scholarly journals Can brief marking campaigns provide reliable dispersal estimates? A Nickerl’s Fritillary (Melitaea aurelia, Lepidoptera: Nymphalidae) case study

2012 ◽  
Vol 23 (3) ◽  
Author(s):  
David Novotný ◽  
Martin Konvička ◽  
Zdeněk Fric

Functions expressing dispersal probability decays with increasing distance are widely used in studies of animal movements. The inverse power function (IPF) exhibits the property of self-similarity, and hence should perform robustly against variation in marking efforts, allowing comparisons across studies. We investigated this function property using dispersal data of Nickerl’s fritillary (Melitaea aurelia), a little studied checkerspot butterfly which is currently expanding in Central Europe. During mark-recapture in South Moravia, Czech Republic, a single researcher worked for the entire flight period in 2005, while in 2006 five researchers worked for just 5 days. Slopes of the fitted functions did not differ between the two seasons, illustrating the robustness of the function and suggesting the possibility to obtain reliable dispersal estimates even from brief marking campaigns. For both years, it was predicted that approximately one individual per one thousand would cross 10 km distance, the maximum distance separating the most isolated colonies in the region.

2020 ◽  
Vol 80 ◽  
pp. 1-13 ◽  
Author(s):  
Hana Skokanová ◽  
Tomáš Slach

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


2021 ◽  
Vol 7 (1) ◽  
pp. 1473-1491
Author(s):  
Alžběta Čerevková

Abstract The main goal of this article is to present an overview of current knowledge about the subsistence strategy of Linear Pottery culture (LBK) in Moravia, Czech Republic. The main aspect of the subsistence strategy mentioned here will be the issue of dietary. Early Neolithic sites that in some way contributed to the knowledge about the dietary character (both meat and plant food) will be presented here. On this occasion, a case study of the Žádovice site, which belongs to the most recently analyzed settlements, will be presented. In addition, the methods used in the subsistence strategy of LBK in Moravia will be mentioned. The existing knowledge will be included in a broader settlement context and will be compared with each other. For the time being, it seems that in terms of the species spectrum of farmed animals, the area of Moravia does not differ from the situation known from Central Europe. Certain geographical differences are possible in Moravia, but this hypothesis must be verified in the future, depending on the expansion of the database. The study thus represents a springboard for further research in this area.


2019 ◽  
Vol 65 (No. 11) ◽  
pp. 529-538
Author(s):  
Jana Podhrázská ◽  
Jan Szturc ◽  
Petr Karásek ◽  
Josef Kučera ◽  
Jana Konečná

To analyse the potential changes in soil characteristics and associated impacts on the land price, the region of South Moravia was selected, strongly threatened by erosion and by claiming the most valuable land in suburban territories due to industrial and housing expansion. For the detailed analysis of the impacts of erosion and land appropriation in the region of South Moravia, the model territories of Brno surroundings with the municipality of Dolní Heršpice and Hustopeče surroundings with the municipality of Starovice were selected. The price of land degraded by potential erosion in the South Moravian region fluctuates between 88 and 2 400 EUR/ha. In the past 180 years, 148 ha of agricultural land in the total value of 822 815 EUR have been used for construction in the location under study in Dolní Heršpice. Further growth of the municipality should involve additional appropriation of agricultural land in the value of 411 000 EUR. In the studied land block of 100.5 ha, located in the Starovice municipality area, water erosion caused degradation in the total value of 92 000 EUR in the period 1978–2013. Extensive losses of fertile agricultural land are to be expected in the future. Their main causes are continuing land appropriation and degradation processes – soil erosion.


2015 ◽  
Vol 7 (9) ◽  
pp. 12758-12786 ◽  
Author(s):  
Robert Stojanov ◽  
Barbora Duží ◽  
Tomáš Daněk ◽  
Daniel Němec ◽  
David Procházka

Viruses ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1445
Author(s):  
Silvie Šikutová ◽  
Patrik Dočkal ◽  
Petra Straková ◽  
Jan Mendel ◽  
Oldřich Šebesta ◽  
...  

RNA of Kyzylagach virus (KYZV), a Sindbis-like mosquito-borne alphavirus from Western equine encephalitis virus complex, was detected in four pools (out of 221 pools examined), encompassing 10,784 female Culex modestus mosquitoes collected at a fishpond in south Moravia, Czech Republic, with a minimum infection rate of 0.04%. This alphavirus was never detected in Central Europe before.


Author(s):  
Břetislav Novotný ◽  
Vladimír Hula ◽  
Jana Niedobová

This study is focused on distribution of the spider Brigittea civica (Lucas, 1850). It is probably a non‑native species in the Czech Republic, which occurs synanthropically in central European conditions. It is well adapted to coexistence with humans, and since there is no natural enemy, it may freely redistribute. The aim of this study was to supplement the knowledge of distribution of this species in South Moravia. The present occurrence data were recorded from a total of 92 towns and villages via observing typical cobwebs. In 86 cases, the incidence was observed, in only six cases, there was not found even a single cobweb of the spider. Based on our records, we can suggest that B. civica is much more common than was previously mapped and the presence of this species in the Czech Republic was underestimated.


Author(s):  
Petr Klusáček ◽  
Tomáš Krejčí ◽  
Stanislav Martinát ◽  
Josef Kunc ◽  
Robert Osman ◽  
...  

The paper deals with the regeneration of agricultural brownfields in the Czech Republic. The first part of paper introduces the issue and the most important results of the previous scientific researches. The second part describes the goal of paper and methodology of own research activities. The third part brings own analysis of the Czechinvest Agency dataset of the non-regenerated agricultural brownfields collected in period 2005–2007 updated for the case study area of the South Moravian Region according the dataset of the Regional Development Agency of the South Moravia (2010). The forth part pays attention to origin and potential location of agricultural brownfields in the South Moravian Region – the issue is demonstrated by using of the selected indicators showing decrease of agricultural production in this region. The fifth part brings the more detailed analysis of non-regenerated agricultural brownfields for the South Moravian Region. The six parts describes the selected examples of the regenerated agricultural brownfields. The final part contains discussion of main results and brings some recommendations which could be useful and inspiring for the different groups of stakeholders (e.g. owners, investors, representatives of public administration etc.) who are involved in process of the regeneration of agricultural brownfields.


2013 ◽  
Vol 42 (4) ◽  
Author(s):  
Zdeňka Žáková ◽  
Manfred Pum ◽  
Pavel Sedláček ◽  
Hana Mlejnková ◽  
František Hindák

AbstractThe representatives of the genus Compsopogon Montagne in Bory et Durieaux (Rhodophyta) are basically tropical or subtropical algae. In central Europe they are only found in aquaria and in water bodies affected by thermal effluents, like the species C. aeruginosus (J. Agardh) Kützing in the Pulkau River (Austria), a tributary of the Dyje /Thaya River (Austria, Czech Republic). The first observation of this species was made in 2007 in the Pulkau River. In autumn 2010 the species was also observed at lower densities in an approximately 20 km section of the Dyje/Thaya River between the mouth of the Pulkau River (A) and the Nové Mlýny Reservoir (CR). Recently, the species was found also in Skryjský Brook, a tributary of the Jihlava River, below the cooling water effluent from the Dukovany Nuclear Power Plant, South Moravia, Czech Republic. This is the second finding of representatives of the genus Compsopogon in rivers in central Europe.


2021 ◽  
pp. 101375
Author(s):  
Richard Ševčík ◽  
Jan Riegert ◽  
Karel Šťastný ◽  
Jan Zárybnický ◽  
Markéta Zárybnická

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