This classic area of Silurian and Devonian stratigraphy provided a number of ecological and paleoenvironmental observations during the last decade. Comparative studies of spontaneous successions in abandoned quarries demonstrated that natural processes provide their optimum revitalization. New archaeological records, paleozoological evidence from caves and the discovery of a Late Bronze Age hillfort confirmed that the high biodiversity of this landscape has resulted from a harmonious interaction of natural processes with human activities since the 5th millennium BC. and Vojen Ložek.
30 let od vyhlášení CHKO Křivoklátsko lze tuto oblast prohlásit za botanicky nejpodrobněji prozkoumané území v České republice. Ačkoli fauna není tak soustavně prozkoumána jako flóra, množství nových poznatků svědčí o tom, že i po zoologické stránce patří Křivoklátsko mezi bohaté oblasti, kde se dosud udržela řada jinde vymizelých druhů. Intenzita výzkumu souvisí také s vyhlášením Křivoklátska jako biosférická rezervace v r. 1977, díky němuž se zde rozvíjí program Člověk a biosféra (MaB). and Now that the Protected Landscape Area has been in existence for 30 years, the Křivoklát region can be described as the area of the Czech Republic which has undergone the most detailed botanical study. Although its fauna has not been studied as systematically as its flora, new discoveries provide proof that the Křivoklát area is one of the rich regions that has seen the survival of the entire range of animal species, considered extinct in other areas. The fact that the Křivoklát area was included in the list of UNESCO Biosphere Reserves in 1977 has contributed to the intensity of research.
Influenza is a highly contagious viral di - sease of the respiratory tract. Influenza viruses infect humans as well as animals, especially birds and pigs. Over the last ten years, molecular biology methods have enabled us to explain the extraordinary mortality of the „Spanish flu“ epidemic of 1918 and other major pandemics of the 20th century. Although the so-called „pig flu“ epidemic of 2009 caused by the H1N1 virus had less grave consequences than expected, the danger of another flu pande - mic remains very serious. and Jan Konvalinka, Ladislav Machala.