Flora of Jahanbin mountain area in Chaharmahal and Bakhtiari province, located between Shahrekord and Hafshejan cities, with 12’187 hectares and 2’150 to 3’300 m elevation above sea level, is investigated. Vegetation of this area comprises of 273 species, 189 genera and 42 families. Asteraceae (37 species, 13.5%), Poaceae (31 species, 11.3%) and Fabaceae (25 species, 9.1%) were the most importa...

astragalus kurdaicus saposhn. ex sumn is now considered as an additional species of the flora of iran. this species was introduced from middle asia, and is also recorded from ne iran. it belongs to astragalus section cystium.

edaphic mesostigmata are important, because these feed on arthropods and other invertebrates which may affect on natural equilibrium position of oter living micro-organisms. in order to study the fauna of mesostigmatid mites, samples of soil, litter were collected from different parts of esfahan region. mites were extracted by means of berlese funnel, cleared in lactic acid and mounted with hoy...

Interest in developing gene drive systems to control invasive species is growing, with New Zealand reportedly considering the nascent technology as a way to locally eliminate the mammalian pests that threaten its unique flora and fauna. If gene drives successfully eradicated these invasive populations, many would rejoice, but what are the possible consequences? Here, we explore the risk of acci...

PALEONTOLOGY AND THE EXPLOITATION of natural resources, particularly coal and limestone, have an old and firmly established connection. This is especially important in deposits of Pennsylvanian age, where coal mining has helped to fill the collection drawers of museums and universities across North America and Europe. Unlike most natural exposures, those created by mining frequently reveal whol...