in order to investigate variations in plant diversity in dr. dorostkar's forest reservoir, located in gisoum talesh, 44 sampling plots were applied by the randomized-systematic method. the diameter of all tree species (dbh?5 cm) was measured in 400 m2 (20×20 m) square sampling plots. in addition, the number of individuals of shrubs and saplings (dbh?5 cm) were enumerated in circular 100 m2...

the present survey was carried out in oak (quercus brantii lindl.) woodlands of arghvan valley protected area, in ilam province, western iran. the main aim of this study was to survey the understory vegetation of oak in different classes of altitude (1400-1600, 1600-1800 and >1800 m) in the southern aspects, and their relationship with physical and chemical properties of soil. four transects, w...

Bale Mountains National Park is one of the protected areas in Ethiopia that holds largest area Afroalpine habitat Africa and second stand moist tropical forest. Nevertheless, human settlements, overgrazing, recurrent fire are main problems park. This study aimed to determine effects human-induced landscape change floristic composition structure The vegetation data were collected systematically ...

An extensive survey was carried to study the diversity of predators associated with mealybug complex in cassava growing districts viz., Salem, Namakkal, Erode, Tiruppur and Coimbatore Tamil Nadu, India from January September, 2021. The revealed dominance Phenacoccus manihoti Matile-Ferrero 1977 (Hemiptera: Pseudococcidae) than other species all surveyed districts. incidence P. ranged 12 90 per ...

Among phytophagous insects, the Heteroptera (Hemiptera), true bugs, are economically important because of damage crops by sucking plant organs and transmitting pathogens. The diversity distribution species associated with fruits were investigated in hazelnut, cherry, apple orchards crop season Bolu Düzce provinces from May 2015 to October 2016. collected a Steiner funnel three fruit varieties t...

Avian species composition profile and feeding guilds under the aerobic rice field. In Malaysia, productionsystem is an alternative approach to growing in a water-scarce environment. Like irrigated rice, also cansustain diversity of avian fauna. The current status birds fields Malaysia especially ricecondition has not been widely researched. Therefore, this study aims document richness, guildsof...

Abstract. Rangkuti AB, Hartini KS, Susilowati A, Rambey R, Harahap MM, Arinah H, Irmayanti L, Pamoengkas P, Indriani F, Peniwidiyanti, Ruhidi A. 2023. Structure, composition and diversity of tree species in Martelu Purba Nature Reserve, North Sumatra, Indonesia. Biodiversitas 24: 78-85. Reserve is one the conservation areas Sumatra that functions to protect biodiversity. However, there limited ...