Population and forest dynamics during the Central European Eneolithic (4500–2000 BC)

The population boom-and-bust during the European Neolithic (7000–2000 BC) has been the subject of lively discussion for the past decade. Most of the research on this topic was carried out with help of summed radiocarbon probability distributions. We aim to reconstruct population dynamics within the catchment of a medium sized lake on the basis of information on the presence of all known past human activities. We calculated a human activity model based on Monte Carlo simulations. The model showed the lowest level of human activity between 4000 and 3000 BC. For a better understanding of long-term socio-environmental dynamics, we also used the results of a pollen-based quantitative vegetation model, as well as a local macrophysical climate model. The beginning of the decline of archaeologically visible human activities corresponds with climatic changes and an increase in secondary forest taxa probably indicating more extensive land use. In addition, social and technological innovations are important, such as the introduction of the ard, wheel, animal traction and metallurgy, as well as changes in social hierarchy characterizing the same period.     

Diet in transitory society: isotopic analysis of medieval population of Central Europe (ninth–eleventh century AD,Czech Republic)

Dietary behavior in the context of the formation of state structure, Christianization, and significant urbanization was studied, using the Great Moravian Empire (ninth–tenth century AD, Czech Republic) as a representative example. We also analyzed the impact of the disruption of social structure at the beginning of the tenth century and subsequent recovery of society during the eleventh century. Carbon and nitrogen isotopic values were measured in 189 adults (both sexes) and 74 animals representing different socioeconomic contexts (power centers/hinterlands) and chronology (Great Moravian/Late Hillfort period). Statistically significant differences in animal protein consumption were observed between centers and hinterlands. For centers, significant relationship was found between nitrogen isotopic values and socioeconomic status in males but not for females. Diachronic diet changes were observed, with the eleventh century diet characterized by higher millet consumption in both sexes and lower consumption of animal protein in males. These results confirm that Great Moravia represented a highly stratified society socioeconomically. Social status appears to determine the consumption of animal protein much more in males than in females. The diet of females also proved to be more uniform in the diachronic frame. The diachronic change in dietary behavior suggests that through the apparent recovery in the eleventh century, Moravian society did not reach its original level of welfare at least in terms of the quality of diet.     

Charcoal analyses as an environmental tool for the study of Early Medieval sunken houses infills in Roztoky near Prague, Czech Republic

The research was focused on the testing of possible information value of charcoal analysis from infills of archaeological objects, when methodologically different approaches are used in the combination with the micromorphological and pollen-analytical approach. The case study site chosen for this type of study is the unique Early Medieval settlement at Roztoky, Czech Republic. The comparative study includes the infills of 20 pithouses from the extensive settlement comprising about 750 (323 excavated) such archaeological structures situated along the left bank of Vltava River close to what today is the city of Prague. A combination of three anthracological outcomes (the number of charcoal fragments, the anthracomass, and the qualitative frequency of charcoal species) proves to be a powerful tool in determining the vegetation pattern in the surrounding landscape. The study revealed a major effect of post-depositional processes and quantification methods on the final anthracological interpretation. A modification of the anthracological record in different layers was traced in order to assess the applicability of sedimentology and micromorphology in the interpreting of the primary use and ending of the objects found. The reliability of anthracological interpretations are then compared with the results of micromorphological analyses and with regional vegetation patterns interpreted from pollen analyses of an off-site pollen profile.     

Growth responses of Norway spruce (<Emphasis Type="Italic">Picea abies</Emphasis> (L.) Karst.) to the climate in the south-eastern part of the Českomoravská Upland (Czech Republic)

The research was conducted in selected 80- to 110-year-old spruce stands in the south-eastern part of the Českomoravská Upland at altitudes from 350 m a.s.l. to 465 m a.s.l. The regional standard tree-ring chronology shows very low increments for years 1974, 1976 and 1992. After 1992, there is a sharp rise in increments with a climax in 1997. Afterwards, increments gradually decrease, reaching minima in 2003 and 2008. The years with low increments were also confirmed by the analysis of negative pointer years when over 80% of the analysed trees responded by a sharp decrease in increment, mainly in years 1976 and 1992. We can usually find values of monthly precipitation or monthly temperature average which can explain or help explain these falls in the radial growth. The correlations of diameter increments with average monthly precipitation gain only positive statistically significant values, namely for the months of May, June, July and August of the particular year. The correlations of diameter increments with average monthly temperatures gain only negative statistically significant values, namely for the months of June, July and September of the previous year and January and August of the particular year. In the examined area there is a significant negative correlation between average temperatures and monthly precipitation in July, August and September. The results of the habitual diagnostics show that with respect to the climatic conditions the health condition of the monitored stands is relatively good. On average, the defoliation does not exceed the values ascertained in different territories of the Czech Republic.     

Cooperation differs. Intentions of municipalities towards metropolitan cooperation in post-socialist space – Brno,Czech Republic

The long-term regional policy of metropolitan regions contributes to the socio-economic development of the entire functional region as it prevents the disharmony in the activity of the interested actors. In the Czech environment, metropolitan cooperation has not been institutionalized yet, which is remarkable while its importance is emphasized in many developed countries and the development of metropolitan regions is greatly supported by EU through the tool ITI. Moreover, a fully-fledged expert interdisciplinary discussion on this issue, which would provide valid conclusions for the needs of the planning practice, is developing rather slowly. The presented contribution is filling this research gap by analysing and assessing the potential of municipalities for metropolitan cooperation in post-socialist space (mainly through institutional cooperation), using a relevant literature, assessing the results of a questionnaire survey and empirical experiences from the model territory of Brno metropolitan area (BMA). The results of the research indicate a willingness to set-up more formal institutionalization of metropolitan cooperation. It would be feasible to transfer some competencies to a newly established metropolitan expert platform/agency. However, cooperation is significantly linked to the awareness of its benefits (not only of a financial character) and to the requirement of keeping ‘basic’ self-governing competencies.     

A possible hydroid from the Lower and Middle Ordovician of Bohemia

A new genus Webbyites from the Lower and Middle Ordovician of Bohemia is described. Its planar, feather-like benthic colonies (or their parts) display possible hydrozoan affinites. Webbyites is interpreted as an inhabitant of the littoral and sublittoral environment, with high energy, oscillating to current zones.     

The ontogeny of Ellipsocephalus (Trilobita) and systematic position of Ellipsocephalidae

Laibl, L., Fatka, O., Budil, P., Ahlberg, P., Szabad, M., Voká?, V. & Kozák, V., 24.3.2015. The ontogeny of Ellipsocephalus (Trilobita) and systematic position of Ellipsocephalidae. Alcheringa 39, 477–487. ISSN 0311-5518.

Well-preserved early holaspid stages of the Cambrian Series 3 trilobites Ellipsocephalus hoffi (Schlotheim, 1823) and Ellipsocephalus polytomus Linnarsson, 1877 have been discovered in the P?íbram-Jince Basin (Czech Republic) and Jämtland (Sweden), respectively. Both species show remarkable morphological changes during late ontogeny. The earliest holaspides share long genal spines, and long macrospines on the second thoracic segment. Whereas macrospines disappear abruptly in later stages, genal spines are progressively shortened. Consequently, the ontogeny of trilobites of Ellipsocephalidae is revised. The morphology of early meraspid cranidia and ontogenetic patterns in the disappearance of macrospines suggest that this family is closely related to members of Redlichiida rather than Ptychopariida.

Luká? Laibl [lukaslaibl@gmail.com] and Old?ich Fatka [fatka@natur.cuni.cz], Charles University, Institute of Geology and Palaeontology, Albertov 6, 128 43, Prague 2, Czech Republic; Petr Budil [petr.budil@geology.cz], Czech Geological Survey, Klárov 3, Prague 1, 118 21, Czech Republic; Per Ahlberg [per.ahlberg@geol.lu.se], Department of Geology, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden; Michal Szabad [geosz.pb@seznam.cz], Obránc? míru 75, 261 02 P?íbram VII, Czech Republic; Václav Voká? [lichas@seznam.cz], Ke Kuka?ce 21, 312 00 Pilsen, Czech Republic; Vladislav Kozák [vlada.kozak@tiscali.cz], K Moravině 11/1689, 190 00 Prague 9, Czech Republic.     

Evaluating similarity of radial increments around tree stem circumference of European beech and Norway spruce from Central Europe

Extracting cores from a tree using an increment borer has been standard practice in dendrochronological studies for a long time. Although empirical rules exist regarding how many samples to take and which methodology to apply, comparatively few studies provide quantification of the similarity of relative tree-ring-widths (TRW) around the stem circumference. The aim of this study was therefore to precisely measure the similarity of standardised TRWs around the stem circumference and to provide objective suggestions for optimal core sampling of Norway spruce (Picea abies Karst. [L.]) and European beech (Fagus sylvatica L.) growing in Central European temperate forests. A large sample of cross-sectional discs was used from Norway spruce and European beech trees growing on various slopes, at different altitudes and biogeographic regions across the Czech Republic and Slovakia. The similarity of TRWs measured in different coring directions was analysed by testing the relativized TRW around the trunk (rTRW). Comparison of rTRWs revealed no significant differences between coring directions, indicating that the relative increment was the same around the radius. The results also showed the high similarity between the rTRWs to be independent of both slope inclination and altitude. Moreover, the reconstruction of proportional tree diameters and basal areas backward in time from one core sample and one measurement of tree diameter (basal area) at the time of sample extraction is possible with reasonable precision.