Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Annika Hofgaard"'
Autor:
Ruud Scharn, Isabel S. Negri, Maja K. Sundqvist, Jørn O. Løkken, Christine D. Bacon, Alexandre Antonelli, Annika Hofgaard, R. Henrik Nilsson, Robert G. Björk
Publikováno v:
Ecology and Evolution, Vol 12, Iss 6, Pp n/a-n/a (2022)
Abstract Temperatures over the Arctic region are increasing at three times the rate of the global average. Consequently, Arctic vegetation is changing and trees are encroaching into the tundra. In this study, we examine the establishment and growth o
Externí odkaz:
https://doaj.org/article/9e616e3ccb0e4077b9a521d5df7e1614
Publikováno v:
Forests, Vol 13, Iss 5, p 738 (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 North America were used t
Externí odkaz:
https://doaj.org/article/c5d75d68e0f84672a11d762f54d59d47
Publikováno v:
Geography, Environment, Sustainability, Vol 6, Iss 3, Pp 86-93 (2013)
The goal of the research presented herein is the investigation of the morphometric and age parameters of the recruitment of forest stands formed by Larix gmellinii, as an indicator of trends in the dynamics of the northern/upper forest boundary in th
Externí odkaz:
https://doaj.org/article/dca92105148e4946b65507cc5b116983
Publikováno v:
Geography, Environment, Sustainability, Vol 5, Iss 3, Pp 28-47 (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 forests to the north. Our res
Externí odkaz:
https://doaj.org/article/c171dabc812b4701b4222e44a50ee3e1
Autor:
Ellen Dorrepaal, Annika Hofgaard, Dan Hammarlund, Terry V. Callaghan, Erik Lundin, Marina Becher, David Olefeldt, Anders Michelsen, Jan Karlsson, Ruth K. Varner, Edward Hanna, Philip A. Wookey, Riikka Rinnan, Jing Tang, Didac Pascual, Torben R. Christensen, Lena Ström, Reiner Giesler, Margareta Johansson, Hongxiao Jin, Jonas Åkerman, Cecilia Johansson, Andreas Persson, Zofia Rączkowska, Gareth K. Phoenix, Jonatan Klaminder, Christer Jonasson, Urban Emanuelsson
Publikováno v:
Pascual, D, Åkerman, J, Becher, M, Callaghan, T V, Christensen, T R, Dorrepaal, E, Emanuelsson, U, Giesler, R, Hammarlund, D, Hanna, E, Hofgaard, A, Jin, H, Johansson, C, Jonasson, C, Klaminder, J, Karlsson, J, Lundin, E, Michelsen, A, Olefeldt, D, Persson, A, Phoenix, G K, Rączkowska, Z, Rinnan, R, Ström, L, Tang, J, Varner, R K, Wookey, P & Johansson, M 2021, ' The missing pieces for better future predictions in subarctic ecosystems : A Torneträsk case study ', AMBIO, vol. 50, no. 2, pp. 375-392 . https://doi.org/10.1007/s13280-020-01381-1
Pascual, D, Åkerman, J, Becher, M, Callaghan, T V, Christensen, T R, Dorrepaal, E, Emanuelsson, U, Giesler, R, Hammarlund, D, Hanna, E, Hofgaard, A, Jin, H, Johansson, C, Jonasson, C, Klaminder, J, Karlsson, J, Lundin, E, Michelsen, A, Olefeldt, D, Persson, A, Phoenix, G K, Rączkowska, Z, Rinnan, R, Ström, L, Tang, J, Varner, R K, Wookey, P & Johansson, M 2021, ' The missing pieces for better future predictions in subarctic ecosystems : A Torneträsk case study ', Ambio, vol. 50, pp. 375–392 . https://doi.org/10.1007/s13280-020-01381-1
Pascual, D, Åkerman, J, Becher, M, Callaghan, T V, Christensen, T R, Dorrepaal, E, Emanuelsson, U, Giesler, R, Hammarlund, D, Hanna, E, Hofgaard, A, Jin, H, Johansson, C, Jonasson, C, Klaminder, J, Karlsson, J, Lundin, E, Michelsen, A, Olefeldt, D, Persson, A, Phoenix, G K, Rączkowska, Z, Rinnan, R, Ström, L, Tang, J, Varner, R K, Wookey, P & Johansson, M 2021, ' The missing pieces for better future predictions in subarctic ecosystems : A Torneträsk case study ', Ambio, vol. 50, no. 2, pp. 375–392 . https://doi.org/10.1007/s13280-020-01381-1
Ambio
Pascual, D, Åkerman, J, Becher, M, Callaghan, T V, Christensen, T R, Dorrepaal, E, Emanuelsson, U, Giesler, R, Hammarlund, D, Hanna, E, Hofgaard, A, Jin, H, Johansson, C, Jonasson, C, Klaminder, J, Karlsson, J, Lundin, E, Michelsen, A, Olefeldt, D, Persson, A, Phoenix, G K, Rączkowska, Z, Rinnan, R, Ström, L, Tang, J, Varner, R K, Wookey, P & Johansson, M 2021, ' The missing pieces for better future predictions in subarctic ecosystems : A Torneträsk case study ', Ambio, vol. 50, pp. 375–392 . https://doi.org/10.1007/s13280-020-01381-1
Pascual, D, Åkerman, J, Becher, M, Callaghan, T V, Christensen, T R, Dorrepaal, E, Emanuelsson, U, Giesler, R, Hammarlund, D, Hanna, E, Hofgaard, A, Jin, H, Johansson, C, Jonasson, C, Klaminder, J, Karlsson, J, Lundin, E, Michelsen, A, Olefeldt, D, Persson, A, Phoenix, G K, Rączkowska, Z, Rinnan, R, Ström, L, Tang, J, Varner, R K, Wookey, P & Johansson, M 2021, ' The missing pieces for better future predictions in subarctic ecosystems : A Torneträsk case study ', Ambio, vol. 50, no. 2, pp. 375–392 . https://doi.org/10.1007/s13280-020-01381-1
Ambio
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 are likely to continue over th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c084b54e07e450e78037f4a12de3780
https://pure.au.dk/portal/da/publications/the-missing-pieces-for-better-future-predictions-in-subarctic-ecosystems(b39edbe8-1a55-4008-9f4c-0ff293e53054).html
https://pure.au.dk/portal/da/publications/the-missing-pieces-for-better-future-predictions-in-subarctic-ecosystems(b39edbe8-1a55-4008-9f4c-0ff293e53054).html
Autor:
Alex Fajardo, Marco Carrer, Vincent Jomelli, Enric Batllori, Johanna M. Toivonen, Esther Lévesque, Eliot J. B. McIntire, Antonio Gazol, Olga Tutubalina, Martin Wilmking, Emilia Gutiérrez, J. Julio Camarero, Ingrid Ertshus Mathisen, Juan Carlos Linares, Pavel Moiseev, Jeff Diez, Eryuan Liang, Krishna B. Shrestha, Gabriel Sangüesa-Barreda, Alexander V. Kirdyanov, Stéphane Boudreau, Raúl Sánchez-Salguero, Geneviève Dufour-Tremblay, Annika Hofgaard, Narayan Prasad Gaire
Publikováno v:
Global Change Biology
Global Change Biology, 2021, 27 (9), pp.1879--1889. ⟨10.1111/gcb.15530⟩
Global Change Biology, 2021, 27 (9), pp.1879--1889. ⟨10.1111/gcb.15530⟩
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 field assessment and poste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a3a712260cdb10403e5b4a3fda35303
https://hdl.handle.net/11250/2763774
https://hdl.handle.net/11250/2763774
BackgroundThe climate variables effect on tree growth in boreal and temperate forests has received increased interest in the global context of climate change. However, most studies are geographically limited and involved few tree species. Here, sixte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07220f4b6b2c5849d4d47855a43728c1
https://doi.org/10.21203/rs.3.rs-135011/v1
https://doi.org/10.21203/rs.3.rs-135011/v1
© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. 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 impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba1d172121842af3c559c4c107011124
https://www.repository.cam.ac.uk/handle/1810/308221
https://www.repository.cam.ac.uk/handle/1810/308221
Publikováno v:
Journal of Vegetation Science
QUESTIONS: Rising temperatures are predicted to cause upward shifts and reorganisation of mountain vegetation. This study analyses how field layer vegetation across the forest–tundra ecotone has responded over a 22‐year period. Main questions are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e541b895fbe2e82200c8f58ff8eaf574
https://hdl.handle.net/11250/2661446
https://hdl.handle.net/11250/2661446
Autor:
Zuzanna M. Swirad, Annika Hofgaard, Ingrid Ertshus Mathisen, Steven D. Mamet, Karen A. Harper, Olga Tutubalina, W. Gareth Rees, David M. Cairns, Stéphane Boudreau
Publikováno v:
Global Change Biology
Recent climate warming and scenarios for further warming have led to expectations of rapid movement of ecological boundaries. Here we focus on the circumarctic forest-tundra ecotone (FTE), which represents an important bioclimatic zone with feedbacks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06559c30d5bbf7813352c73c9c339846
https://hdl.handle.net/11250/2654042
https://hdl.handle.net/11250/2654042