correlations and how they ...