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- Circumpolar Arctic Region Floristic Provinces
Circumpolar Arctic Region Floristic Provinces
Feb 10, 2011
(Last modified May 13, 2011)
Uploaded by
Conservation Biology Institute
- Description:
- Circumpolar Arctic Region Floristic Provinces data theme, used in the creation of the Circumpolar Arctic Vegetation Map. Floristic sectors characterize the considerable east-west floristic variation within the subzones. The more northern Arctic bioclimate subzones have a relatively consistent core of Arctic plant species that occur around the circumpolar region. Further south, local east-west variation is related to a variety of factors, including different paleohistories and the greater climatic heterogeneity. Large north-south trending mountain ranges, primarily in Asia, have also restricted the exchange of species between parts of the Arctic. Yurtsev (1994) delineated six floristic provinces and 20 subprovinces and discussed their characteristics. The Pan-Arctic Flora project (Elvebakk et al. 1999) has accepted Yurtsev's division in principle, but PAF uses the term "sectors" to replace Yurtsev's "subprovinces" and has grouped the sectors somewhat differently. The main change is a new North Atlantic group and the inclusion of Yurtsev's Baffin-Labrador Province as part of the North Atlantic group. The sectors described here are based on Elvebakk et al. (1999). Readers interested in panarctic floristic variation within the subprovinces should read Yurtsev (1994).Integrated Landscape Units (ILUM) used to create the Circumpolar Arctic Vegetation Map (CAVM). The ILUM is the union of all individual data themes used to create the CAVM. The Circumpolar Arctic Vegetation Map shows the types of vegetation that occur across the Arctic, between the ice-covered Arctic Ocean to the north and the northern limit of forests to the south. The CAVM team grouped over 400 described plant communities into 16 different physiognomic units based on plant growth forms. An international team of arctic vegetation scientists representing the six countries of the Arctic (Canada, Greenland, Iceland, Norway, Russia, and the United States) prepared the map. Detailed descriptions of the methods used to create the map can be found at: http://www.geobotany.uaf.edu/cavm/
- Data Provided By:
-
Toolik-Arctic Geobotanical Atlas (T-AGA): http://www.arcticatlas.org/maps/
;
Alaska Geobotany Center: http://www.geobotany.uaf.edu
- Content date:
- 1993, 1995
- Citation:
-
CAVM Team. 2003. Circumpolar Arctic Vegetation Map. Scale 1:7,500,000.
Conservation of Arctic Flora and Fauna (CAFF) Map No. 1. U.S. Fish and
Wildlife Service, Anchorage, Alaska.
- Contact Organization:
- Alaska Geobotany Center
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This work is licensed under a Creative Commons Attribution 3.0 License.
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