Ecological Niche Modelling and Potential Distribution of Artemisia sieberi in the Iranian Steppe Vegetation

Artemisia sieberi Besser occurs in many parts of the Irano-Turanian floristic region, which is mostly distributed throughout Iranian plateau, especially Iran. This study aimed to identify effect soil and topography variables on A. distribution. We used canopy cover data fit models using generalized additive (GAMs). The results showed that response pattern along with gradient clay, saturation moisture, nitrogen acidity followed monotonic increase model, its percentage augmented by increasing values factors. Conversely, decreased amount sand, bare geographic aspect. responses are contrast niche theory. relationship between species gradients silt, salinity, lime percentage, organic carbon, altitude, land slope, litter, gravel stone mean annual precipitation temperature a unimodal model (consistent theory). optimal growth limits for these factors were 32%, 1.75 ds/m, 35%, 1.3%, 2000 m, 43%, 10%, 250 mm 15 °C, respectively. Our highlight environmental factors, such as texture, lime, precipitation, altitude had quantifiable effects performance sieberi. findings could provide useful information improvement, restoration conservation programs. However, further comprehension species–environment needed predict climate change habitat.