Ata-Kuh forest, a preserved area within Hyrcanian relict forests, with an area of 700 ha is located in north of Iran. Based on floristic studies from 2011 through 2012, 194 vascular plant species were identified belonging to 143 genera and 66 families. Among our samples, 24 taxa were endemic to Hyrcanian area. The largest families in the area were Rosaceae (10.3 %), Poaceae (9.7 %), Asteraceae ...

Environmental (topography, climate) features have an important influence on plant diversity and richness of Iran. Topography is from –28m which is close to Caspian Sea to 5678m which is located on the Alborz Mountain. Two mountains (Alborz and Zagrosss) prevent moist air moving to the centre of Iran. On the basis of environmental factors, four ecological zones with specific plant richness from ...

The Oak genus (Quercus L.) is one of the most important genera of beach family (Fagaceae) that has ecological and economical importance. Chestnutleaf oak (Quercus castaneifolia C.A. Mey.) is native to Iran and distributed in Hyrcanian forests. Pure and mixed stands of this taxon have covered about 6.5 % of Hyrcanian forests. This study was undertaken to evaluate the effects of ecological factor...

The genus Dolichocephala Macquart, 1823 of the family Empididae is recorded for first time from Iran and Azerbaijan, including one species D. monae Joost, 1981. A neighbour-joining tree based on genetic divergences CO1 gene within nine provided. In addition, Oropezella Collin, 1926 Hybotidae (one O. sphenoptera (Loew, 1873)) two subgenus Empis s. str. Linnaeus, 1758 (E. (E.) earina 1960 E. temr...

Humus forms are good indicators of environmental conditions and thus important in forest ecological processes. Altitudinal gradients considered as natural laboratory for evaluating soil processes humus form distribution. The objective this study was to evaluate the macromorphology along an altitudinal gradient (0-2000 m a.s.l.) covered with plain forest, mixed pure forests forest-grassland ecot...

Saproxylic beetles play a vital role in conservation as indicators of the status unmanaged forests. In light concern regarding adverse impact anthropogenic pressure on biodiversity, an essential step forest conserva-tion strategy is identification saproxylic beetles. The Hyrcanian forests are unique remnant natural broadleaf temperate forests, with evolutionary history that can be traced to Ter...

the oak genus (quercus l.) is one of the most important genera of beach family (fagaceae) that has ecological and economical importance. chestnutleaf oak (quercus castaneifolia c.a. mey.) is native to iran and distributed in hyrcanian forests. pure and mixed stands of this taxon have covered about 6.5 % of hyrcanian forests. this study was undertaken to evaluate the effects of ecological factor...