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:: Volume 13, Issue 26 (9-2025) ::
PEC 2025, 13(26): 139-153 Back to browse issues page
Modeling the Desirability of Astragalus spp Species using Ecological Nich Factor Analysis (ENFA) Method (Case study: Tarikdareh Rangelands, Hamadan)
Behnaz Attaeian * , Ali Kasaei2
Malayer University, Nature Engineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran. , attaeian94@gmail.com
2- Department of Nature Engineering, Malayer University, Malayer, Iran.
Abstract:   (1193 Views)

Understanding species frequency distribution patterns within plant communities is crucial for studying plant community dynamics. This study aimed to model the habitat suitability of Astragalus spp. in the Tarikdareh rangelands of Hamedan using Ecological Niche Factor Analysis (ENFA) within the Biomapper software environment. Presence data for Astragalus spp. were collected through field sampling at 50 points, including latitude and longitude coordinates, and subsequently analyzed with environmental layers in Biomapper. The model results revealed marginalization, specialization, and tolerance values of 1.55, 6.35, and 0.17, respectively. A marginalization value greater than 1 suggests that Astragalus spp. prefers habitat conditions that deviate from the average, while the low tolerance index (0.17) indicates a high degree of specialization in habitat resources. The species suitability map generated by the ENFA model showed that Astragalus spp. prefers slopes greater than 25 degrees, with a higher density of distribution on southern, southwestern, and southeastern slopes.

Article number: 10
Keywords: Ecological Nich Factor Analysis, Potential Distribution, GIS, Biomapper, Astragalus spp.
Full-Text [PDF 1938 kb]   (541 Downloads)    
Type of Study: Research | Subject: Special
Received: 2024/10/8 | Accepted: 2025/04/8 | Published: 2025/09/15
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Attaeian B, Kasaei A. Modeling the Desirability of Astragalus spp Species using Ecological Nich Factor Analysis (ENFA) Method (Case study: Tarikdareh Rangelands, Hamadan). PEC 2025; 13 (26) : 10
URL: http://pec.gonbad.ac.ir/article-1-997-en.html


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Volume 13, Issue 26 (9-2025) Back to browse issues page
مجله حفاظت زیست بوم گیاهان Journal of Plant Ecosystem Conservation
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