scholarly journals Citizen science reveals the current distribution of the new plant pest Aphis nerii in Slovakia

2020 ◽  
Vol 56 (No. 2) ◽  
pp. 101-106 ◽  
Author(s):  
Adrián Purkart ◽  
Łukasz Depa ◽  
Jozef Kollár ◽  
Martin Suvák ◽  
Milada Holecová ◽  
...  
Keyword(s):  
Social Media ◽  
Czech Republic ◽  
Central Europe ◽  
First Record ◽  
Distribution Data ◽  
Asclepias Syriaca ◽  
The Czech Republic ◽  
Aphis Nerii ◽  
Plant Pest ◽  
New Distribution

This paper presents the first record of the oleander aphid (Aphis nerii Boyer de Fonscolombe, 1841; Hemiptera: Aphididae) in Slovakia, and also one of the most northern record of this natural pest on the invasive common milkweed (Asclepias syriaca Linnaeus.;  Apocynaceae) in Central Europe. Modern social media crowdsourcing has achieved comprehensive distribution data in the horticultural community, and a total of 35 new distribution sites were discovered in 28 Slovak settlements, one new site in Austria, and one in the Czech Republic. It was further established that the oleander aphid could survive in anthropogenic refuges during the winter months.

scholarly journals Cinara splendens (Hemiptera: Aphididae: Lachninae)—First Record in Palaearctic Region

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 911
Author(s):  
Jan Havelka ◽  
Jekaterina Havelka ◽  
Petr Starý
Keyword(s):  
Czech Republic ◽  
Population Density ◽  
Central Europe ◽  
Morphological Characteristics ◽  
First Record ◽  
Douglas Fir ◽  
Palaearctic Region ◽  
The Czech Republic ◽  
Mitochondrial Coi ◽  
South Bohemia

Nearctic aphid Cinara splendens (Gillette and Palmer, 1924) was collected on ornamental Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) in South Bohemia in 2009. It was the first record of this species in the Palaearctic region. The aim of this research was to study the bionomy of this species in Central Europe and to make descriptions of all available morphs, as previous morphological descriptions of C. splendens appeared to be incomplete. Six monitoring sites of this species were established in South Bohemia and were then regularly attended in the period of 2009–2019. The colonies of C. splendens were observed; its natural enemies and honeydew users were also registered. Aphids were collected for the microscope slide preparation, followed by the evaluation of thirty of the basic quantitative and seven qualitative morphological characteristics. Partial sequences of mitochondrial COI and nuclear EF-1α were used to confirm morphology-based identification and to compare samples from the Czech Republic with those of North American origin. Cinarasplendens survived successfully under new ecological conditions, but its population density remained quite low, except for 2009 and 2019, due to a synergistic effect of the dry weather and very high population density of the adelgid Gilletteella coweni (Gillette, 1907), which is a key pest of Douglas fir in the Czech Republic. The principle predators were coccinellid beetles, while the aphidophagous hover flies were less abundant. Together with a weak ability to migrate due to a low number of alate viviparous females in population, C. splendens cannot be a potential pest of P. menziesii in Central Europe.

Diptera associated with sporocarps of Meripilus giganteus in an urban habitat

2013 ◽  
Vol 8 (2) ◽  
pp. 143-167 ◽  
Author(s):  
Jindřich Roháček ◽  
Jan Ševčík
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Dominant Species ◽  
First Record ◽  
Host Specialization ◽  
Urban Habitat ◽  
Qualitative Composition ◽  
The Czech Republic ◽  
High Species Richness ◽  
First Time

AbstractThe Diptera community associated with fruit bodies of the wood-decaying fungus Meripilus giganteus (Pers.) P. Karst., 1882 was investigated in two city parks in Opava (Czech Republic, Central Europe) during the years 2009 and 2010. A total of 10,451 adult specimens of Diptera belonging to 66 species and 17 families emerged from this fungus during our rearing experiments. The six most dominant species, Coboldia fuscipes (Meigen, 1830) (D=50.70%), Drosophila funebris (Fabricius, 1787) (D=21.40%), Logima satchelli (Quate, 1955) (D =14.16%), Forcipomyia squamigera Kieffer, 1916 (D=5.48%), Lycoriella ingenua (Dufour, 1839) (D=2.96%) and Apteromyia claviventris (Strobl, 1909) (D=0.95%) represented 95.65% of all reared specimens. Altogether 59 species were reared from M. giganteus for the first time. Comments on host specialization, degree of synynthropy and other aspects of biology of particular species are provided. The qualitative composition of the fly community associated with M. giganteus in an urban habitat, causes of high species richness, and the predominance of polysaprophagous species in the reared material are discussed. The accidentally reared {itOrnitholeria nidicola} Frey, 1930 (Chiropteromyzidae) represents the first family record from the Czech Republic and the first record of the species from Central Europe.

First record of Geoglossum uliginosum (Ascomycota, Geoglossales) in the Czech Republic.

2012 ◽  
Vol 64 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Viktor Kučera ◽  
Jan Gaisler
Keyword(s):  
Czech Republic ◽  
First Record ◽  
The Czech Republic

First record of a Pseudobaeospora species from the Czech Republic.

2004 ◽  
Vol 56 (3-4) ◽  
pp. 239-246
Author(s):  
Slavomír Adamčík ◽  
Soňa Ripková
Keyword(s):  
Czech Republic ◽  
First Record ◽  
The Czech Republic

Transitional Justice and Changing Memories of the Past in Central Europe

2013 ◽  
Vol 50 (1) ◽  
pp. 24-44
Author(s):  
Roman David
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Transitional Justice ◽  
The Czech Republic ◽  
Divided Societies ◽  
The Past ◽  
The Impact

Memories of wrongdoings are often viewed as an obstacle to reconciliation in divided societies. Is it due to the past or the present politics of the past? To examine the dilemma of essentialism versus presentism, this article investigates the impact of transitional justice on memories of wrongdoing. It theorizes that using different transitional justice strategies to deal with the same wrongdoing shapes memories in different ways. The theory is tested via vignette-based surveys in the Czech Republic, Hungary and Poland, which adopted distinct lustration laws. The results show that wrongdoing is viewed through lustration laws, reflecting present power constellations, not history.

scholarly journals New records of Agromyzidae (Diptera) from Portugal, with an updated checklist

2018 ◽  
Vol 67 (1) ◽  
pp. 7-57 ◽  
Author(s):  
Miloš Černý ◽  
Rui Andrade ◽  
Ana Rita Gonçalves ◽  
Michael von Tschirnhaus
Keyword(s):  
Host Plants ◽  
New Records ◽  
Distribution Data ◽  
New Host ◽  
Old World ◽  
Plant Pest ◽  
First Time ◽  
New Distribution

Abstract New records of 110 species of the acalyptrate Diptera family Agromyzidae are given from Portugal, including Madeira, Porto Santo and the Azores. A quarantine plant pest, Nemorimyza maculosa (Malloch, 1913), was detected in the Old World for the first time. Details on Phytobia xylem- miners and a parthenogenetic Phytomyza species are recorded together with new distribution data. For certain species morphological and taxonomic notes and discussions on known or new host plants are added. A complete checklist of Agromyzidae of Portugal is presented.

scholarly journals The impact of the air temperature on measuring the zenith angle during the year in the ground layer of the atmosphere for the needs of engineering surveying

2021 ◽  
Vol 61 (3) ◽  
pp. 476-488
Author(s):  
Tomáš Suk ◽  
Martin Štroner
Keyword(s):  
Czech Republic ◽  
Numerical Model ◽  
Central Europe ◽  
Air Temperature ◽  
Zenith Angle ◽  
Geographical Area ◽  
Temperature Gradients ◽  
The Czech Republic ◽  
Different Seasons ◽  
The Impact

This paper presents the results of over a year-long experiment dealing with a temperature measurement to calculate the theoretical effect of the atmosphere on the measured zenith angle in engineering surveying. The measurements were performed to determine the accurate and specific temperatures (temperature gradients), which can be recorded in different seasons in the low level of the atmosphere (up to 2 m above the ground, where most Engineering Surveying measurements take place) for the geographical area of Central Europe - specifically the Czech Republic. A numerical model was then applied to the resulting determined temperature gradients to calculate the path of the beam passing through an inhomogeneous atmosphere. From these values, the apparent vertical shifts caused by refraction in a given environment and time were finally determined.

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