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Paper Information

Journal:   ROSTANIHA   2012 , Volume 13 , Number 1 (42); Page(s) 39 To 56.
 
Paper: 

DISTRIBUTION PATTERNS OF ASTRAGALUS IN THE OLD WORLD BASED ON SOME SELECTED SECTIONS

 
 
Author(s):  MAHMOODI M.*, MAASSOUMI A.A., JALILI A.
 
* 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. Our studies demonstrated biodiversity centers of Astragalus chiefly located in Iran and Afghanistan. Complementarily analysis for determining conservation management priorities according to mathematical models (Rebelo Algorithm) has been done and locations were illustrated on map. Rare species were specified based on extent of distribution area, number of observations and maximum distance between observations of each species. Also, variations of species richness along with increasing of altitude indicated that ecological optimum for Astragalus is ca.2000 m. In conclusion based on our present-only data and "Ecological Niche Modeling", predictive distribution map for the entire old world using BIOCLIM model has been provided.

 
Keyword(s): BIODIVERSITY, ECOLOGICAL NICHE MODELING, ELEVATIONAL DISTRIBUTION, ENDEMICS, GIS (GEOGRAPHIC INFORMATION SYSTEM), OLD WORLD
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

MAHMOODI, M., & MAASSOUMI, A., & JALILI, A. (2012). DISTRIBUTION PATTERNS OF ASTRAGALUS IN THE OLD WORLD BASED ON SOME SELECTED SECTIONS. ROSTANIHA, 13(1 (42)), 39-56. https://www.sid.ir/en/journal/ViewPaper.aspx?id=276988



Vancouver: Copy

MAHMOODI M., MAASSOUMI A.A., JALILI A.. DISTRIBUTION PATTERNS OF ASTRAGALUS IN THE OLD WORLD BASED ON SOME SELECTED SECTIONS. ROSTANIHA. 2012 [cited 2021August01];13(1 (42)):39-56. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=276988



IEEE: Copy

MAHMOODI, M., MAASSOUMI, A., JALILI, A., 2012. DISTRIBUTION PATTERNS OF ASTRAGALUS IN THE OLD WORLD BASED ON SOME SELECTED SECTIONS. ROSTANIHA, [online] 13(1 (42)), pp.39-56. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=276988.



 
 
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