DasCladonio rangiferinae-Pinetum sylvestris des Landschaftsschutzgebietes Křivoklátsko (Mittelböhmen) und seine Stellung im phytozönologischen System
The pine forest with an undergrowth of fruticose lichens—Cladonio rangiferinae-Pinetum sylvestris (Kobenza 1930) em.Passarge 1956 from the protected landscape area KřizoklätsCladonio-Pinetum comprises a permanent pine forest community occurring naturally on a hard base and nutrient deficient siliceous rocks in the semiconvex parts of the steep slopes of narrow side-valleys of the Berounka river. The soil type of this community is dystrophic ranker. The phytosociological composition of theCladonio-Pinetum is documented by the table of relevés, the habitat by chemical analyses of the soil.
Bestimmungsbuch und Systematik der Böden Europas
Libro de 392 paginas, publicado en Stutgart por el Consejo Superior de Investigaciones Cientificas en 1952. Ferdinand Enke Verlag (Editorial) - Incluye 3 figuras en las paginas 33, 34 y 35; ademas incorpora XXVI (26) laminas a todo color excepto la I y la II.
Die Populationsdynamik Von Canthocampt Us Staphylinus (Jurine) (Copepoda, Harpacticoida) Im Litoral Des Bodensees
The population dynamics of Canthocamptus staphylinus in the littoral zone of Lake Constance are described (fig. 2). Adult animals aestivate as cysts. The main part of the population emerges from the cysts in autumn. During the resting stage and the first spell after emerging, mortality is very low (fig. 3). Reproduction, expressed as numbers of ovigerous females, begins in November and reaches its maximum in January. The new generation becomes adult in May/June and encysts without previous reproduction. According to Sarvala (1979) it may be possible, that in littoral populations dormancy is induced by long day periods and temperatures of over 12° C (figs. 1, 2). In the profundal zone C. staphylinus also forms cysts, however, both light and temperature are not likely to induce this stage in depths of over 60 m.