scholarly journals Leaf-spinning moths (Lepidoptera) feeding on Vaccinium uliginosum L. along an ecological gradient of central European peat bogs

2003 ◽  
Vol 14 (1) ◽  
Author(s):  
Karel Spitzer ◽  
Josef Jaroš ◽  
Aleš Bezdék
Keyword(s):  
Czech Republic ◽  
Food Plant ◽  
Peat Bogs ◽  
Ecological Gradient ◽  
Central European ◽  
Vaccinium Uliginosum

The leaf-spinning moths (Lepidoptera: Tortricidae, Gelechiidae, Chimabachidae and Geometridae) associated with the boreal plant Vaccinium uliginosum L. were investigated in two different peat bogs (Mrtvy luh and Chalupská slat’), both situated in the Sumava Mts., Czech Republic. During four years (1998–2001) of collecting leaf spinnings, 19 species of moths were recorded from both localities. Their occurrence was clearly structured along a distinct ecological (mesoclimatic) gradient. Species closely associated with peat bogs (tyrphobiontic and tyrphophilous taxa) were found to be most abundant in the treeless centres of both peat bogs in comparison with marginal parts. Vaccinium uliginosum is the only food plant of stenotopic boreal moths Pammene luedersiana (Sorhagen) and Athrips pruinosella (Lienig & Zeller) recorded in the Sumava Mts.

scholarly journals Parasitoids (Hymenoptera) of leaf-spinning moths (Lepidoptera) feeding on Vaccinium uliginosum L. along an ecological gradient in central European peat bogs

2019 ◽  
Vol 21 (4) ◽  
pp. 243-253 ◽  
Author(s):  
Aurel Lozan ◽  
Karel Spitzer ◽  
Josef Jaroš ◽  
Andrey Khalaim ◽  
Maria Rizzo ◽  
...  
Keyword(s):  
Peat Bogs ◽  
Ecological Gradient ◽  
Central European ◽  
Vaccinium Uliginosum ◽  
Habitat Adaptation

Parasitoids of leaf-spinning Lepidoptera associated with two isolated central European peat bogs were investigated. Five families of parasitoid Hymenoptera (Braconidae, lchneumonidae, Eulophidae, Pteromalidae and Encyrtidae) were recorded. Three categories were recognised: (1) primary parasitoids, (2) facultative hyperparasitoids and (3) obligatory hyperparasitoids. Ten species of Braconidae, five species and seven marked morphospecies among lchneumonidae, and three species of Chalcidoidea were identified. Despite of some niche-specific (but less host-specific) parasitoids, all these hymenopterans are likely to be generalists and none of them were confirmed to be habitat and/or host specialists. Unlike their eurytopic (opportunistic tyrphoneutral) parasitoids, the Lepidoptera hosts associated with peat bogs are partially highly stenotopic (tyrphobionts and tyrphophiles). The occurrence of parasitoids compared to their potential hosts was structured along an ecological (mesoclimatic) gradient, so most parasitoids were recorded from margins while stenotopic (narrow habitat adaptation) moths were mostly distributed near the centre of the bog habitat.

The earliest ostracods from the Ordovician of the Prague Basin, Czech Republic

2014 ◽  
Vol 64 (4) ◽  
pp. 367-392 ◽  
Author(s):  
Karolína Lajblová ◽  
Petr Kraft
Keyword(s):  
Czech Republic ◽  
Bohemian Massif ◽  
Massif Central ◽  
Central European ◽  
Middle Ordovician ◽  
Prague Basin ◽  
Barrandian Area ◽  
Fossil Assemblages ◽  
European Variscides

Abstract The earliest ostracods from the Bohemian Massif (Central European Variscides) have been recorded from the Middle Ordovician of the Prague Basin (Barrandian area), in the upper Klabava Formation, and became an abundant component of fossil assemblages in the overlying Šarka Formation. Both early ostracod associations consist of eight species in total, representing mainly eridostracans, palaeocopids, and binodicopids. The revision, description, or redescription of all species and their distribution in the basin is provided. Their diversification patterns and palaeogeographical relationships to ostracod assemblages from other regions are discussed.

Second Central European Conference on Reference Materials (CERM-2) Prague, Czech Republic, September 9-10, 1999

2000 ◽  
Vol 5 (6) ◽  
pp. 222-223
Author(s):  
Pavel Mader ◽  
Miloslav Suchánek
Keyword(s):  
Czech Republic ◽  
Reference Materials ◽  
Central European ◽  
European Conference

Languages of borderlands, borders of languages: Native and foreign language use in intergroup contact between Czechs and their neighbours

Human Affairs ◽  
2013 ◽  
Vol 23 (4) ◽  
Author(s):  
Magda Petrjánošová ◽  
Alicja Leix
Keyword(s):  
Czech Republic ◽  
Foreign Language ◽  
Language Use ◽  
Intergroup Contact ◽  
International Project ◽  
Intergroup Attitudes ◽  
Online Questionnaire ◽  
Native Languages ◽  
The Czech Republic ◽  
Central European

AbstractIn this article we present a qualitative analysis of empirical findings from an international project on intergroup attitudes and contact in five Central European countries specifically concerning language use. The project concentrated on the interplay of intergroup contact and perception between the members of national groups in the borderlands between the Czech Republic and Austria, Germany, Poland and Slovakia. The open statements analysed here about the contact situations and the ensuing evaluation of the Others were collected as part of an online questionnaire (N=1959). After a short theoretical introduction we reveal the intertwined nature of construing language use: first in each specific borderland, then in the triads speaking together either in the native language of one of the groups (Czechs with Austrians and Germans) or with each speaking their own native languages (Czechs with Poles and Slovaks). Finally we highlight several effects we have observed as a result of being able to compare the situation in more than one neighbourhood, for instance, the effect of the different statuses of the languages involved, or the connection between the language used in contact and a feeling of proximity.

scholarly journals The Attractiveness of Selected Central European Countries for Winter Sports and Mountain Hiking

Turyzm ◽  
2018 ◽  
Vol 28 (1) ◽  
pp. 35-40
Author(s):  
Kinga Krzesiwo ◽  
Kamila Ziółkowska-Weiss ◽  
Michał Żemła
Keyword(s):  
Czech Republic ◽  
Mass Scale ◽  
European Countries ◽  
Mountainous Areas ◽  
Winter Sports ◽  
The Czech Republic ◽  
Central European ◽  
Downhill Skiing ◽  
Visegrad Group

Abstract Hiking, downhill skiing and snowboarding are among the most popular forms of active tourism in mountainous areas. Their popularity and their mass scale do not only result from the presence of the appropriate landscape, but also from its appropriate development. The objective of the article is to attempt to assess the attractiveness of selected Central European countries in terms of winter sports and mountain hiking, to consider the opinions of students who live in Visegrad Group countries, as well as to evaluate the barriers to development of their competitive offers. According to respondents, the most attractive countries for winter sports are Austria and Slovakia, and the least attractive are Hungary, Romania and Lithuania. In turn, according to the students, the best conditions for mountain hiking are in Slovakia, Austria, the Czech Republic and Poland. In addition, respondents from particular countries assessed domestic offers highly.

Demographic variation of dwarf birch (Betula nana) in communities dominated by Ledum palustre and Vaccinium uliginosum

Biologia ◽  
2010 ◽  
Vol 65 (2) ◽  
Author(s):  
Wojciech Ejankowski
Keyword(s):  
Population Growth ◽  
Sexual Reproduction ◽  
Vegetative Growth ◽  
Light Limitation ◽  
Permanent Plots ◽  
Peat Bogs ◽  
Betula Nana ◽  
Vaccinium Uliginosum ◽  
Ledum Palustre ◽  
Dwarf Birch

AbstractThe structure and demographic processes were compared in shrub communities to test the effects of vegetation succession on population growth, fecundity and abundance of the dwarf birch (Betula nana L.), which is a rare and endangered plant species in Poland and a glacial relict in Central Europe. The effects of Ledum palustre L. and Vaccinium uliginosum L. were studied in the Linje nature reserve in Chełmińskie Lake District (northern Poland), in three permanent plots on a peat bog. Vegetative growth and reproduction of B. nana were lower in plant communities dominated by L. palustre and V. uliginosum, than in a reference site. Fecundity was also lower, despite the fact that the percentage share of potentially fertile age groups was similar in all study sites. Mortality of ramets was independent of vegetation, both for juvenile and mature stages. The results confirm that B. nana is intolerant of shade, and it is more abundant in vegetation without competitors. Light limitation can lead to its decline, primarily by a decrease in vegetative growth. Sexual reproduction may be negatively affected by shade, but it plays only small role in population growth. Butterfly larvae can destroy inflorescences, and thus contribute to low effectiveness of sexual reproduction. Increasing density of shrubs and trees in peat bogs can reduce the abundance of dwarf birch, and can lead to the extinction of its local populations.

scholarly journals Photojournalism in Central Europe

2017 ◽  
Vol 38 (s2) ◽  
pp. 7-23 ◽  
Author(s):  
Filip Láb ◽  
Sandra Štefaniková
Keyword(s):  
Czech Republic ◽  
Digital Technologies ◽  
News Production ◽  
Traditional Concept ◽  
The Czech Republic ◽  
Central European ◽  
Current State ◽  
News Organizations ◽  
Working Practices ◽  
New Challenges

Abstract The adoption of digital technologies, along with current economic realities, has affected the entire process of visual news production. It has also influenced the traditional concept of photojournalism. As a result, news photographers face multiple new challenges. Although visual news material is becoming ever more important, news organizations have cut back on employment, leaving those few who remain employed with additional workload and responsibilities. Based on interviews with photojournalists and photo editors, this article examines the current state of photojournalism and editorial processes in three Central European countries – the Czech Republic, Poland and Slovakia. Findings indicate that photojournalists and photo editors face ongoing developments in the photographic medium that significantly affect their working practices and routines. At the same time, they must deal with increasing workload, new responsibilities, competition and the challenges of maintaining quality in the digital age.

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