The current increase of severe droughts associated with climate change is one the main causes observed dieback in Mediterranean holm-oak ( Quercus Ilex subs ballota ) forests. Effects forest soils are greatly variable and depend on a number local factors, but generally include increased soil organic C due to litter inputs, alterations nutrient contents, changes nitrogen cycle, detrimental effec...

Research Highlights: The regeneration of Quercus species is usually very difficult in many oak woodlands transformed by livestock farming. Some studies have reported that shrubs can facilitate regeneration. However, the strength interaction may vary depending on, among other factors, shrub and stress tolerance species. Moreover, further are necessary to clarify relative importance two facilitat...

objective: tyrosinase as the key enzyme in melanin biosynthesis, involves in determining the color of mammalian skin and hair. a variety of dermatological disorders, come up from an unnecessary level of epidermal pigmentation. plants are low-cost and rich sources of active compounds.  methods: more than seventy native plants collected from the central region of kurdistan province collected. inh...

Objective: Tyrosinase as the key enzyme in melanin biosynthesis, involves in determining the color of mammalian skin and hair. A variety of dermatological disorders, come up from an unnecessary level of epidermal pigmentation. Plants are low-cost and rich sources of active compounds.  Methods: More than seventy native plants collected from the central region of Kurdistan province collected. Inh...

Last decades increase in reported events of drought-induced tree mortality evidences how climate-change is transforming forest ecosystems all over the world. The parallel human pressure land also causing major changes functioning but it remains unclear these two driving forces interact between them. We combined tree-ring data with aboveground cover, leaf area index (LAI), soil variables, and st...