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:
Xylota tarda Xylota tarda Xylota tarda is a Palearctic species of hoverfly. External images For terms see Morphology of Diptera<br> Wing length 5·5-8·5 mm. Large red areas on black abdomen. Wing membrane not infuscated. Dorso-apical white bristle on metatarsus 1. Antero-dorsal pale hairs on the basal half of femur 3 uniform not longer than 1/4 the depth of femur. The male genitalia are figured by Hippa (1968). The larva is illustrated in colour by Rotheray (1994) ). See references for determination (but see Speight for contradiction) Palearctic Fennoscandia South to Spain. Northern Italy (Apennines) Slovenia. Ireland East through Central Europe into European