Fróðskaparrit - 01.01.2004, Qupperneq 237

Fróðskaparrit - 01.01.2004, Qupperneq 237
HÆDDARÚTBREIÐSLA AV PLANTUSAMFELØGUM í FØROYUM 235 Conclusion In this study, it was possible to define three significant vegetation zones in the Faroe Islands. Older studies have defined similar vegetation zones (Bocher, 1937; Hansen, 1972), but showed different altitudinal lim- itations. We find the temperate vegetation to have an upper limit at 200 m a.s.l., com- pared to 300 m a.s.l. in older studies, while the lower limit for the alpine zone in this study is found to be at 400 m a.s 1., com- pared to 500 m a.s.l. in previous studies. This study has thus provided us with new information on the altitudinal distribution of vegetation in the Faroe Islands, which can be used as a framework for future study of climate change. Acknowledgements I would like to acknowledge Martin T. Sykes and Jonas L. Lawesson (t) for reading previous versions of this paper and Magnus Gaard and Erla Olsen for assistance with the fieldwork. This paper is a part of the project: Vegetation zones in relation to some climatic parameters on some Faroese mountains, which is partly funded by the Danish Research Council (the North Atlantic Pro- gramnte) and tlie Faroese Museum of Natural History. References Ahti, T.L., Hamet-Ahti and Jalas, J. 1968. Vegetation zones and their sections in Northwestern Europe. Ann. Bot. Fenn. 5:160-211. Billings, W.D. and Mooney, H.A. 1968. The Ecology of Arctic and Alpine Plants. Biol. Rev. 43: 481-529. Bocher, T.W. 1937. Nogle studier over Færøernes alpine vegetation. Bot. Tidskr. 44: 154-201. Bocher, T.W. 1940. Studies on the plant-geography of the North-Atlantic heath-formation. I The heath of the Faroes. Kgl. Dan. Vid. Selsk. Biol. Medd. 15, 3. Braun-Blanquet, J. 1932. Plant sociology. The study of plant communities. Reprint 1983 by Koeltz scien- tific books. Cappelen, J. and Laursen, E.V. 1998. The Climate ofThe Faroe Islands - with Climatological Standard Nor- mals, 1961-1991. Danish Meterological Institute. Technical report 98-14. Christiansen, H.H. and Mortensen L.E. 2002. Arctic mountain meteorology at the Somfelli mountain in year 2000 in the Faroe Islands. Fróðskaparrit 50: 93-110. Crawford, R.M.M. 2000. Ecological hazards of oceanic environments, review. New Pliytol, 147: 257-281. Dahl, E. 1997. Flora and Plant Sociology in Fennos- candian Tundra Areas. In: Wielgolaski, F.E. (ed.). Fennoscandian Tundra Ecosystems. Part 1. Springer Verlag: 62-67. Daniels, F.J.A. 1994. Vegetation classification in Green- land. J. Veg. Sci. 5: 791-802. Fosaa, A.M. 2001. A Review of Plant Communities of the Faroe Islands. Fróðskaparrit 48: 41-54. Fosaa, A.M., Lawesson, J.E. and Sykes, M.T. 2003. Distribution df Rauniær’s life-forms along altitudi- nal gradients in the Faroe Islands. In: Fosaa, A.M. Mountain Vegetation in the Faroe Islands in a Cli- mate Change Perspective. Thesis. Lund University: 71-84. Fosaa, A.M. 2004. Biodiversity patterns of vascular plant species in mountain vegetation in the Faroe Islands. Diversity and Distribution 10: 217-223. Fremstad, E. 1997. Vegetationstyper i Norge, NINA Temahefte 12: 1-279 Gunlaugsdottir, E. 1985. Composition and dynamic status of heathland communities in Iceland in rela- tion to recovery measures. Acta Phytogeographica Suecica 75: 1-84. Hansen, K. 1967. Edaphic conditions of vegetation types in the Faeroes. Oikos 18: 217-232. Hansen, K. 1972. Vertical vegetation zones and verti- cal distribution types in the Faeroes, Bot. Tid. 67: 33-63. Hansen, B., TuiTell, W.R. and Østerhus S. 2001. De- creasing overflow from the Nordic seas into the At- lantic Oceans through the Faroe Bank channel since 1950. Nature 411: 927-930. Hobbs, A. and Averis, B. 1991. The vegetation on the Faroe Islands in relation to British plant communi- ties. Nature Conservancy Council. CDS Note No. 53: 1-40. Hulten, E. and Fries, M. 1986. Atlas ofNorth European Vascular Plants - North of the Tropic of Cancer. Koeltz Scientific Books D-6240 Koningstein/Fed- eral Republic of Germany. Humlum, O. and Christiansen, H. 1998. Late Holocene climatic forcing of geomorphic activity in the Faroe Islands, North Atlantic Ocean. Fróðskaparrit 46:
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