Multi-Decadal Changes in Tundra Environments and Ecosystems: Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF)

Autor: Terry V. Callaghan, Craig E. Tweedie, Jonas Åkerman, Christopher Andrews, Johan Bergstedt, Malcolm G. Butler, Torben R. Christensen, Dorothy Cooley, Ulrika Dahlberg, Ryan K. Danby, Fred J. A. Daniёls, Johannes G. de Molenaar, Jan Dick, Christian Ebbe Mortensen, Diane Ebert-May, Urban Emanuelsson, Håkan Eriksson, Henrik Hedenås, Greg. H. R. Henry, David S. Hik, John E. Hobbie, Elin J. Jantze, Cornelia Jaspers, Cecilia Johansson, Margareta Johansson, David R. Johnson, Jill F. Johnstone, Christer Jonasson, Catherine Kennedy, Alice J. Kenney, Frida Keuper, Saewan Koh, Charles J. Krebs, Hugues Lantuit, Mark J. Lara, David Lin, Vanessa L. Lougheed, Jesper Madsen, Nadya Matveyeva, Daniel C. McEwen, Isla H. Myers-Smith, Yuriy K. Narozhniy, Håkan Olsson, Veijo A. Pohjola, Larry W. Price, Frank Rigét, Sara Rundqvist, Anneli Sandström, Mikkel Tamstorf, Rik Van Bogaert, Sandra Villarreal, Patrick J. Webber, Valeriy A. Zemtsov
Přispěvatelé: Systems Ecology
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Callaghan, T, Tweedie, C, Ãkerman, J, Andrews, C, Bergstedt, J, Butler, M, Christensen, T, Cooley, D, Dahlberg, U, Danby, R, Daniäls, F, de Molenaar, J, Dick, J, Mortensen, C, Ebert-May, D, Emanuelsson, U, Eriksson, H, Hedenås, H, Henry, G, Hik, D, Hobbie, J, Jantze, E, Jaspers, C, Johansson, C, Johansson, M, Johnson, D, Johnstone, J, Jonasson, C, Kennedy, C, Kenney, A, Keuper, F, Koh, S, Krebs, C, Lantuit, H, Lara, M, Lin, D, Lougheed, V, Madsen, J, Matveyeva, N, McEwen, D, Myers-Smith, I, Narozhniy, Y, Olsson, H, Pohjola, V, Price, L, Riget, F F, Rundqvist, S, Sandström, A, Tamstorf, M, Van Bogaert, R, Villarreal, S, Webber, P & Zemtsov, V 2011, ' Multi-Decadal Changes in Tundra Environments and Ecosystems: Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF) ', Ambio, vol. 40, pp. 705-716 .
Callaghan, T V, Tweedie, G E, Kerman, J A, Andrews, C, Bergstedt, J, Butler, M G, Christensen, T R, Cooley, D, Dahlberg, U, Danby, R K, Daniels, F J A, de Molenaar, J G, Dick, J, Mortensen, C E, Ebert-May, D, Emanuelsson, U, Hedena, E H, Henry, G H R, Hik, D S, Hobbie, J E, Jantze, E J, Jaspers, C, Johansson, M, Johnson, D R, Johnstone, J F, Jonasson, C, Kennedy, C, Kenney, A J, Keuper, F, Koh S. Krebs, C J, Lantuit, H, Lara, M J, Lin, D, Lougheed, V L, Madsen, J, Matveyeva, N, McEwen, D C, Myers-Smith, I H, Narozhniy, Y K, Olsson, H, Pohjola, V A, Price, L W, Riget, F, Rundqvist, S, Sandstrom, A, Tamstorf, M, van Bogaert, R, Villarreal, S, Webber, P J & Zemtsov, V A 2011, ' Multi-decadal changes in tundra environments and ecosystems: Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF). ', AMBIO: A Journal of the Human Environment, vol. 40, pp. 705-716 . https://doi.org/10.1007/s13280-011-0179-8
AMBIO: A Journal of the Human Environment, 40, 705-716. Allen Press Inc.
Aarhus University
ISSN: 0044-7447
DOI: 10.1007/s13280-011-0179-8
Popis: Understanding the responses of tundra systemsto global change has global implications. Most tundraregions lack sustained environmental monitoring and oneof the only ways to document multi-decadal change is toresample historic research sites. The International PolarYear (IPY) provided a unique opportunity for such researchthrough the Back to the Future (BTF) project (IPY project#512). This article synthesizes the results from 13 paperswithin this Ambio Special Issue. Abiotic changes includeglacial recession in the Altai Mountains, Russia; increasedsnow depth and hardness, permafrost warming, andincreased growing season length in sub-arctic Sweden;drying of ponds in Greenland; increased nutrient availabilityin Alaskan tundra ponds, and warming at mostlocations studied. Biotic changes ranged from relativelyminor plant community change at two sites in Greenland tomoderate change in the Yukon, and to dramatic increasesin shrub and tree density on Herschel Island, and in subarcticSweden. The population of geese tripled at one sitein northeast Greenland where biomass in non-grazed plotsdoubled. A model parameterized using results from a BTFstudy forecasts substantial declines in all snowbeds andincreases in shrub tundra on Niwot Ridge, Colorado overthe next century. In general, results support and provideimproved capacities for validating experimental manipulation,remote sensing, and modeling studies. IPY project 512 Back to the Future
Databáze: OpenAIRE