Potential habitat modeling of endemic species is an appropriate method to maintain biodiversity, ecosystem function and rehabilitation of rangeland ecosystems. Astragalus caragana, A. cyclophyllon and A. podolobus are endemic in Iran's rangelands and some neighboring countries. The three native species could endure environmental stresses due to their distinctive ecophysiological characteristics. They play important roles in sustainable pastures production, recreation and improvement. They suffer severe threat from many factors including; grazing, agriculture and invasive exotic species. We analyzed the potential habitat of three native plant species in central Iran basing on the grid map with the resolution of 1-km. We used inventory records from field surveys, herbarium collections and 22 environmental factors to explore the environmental influences on given species distribution by Maximum entropy (Maxent) model. Maxent is a species distribution model that uses species occurrence and environmental data for predicting potential species. The results of our study indicated species occurrence has strong correlation with environmental factors such as mean temperature of wettest season, elevation and precipitation of coldest season. We evaluated the model accuracy by AUC (area under the receiver operating characteristic curve) based on an independent test data set. AUC values indicated the high power of Maxent to create potential habitat map (AUC A. caragana =0.988, AUC A. cyclophyllon =0.927, AUC A. podolobus =0.923). It is important to consider that AUC values tend to be lower for species that have broad distribution scope, such as A. podolobus distribution. Most suitable potential habitat distributions of the three species were predicted in the western and southwestern parts of rangelands in Isfahan province. Visual comparisons of the actual distribution map of the three species with produced Maxent maps represent a good agreement. In general, the model demonstrated that the occurrence of the given species is highly probable when the elevation is between 2,200 and 3,000 m and mean temperature of wettest season less than 3°C. This model, therefore, can be applied to recognize potential sites for rangeland reclamation projects.
<p class="0abstract"><span lang="EN-US">The particularity of E- Assessment is that it allows to combine the assessment of personality with that of personal and interpersonal values. It is this joint assessment that makes all the richness and interest of digital assessment for human resources professionals in terms of recruitment, career management, professional orientation and assessment of soft skills.The platforms dedicated to evaluation cover several families: behavioral tests or personality tests, aptitude tests and value questionnaires. They have the particularity to measure with a certain precision dimensions clearly denied by the editor, in connection with scientific concepts. Then they statistically compare the results to a standard and a reference population. In order to assess the impact of E- Assessment t, we opted during this study at SOSIE 2nd Generation for a digital HR tool that meets the current requirements of human resources professionals for assessment in international contexts. Indeed, the work was carried out on the content of the items, the dimensions, the descriptive and interpretation reports through a reading in terms of percentiles, common behavior styles for a population of Moroccan professionals operating in various sectors of activity.</span></p>
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