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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 * , Alireza Kasaei2
Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran. & Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran., Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran. , attaeian94@gmail.com
2- Department of NatureEngineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran.
Abstract:   (1281 Views)

Recognition of species frequency distribution patterns in a plant community is one of the important indicators for studying plant community dynamics. In order to model the suitability of Astragalus spp. habitat in the Tarikdareh rangelands of Hamedan, the Ecological Niche Factor Analysis (ENFA) method was used within the Biomapper software environment. In this study, the presence point layer of Astragalus spp. was prepared through field sampling at 50 points, along with latitude and longitude data, and then transferred to the Biomapper software for further analysis alongside environmental layers. Based on the results of this model, the marginalization, specialization, and tolerance values were 1.55, 6.35, and 0.17, respectively.The marginalization value greater than 1 indicates that Astragalus spp. prefers habitat conditions above the average, while the low tolerance index (0.17) suggests that the species is specialized in its habitat requirements. The desirability map derived from the ENFA model indicates that the species is more densely distributed in areas with slopes exceeding 25 degrees and in the southern, southwestern, and southeastern directions compared to other areas.

Article number: 10
Keywords: Ecological Nich Factor Analysis, Potential Distribution, GIS, Biomapper, Astragalus spp.
Full-Text [PDF 1938 kb]   (582 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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