University of Isfahan Taxonomy and Biosystematics 3115-9001 13 48 2021 09 23 Investigating Species Diversity of Pseudoscorpions (Arachnida: Pseudoscorpiones) in Oak Forests and Cultivated Areas of Lorestan Province, Iran بررسی تنوع گونه‌‌ای شبه عقرب‌‌ها (Arachnida: Pseudoscorpiones) در زیستگاههای جنگلی و زراعی استان لرستان، ایران 1 18 26303 10.22108/tbj.2021.129081.1164 EN Morteza Kahrarian Associate Professor, Department of Entomology, Faculty of Agriculture, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran 0000-0002-2338-6298 Mehrnoush Zamani Ph. D. Department of Entomology, Faculty of Agriculture and Natural Resources, Islamic Azad University, Arak Branch, Arak, Iran Reza Vafaei Shoushtari Assistant Professor, Department of Entomology, Faculty of Agriculture and Natural Resources, Islamic Azad University, Arak Branch, Arak, Iran Mehrad Nassirkhani Assistant Professor, Department of Entomology, Faculty of Agriculture and Natural Resources, Islamic Azad University, Arak Branch, Arak, Iran Journal Article 2021 08 23 The present study investigated the biodiversity of pseudoscorpions in two different habitats (Oak forests and<strong> </strong>cultivated areas) in Kuhdasht, Khorramabad, and Delfan during eight months in 2016. For this purpose, a cycle area of about 100m radius in each habitat was selected and the samples were gathered from 20 plots each with 200 m² inside the cycle. Soil samples were collected at a depth of 10 and a diameter of 50cm. The soil samples were then transferred to the laboratory and the specimens were extracted using Berlese trap. Different indices of biodiversity (Shannon, Simpson, and Brilloun) were calculated using Excel and SDR v.4.The comparison of species diversity in different habitats showed that Delfan (Shannon index = 2.529) had a greater diversity of species than Khorramabad (Shannon index = 2.508) and Kuhdasht (Shannon index = 2.390). The results of calculating the species structure of the pseudoscorpion population in the province showed that <em>Minniza babylonica</em>,<em> Calocheiridius centralis</em>,<em> </em>and <em>Cardiolpium bisetosum</em> were dominant in three studied counties. It was concluded that these three species were unrestricted in terms of height, temperature, and humidity in the three cities. https://tbj.ui.ac.ir/article_26303_9b4bf5759d25ba1c40409bd019668c12.pdf