Distribution patterns of Astragalus in the old world based on some selected sections

Authors

  • A. Jalili Prof., Department of Botany, Research Institute of Forest and Rangelands, Tehran, Iran
  • A.A. Maassoumi Prof., Department of Botany, Research Institute of Forest and Rangelands, Tehran, Iran
Abstract:

The geographic distribution of Astragalus L. (Fabaceae) was analyzed using a database of 12377 geo-referenced observations. In the old world (including Asia, Africa and Europe) there are ca. 2900 euploid species classified in 166 distinct sections. In this study using geographic information system (GIS) by means of DIVA-GIS (ver. 4) distribution map of some more important sections in the old world was illustrated. A grid of 50 × 50 km cells were used to map the biodiversity and species richness. These maps showed west Asia with over half of all species and ca. 1000 endemics is most significant region. 

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distribution patterns of astragalus in the old world based on some selected sections

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Journal title

volume 13  issue 1

pages  39- 56

publication date 2012-08-22

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