scholarly journals Geographic distribution of the field vole (Microtus arvalis) in the Czech Republic

1999 ◽  
Vol 35 (No. 4) ◽  
pp. 139-146 ◽  
Author(s):  
M. Zapletal ◽  
D. Obdržálková ◽  
J. Pikula ◽  
J. Pikula ◽  
M. Beklová

The ecological distribution and requirements of the field vole (Microtus arvalis) were studied, using data on its population density in individual districts of the Czech Republic from 1955 to 1990. The field vole was found to be distributed from lowlands to the sub-alpine level, i.e., from 150 to 1600 m above sea-level. It inhabits continuously and reproduces regularly in nine different biotopes of the Czech Republic. Geographic areas of regular overcrowding of field voles correspond with areas of most suitable living conditions. Of climatic conditions the field vole prefers mainly moderately wa1m climatic regions and these are inhabited by 79.52% of its population. The analysis of quantitative requirements of the field vole indicates that there is a correlation between the distribution of this species and medium values of ecological factors. High and extremely high field vole densities are regularly encountered in areas amounting to I 0 057 km<sup>2</sup>, of which the field biotopes cover 5 072 km<sup>2</sup>.

2012 ◽  
Vol 49 (No. 2) ◽  
pp. 74-82 ◽  
Author(s):  
J. Viewegh ◽  
A. Kusbach ◽  
M. Mikeska

Forest classification, made up by Pl&iacute;va and Prů&scaron;a (Pl&iacute;va 1971), has been used in the Czech Republic forestry since 1970. This classification is based on ecological factors of the environment. Edaphic conditions are at the first position, then climatic conditions follow (by their vertical [altitudinal] distribution mainly). These two factors form the basic construction called ecological grid (Table 1).


Author(s):  
Ellen Haug ◽  
Otto Robert Frans Smith ◽  
Jens Bucksch ◽  
Catherina Brindley ◽  
Jan Pavelka ◽  
...  

Active school transport (AST) is a source of daily physical activity uptake. However, AST seems to have decreased worldwide over recent decades. We aimed to examine recent trends in AST and associations with gender, age, family affluence, and time to school, using data from the Health Behaviour in School-Aged Children (HBSC) study collected in 2006, 2010, 2014, and 2018 in the Czech Republic, Norway, Scotland, and Wales. Data from 88,212 students (11, 13 and 15 years old) revealed stable patterns of AST from 2006 to 2018, apart from a decrease in the Czech Republic between 2006 and 2010. For survey waves combined, walking to and from school was most common in the Czech Republic (55%) and least common in Wales (30%). Cycling was only common in Norway (22%). AST differed by gender (Scotland and Wales), by age (Norway), and by family affluence (everywhere but Norway). In the Czech Republic, family affluence was associated with change over time in AST, and the effect of travel time on AST was stronger. The findings indicate that the decrease in AST could be levelling off in the countries considered here. Differential associations with sociodemographic factors and travel time should be considered in the development of strategies for AST.


2012 ◽  
Vol 50 (No. 7) ◽  
pp. 319-326 ◽  
Author(s):  
L. Jankovský ◽  
M. Bednářová ◽  
D. Palovčíková

Dothistroma needle blight caused by Mycosphaerella pini E. Rostrup was observed for the first time in the Czech Republic on an imported Pinus nigra Arnold in 1999. In 2000, it was also found in the open planting. During three years, it became an important pathogen of pines in the Czech Republic. Its occurrence was noticed in more than 50 localities, above all in the region of Moravia and Silesia and eastern Bohemia. In total, it was found on 10 species of pine (P. nigra Arnold, P.&nbsp;banksiana Lamb., <br />P. contorta Loudon, P. mugo Turra, P.&nbsp;leucodermis Ant., P. sylvestris L., P. cembra L., P. aristata Engelm., P.&nbsp;ponderosa P. et C.&nbsp;Lawson and P. jeffreyi Grev. et Balf.). Also Picea pungens &nbsp;Engelm. was noticed as a host species. In the Czech Republic, Pinus nigra is the most frequent host species of M. pini (80% localities) followed by Pinus mugo (27% localities). On Scots pine P. sylvestris, M. pini was noticed at two localities. The critical period for infection is in the Czech Republic from the second half of May until the end of June. The incubation period lasts about 2&ndash;4 months depending on climatic conditions. The first symptoms on the needles infected in the current year appear in August being clearly expressed from September to November.In the CR, Dothistroma needle blight spread probably with infected planting stock obtained from import at the end of the 80s and at the beginning of the 90s.


2011 ◽  
Vol 57 (No. 3) ◽  
pp. 103-117 ◽  
Author(s):  
F. Střeleček ◽  
J. Lososová ◽  
R. Zdeněk

Every year, an analysis of economic results of a sample of agricultural enterprises farming in various production and climatic conditions in the territory of the Czech Republic is carried out by applying economic statistical methods. Based on these results, long-term trends of economic results and their influencing factors are defined. This article is based on the analysis of development of economic indicators of a sample of agricultural enterprises in the Czech Republic in the period 2003&ndash;2009, divided according to the proportion of the LFA. The year 2009 brought, in comparison with the previous years, a strong deterioration in economic results. In 2009, the economic result was the worst during the whole monitored period. The decrease in the average number of workers together with the increase in labour productivity manifests a long-term tendency. Agricultural subsidies tend also to grow in the long-term even though their growth has been slowing down.


Ergo ◽  
2012 ◽  
Vol 7 (3) ◽  
pp. 10-15
Author(s):  
Ondřej Daniel

Since the last decade the Czech Republic has certain ambitions in restructuring of its economy by increasing its performance in RTDI. These efforts are not possible without capacity building of scientists and researchers community, and in particular income of international scientists to the Czech Republic. However, this need is slowed down by a number of obstacles that are partly sketched in this article. The author is using data collected during almost three years of work experience in one of the service organizations focusing on assisting international researchers. The present article offers a comparison of the Czech context with several other European countries, the interpretation of the issue on the basis of current social science theory and an overview of existing efforts to address the topic.


Ekonomika ◽  
2005 ◽  
Vol 69 ◽  
Author(s):  
Susanne Milcher ◽  
Katarína Zigová

In this paper, we review the social systems in five European countries: Bulgaria, the Czech Republic, Hungary, Slovakia and Romania. We focus here on regulations towards households with insufficient income. Based on this, we analyse the impact of social transfers on self-reliance incentives of the Roma minority in particular, using data from the UNDP/ILO survey conducted in 2001 in the five countries.


Author(s):  
František Muška

Poppy (Papaver somniferum) is the traditional crop in the Czech Republic. The surveys of the appearance of some agents harmful to plants within the territory of the Czechoslovakia (Czech Republic) in 1961 – 2000 were used for elaboration of the set as given above. The particular agents are divided into four groups 1. The influence of drought (precipitation insufficiency, drought and influence of high temperature are involved in this group). 2. The influence of extraordinary heavy precipitation (there is hailstrom and other damage). 3. Damage caused by low temperature and frost 4.The influence of the harmful impact of wind weather (there are wind, erosion caused by wind and wind storm). The data, as above, testify the high sensitivity of the poppy to the course of climatic conditions. It has been confirmed that poppy is problematic crop.


2001 ◽  
Vol 37 (No. 4) ◽  
pp. 129-137 ◽  
Author(s):  
J. Stará ◽  
F. Kocourek

During 1992–1999 the flight activity of Hedya dimidioalba, Spilonota ocellana and Pandemis heparana was investigated by pheromone traps placed in six apple orchards and a plum orchard in Central and East Bohemia. The cumulative catches of each species were plotted against time of the catch expressed as the sum of degree-days above 10°C (H. dimidioalba and S. ocellana) and 8°C (P. heparana) and approximated by Richards’ function. Common parameters of Richards’ function could be found for Hedya dimidioalba and Spilonota ocellana from all localities. In Pandemis heparana the flight pattern was different for groups of localities with similar climatic conditions. It was found that the beginning, peak and end of the flight activity of these species in the Czech Republic can be reasonably predicted.


2019 ◽  
Vol 186 (2-3) ◽  
pp. 215-218
Author(s):  
J Šlegl ◽  
J Minářová ◽  
P Kuča ◽  
I Kolmašová ◽  
O Santolík ◽  
...  

ABSTRACT Thunderstorm ground enhancement (TGE) is a phenomenon that enhances radiation background on the ground related to thunderstorm activity and charge structure of the thundercloud. On the other hand, the rise of gamma background is connected with precipitation by the washout of radon progeny from the atmosphere. In our analysis, we examined known enhancements of gamma background, previously attributed solely to radon progeny, using data from the Czech Radiation Monitoring Network (RMN) to investigate the enhancements with respect to thunderstorms and TGE phenomena. We also used radar precipitation data and data from the lightning location network to analyze their influences on the radiation background enhancement during three thunderstorm events that occurred in summer 2016 over the Czech Republic (Central Europe). We state that the RMN might have detected TGE over the Czech Republic.


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