scholarly journals Thirteen years on the hunt for Buxbaumia viridis in the Czech Republic: still on the tip of the iceberg?

2014 ◽  
Vol 83 (2) ◽  
pp. 137-145 ◽  
Author(s):  
Eva Holá ◽  
Jan Vrba ◽  
Renata Linhartová ◽  
Eva Novozámská ◽  
Magda Zmrhalová ◽  
...  
Keyword(s):  
Czech Republic ◽  
Coniferous Forest ◽  
Western Carpathians ◽  
Distribution Model ◽  
Suitable Habitat ◽  
Natural Forests ◽  
Habitat Directive ◽  
The Czech Republic ◽  
Area Of Occupancy ◽  
Historical Sites

Rare epixylic moss <em>Buxbaumia viridis</em>, which is one of the “Annex II” species of the European “Habitat directive”, has been recorded at 124 localities in the Czech Republic in course of the last 13 years. Most of them were discovered in the last five years following a dedicated search at both historical sites of occurrence and new localities with putatively suitable habitat conditions. The recent and historical area of occupancy and extent of occurrence are not obviously different, although most of the recent localities are concentrated in the Western Carpathians and the Hrubý Jeseník Mts. Surprisingly, only 38% of the localities are located in natural forest habitats, of which herb-rich and acidophilous beech forests were among the most commonly inhabited ones. The rest of occurrences were recorded in non-natural forests (habitats strongly influenced or created by man), particularly the coniferous forest plantations. Sufficient amount of decaying wood of the advanced decay stages, as well as sufficient and constant humidity are crucial prerequisites for the occurrence of <em>B. viridis</em> in both types of forests. True epixylic moss <em>Herzogiella seligeri</em> and the liverwort <em>Chiloscyphus profundus</em> were recorded as the most common associated species, while the rest of commonly co-occurring species were facultatively epixylic, ground or ubiquitous bryophytes; other specialized and rare epixylic mosses or liverworts were only rarely recorded. We also designed a potential distribution model for <em>B. viridis</em> based on the distribution of habitats most commonly occupied by the studied moss. Despite the simplicity of the model, its close match with the recent distribution in the Western Carpathians, the Hrubý Jeseník Mts. and Šumava Mts. supports its relevance for the real distribution of <em>B. viridis</em>.

scholarly journals The Upper Cretaceous Ostravice Sandstone in the Polish sector of the Silesian Nappe, Outer Western Carpathians

2016 ◽  
Vol 67 (2) ◽  
pp. 149-166 ◽  
Author(s):  
Marek Cieszkowski ◽  
Anna Waśkowska ◽  
Justyna Kowal-Kasprzyk ◽  
Jan Golonka ◽  
Tadeusz Słomka ◽  
...  
Keyword(s):  
Czech Republic ◽  
Upper Cretaceous ◽  
Western Carpathians ◽  
The Czech Republic ◽  
Lithostratigraphic Unit ◽  
Outer Western Carpathians ◽  
Outer Carpathians ◽  
Lowermost Part

Abstract The Ostravice Sandstone Member was identified and described as a lithostratigraphic unit in the Polish part of the Outer Carpathians. This division occurs in the lowermost part of the Godula Formation, is underlain by variegated deposits of the Mazák Formation or directly by the Barnasiówka and Lhoty formations, and overlain by the Czernichów Member of the Godula Formation. Domination by thick- and very thick-bedded sandstones, conglomeratic sandstones and conglomerates rich in calcareous clasts, mostly of the Štramberk-type limestones, is typical for the Ostravice Sandstone Member. These deposits are widespread between the Moravskoslezské Beskydy Mountains in the Czech Republic and the Ciężkowice Foothills in Poland. The documentation of the Ostravice Sandstone Member occurrence as well as the petrological, sedimentological features, and inventory of the carbonate clasts are presented here.

scholarly journals Nannofossil record across the Cenomanian-Coniacian interval in the Bohemian Cretaceous Basin and Tethyan foreland basins (Outer Western Carpathians), Czech Republic

2012 ◽  
Vol 63 (3) ◽  
pp. 201-217 ◽  
Author(s):  
Lilian Švábenická
Keyword(s):  
Czech Republic ◽  
Black Shales ◽  
Western Carpathians ◽  
High Latitudes ◽  
Foreland Basins ◽  
Mutual Correlation ◽  
The Czech Republic ◽  
Outer Western Carpathians ◽  
First Occurrence ◽  
Bohemian Cretaceous Basin

Nannofossil record across the Cenomanian-Coniacian interval in the Bohemian Cretaceous Basin and Tethyan foreland basins (Outer Western Carpathians), Czech Republic Nannofossil biostratigraphy and mutual correlation was worked out for the Cenomanian-Coniacian deposits of the Bohemian Cretaceous Basin (BCB) and Outer Western Carpathians (OWC) in the territory of the Czech Republic. Similar assemblages of the BCB and from sediments deposited on the SE slopes of West European Platform, Waschbergždánice-Subsilesian Unit, OWC support the hypothesis that the two areas were connected by a sea way (nowadays the Blansko trough). The nannoflora of the Silesian Unit, OWC show more afinity to high latitudes as is documented by the presence of Marthasterites furcatus in the Lower Turonian, UC6b and UC7 Zones. Turonian and Coniacian deep-water flysch sediments of the Silesian Unit and Magura Group of Nappes provide nannofossils on rare occassions. Strongly atched nannofossils dominated by W. barnesiae from Cenomanian black shales of the BCB are comparable to those of the Silesian Unit and reflect a similar shallow nearshore sea. In the BCB, uppermost Cenomanian is marked by the last occurrence (LO) of Axopodorhabdus albianus and first occurrence (FO) of Quadrum intermedium (6 and 7 elements) and lowermost Turonian by a sudden quantitative rise in nannoflora and by the FO Eprolithus octopetalus. First Eiffellithus eximius and thus the base of the UC8 Zone was recorded in the upper part of ammonite Zone Collignoniceras woollgari in the lower Middle Turonian. Lithastrinus grillii is the stratigraphically youngest nannofossil species in this region and indicates the uppermost Coniacian. In the OWC, the Albian-Cenomanian boundary was recorded in the Silesian Unit and is marked by the LO Crucicribrum anglicum and FO Prediscosphaera cretacea and Corollithion kennedyi in the uppermost Albian. The Turonian-Coniacian boundary found both in the BCB and Waschberg-Ždánice-Subsilesian Unit, OWC is indicated by the FO Broinsonia parca expansa and by the base of the interval with common Marthasterites furcatus. In both areas, events were found closely below the FO inoceramid species Cremnoceramus waltersdorfensis. The Coniacian-Santonian boundary interval (Waschberg-Ždánice-Subsilesian and Foremagura Units, OWC) is indicated by Lithastrinus grillii occasionally accompanied by Lucianorhabdus ex gr. cayeuxii, Hexalithus sp. and Arkhangelskiella specillata.

scholarly journals Sustainable management of mountain forests in the Czech Republic

2012 ◽  
Vol 50 (No. 11) ◽  
pp. 526-532 ◽  
Author(s):  
S. Vacek ◽  
V. Balcar
Keyword(s):  
Czech Republic ◽  
Forest Management ◽  
Forest Ecosystems ◽  
Sustainable Forest Management ◽  
Self Regulation ◽  
Raw Material ◽  
Anthropogenic Factors ◽  
Mountain Forests ◽  
Natural Forests ◽  
The Czech Republic

Forest management in the Czech Republic (CR) was not shaped in the environment of natural forests but in the territory that was influenced by unregulated felling and animal grazing for a long time. Hence the fear for sustainable and balanced benefits from forests endangered by long-term uncontrolled exploitation was legitimate. Almost after three centuries of application of the sustainability principle, forests are considered not only as a source of renewable wood raw material but also as a tool of the environment formation. Mountain forests are an important landscape component of this country. They are an object of specific importance from the aspect of natural environment conservation, stabilization of natural processes and general landscape homeostasis. In addition, they fulfil a number of production and non-production functions. Cardinal elements of sustainable forest management in the CR conditions are as follows: management of the forest as an ecosystem, i.e. transition from exclusive care of forest tree species and their stands to care of the whole forest ecosystems; restructuring (conversion, reconstruction) of damaged and declining forests; optimum (species, genetic, spatial, age) structure of forest ecosystems differentiated according to site conditions and management targets; differentiated transition from general management to group or individual methods; utilization and support of spontaneous processes such as natural regeneration, competition and other principles of self-regulation. The above cardinal elements of sustainable forest management are applicable to forests of the CR in general, but their importance considerably increases in mountain forests where many species survive on the margin of subsistence. Moreover, mountain forests of CR have been heavily destroyed by anthropogenic factors, especially air-pollution ecological stresses, during the last three or four decades.

Red List of Czech spiders: 3rd edition, adjusted according to evidence-based national conservation priorities

Biologia ◽  
2015 ◽  
Vol 70 (5) ◽  
Author(s):  
Milan Řezáč ◽  
Antonín Kůrka ◽  
Vlastimil Růžička ◽  
Petr Heneberg
Keyword(s):  
Czech Republic ◽  
Large Scale ◽  
Red List ◽  
Conservation Priorities ◽  
The Czech Republic ◽  
Area Of Occupancy ◽  
Scale Field ◽  
Large Scale Field ◽  
Abundance And Distribution ◽  
First Time

AbstractThe knowledge on spiders of the Czech Republic has substantially improved since the second version of the national Red List was published, mainly due to large-scale field records and the establishment of an extensive, searchable electronic database of both retrospective and prospective records. Meanwhile, Central European spiders have undergone substantial changes in abundance and distribution. In this report, an updated Red List is presented and compared with the previous editions from 1992 and 2002, assessing all 879 spider species known to occur in the Czech Republic. For the first time, the abundance, area of occupancy and population trends were calculated for each of the species using the data from the Czech Arachnological Society recording scheme. Twenty-seven species (3% of the total) were classified as Regionally Extinct (RE), 92 (10%) as Critically Endangered, 115 (13%) as Endangered, 155 (18%) as Vulnerable, and 121 (14%) were classified as Least Concern species. Some species listed in the previous version of the Red List were found to live also in non-endangered habitats or to be more common than previously thought, and were thus removed from the list or reclassified to the lower Red List categories. Additionally, several species with dramatically decreasing abundance were identified, among them Ozyptila rauda, Agyneta equestris, Agyneta mollis, Kishidaia conspicua, Clubiona genevensis and Centromerus semiater. The results confirm that spiders are a highly threatened group of arthropods in the Czech Republic, and the updated Red List provides an important foundation for defining conservation priorities

scholarly journals Catenas of Grain Size and Chemical Forest Soil Properties in Outer Western Carpathians of the Czech Republic Characterized by Principal Component Analysis

2019 ◽  
Vol 67 (3) ◽  
pp. 733-747
Author(s):  
Pavel Samec ◽  
Tomáš Mikita ◽  
Aleš Bajer
Keyword(s):  
Czech Republic ◽  
Soil Properties ◽  
Forest Soil ◽  
Principal Component ◽  
Western Carpathians ◽  
Soil Horizon ◽  
The Czech Republic ◽  
Soil Catena ◽  
Outer Western Carpathians ◽  
Biogeographical Division

More frequent occurence of hillwashes in altitudinal‑differentiated landscapes causes changes of relationships among terrain, bedrock and soils. The aim of the study was to characterize catenas of the terrain‑bedrock‑soil relationships by PCA of forest soil properties generalized into 2 × 2 km grid in Outer Western Carpathians (OWC) of the Czech Republic. The spatial relationships of the soil catenas with terrain and rocks were verified by ANOVA. Typification of the catenas was carried out by frequencies in the presented terrain and bedrock types according to biogeographical division system. Base saturation, CaO and P2O5 divide forest soils in OWC to ten catenas. The catenas characterized by moderate correspondence of soils and bedrock are concentrated in Outer Depressions, while catenas with moderate correspondence of soils and terrain are concentrated in Flysch Range. The Outer Carpathian Depressions are covered predominantly by floodplains, flat waterlogged, loess‑covered and luvic hillycountries (67% of the grid). The Flysch Range is covered predominantly by proluvial slopes, broken hillcountries and submountain to mountain slopes (65% of the grid). The Floodplains, broken nutrient‑medium hillycountries and mountain slopes have medium to marked soil horizon properties heterogeneity. The flat landforms, proluvial and submountain slopes have moderate soil properties heterogeneity. The statistical significant differences between values of properties at A and B horizons suggest rate of an surface matter translocation effect on the soil catena heterogeneity.

scholarly journals Species distribution model for Buxbaumia viridis, identifying new areas of presumed distribution in the Czech Republic.

2020 ◽  
Vol 69 (1) ◽  
pp. 21-28
Author(s):  
Lukáš Číhal ◽  
Lucie Fialová ◽  
Vítězslav Plášek
Keyword(s):  
Air Pollution ◽  
Czech Republic ◽  
Species Distribution ◽  
Species Distribution Model ◽  
Ecological Factors ◽  
Field Research ◽  
Distribution Model ◽  
Distribution Models ◽  
The Czech Republic ◽  
The Subject

Abstract There is a large number of organisms in nature that are hard to find in the field, and one of these is also a rare bryophyte species, Buxbaumia viridis, which can also only be found in a certain part of the year in the production of sporophytes. Using distribution models, however, it is possible to predict the locations which this species is likely to be present at and to focus the field research directly on such sites. Thanks to the presented model, we have succeeded in identifying areas within the Czech Republic with an increased likelihood of its occurrence, even in some areas where no collection of B. viridis has so far been recorded. With the help of the maps created these locations can be identified with the accuracy of approximately 1 km2, making it easier for terrain research and resulting time and often financial expenses. We have also focused on the study of ecological factors that influence the occurrence of the species, and by testing variables from different categories we have come to some agreement with previously published studies. Whilst we have managed to exclude that air pollution has a major role to its occurrence, which has not yet been the subject of any study.

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