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EN
Compared to chewing lice, symbiotic and studies on their biology, ecology and survival strategies are still rare. To describe the ecology and morphology of the mite species Proctophyllodes megaphyllus, a symbiont of the alpine accentor Prunella collaris, 150 accentors were captured in the West Carpathian Mountains of Slovakia. The mites extracted from the birds were sexed and their specific body structures were measured. In total 2144 individuals of P. megaphyllus were collected from 100 accentors. Male mites collected in autumn, after the bird's postnuptial moult, reached the largest size. At the same time, mite prevalence reached maximum while the mean intensity of infestation was at its lowest. Our results suggest that mites preferred newly coated feathers after a moult and radiated horizontally, infesting birds at shared roosting sites where alpine accentors tend to reoccur. This study is one of the few evaluations of seasonal variation in ecology and morphology of feather mites in alpine conditions.
PL
Celem badań było poznanie wpływu składowiska odpadów komunalnych na występowanie mezofauny (Acari, Colembola) w środowisku glebowym na terenie składowiska i w jego najbliższym otoczeniu. Badania przeprowadzono na terenie składowiska odpadów komunalnych w Tarnowie w latach 2010–2011. Próbki gleby pobierano z czterech stanowisk zlokalizowanych na terenie składowiska i w jego sąsiedztwie w okresie wiosny, lata oraz jesieni. Izolację mezofauny z gleby przeprowadzono za pomocą aparatu Tullgrena. Wyniki przeprowadzonych analiz wykazały, że na terenie bezpośrednio przylegającym do czynnego sektora składowiska liczebność mezofauny glebowej była najmniejsza. Wykazano istotną ujemną korelację między zawartością kadmu, niklu, cynku, miedzi, chromu i wielopierścieniowych węglowodorów aromatycznych (WWA), takich jak: naftalen, fenantren, antracen, fluoranten, chryzen, benzo(a)antracen, benzo(a)piren, benzo(b)fluoranten, benzo( a)perylen, a liczebnością skoczogonków w glebie. Występujące w glebie nikiel, miedź i chrom miały istotny wpływ na występowanie roztoczy glebowych na terenie składowiska. Wykazano, że liczebność mezofauny glebowej była większa w glebie o odczynie lekko kwaśnym niż zasadowym.
EN
The aim of the wok was to investigate the effect of municipal landfill in Tarnów on the occurrence of mesofauna (Acari, Colembola) in soil in the landfill site and in its immediate surroundings. The study was conducted at the municipal landfill in Tarnów in 2010–2011. Soil samples were collected in spring, summer and autumn at four sites located in the area of the landfill and in its vicinity. The soil mesofauna was isolated in the Tullgren apparatus. Conducted analyses revealed that the lowest number of soil mesofauna was in soil from plots located near the active landfill sector. There was a significant negative correlation between the content of cadmium, nickel, zinc, copper, chromium and polycyclic aromatic hydrocarbons (PAHs) such as: naphtalene, phenanthrene, anthracene, fluoranthene, chrysene, benzo(a)anthracene, benzo(a)fluoranthene, benzo(a)perylene, benzo(a)pyrene, and with the springtails number in the soil. Presence of elements Ni, Cu and Cr in soil had a significant effect on the occurrence of soil mites in the landfill. It has been shown that soil mezofauna was more numerous in the slightly acidic than alkaline soil.
3
Content available The occurrence of soil mesofauna in organic crops
EN
This study presents the quantitative and qualitative analysis of soil arthropods (Arachnida: Acari, Hexapoda: Collembola) occurring in four norfolk crop rotation, cultivated by organic method. The field research was carried out in the years 20142015 at the Experimental Research Station Swojec, belonging to the Wrocław University of Environmental and Life Sciences and at an organic farm in Kamieniec Wrocławski, Poland. In both locations, irrespectively of crop type, Prostigmata were the most common soil mites. Astigmata and predatory Gamasida were less numerous, while Oribatida were the least numerous. The largest number of springtails was noted in organic cultivation of winter rye. Less numerous Collembola were present in oat and fodder pea, and in the smallest number in organic cultivation of potato. Obtained results suggest that organic cultivation of cereals promotes the occurrence of beneficial mesofauna, mainly due to the lower frequency of agrotechnical activities in comparison to potato cultivation. The most numerous species of Collembola were: representatives of genera Mesaphorura and Desoria.
PL
Celem pracy była analiza ilościowa i jakościowa zgrupowań stawonogów glebowych (Arachnida: Acari, Hexapoda: Collembola) występujących w czterech uprawach płodozmianu norfolskiego, prowadzonych metodą ekologiczną. Doświadczenie polowe prowadzono w latach 2014-2015, w Rolniczym Zakładzie Doświadczalnym Swojec, należącym do Uniwersytetu Przyrodniczego we Wrocławiu oraz w gospodarstwie ekologicznym w Kamieńcu Wrocławskim. W obu miejscowościach, niezależnie od rośliny uprawnej, do najliczniejszych roztoczy glebowych należały Prostigmata. Mniej liczne były Astigmata oraz drapieżne Gamasida, a najmniej liczne Oribatida. W przypadku skoczogonków najwięcej tych stawonogów stwierdzono w ekologicznej uprawie żyta ozimego. Mniej licznie Collembola występowały w uprawie owsa i grochu pastewnego, a w najmniejszej liczbie w ekologicznej uprawie ziemniaka. Na podstawie przeprowadzonych badań można stwierdzić, że ekologiczna uprawa zbóż sprzyja występowaniu pożytecznej mezofauny, głównie ze względu na mniejszą częstotliwość wykonywania zabiegów agrotechnicznych w porównaniu do uprawy ziemniaka. Najliczniej oznaczanymi gatunkami Collembola były: Mesaphorura oraz przedstawiciele rodzaju Desoria.
EN
Investigations concerning the effect of hemp oil on mortality of the foxglove aphid (Aulacorthum solani Kalt.) and the two spotted spider mite (Tetranychus urticae Koch) were conducted in the years 2014-2015. The tested essential oil was produced at the Institute of Natural Fibers and Medicinal Plants in Poznan. It was obtained by steam distillation of fresh panicles of Polish hemp cultivars, Beniko, Bialobrzeskie and Silesia, with low cannabinoid contents, including THC (max. 0.2% plant fresh matter). The effect of essential oil on the investigated pests was determined following the application of aqueous emulsion solution at 0.02, 0.05 and 0.1%. Mortality of agrophages was determined 24, 48 and 72 h after treatment. In this study a very high efficacy of the essential oil produced from hemp panicles was found in the reduction of population size of the foxglove aphid (A. solani). Already at 24 h after its application at a concentration of 0.1% pest mortality rate was 98.20%, while after 48 h it reached 100%. A significant, although much lesser effect of oil on the aphid population was recorded when applying it at 0.05%, with the mortality rate of the true bug after 72 h amounting to 57.33%. Essential oil also showed an effect on the two spotted spider mite (T. urticae). Following the oil application, irrespective of its concentration, a significant effect on mite mortality was observed. Its action was the strongest at its highest concentration, ie 0.1%, while mortality of the pest at 24, 48 and 72 h after treatment was 83.28, 95.83 and 98.72%, respectively.
EN
The biodiversity is a core value in all ecosystems. The nitrogen (N) addition in the form of N fertilizers has effect to a wide variety of fauna living in soils. N losses from arable land should tend not only to cause water eutrophication, but also lower soil nutrient stocks and decreasing soil fertility. This study determined the effect of N soil content in conventional tillage agro-ecosystem on the soil fauna diversity in grass stripes under the sloped arable land. My objective here is to observe soil faunal taxa living in grass filter strips. The goal of this work is to describe the relationship of soil fauna to the nitrate (NO3-) content runoff from fields and captured in grass filter strips. The field work was carried out during period from May until June 2013, for soil fauna investigation the extraction in Berlese — Tullgren funnels were used. Nitratenitrogen (NO3-N) was extracted from air-dried sieved soil using a 2 M KCl solution. Altogether 2,020 specimens representing 19 arthropod groups were found in twenty study sites. Most abundant taxa found practically in each of sampling site were Collembola, Acari and the suborder of Oribatid mites. Statistical evaluations revealed that the effect of NO3- concentration in the soil on the average value of the total edaphic individual numbers was statistically significant; the same applies for the abundance of Acari mites. No significant results were find for the Oribatid mites and the Collembola family; however, there was a clear trend of increasing abundance with increasing concentrations of NO3-.
PL
W artykule przedstawiono zgłoszenia w latach 2004-2011 w ramach systemu RASFF o zagrożeniach dotyczących zanieczyszczenia środków spożywczych szkodnikami magazynowymi. Obserwuje się wzrost liczby powiadomień w poszczególnych latach oraz zgłoszeń o odrzuceniu na granicy. Zwraca uwagę liczba powiadomień z Polski, w tym powiadomień alertowych. Obecność szkodników w środkach spożywczych może stanowić poważny problem dla bezpieczeństwa żywności.
EN
Notifications to RASFF concerning the contamination of foodstuff with warehouse pests in the years 2004-2011 have been presented. An increase of the number of such notifications as well as of the border rejections over in every year the period 2004-2011 has been observed. The number of notifications from Poland, including the alert notifications is of particular importance. Such evidence of the presence of pests in the foodstuffs may become a serious problem for food safety.
PL
Roztocz Varroa destructor od ponad 20 lat jest obecny w polskich pasiekach, powodując w nich znaczne straty, osłabienie rodzin pszczelich, a co za tym idzie zmniejszenie produkcji pszczelarskiej. Corocznie należy zwalczać tego pasożyta, co w pewien sposób może zmniejszyć nasilenie jego inwazji. Do zwalczania warrozy stosuje się różne preparaty, które oparte są o bazę chemicznych środków owadobójczych. Tego typu preparaty nie mogą być używane w pasiekach ekologicznych, w których dopuszcza się jedynie stosowanie metod biotechnicznych oraz wykorzystanie kwasów organicznych i substancji roślinnych. W roku 2007 Skubida i Sem-kiw stwierdzili wysoką skuteczność warroabójczą kwasu szczawiowego. Jednakże jego stosowanie możliwe jest jedynie w okresie, kiedy w rodzinach nie ma już czerwiu, z reguły na przełomie października i listopada. Tak późne stosowanie kwasu powoduje, że do momentu jego użycia, w rodzinach następuje intensywny rozwój pasożyta, dlatego też celowe jest stosowanie środków warroabójczych wcześniej, już po ostatnim miodobraniu, czyli na przełomie lipca i sierpnia. Dla większości pasiek jest to termin optymalny, gdyż w zasadzie o tej porze kończą się pożytki dla pszczół w większości rejonów w kraju. W ostatnich latach jako nowy środek do walki z warrozą został zarejestrowany w Polsce Api Life Var, który z uwagi na jego skład może być stosowany w pasiekach ekologicznych. Preparat ten został użyty w roku 2008 w pasiece ekologicznej Zakładu Technologii Pasiecznych Oddziału Pszczelnictwa, gdzie oceniono go pozytywnie.
EN
Varroa destructor has been present for 20 years in Polish apiaries causing considerable losses, weakness of bee colonies and beekeeping production decreasing. To decrease invasion of this parasite every year treatment is needed. To abate varoatosis the various preparations based on chemic insecticides are used. These types of preparations couldn't be used in organic apiaries. Admissible are: biological methods, organic acids and vegetable substances. In the last years we certified high efficacy of oxalic acid. Its using is possible in the period when there is no brood in bee colonies (October, November). So late acid using is the problem because the parasite 's growth is very intensive to this moment. So necessary is earlier using anti-varroa preparations, after the latest honey harvest (the end of July and the beginning of August). It's the optimum time for the most of Polish apiaries in the various regions. In the last years Api Life Vare was registered as the preparation\ against Varroa. Its composition permits using it in organic apiaries. In 2008 preparation was applied in Apiculture Division in Pulawy in organic apiary and obtained a positive opinion.
EN
Artificial defoliation is often used in studies of induced defense reactions of plants to damage by arthropods. However, little is known about the role of various external factors that may determine the nature of inducible defenses. Here we tested whether light level under which plants grow could affect the natural invasion of two-spotted spider mite (Tetranychus urticae Koch) with a broad range of host plants. For this study we used two host species that differ widely in shade tolerance: shade-adapted Norway maple (Acer platanoides L.) and sun-adapted European mountain ash (Sorbus aucuparia L.). The purpose of this study was to explore mite invasion and to test whether prior simulated defoliation, light conditions and host species differences in secondary defense metabolites (soluble phenolics) play a role in the pattern of invasion. One-year-old maple and ash seedlings growing in pots were placed into two shade houses that produced a treatment with 5% light transmittance, and the second group of seedlings was placed in full sunlight. The experiment was carried out in a location chronically affected by spider mite presence. The defoliation was performed in mid-May by manual removal of 0 (control), 25, 50, 75 and 100% of leaves. Natural two-spotted spider mite invasion took place in mid-July and was observed only on seedlings growing in the shade. Mites were found on leaves of almost all seedlings. However, the intensity of feeding damage to leaves was related to the level of earlier defoliation. Control and slightly to moderately (25.50%) defoliated seedlings of both species were most affected by spider mites. Mite feeding behavior was directly linked to changes in concentration of leaf carbon and phenolic compounds. Carbon content was positively correlated with the percent of seedlings damaged by spider mites in both tree species (R[^2]> 0.80; P <0.05). The highest concentration of phenolic compounds was observed in leaves of seedlings subjected to 50 and 75% defoliation. Our results indicated that two-spotted spider mites preferred plants grown in a shade environment and within these plants favored leaves which are high in carbon and low in phenolic compounds. Both plant species were able to survive early season leaf damage inflicted by spider mites. Inducible phenolic compounds were among defensive secondary metabolites contributing to low spider mite success in plants recovering from artificial spring defoliation.
EN
Acari and Collembola are the dominant groups within the mycophagous arthropods linked to fungal-based food webs in undisturbed soils. Studies on soil microarthropod communities in old, traditional, multifunctional farmland, and studies on secondary succession following marginalization and abandonment of traditional farmland are lacking in Europe. Thus, we studied patterns of microarthropod communities related to different land use regimes in a traditional farm in Western Norway. Soil mesofauna communities were analysed at four sites: site OM - old, herb rich, open hay meadow in traditional use; site F1 - abandoned hay meadow with pollarded trees (first fallow); site F2 - deciduous woodland (abandoned hay meadow with old pollards, heavily overgrown, second fallow); and site RM - restored hay meadow with scattered, newly pollarded trees. The abundance of the taxa varied considerably between habitats (for instance: total microarthropods - from 112.4 [plus or minus] 11.4 to 29.2 [plus or minus] 3.4, Acari - from 83.9[plus or minus] 10.2 to 15.6[plus or minus] 1.8 and Oribatida - from 68.6[plus or minus] 9.5 to 8.2[plus or minus] 1.3 x 10[^3] m[^-2], for OM and RM sites respectively). The abundance of total Acari, total Oribatida, Oribatida adults and juveniles differed significantly between OM-F1, OM-RM, OM-F2 and RM-F2 sites and it was significantly correlated with continuity of land use and/or tree cover. Oribatida was the group with the highest densities and percentage dominance (except RM site). The percent contribution of total Oribatida in Acari abundance was negatively correlated with the percentage of Actinedida. Nine Ptyctimina species, six Nothroidea species and four Uropodina species were detected, but most of them occurred as single individuals. Abundance of three Ptyctimina [Atropacarus (Atropacarus) striculus (C.L. Koch), Phthiracarus ferrugineus (C.L. Koch), P. globosus (C.L. Koch)], and two Uropodina [Trachytes pauperior Berlese and Dinychus perforatus Kramer] species differed significantly between some sites. The percentage similarity (Renkonen index) has a high indicative value for measuring the distance between ecosystems with apparently similar communities of Uropodina. The OM and RM sites differed most and site pairs - F1-F2 and F1-RM were the most similar. The densities of some taxa were about two- or three-fold greater for the F1site than the RM site. Ratios of Acari to Collembola, total Oribatida to Collembola and total Oribatida to Actinedida were highest on OM site (3.2, 2.6, 11.8 respectively) and decreased in the following order: F2>F1>RM (as an example, total Oribatida to Actinedida ratios were 9.8 on F2 site, 6.2 on F1 and 3.1 on RM). These ratios differed significantly between the OM and RM sites. The lowest ratios on RM site are probably an effect of recent disturbance (change of land use) of this site. Our results suggest that soil in OM site, despite constant disturbance during long time (scything, hay raking and sheep grazing), has probably a stable mesofauna community with the highest abundance of Oribatida. Our results have provided new knowledge about ecosystems in traditional farmland and can be used in monitoring programmes of post-arable land.
EN
The communities of soil mesofauna were studied in the year 2004 along three transects crossed shelterbelts of different age (6, 11 and 170 years old) and adjacent wheat fields at a distance of 0.5, 15 and 50 m. Studies were carried out in the Gen. D. Chłapowski Landscape Park near Turew, Western Poland (16 [degrees] 45'E, 52 [degrees] 01'W). The age of shelterbelts vegetation affected soil mesofauna of adjacent fields in a diverse way. The mean density of mites amounts 7.4 x 10[^3] ind. m[^-2] and 2.6 x 10[^3] ind. m[^-2] respectively for the shelterbelts and fields. Densities of Acarina communities were affected not only by the presence of a shelterbelt (P = 0.000) but also its age (P = 0.02) and the distance from it (P = 0.000), and these effects were similar in spring and autumn (P = 0.08). The mean density of springtail noted in shelterbelts of different age was 2.0 x 10[^3] ind. m[^-2]. Although the effect of the the shelterbelts. age on the density of Collembola was not found (P= 0.3), the densities were different in shelterbelts and in adjacent fields (P = 0.006) but statistical significance was found only between spring and autumn (P = 0.000). The distance from the shelterbelt influenced (though less intensely) the density of Collembola on adjacent field (P = 0.01). Eighteen species of Collembola were found in studied shelterbelts and fields. Isotoma notabilis Schaff. usually dominated in shelterbelts. Its contribution to abundance of communities varied depending on the age of shelterbelts (in 6 years old shelterbelt it constituted as many as 71% of the whole community). In 11 years old shelterbelt Schoetella ununguiculata (Tullb.), was more common than Isotoma notabilis Schaff. and in the 170 years old shelterbelt the dominant species was Onychiurus armatus (Tullb.). Proisotoma minuta (Tullb.), Isotoma notabilis or Onychiurus armatus dominated in adjacent fields though their contribution was depended on shelterbelt.s age and on the distance from it.
11
EN
Soil is an important component for monitoring of sustainability of land use in relation to both the conservation of natural resources and biodiversity of ecosystems. Recently research has focused on the role of mites (Acari) in biomonitoring and their importance as soil bioindicators. Mite communities are extremely sensitive to all types of soil disturbance. This article presents a review of some studies on mite communities in order to discuss whether the diversity and numbers of mites present in the soil can reflect human impact on ecosystems and landscape, and whether mites can be used in monitoring systems. Limited data available about mite communities in agricultural ecosystems (in use and abandoned) in SW Norway from author.s own studies (published and in prep.) are compared with data from ca. 55 papers (mostly concerning Europe). IT was concluded that: (1) Most oribatid mites with their long life span, low fecundity, slow development and low dispersion ability can be a robust indicator of the environment. Changes in the dominance structure of mite communities (Oribatida to Actinedida ratio) are suggested to be an 'early warning' criterion for stressed mite communities. (2) Both the number of species and the percentage abundance of Nothroidea and Ptyctimina decrease following human impact on the landscape. Even if individuals cannot be determined to species levels (e.g. Ptyctimina), the percent contribution and frequency of these taxa in relation to stress gradient (input levels) within the landscape provide valuable data. (3) Tectocepheus velatus (Michael 1880) and other oribatid taxa with a similar lifehistorystrategy should be evaluated as potential bioindicators for impoverished ecosystems. (4) National and local reference data sets on the biodiversity of mite communities in diverse habitats and along stress gradients need to be collected. (5) Residual natural and semi-natural habitats (such as old woodlands, riparian ecosystems, old hedges and grasslands) with species-rich mite communities found in rural and urban landscapes should be preserved as refuges for dispersion of soil fauna. (6) Comparison of mite communities in traditional, low-input farmland in Norway with those from humandominated landscape in other European countries can contribute to a better understanding of how human activity alters biodiversity along land-use gradients. This will aid the development of a soil bioindicator system. (7) There is a need to develop standardised procedures for the collection of samples and analyses of data sets adapted to ecological soil acarology.
PL
Zwały poprzemysłowe nie są tylko obszarem zdegradowanym, wymagającym kosztownej rekultywacji. Mogą one być dla naukowców interesującym obiektem doświadczalnym, który pozwala badać proces kształtowania się zespołów życia od samego początku. Najwięcej uwagi poświęcano dotąd rozwojowi zespołów roślinnych na hałdach, znacznie słabiej poznano ich faunę glebową, w tym roztocze. Roztocze to zwykle najliczniejsza w glebach, w tym na hałdach, grupa mezofauny glebowej. Mechowce (Oribatida) - główna grupa roztoczy - spełniają kluczową rolę w łańcuchu detrytusowym w glebie, będąc stymulatorami rozwoju mikroorganizmów glebowych. W artykule przedstawiono charakterystykę zgrupowań Oribatida na rekultywowanych i nierekultywowanych zwałach poprzemyslowych w rejonie Górnego Śląska.
EN
Banks of industrial spoils are not only degraded areas that require costly reclamation. They may be an interesting experimental site for researchers which allows investigating the formulation of life complexes from the very beginning. So far most of the attention has been devoted to the development of plant complexes on waste tips while the soil fauna including mites has been much less recognized. Mites usually represent the most numerous group of soil mezofauna in soils also in waste tips. Oribatida - the main group of mites plays the key role in the detritus chain in soil since it stimulates the development of soil microorganisms. The paper presents characteristics of Oribatida groupings on reclaimed and non-reclaimed banks of industrial spoils in the area of the Upper Silesia. The banks comprised colliery spoils and tips from zinc and lead ores processing, covered with a plant cover with a different duration of mites groupings formation. The observations indicate that positive recultivation effects may result from an artificial introduction of some number of mites with soil and may not necessarily prove sustainable. Evaluating the development of soil groupings of saprofagic Oribatida on waste tips in a longer time perspective may show that reclamation should be abandoned since natural succession leads to formulation of rich, complex soil mites.
14
Content available remote Anti-mite Modified Polypropylene Fibres and Bedding Inserts Containing Such Fibres
EN
Research has been conducted in the Institute of Chemical Fibres with the aim of preparing synthetic fibres which can inhibit the growth of house dust mites thus limiting or eliminating a cause of allergy. The physical-mechanical properties of anti-mite polypropylene fibres and needle-punched nonwovens containing such fibres are presented. The anti-mite activity was tested according to the French standard NF G 39-011. A nonwoven containing modified polypropylene staple fibres was used to prepare bedding inserts, which were then tested with regard to their anti-allergic usefulness. It was found that the material causes a very distinct reduction in mite guanine concentration, and the bedding insert largely contributes to a much more comfortable feeling for the patients. The anti-mite nonwoven in the form of bedding inserts was approved by the Office of Registration for Medicinal Products, Medical Devices and Biocidal Products, as well as by the Ministry of Health.
PL
W artykule przedstawiono podstawowe informacje literaturowe dotyczące chorób alergicznych, wywołanych przez roztocza kurzu domowego oraz podano przykłady znanych włókien i włókienniczych wyrobów przeciwroztoczowych. W części doświadczalnej omówiono badania związane z opracowaniem w Instytucie Włókien Chemicznych włókien ograniczających rozwój roztoczy kurzu domowego, a tym samym ograniczających lub/i eliminujących przyczyny alergii. Przedstawiono właściwości fizyko-mechaniczne otrzymanych włókien przeciwroztoczowych i włóknin oraz wyniki badań aktywności przeciwroztoczowej. Z włóknin, wytworzonych z udziałem modyfikowanych włókien, przygotowano wkłady do pościeli, które poddano ocenie przydatności przeciwalergicznej. Stwierdzono, że badane włókniny powodują znamienny statystycznie spadek stężenia guaniny roztoczowej, podobnie jak wkłady do pościeli. Wkłady do pościeli powodują u chorych z alergią roztoczową znaczącą poprawę samopoczucia. Włóknina przeciwroztoczowa w formie wkładów do pościeli uzyskała pozytywną opinię Urzędu Rejestracji Produktów Leczniczych, Wyrobów Medycznych i Produktów Biobójczych oraz pozwolenie Ministra Zdrowia na obrót.
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