Elburz Range forest steppe and Caspian snowcock ("Tetraogallus caspius"). Eagles here are the lesser spotted eagle ("Aquila pomarina") and the golden eagle ("Aquila chrysaetos"). The ecoregion is also a breeding area for the little bustard ("Tetrax tetrax") and black woodpecker ("Dryocopus martius"). Logging and agriculture have reduced the range of the forests in this ecoregion, dams have disrupted river flows, and overgrazing has degraded habitat. Protected areas with Elburz Range forest steppe in Iran include Golestan National Park and the Ghorkhod Protected Area, both in Golestan Province and totalling . Elburz Range forest steppe The Elburz Range forest steppe ecoregion is an arid, mountainous
Porphyria cutanea tarda the body. Certain mutations in the "HFE" gene cause hemochromatosis (an iron overload disorder). People who have these mutations are also at an increased risk of developing porphyria cutanea tarda. In the 20% of cases where porphyria cutanea tarda is inherited, it is inherited in an autosomal dominant pattern, which means one copy of the altered gene is sufficient to decrease enzyme activity and cause the signs and symptoms of the disorder. While inherited deficiencies in uroporphyrinogen decarboxylase often lead to the development of PCT, there are a number of risk factors that can both cause and exacerbate the symptoms