scholarly journals Cognettia sphagnetorum (Vejdovský, 1878) (Annelida, Clitellata, Enchytraeidae) in North America, confirmed with molecular support

Check List ◽  
2021 ◽  
Vol 17 (3) ◽  
pp. 979-983
Author(s):  
Will K. Reeves ◽  
Jeremy R. Shaw ◽  
Mark J. Wetzel
Keyword(s):  
Czech Republic ◽  
North America ◽  
Dna Sequencing ◽  
Forest Soils ◽  
Model Organism ◽  
Northern Europe ◽  
Soil Biology ◽  
The Czech Republic ◽  
Western Washington ◽  
Cognettia Sphagnetorum

Cognettia sphagnetorum (Vejdovský, 1878), a common inhabitant of forest soils and bogs in northern Europe, is a model organism in soil biology. We report the first documented occurrence of C. sphagnetorum in North America, based on DNA sequencing from a Sphagnum bog in western Washington, USA. Sequences were identical to that of worms from Sweden and the Czech Republic.

Psathyrella rostellata in the Czech Republic and Slovakia

Biologia ◽  
2008 ◽  
Vol 63 (4) ◽  
Author(s):  
Martina Vašutová
Keyword(s):  
Czech Republic ◽  
Northern Europe ◽  
Similar Species ◽  
The Czech Republic ◽  
Micromorphological Characters

AbstractPsathyrella rostellata Örstadius (Psathyrellaceae, Agaricales), which has been known only from Northern Europe so far, is reported from six localities in the Czech Republic and from one locality in Slovakia. Description, pictures and illustrations of micromorphological characters based on Czech and Slovak specimens are provided. Ecology, distribution and comparison with similar species — Psathyrella spintrigeroides, Psathyrella artemisiae and others are discussed.

scholarly journals Increase in meningococcal disease associated with the emergence of a novel ST-11 variant of serogroup C Neisseria meningitidis in Victoria, Australia, 1999–2000

2002 ◽  
Vol 128 (1) ◽  
pp. 7-14 ◽  
Author(s):  
D. E. TRIBE ◽  
A. M. ZAIA ◽  
J. M. GRIFFITH ◽  
P. M. ROBINSON ◽  
H. Y. LI ◽  
...  
Keyword(s):  
Czech Republic ◽  
Dna Sequencing ◽  
Neisseria Meningitidis ◽  
Meningococcal Disease ◽  
Age Distribution ◽  
Housekeeping Gene ◽  
Restriction Pattern ◽  
The Novel ◽  
Age Group ◽  
The Czech Republic

In the years 1999–2000, there was an increase in the incidence of meningococcal disease in Victoria, largely caused by Neisseria meningitidis serogroup C. This change was associated with a shift in age distribution of cases, with relatively more disease appearing in the 15–29 year age group, and with 40/58 serogroup C isolates in 2000 exhibiting a new macrorestriction pattern (pattern A). Thirty-four of 52 pattern A isolates tested displayed the novel phenotype C:2a:P1.4, and were consistently porA VR type P1.7-2,4 by DNA sequencing. Nine of 10 representative pattern A isolates analysed displayed a housekeeping gene allele profile (ST-11) that is characteristic of the electrophoretic type (ET)-15 variant that has caused outbreaks in Canada, the Czech Republic and Greece. Meningococci belonging to the ST-11 complex that were isolated in Victoria prior to 1999 did not display either restriction pattern A or PorA VR type P1.7-2,4.

Okruchy starożytności. Użytkowanie monet antycznych w Europie Środkowej, Wschodniej i Północnej w średniowieczu i w okresie nowożytnym

2020 ◽  
Keyword(s):  
Czech Republic ◽  
Middle Ages ◽  
18Th Century ◽  
Northern Europe ◽  
Baltic States ◽  
The Czech Republic ◽  
Eastern Germany ◽  
Modern Period ◽  
Central Eastern ◽  
Written Sources

Ancient coinage (understood here as pre-AD 6th century Greek, Celtic and Roman issues) constitutes a small percentage of hoards and other assemblages found in Central, Eastern and Northern Europe, dated to the Middle Ages and to the modern period. Ancient coins have also been recorded at other sites in contexts dated to the same time, such as burial or settlement sites. Finds sometimes include pierced coins, which suggests they may have been used as amulets or jewellery. The book contains the texts written by researchers from Poland, Germany, the Czech Republic, Sweden and Denmark. The aim of their studies of the archaeological, numismatic and written sources was to examine the use of ancient coins in the territories of present-day Poland, Baltic States, western Russia, Belarus, Ukraine, Slovakia, the Czech Republic, eastern Germany and Scandinavia in a period spanning from approximately 7th century to the turn of the 18th century.

scholarly journals First records of Leptoglossus occidentalisdemann, 1910 (Heteroptera: Pentatomorpha: Coreidae) in the Czech Republic

2008 ◽  
Vol 43 (No. 4) ◽  
pp. 165-168 ◽  
Author(s):  
J. Beránek
Keyword(s):  
Czech Republic ◽  
North America ◽  
Insect Species ◽  
The Czech Republic ◽  
Coniferous Trees ◽  
Leptoglossus Occidentalis ◽  
Alien Insect ◽  
First Time

In the autumn of 2006 and summer 2007 the coreid species <I>Leptoglossus occidentalis</I> Heidemann, 1910 was detected in the Czech Republic for the first time as a new alien insect species. It is native to North America, where it causes important seed losses on coniferous trees, especially pines. From Europe it is known since the end of the last century, when it was introduced to Italy. Its repeated finding could indicate a vital population of this species in the Czech Republic, not only introduced individuals.

scholarly journals Contribution to identify the causal gents of Dutch elm disease in the Czech Republic

2008 ◽  
Vol 43 (No. 4) ◽  
pp. 142-145 ◽  
Author(s):  
M. Dvořák ◽  
M. Tomšovský ◽  
L. Jankovský ◽  
D. Novotný
Keyword(s):  
Czech Republic ◽  
North America ◽  
Molecular Biology ◽  
The Other ◽  
Dutch Elm Disease ◽  
The Czech Republic ◽  
Ophiostoma Ulmi ◽  
Other Hand ◽  
Subspecies Level ◽  
First Time

This study provides new data on Dutch elm disease in the Czech Republic. <I>Ophiostoma novo-ulmi</I> is reported for the first time in the area of the Czech Republic, as well as both subspecies ssp. <I>novo-ulmi</I> (indigenous in the area of the Ukraine and Moldavia), and ssp. <I>Americana</I> indigenous in North America. The majority of the recorded strains belonged to <I>O. n.-u.</I> ssp. <I>novo-ulmi</I>, while <I>O. n.-u.</I> ssp. <I>Americana</I> and hybrids of these two subspecies were found less frequently. On the other hand, <I>Ophiostoma ulmi</I> was not found at all in the investigated samples. Identification on the subspecies level was performed by methods of molecular biology, i.e. PCR and RFLP of gene regions<I> cu</I> and <I>col1</I>.

scholarly journals Extremely low infection levels of pathogens and nematodes in Trypodendron spp. (Coleoptera: Curculionidae)

2016 ◽  
Vol 62 (4) ◽  
pp. 202-206
Author(s):  
Rudolf Wegensteiner ◽  
Karolina Lukášová ◽  
Hana Vanická ◽  
Soňa Zimová ◽  
Magdalena Kacprzyk ◽  
...  
Keyword(s):  
Czech Republic ◽  
North America ◽  
Pheromone Traps ◽  
Infection Rates ◽  
Trypodendron Lineatum ◽  
Ambrosia Beetles ◽  
Forest Pests ◽  
The Czech Republic ◽  
Palearctic Region ◽  
Midgut Lumen

Abstract The striped ambrosia beetles Trypodendron lineatum and T. domesticum are timber forest pests in the Palearctic region and North America. Because only a few pathogens are known for Trypodendron species, the aim of this work was to determine the spectrum of pathogen species of T. lineatum, T. laeve, and T. domesticum. Trypodendron species were collected in pheromone traps at nine localities in the Czech Republic, five localities in Poland, and one locality in Austria. In total, 2,439 T. lineatum, 171 T. domesticum, and 17 T. laeve beetles were dissected and examined. Infection was found in only two of the 17 specimens of T. laeve and in only two of the 171 specimens of T. domesticum; in all four cases, the parasites were nematodes. Parasitisation of T. lineatum by nematodes was found in T. lineatum at eight localities with a mean (± SE) parasitisation level of 8.1 ± 4.7%. A Chytridiopsis sp. was detected in cells of the midgut epithelium of one T. lineatum specimen, and Gregarina sp. was detected in the midgut lumen of two T. lineatum specimens; no other pathogens were found in T. lineatum. The low infection rates and the tendency for infection by nematodes can be explained by the monogamy of Trypodendron spp. and their feeding on fungi in short galleries that are not connected to the galleries of conspecifics.

scholarly journals Catalogue of alien animal species in the Czech Republic

2005 ◽  
Vol 53 (4) ◽  
pp. 151-170 ◽  
Author(s):  
Hana Šefrová ◽  
Zdeněk Laštůvka
Keyword(s):  
Czech Republic ◽  
North America ◽  
Animal Species ◽  
Stored Products ◽  
Local Fauna ◽  
Forest Pests ◽  
The Czech Republic ◽  
Non Invasive ◽  
Stored Product Pest ◽  
Invasive Status

The catalogue of alien animal species registered in the Czech Republic, with data on their origin, date on the first observation, way of introduction (accidental, deliberate, spontaneous), invasive status (casual, non-invasive, post-invasive, invasive), habitat (eusynanthropic, urban, agricultural, natural), trophic requirements and possible influences (plant or stored-product pest, biodiversity influence). In total 595 species are listed, i.e. 1.8% of the fauna of this country; of these, 22 species of molluscs (8.8% of the local fauna), 451 spp. of arthropods (1.5%), 383 spp. of insects (1.4%), and 55 spp. of vertebrates (9.2%). Among the registered species, 248 spp. (41.8%) are confined to closed and heated spaces by their occurrence, and 287 spp. have become naturalized (48.2%). Of these 113 spp. are considered invasive (19% of alien spp.). 65 spp. (10.9% of aliens) are pests of stored products, 84 spp. (14.1%) are parasites of important animals, 53 spp. (8.9%) are pests of plants grown in heated rooms (above all, glasshouses), 28 ssp. (4.7%) are agricultural or forest pests, and 39 spp. (6.6%) may influence local biodiversity. The origin of the naturalized alien species is mostly in North America (70; 24.4%), the Mediterranean (61; 21.3%), E Asia (44; 15.4%), Central and SW Asia (43; 15%), and S or SE Asia (30; 10.5%).

scholarly journals National spectral data and learning algorithms for potentially toxic elements modelling in forest soil horizons

2020 ◽  
Author(s):  
Asa Gholizadeh ◽  
Mohammadmehdi Saberioon ◽  
Eyal Ben Dor ◽  
Raphael A. Viscarra Rossel ◽  
Lubos Boruvka
Keyword(s):  
Czech Republic ◽  
Spectral Data ◽  
Forest Soils ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Partial Least Square ◽  
Least Square ◽  
Support Vector ◽  
The Czech Republic ◽  
Organic Horizons

Forest ecosystems are among the main parts of the biosphere; however, they have been endangered from the significant elevation and harmful effects of air and soil pollutants, including potentially toxic elements (PTEs). The concentration of PTEs in forest soils varies not only laterally but also vertically with depth. Forest surface organic horizons are of particular interest in forest ecosystem monitoring due to their role as stable adsorbents of the deposited atmospheric substances. Therefore, the main purpose of this study was to conduct rapid examinations of forest soils PTEs (Cr, Cu, Pb, Zn, and Al), testing the capability of VIS--NIR spectroscopy coupled with machine learning (ML) techniques (partial least square regression (PLSR), support vector machine regression (SVMR), and random forest (RF)) and fully connected neural network (FNN), a deep learning (DL) approach, in forest organic horizons. One-thousand-and-eighty forested sites across the Czech Republic at two soil layers, defining the fragmented (F) and humus (H) organic horizons, were investigated (total 2160 samples). PTEs as well as total Fe and SOC, as auxiliary data, were conventionally and spectrally determined and modelled in the combined organic horizons (F + H) and in each individual horizon using the ML and DL algorithms. Results indicated that the concentration of all PTEs was higher in the horizon H compared to the F horizon. Although the spectral reflectance of samples tended to decrease with increased PTEs concentration. Strongly significant positive correlations between all PTEs and total Fe in all horizons were obtained, which were higher in the H and F + H horizons than the F horizon. The highest correlations of PTEs with the spectra were at 460--590~nm, which is mostly linked to the presence of Fe-oxide. These results show the importance of Fe for spectral prediction of PTEs. Cr and Al were the most accurately predicted elements, regardless of the applied learning technique. SVMR provided the best results in assessing the H horizon (e.g., R\(^2\) = 0.88 and root mean square error (RMSE) = 3.01~mg/kg, and R\(^2\) = 0.82 and RMSE = 1682.25~mg/kg for Cr and Al, respectively); however, FNN predicted the combined F + H horizons the best (R\(^2\) = 0.89 and RMSE = 2.95~mg/kg, and R\(^2\) = 0.86 and RMSE = 1593.64~mg/kg for Cr and Al, respectively) due to the larger number of samples. In the F horizon, almost no parameters were predicted adequately. This study shows that given the availability of larger sample sizes, FNN can be a more promising technique compared to ML methods for assessment of Cr and Al concentration based on national spectral data in the forests of the Czech Republic.

scholarly journals An Assortment of Woody Plants Produced in the Manor of Nové Dvory at the Turn of the 18th and 19th Centuries: North American Taxa

2019 ◽  
Vol 67 (4) ◽  
pp. 981-992 ◽  
Author(s):  
Miloš Pejchal ◽  
Lukáš Štefl
Keyword(s):  
Czech Republic ◽  
North America ◽  
North American ◽  
Woody Plants ◽  
Current Concept ◽  
The Czech Republic

The noble family of Chotek began with the realization of extensive landscaping in their manor of Nové Dvory at the end of the 18th century. Lists of woody plants produced for these purposes and for sale were preserved from the years 1794, 1800 and 1814. 276 taxa of foreign woody plants in the current concept, permanently cultivated outdoors, have been identified in all three lists at least to the level of the species. 91 taxa come from North America, with 81 being the first documented place of their presence in the territory of the Czech Republic. All North American taxa are natural, none of them originated in culture.

scholarly journals First records of the rhododendron leafhopper (Graphocephala fennahi) (Hemiptera: Auchenorrhyncha: Cicadellidae) from the Czech Republic

2010 ◽  
Vol 41 (No. 1) ◽  
pp. 38-41 ◽  
Author(s):  
P. Špryňar
Keyword(s):  
Czech Republic ◽  
Great Britain ◽  
North America ◽  
Blast Disease ◽  
Insect Species ◽  
The Czech Republic ◽  
City Area ◽  
Alien Insect ◽  
First Time

In summer and autumn of 2004 the cicadellid leafhopper species Graphocephala fennahi was detected in the Czech Republic for the first time as a new alien insect species feeding on Rhododendron. The species is native to North America and was introduced in the 1930’s to Great Britain and in the 1970’s to continental Europe, where its invasion and relationship to the rhododendron bud blast disease have been studied in detail. At present, the Czech populations of G. fennahi appear to be restricted to the Prague city area and near surroundings, but further spread of G. fennahi can be expected.

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