scholarly journals Chalara fraxinea – ash dieback in the Czech Republic

2009 ◽  
Vol 45 (No. 2) ◽  
pp. 74-78 ◽  
Author(s):  
L. Jankovský ◽  
O. Holdenrieder
Keyword(s):  
Czech Republic ◽  
Common Species ◽  
Causal Agent ◽  
Fraxinus Excelsior ◽  
Its Sequence ◽  
Ash Dieback ◽  
The Czech Republic ◽  
Chalara Fraxinea ◽  
South Moravia

The causal agent of ash dieback, the hyphomycete <I>Chalara fraxinea</I>, was isolated from a <I> Fraxinus excelsior</I> cv. Pendula tree, in the Arboretum Křtiny between Křtiny and Jedovnice in Drahany Highland, and subsequently from several other locations in South Moravia in the Czech Republic. The infection was associated with severe twig dieback and symptoms of ash dieback were observed in many locations across the Czech Republic. The morphology of<I> C. fraxinea</I> is described and an ITS sequence is provided. <I>Hymenoscyphus albidus</I>, the teleomorph of <I>C. fraxinea</I>, is known as a quit common species from precedent mycofloristic studies provided in different areas in the Czech Republic.

Identification of Hymenoscyphus fraxineus, the causal agent of ash dieback in Slovakia

Biologia ◽  
2015 ◽  
Vol 70 (5) ◽  
Author(s):  
Katarína Adamčíková ◽  
Miriam Kádasi-Horáková ◽  
Libor Jankovský ◽  
Ludmila Havrdová
Keyword(s):  
Causal Agent ◽  
Fraxinus Excelsior ◽  
Its Sequences ◽  
Field Sampling ◽  
Ash Dieback ◽  
Chalara Fraxinea ◽  
Hymenoscyphus Fraxineus

AbstractSymptoms of ash dieback have been recorded in Slovakia since 2004. The field sampling was carried out in 2013, included 59 segments of shoots and 10 and more petioles per locality from four localities. The causal agent of ash dieback, the hyphomycete Chalara fraxinea T. Kowalski, was isolated from Fraxinus excelsior L. from seven localities in Slovakia. The morphology of C. fraxinea isolates and the teleomorph Hymenoscyphus fraxineus (T. Kowalski) Baral, Queloz, Hosoya are described and ITS sequences are provided.

scholarly journals Analýza aktuálních kompetencí žáků a studentů v určování českých druhů obratlovců

Envigogika ◽  
2014 ◽  
Vol 9 (2) ◽  
Author(s):  
Jan Andreska ◽  
Kateřina Švecová
Keyword(s):  
Czech Republic ◽  
Secondary School ◽  
Secondary School Students ◽  
Practical Knowledge ◽  
Common Species ◽  
Reference Species ◽  
School Students ◽  
The Czech Republic ◽  
Primary And Secondary School

This study focuses on research into the practical knowledge of primary and secondary school students. It is aimed at exploring common species of vertebrates (fish, amphibians, reptiles, birds and mammals) in the Czech Republic. It builds on research byLang and Pravda, 1971. It takes a large part of their methodology and compares the results with selected reference species. The results are presented in graphs and tables.

scholarly journals Territorial System of Ecological Stability as a regional example for Green Infrastructure planning in the Czech Republic

2020 ◽  
Vol 80 ◽  
pp. 1-13 ◽  
Author(s):  
Hana Skokanová ◽  
Tomáš Slach
Keyword(s):  
Czech Republic ◽  
Green Infrastructure ◽  
Natural Ecosystems ◽  
Ecological Stability ◽  
Interconnected System ◽  
The Czech Republic ◽  
Core Areas ◽  
Definition Of ◽  
South Moravia

The  concept  of  Green  Infrastructure  (GI)  is  still  relatively  new  in  the  Czech Republic. When looking at the definition of GI, one can recognise a  relationship  with  the  Czech  Territorial  System  of  Ecological  Stability  (TSES),  which  is  defined  as  “an  interconnected  system  of  natural  as  well as modified semi-natural ecosystems keeping the natural balance”. TSES is a designed system and is an integral part of territorial plans. This article focuses on TSES and its relationship to GI, how it is implemented in  a  Czech  case  study  representing  intensively  used  agricultural  region  in  South  Moravia,  what  the  main  obstacles  are  to  its  implementation  and how TSES can contribute to the connectivity of the landscape. Our results show that nearly two thirds of the planned TSES in the case study area  already  exist  to  some  degree.  There  is  a  difference  between  the  number  and  the  area  of  existing  TSES  elements:  the  area  of  existing  elements  shows  higher  relative  values  than  the  number.  This  is  mainly  due to bio-centres that exist in large forest complexes and their pre-set minimal parameters. Creation of TSES elements increases connectivity of GI, especially those characterised as core areas and bridges

scholarly journals Spiders of the Vine Plants in Southern Moravia

2015 ◽  
Vol 63 (5) ◽  
pp. 1471-1476
Author(s):  
Lucie Havlová ◽  
Vladimír Hula ◽  
Jana Niedobová
Keyword(s):  
Czech Republic ◽  
Soil Management ◽  
Common Species ◽  
Red List ◽  
The Other ◽  
Important Species ◽  
The Czech Republic ◽  
Spider Species ◽  
Southern Moravia ◽  
Different Parts

Araneofauna of vineyards is relatively known in Central Europe but we have a lack of knowledge about araneofauna which occur directly on the vine plants. Our investigation was focused on spiders which live on vine plants, especially on the vine plants trunks. We investigated spiders in six vineyards in southern Moravia (Šatov, Mikulov, Popice, Morkůvky, Nosislav and Blučina). Vineyards were under different soil management, traps were placed on different parts of particular locality (terraced and plain) and all localities were under integrated pest management. We employed two types of cardboard traps for spider collecting during whole vegetation season. Altogether, we collected 21 spider species which belong to seven families. The most important species was Marpissa nivoyi (Lucas, 1836), which is mentioned in the Red List as vulnerable (VU) and Sibianor tantulus (Simon, 1868) which had unknown distribution in the Czech Republic. The other very interesting result is that the most common species is myrmecomorph Synageles venator (Lucas, 1836), which is scarcely recorded in such huge numbers as we documented in our study.

scholarly journals Some aspects of alder decline along the Lužnice River

2012 ◽  
Vol 51 (No. 9) ◽  
pp. 381-391 ◽  
Author(s):  
I. Vyhlídková ◽  
D. Palovčíková ◽  
M. Rybníček ◽  
P. Čermák ◽  
L. Jankovský
Keyword(s):  
Czech Republic ◽  
Tree Ring ◽  
Fungal Pathogen ◽  
Abiotic Factors ◽  
Health Condition ◽  
Causal Agent ◽  
Direct Effects ◽  
Biotic Factor ◽  
The Czech Republic ◽  
Secondary Activation

Alder decline along watercourses is one of the marked manifestations of tree decline in the Czech Republic. Local decline of alder trees is documented in the Czech Republic for about 15 years. The aim of this paper is to evaluate causes of alder decline and assess health conditions of other species of riparian stands at 2 localities on the medium reach of the Lužnice River. Effects were studied of abiotic and biotic stressors on the health condition of tree species. No fungal pathogen was found in tissues of declining alders which would be present in all trees and which could be considered to be the main causal agent of the decline. Even an occurrence of the causal agent of alder decline named alder-Phytophthora has not been proved. Tree-ring analyses demonstrated decreasing trends of an increment in alders; however, an abiotic or biotic factor showing direct effects on the fluctuation of tree ring dimensions has not been positively determined. A marked role in the alder decline is demonstrated particularly by abiotic factors accompanied by the secondary activation of some pathogens. Generally, the phenomenon can be named as polyetiologic decline.

scholarly journals Contribution to bionomy of Hylesinus fraxini (Coleoptera: Curculionidae: Scolytinae) and its monogamy in the Czech Republic

2015 ◽  
Vol 61 (4) ◽  
pp. 240-245
Author(s):  
Karolina Lukášová ◽  
Soňa Zimová
Keyword(s):  
Czech Republic ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Second Generation ◽  
Female Offspring ◽  
Fraxinus Excelsior ◽  
The Czech Republic ◽  
Gallery System

Abstract This study focused on bionomics of the ash bark beetle Hylesinus fraxini (Panzer 1779). The study area was at Jílové u Prahy in the Central Bohemian Region of the Czech Republic. In February 2014, three common ash (Fraxinus excelsior) trees were felled and Hylesinus fraxini infestation was subsequently observed from March. Beetles were collected from 20 debarked logs and dissected under stereomicroscope, and their sex was determined. Five logs with bark beetles were placed into photoeclectors. Beetles that emerged were collected and put into the second photoeclector with fresh ash wood to determine whether they would establish the second generation. The analysis showed that each gallery system with a pair of bark beetles contained one male with only one female. If one adult of H. fraxini was found in the gallery system, it was usually female. Therefore, possible polygamy of Hylesinus fraxini was not confirmed in Central Bohemia. Maternal gallery length significantly correlated with the number of eggs laid per female. Offspring beetles did not establish the second generation, as only maturation feeding occurred in fresh wood.

scholarly journals Comparison of the growth pattern of black walnut (Juglans nigra L.) in two riparian forests in the region of South Moravia, Czech Republic

2011 ◽  
Vol 57 (No. 3) ◽  
pp. 107-113 ◽  
Author(s):  
L. Šálek ◽  
P. Hejcmanová
Keyword(s):  
Czech Republic ◽  
Growth Pattern ◽  
Tree Height ◽  
Management Plan ◽  
Black Walnut ◽  
Riparian Forests ◽  
Juglans Nigra ◽  
The Czech Republic ◽  
The Mean ◽  
South Moravia

The black walnut (Juglans nigra L.), an introduced species into the Czech Republic, is planted for its production of valuable timber. A systematic study of the black walnut growth rate at different localities and consequently the creation of standard volume tables under Central European conditions therefore appear to be of high relevance. The aim of our study was to reveal the black walnut growth pattern in its pure stands in two riparian forests along the Morava and Svratka River (Str&aacute;žnice locality and Židlochovice locality, respectively). To describe and to compare relationships among diameter at breast height (dbh), tree height and age, we used a forest management plan and measured 573 and 670 trees in pure sample stands at Str&aacute;žnice and Židlochovice, respectively. We found out that the measured mean DBH and mean height were consistently higher in Str&aacute;žnice, however the relationships of DBH to height, age to DBH, and age to height showed the same pattern at both localities. The mean heights of trees were 16.3, 24.1, 28.7, 31.9, and 34.5 m in 20, 40, 60, 80, and 100 year age classes and were consistently taller in comparison with other, mainly European, regions. Therefore our results suggest the high potential of black walnut in timber production in riparian forests in the Czech Republic, mainly in the South Moravian region.

scholarly journals Occurrence of Phytophthora multivora and Phytophthora plurivora in the Czech Republic

2013 ◽  
Vol 49 (No. 4) ◽  
pp. 155-164 ◽  
Author(s):  
M. Mrázková ◽  
K. Černý ◽  
M. Tomšovský ◽  
V. Strnadová ◽  
B. Gregorová ◽  
...  
Keyword(s):  
Czech Republic ◽  
Ornamental Plants ◽  
Phytophthora Species ◽  
Forest Trees ◽  
Entire Area ◽  
The Czech Republic ◽  
Level Of Invasion ◽  
Elevational Distribution ◽  
High Level ◽  
South Moravia

Beginning in 2006, a survey of two related Phytophthora species, P. multivora and P. plurivora, was performed in the Czech Republic. Both pathogens were distributed throughout a broad range of environments including forest and riparian stands and probably became naturalised in the country. The two species differed in their frequency and elevational distribution. P. multivora was less frequent, but commonly occurred in the lowest regions such as Central Bohemia and South Moravia, i.e. areas which generally exhibit a high level of invasion. This species was isolated primarily from Quercus robur and found to be involved in oak decline. Moreover it poses a high risk to other forest trees. P. plurivora was distributed in a broad range of elevations over the entire area. A substrate specificity was detected in P. plurivora &ndash; the isolates from forest trees were more aggressive to such trees than the isolates from ericaceous ornamental plants. &nbsp;

scholarly journals A Faunistic Study on Spiders (Araneae) from Vineyard Terraces in the Municipalities of Morkůvky and Mutěnice (South Moravia, Czech Republic)

2014 ◽  
Vol 62 (1) ◽  
pp. 137-154 ◽  
Author(s):  
Ondřej Košulič ◽  
Vladimír Hula
Keyword(s):  
Czech Republic ◽  
Threatened Species ◽  
Red List ◽  
The Czech Republic ◽  
Spider Species ◽  
Artificial Habitats ◽  
South Moravia

Records of spiders of the vineyard terraces from the vicinity of the villages Morkůvky and Mutěnice Jesličky (South Moravia, Czech Republic) are published in the presented work. Spiders were collected by pitfall traping during 30 April – 28 October 2011 and by day and night sweeping of herb vegetation in different dates of 2011. In total 2719 individuals were collected, and identified as 139 species of 23 families. Eighteen species listed in the Red List of threatened species in the Czech Republic were recorded. In vineyard terraces in the vicinity of Morkůvky, 12 threatened species (CR – 2 species, EN – 3 species, VU – 7 species) were found altogether. In the vineyard terraces at Mutěnice, we found 13 threatened spider species (CR – 2 species, EN – 6 species, VU – 5 species). The most significant findings are Alopecosa solitaria (Herman, 1879), Cheiracanthium pennyi O.P.-Cambridge, 1873; Dipoena coracina (C. L. Koch, 1837); Dysdera hungarica Kulczyński, 1897; Eresus kollari Rossi, 1846; Euryopis quinqueguttata Thorell, 1875; Sibianor tantulus (Simon, 1868) and Haplodrassus minor (O.P.-Cambridge, 1879). Besides of these threatened species, we discovered rich spectra of rare spiders related to the well preserved xeric grasslands. Our faunistic results indicate that artificial habitats, such as vineyard terraces, are important refuges for wide spectra of xerothermophilous spiders.

scholarly journals New faunistic records of Hydroptilidae (Insecta, Trichoptera) from the Czech Republic

2018 ◽  
Vol 67 (2) ◽  
pp. 165-173
Author(s):  
Petr Komzák ◽  
Jiří Kroča
Keyword(s):  
Czech Republic ◽  
Endangered Species ◽  
Rare Species ◽  
New Records ◽  
The Czech Republic ◽  
South Moravia ◽  
First Time

Abstract Two species, Orthotrichia angustella (McLachlan, 1865) and Oxyethira tristella Klapálek, 1895, previously considered to be regionally extinct in the Czech Republic, are reported from the Dyje River (South Moravia) as new records for Moravia. Hydroptila martini Marshall, 1977 and Oxyethira falcata Morton, 1893 endangered species are for the first time recorded from Moravia (incl. Silesia). New faunistic data on rare species Hydroptila occulta (Eaton, 1873) and Hydroptila tineoides Dalman, 1819 are also provided.

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