Great Bustard Memorandum of Understanding for governments, scientists, conservation bodies and others to monitor and coordinate conservation efforts. These efforts need to focus on active habitat management and on maintaining large areas of non-intensive farming systems. The MoU only covers the middle-European populations of the great bustard ("Otis tarda"). Several remnant great bustard populations that can be found in, inter alia, Spain, Portugal, Morocco, Russia, Turkey, Kazakhstan, China and Mongolia are not included. All signatories shall endeavour to work closely together and with appropriate international organizations to improve the conservation status of the great bustard throughout its breeding, migratory and wintering range. Therefore, they shall:
Porphyria cutanea tarda Porphyria cutanea tarda Porphyria cutanea tarda (PCT) is the most common subtype of porphyria. The disease is named because it is a porphyria that often presents with skin manifestations later in life. The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. It is a component of hemoglobin, the molecule that carries oxygen in the blood. Hepatoerythropoietic porphyria has been described as a homozygous form of porphyria cutanea tarda, although it can also be caused if two different mutations occur at the