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By J. B. Ørbæk, R. Kallenborn, I. Tombre, E. N. Hegseth, S. Falk-Petersen, A. H. Hoel (auth.), Dr. Jon Børre Ørbæk, Dr. Roland Kallenborn, Dr. Ingunn Tombre, Dr. Else N. Hegseth, Dr. Stig Falk-Petersen, Dr. Alf H. Hoel (eds.)

This ebook addresses the numerous environmental adjustments skilled by means of excessive range and excessive altitude ecosystems at first of the twenty first c- tury. elevated temperatures and precipitation, aid in sea ice and glacier ice, the elevated degrees of UV-radiation and the long-range tra- ported contaminants in arctic and alpine areas are pressure components that problem terrestrial and aquatic ecosystems. the big common edition within the actual parameters of those severe environments is a key consider structuring the biodiversity and biotic productiveness, and the impression of the recent pressure components might be serious for the inhabitants constructions and the - teraction among species. those adjustments can also have socio-economic results if the alterations have an effect on the bio-production, which shape the root for the marine and terrestrial nutrition chains. The publication is uniquely multidisciplinary and offers examples of va- ous points of latest environmental swap in arctic and alpine - gions. The 21 chapters of the publication are organised lower than the fields of •Climate swap and atmosphere reaction, •Long variety delivery of ballot- ants and ecological affects, and •UV radiation and organic results, every one additionally together with elements of the •Socio-economic results of environmental swap. The introductory bankruptcy offers and explains the inner c- nection and integration of all chapters. The further worth of those stories and review-like manuscripts from varied disciplines expectantly yields new information regarding the built-in features of environmental change.

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Mar Pollut Bull 44(9):861-869 Lefauconnier B, Hagen JO, Ørbæk JB, Melvold K and Isaksson E (1999) Glacier balance trends in the Kongsfjorden area, western Spitsbergen, Svalbard, in relation to the climate. Polar Research 18 (2): 307-313 Macdonald RW, Harner T, Fyfe J (2005) Recent climate change in the Arctic and its impact on contaminant pathways and interpretation of temporal trend data. Science of the Total Environment 342 (1-3): 5-86 Madronich S, Velders GJM, Daniel JS, Murari Lal M, McCullogh A and Slaper H (1999) Chapter 11.

United Nations Environmental Program, ISBN92-807-2312-X Wiencke C, Gómez I, Pakker H, Flores-Moya A, Altamirano M, Hanelt D, Bischof K, Figueroa FL (2000) Impact of UV radiation on viability, photosynthetic characteristics and DNA of brown algal zoospores: Implications for depth zonation. Mar Ecol Prog Ser 197: 217-229 WMO (2003) Scientific assessment of ozone depletion 2002. 1 Introduction Over the last two decades the Arctic has emerged as a region of dramatic environmental change. This vast part of the planet, once seen as pristine and remote, is now represented increasingly as a vulnerable and fragile place, its biodiversity and peoples at risk from climate change, contaminants and globalization.

20), the contaminant levels found in polar bears and glaucous gulls on Svalbard and Bjørnøya exceed critical effect thresholds and affect their health. Sea-ice both directly and indirectly challenge the polar bear population by reducing their habitat along with the forecasted future dramatic reduction of Arctic summer ice during this century (ACIA 2004), as well as by modifying the primary sea-ice related bio-production. Indigenous peoples of the circumpolar North fundamentally depend on the health of arctic marine and terrestrial ecosystems.

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