Investigation on oak regeneration in Yasudj forest Investigation of phyllotaxy as an identification feature and its characteristics on some of the trees and shrubs of Iran The influence of vegetation structure and tree diversity on bird species richness in patchily distributed woodlands of Karkas Protected Area, Isfahan Province Zagros Phytogeography- a case study in altitudinal distribution of woody species in Lorestan province Phenological patterns in a number of trees and shrubs species Investigation of Leaf color changes in 44 trees and shrub in Isfahan Green space