Blar i Publikasjoner fra CRIStin - NINA på forfatter "Hofgaard, Annika"
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Aerospace mapping of the status and position of northern forest limit
Kravtsova, Valentina I.; Tutubalina, Olga; Hofgaard, Annika (Peer reviewed; Journal article, 2012)We study changes in the position of the northern forest limit and state of vegetation in the taiga-tundra ecotone through aerial and satellite imagery in the context of climate variability and of the projected advance of ... -
Assessing the resilient provision of ecosystem services by social-ecological systems: introduction and theory
Sarkki, Simo; Ficko, Andrej; Wielgolaski, Frans Emil; Abraham, Eleni M.; Bratanova-Doncheva, Svetla; Grunewald, Karsten; Hofgaard, Annika; Holtmeier, Friedrich-Karl; Kyriazopoulos, Apostolos P.; Broll, Gabriele; Nijnik, Maria; Sutinen, Marja-Liisa (Journal article; Peer reviewed, 2017) -
BioTIME: A database of biodiversity time series for the Anthropocene
Dornelas, Maria; Antao, Laura H.; Moyes, Faye; Bates, Amanda E.; Magurran, Anne E.; Adam, Dusan; Akhmetzhanova, Asem A.; Appeltans, Ward; Arcos, Jose Manuel; Arnold, Haley; Ayyappan, Narayanan; Badihi, Gal; Baird, Andres H.; Barbosa, Miguel; Barreto, Tiago Egydio; Bässler, Claus; Bellgrove, Alecia; Belmaker, Jonathan; Benedetti-Cecchi, Lisandro; Bett, Brian J.; Bjorkman, Anne D.; Błazewicz, Magdalena; Blowes, Shane A.; Bloch, Christopher P.; Bonebrake, Timothy C.; Boyd, Susan; Bradford, Matt; Brooks, Andrew J.; Brown, James H.; Bruelheide, Helge; Budy, Phaedra; Carvalho, Fernando; Castaneda-Moya, Edward; Chen, Chaolun Allen; Chamblee, John F.; Chase, Tory J.; Collier, Laura Siegwart; Cooper, Elisabeth J.; Cornelissen, J. Hans C.; Cotano, Unai; Crow, Shannan Kyle; Damasceno, Gabriella; Davies, Claire H.; Davis, Robert A.; Day, Frank P.; Degraer, Steven; Doherty, Tim S.; Dunn, Timothy E.; Durigan, Giselda; Hofgaard, Annika; Johannessen, Tore; Klanderud, Kari; Knutsen, Halvor; Olsen, Esben Moland (Journal article; Peer reviewed, 2018) -
Bruk av fjernmåling i palsmyrovervåking
Lauknes, Tom Rune; Larsen, Yngvar; Høgda, Kjell-Arild; Tømmervik, Hans; Hofgaard, Annika (NINA rapport;803, Research report, 2012)Lauknes, T.R., Larsen, Y., Høgda, K.A., Tømmervik, H. & Hofgaard, A. 2012. Bruk av fjernmåling i palsmyrovervåking. – NINA Rapport 803. 38 s. Et fjernmålingsbasert pilotstudium som bruker flybilder, satellittbilder med ... -
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, ... -
Delineation of the forest-tundra ecotone using texture-based classification of satellite imagery
Guo, Wenkai; Rees, Gareth; Hofgaard, Annika (Peer reviewed; Journal article, 2020)The transition zone between the boreal forest and Arctic tundra, the forest-tundra ecotone (FTE), is an area of high ecological and climatological significance. Despite its importance, a globally consistent high spatial ... -
Drivers of treeline shift in different European mountains
Cudlin, Pavel; Klopcic, Matija; Tognetti, Roberto; Mális, Frantisek; Alados, Concepcion L.; Bebi, Peter; Grunewald, Karsten; Zhiyanski, Miglena; Andonowski, Vlatko; La Porta, Nicola; Bratanova-Doncheva, Svetlana; Kachaunova, Eli; Edwards-Jonášová, Magda; Ninot, Josep Maria; Rigling, Andreas; Hofgaard, Annika; Hlásny, Tomáš; Skalák, Petr; Wielgolaski, Frans Emil (Journal article; Peer reviewed, 2017)A growing body of evidence suggests that processes of upward treeline expansion and shifts in vegetation zones may occur in response to climate change. However, such shifts can be limited by a variety of non-climatic ... -
Effekter av treslagsskifte, treplanting og nitrogengjødsling i skog på biologisk mangfold. Kunnskapsgrunnlag for å vurdere skogtiltak i klimasammenheng
Aarrestad, Per Arild; Bendiksen, Egil; Bjerke, Jarle Werner; Brandrud, Tor Erik; Hofgaard, Annika; Rusch, Graciela; Stabbetorp, Odd Egil (NINA Rapport;959, Research report, 2013-03)Som oppfølging av St. meld. 21 Norsk klimapolitikk (2011-2012) vurderer regjeringen ulike tiltak for å nå målet om et nettoutslipp av klimagasser innen 2030. I denne sammenheng skal Klima og forurensingsdepartementet (Klif), ... -
Forests dynamics in the montane–alpine boundary: a comparative study using satellite imagery and climate data
Dinca, Lucian; Nita, Mihai Daniel; Hofgaard, Annika; Alados, Concepcion L.; Broll, Gabriele; Borz, Stelian Alexandru; Wertz, Bogdan; Monteiro, Antonio T. (Journal article; Peer reviewed, 2017)Over the past decades, the altitudinal and latitudinal advance of forest lines has increased due to global warming and the abandonment of less productive areas previously subject to agricultural activities. The intensity ... -
Global fading of the temperature–growth coupling at alpine and polar treelines
Camarero, Jesús Julio; Gazol, Antonio; Sánchez-Salguero, Raúl; Fajardo, Alex; McIntire, Eliot J. B.; Gutiérrez, Emilia; Batllori, Enric; Boudreau, Stephane; Carrer, Marco; Diez, Jeff; Dufour-Tremblay, Geneviève; Gaire, Narayan P.; Hofgaard, Annika; Jomelli, Vincent; Kirdyanov, Alexander V.; Lévesque, Esther; Liang, Eryuan; Linares, Juan Carlos; Mathisen, Ingrid Ertshus; Moiseev, Pavel A.; Sangüesa-Barreda, Gabriel; Shrestha, Krishna B.; Toivonen, Johanna M.; Tutubalina, Olga V.; Wilmking, Martin (Peer reviewed; Journal article, 2021)Climate warming is expected to positively alter upward and poleward treelines which are controlled by low temperature and a short growing season. Despite the importance of treelines as a bioassay of climate change, a global ... -
Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal
Rayback, S.A.; Shrestha, K.B.; Hofgaard, Annika (Journal article; Peer reviewed, 2017)Trees and shrubs found in the forest-tundra ecotone (FTE) are considered to be highly sensitive to climate change, but their response to climatic drivers is only partially understood. We use dendrochronological techniques ... -
The Historical Complexity of Tree Height Growth Dynamic Associated with Climate Change in Western North America
Messaoud, Yassine; Reid, Anya M.; Tchebakova, Nadezhda M.; Goldman, Jack A.; Hofgaard, Annika (Peer reviewed; Journal article, 2022)The effect of climate on tree growth has received increased interest in the context of climate change. However, most studies have been limited geographically and with respect to species. Here, sixteen tree species of western ... -
The missing pieces for better future predictions in subarctic ecosystems: A Tornetra¨sk case study
Pascual, Didac; Åkerman, Jonas; Becher, Marina; Callaghan, Terry V.; Christensen, Torben R.; Dorrepaal, Ellen; Emanuelsson, Urban; Giesler, Reiner; Hammarlund, Dan; Hanna, Edward; Hofgaard, Annika; Jin, Hongxiao; Johansson, Cecilia; Jonasson, Christer; Klaminder, Jonatan; Karlsson, Jan; Lundin, Erik; Michelsen, Anders; Olefeldt, David; Persson, Andreas; Phoenix, Gareth K.; Ra˛czkowska, Zofia; Rinnan, Riikka; Ström, Lena; Tang, Jing; Varner, Ruth K.; Wookey, Philip; Johansson, Margareta (Peer reviewed; Journal article, 2020)Arctic and subarctic ecosystems are experiencing substantial changes in hydrology, vegetation, permafrost conditions, and carbon cycling, in response to climatic change and other anthropogenic drivers, and these changes ... -
Monitoring climate sensitivity shifts in tree-rings of Eastern Boreal North America using model-data comparison. Shifts in tree growth sensivity to climate
Ols, Clementine; Girardin, Martin P.; Hofgaard, Annika; Bergeron, Yves; Drobyshev, Igor (Journal article; Peer reviewed, 2017)The growth of high-latitude temperature-limited boreal forest ecosystems is projected to become more constrained by soil water availability with continued warming. The purpose of this study was to document ongoing shifts ... -
Non-stationary Response of Tree Growth to Climate Trends Along the Arctic Margin
Hofgaard, Annika; Ols, Clementine; Drobyshev, Igor; Kirchhefer, Andreas J.; Sandberg, Staffan; Söderström, Lars (Journal article; Peer reviewed, 2018)Climate change modulates cold-marginal forest ecosystems through changing growth constraints. Understanding spatiotemporal variations in climate– growth relationships is essential to project forest ecosystem dynamics, and ... -
Overvåking av palsmyr. Andre gjenanalyse i Ostojeaggi, Troms. Endringer fra 2004 til 2014
Hofgaard, Annika; Myklebost, Heidi Elin (NINA Rapport;1164, Research report, 2015)Overvåking av palsmyr er et nasjonalt overvåkingsprogram initiert av Direktoratet for naturfor-valtning (nåværende Miljødirektoratet), med oppstart i 2004. Programmet omfatter i alt seks utvalgte overvåkingsområder fra ... -
Overvåking av palsmyr. Første 5-årsundersøkelse i Haukskardmyrin og Haugtjørnin, Dovre, 2010
Hofgaard, Annika; Wilmann, Bodil Helene (NINA rapport;717, Research report, 2011)Hofgaard, A. & Wilmann, B. 2011. Overvåking av palsmyr. Første 5-årsundersøkelse i Haukskardmyrin og Haugtjørnin, Dovre, 2010. – NINA Rapport 717. 42 s. Overvåking av palsmyr er et nasjonalt overvåkingsprogram initiert ... -
Overvåking av palsmyr. Første 5-årsundersøkelse i Ostojeaggi, Troms, 2009
Hofgaard, Annika; Wilmann, Bodil Helene (NINA rapport;586, Research report, 2010)Hofgaard, A. & Wilmann, B. 2010. Overvåking av palsmyr. Første 5-årsundersøkelse i Ostojeaggi, Troms, 2009. – NINA Rapport 586. 42 s. Overvåking av palsmyr er et nasjonalt overvåkingsprogram initiert av Direktoratet for ... -
Overvåking av palsmyr. Første gjenanalyse i Ferdesmyra, Øst-Finnmark. Endringer fra 2008 til 2013
Hofgaard, Annika; Myklebost, Heidi Elin (NINA Rapport;1035, Research report, 2014-04)Overvåking av palsmyr er et nasjonalt overvåkingsprogram initiert av Direktoratet for naturforvaltning (nåværende Miljødirektoratet), med oppstart i 2004. Programmet omfatter i alt seks utvalgte overvåkingsområder fra ... -
Overvåking av palsmyr. Første gjenanalyse i Goahteluoppal, Vest-Finnmark. Endringer fra 2006 til 2011
Hofgaard, Annika; Myklebost, Heidi Elin (NINA Rapport;841, Research report, 2012)Overvåking av palsmyr er et nasjonalt overvåkingsprogram initiert av Direktoratet for naturforvaltning, med oppstart i 2004. Programmet omfatter i alt seks utvalgte overvåkingsområder fra Finnmark i nord til Dovre i sør. ...