Wyniki wyszukiwania

1

Metagenomic analysis of acquired antibiotic resistance determinants in the gut microbiota of wild boars (Sus scrofa) – preliminary results

100%

Libisch B., Kereszteny T., Kerenyi Z., Kocsis R., Sipos R., Papp P. P., Olasz F.

Journal of Veterinary Research

|

2020

|

tom 64

|

nr 1

2

Further studies in chromosome numbers of Polish angiosperms. Part XXIV

100%

Pogan E., Jankun A., Wcislo H.

Acta Biologica Cracoviensia. Series Botanica

|

1991

|

tom 33

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Effect of sex on results of slaughter analysis of grey partridge Perdix perdix

100%

Wnuk A., Lukasiewicz M., Mroczek-Sosnowska N., Niemiec J., Popczyk B., Balcerak M.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

|

2014

|

tom 53

The experimental material included grey partridges Perdix perdix planned for re-introduction into the natural habitat, reared at the Center of Game Breeding on the area of Mazovia Province. 10 hens and 10 roosters were selected for slaughter. After exsanguination, plucking and evisceration, the birds were cooled for 24 h to a temperature of 4°C. The carcasses were subjected to dissection to enable determination of dressing percentage and calculation in the carcass contents of: breast muscles, leg muscles, adipose fat and giblets. The study showed no effect of sex on results of slaughter analysis of grey partridge.

4

Adrenocortical variability in the life history of bank voles

100%

Bujalska G., Evsikov V., Gerlinskaya L., Grika L., Grum L., Moshkin M.

Polish Ecological Studies

|

1994

|

tom 20

|

nr 3-4

5

The search for polyprenols in dendroflora of Vietnam

84%

Marczewski A., Ciepichal E., Canh L. X., Bach T. T., Swiezewska E., Chojnacki T.

Acta Biochimica Polonica

|

2007

|

tom 54

|

nr 4

727-732

The occurrence of polyprenols in leaves of over 340 species of dendroflora in natural habitats in the regions of Hanoi and Hue in Vietnam was studied. Plant material was collected in the late autumn (October/November) during the end of a vegetation season. Leaves of about 200 plant species did not contain detectable amounts of polyprenols in contrast to few systematic families, e.g. Moraceae,Euphorbiaceae, where polyprenols were highly abundant and their pattern could be used as a chemotaxonomic criterion. Most often dominating polyprenols were prenol-11 and prenol-12. In several angiosperm species prenol-13 and detectable amounts of prenol-14 were also found. The incidence of prenol-13 and -14 was not restricted to a specific taxonomic group since species exhibiting domination of such longer chain polyprenols belonged to various systematic families. In some plants (e.g. Ceiba pentandra) α-cispolyprenols were accompanied by α-transcounterparts. This report describes several new plant species that may serve as natural sources of long chain polyprenols

6

Survival and causes of death among released brown hares (Lepus europaeus Pallas, 1778) in Central Poland

84%

Misiorowska M., Wasilewski M.

Acta Theriologica

|

2012

|

tom 57

|

nr 4

We describe the results of our research on population dynamics among brown hares reared in enclosures and then released into suitable natural habitat. Radio-tracking was used to follow the fate of 60 released brown hares over a 4-year period, extending between November 2005 and November 2009. The survival rate among these animals after 12 months was estimated to be 37 %, with 22 tagged individuals surviving beyond 1 year post-release. The highest (40 %) level of mortality characterised the first month after release, while a second period of enhanced mortality coincided with the breeding season (altogether accounting for a 20 % mortality rate). There was no significant relationship between body mass and mortality rate in the first month following release. A natural cause of death was predation by mammals, which accounted for some 31 % of all losses. Remaining causes were poaching (13 %), hits by vehicles (7 %) and unidentified causes (9 %). However, in at least 40 % of cases, it was not possible to determine the date when a released animal died, to say nothing of the cause of death.

7

Preliminary botanical studies in Johnsons Dock Area (Livingston, Antarctica)

84%

Olech M.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1989

|

tom 37

|

nr 7-9

8

Experiments with crop mixtures: interactions, designs and interpretation

84%

Sobkowicz P., Podgorska-Lesiak M.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

|

2007

|

tom 10

|

nr 2

9

The analysis of taxonomical relationships between Crataegus L. taxa occurring in their natural habitats in Poland

84%

Zaras-Januszkiewicz E.

Annals of Warsaw University of Life Sciences - SGGW. Horticulture and Landscape Architecture

|

2008

|

tom 29

10

The estimation of selected heavy metals and macroelement content in Dianthus carthusianorum L. in the serpentine dump of natural habitat

84%

Koszelnik-Leszek A., Wall L.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2009

|

tom 541

|

nr 1

In order to estimate the content of selected heavy metals (Co, Cr, Ni i Mn) and macroelements plant material of Dianthus carthusianorum L. was collected from the serpentine dump in Sobótka (Lower Silesia), as well as from two natural habitat of the mentioned species located in the area of Mirów (Kraków - Częstochowa Highland) and Kamieniec Wrocławski (Lower Silesia). In plant material subjected to the examination there were found higher concentrations of Ni, Cr i Co in the samples of Dianthus carthusianorum L. growing on the dump in comparison to plants of the same species originating from natural habitats. Comparing macroelement content in dianthus variety coming from the serpentine dump in Sobótka and those from plants growing in natural habitats it was possible to state that plants from the dump population contained lower concentrations of Ca, K and P than those from natural populations, while dianthus plants growing on the dump featured considerably higher contents of Mg than plants from Mirów and Kamieniec Wrocławski. The investigation involved the estimation of selected heavy metal concentration (total and soluble forms) in the dump material collected in Sobótka. Chemical analyses proved that Co, Cr, Ni, Mn contents were elevated in comparison to natural concentrations of those metals in the environment. The reaction of soil material subjected to examinations was neutral, slightly acid and acid, which probably affected the increase of the contribution of soluble forms of chemical elements analyzed.

11

The influence of stand structure on European yew Taxus baccata populations in its natural habitats in Central Poland

84%

Dobrowolska D., Niemczyk M., Olszowska G.

Polish Journal of Ecology

|

2017

|

tom 65

|

nr 3

Taxus baccata is a rare species throughout its entire natural range and is often categorized as nationally threatened in countries where it occurs. In Poland yew is under protection and almost all sites with yew occurrences are subject to reserve protection. The aim of the study was to answer the following questions: What is the tree diameter structure of stands in three yew reserves? What is the stand biodiversity of three yew reserves in central Poland? How does the stand species composition influence natural regeneration of yew? What shall be done in the future to protect yew in its natural habitats? The study was conducted in three yew reserves in central Poland. Based on a detailed research on 30 circular sample plots established in each reserve we found high stand diversity in all investigated areas. Shannon-Weiner index (H´) was high in general and ranged from 1.50 to 1.69, and the Shannon's index of evenness (E) ranged from 0.51 to 0.64. The diameter structure of two studied reserves was similar to natural multi-layered stand structure. The number of yew trees and their vitality was low. The species diversity of natural regeneration in all reserves was very high. However, the quantity and quality of yew regeneration in multi-layered diameter structure was significantly lower than in one-layered stand structure. To protect yew, appropriate conservation measures should be undertaken, including silvicultural treatments for in situ species conservation. We found that passive conservation is an inappropriate strategy for yew because of its weak competitiveness ability. We recommend active conservation approach, including silvicultural treatments. i.e. cutting broadleaved trees in places where the basal area is the highest, removing some trees in the upper layer of stand which compete with yews. Individual protection of yew seedlings and saplings is also necessary because of damages caused by herbivores.

12

Assessment of phytoaccumulation of trace elements in medicinal plants from natural habitats

84%

Tomaszewska-Sowa M., Kobierski M., Sawilska A. K., Figas A.

Herba Polonica

|

2018

|

tom 64

|

nr 3

The high concentration of some trace elements in medicinal plants may lowering the value of herbal material, and may cause poisoning effects. The aim of this research was to evaluate the content of trace elements in the organs of: sandy everlasting, yarrow and stinging nettle. In the soil samples, the grain size composition, pH, the content of carbon and nitrogen were determined. In the plant material and for the soil samples, the total contents of Zn, Cu, Mn, Fe, Pb were assayed. The values of the bioconcentration factor and translocation factor were also calculated. The concentration of metals in plant tissues followed in order: Fe>Mn>Zn>Pb>Cu>Hg. The studied species of medicinal plants accumulated mainly Zn, Pb and Hg. It was also shown a high Hg mobility and a low Pb mobility which mainly accumulated in the roots.

13

Habitat preferences of Caucasian rock agama Paralaudakia caucasia (Sauria: Agamidae) in urban and natural habitats in Northeastern Iran

84%

Hosseinian Yousefkhani S. S., Aliabadian M., Zuffi M. A. L.

Polish Journal of Ecology

|

2018

|

tom 66

|

nr 1

In this study, we chose 61 plots along three randomly placed transects in urban and natural areas to examine Paralaudakia caucasia habitat preferences. Ten habitat characteristics found to affect the lizard occurrence were recorded in both habitat types. Based on ANOVA, distance to farmland, height of vegetation cover, percentage of cover of human structures, and slope orientation are significantly different between presence and absence plots. Using Principal Component Analysis, we found that the distance to farmland was the main factor predicted species presence in natural habitats. In urban habitats, the percentage of human structures was more important than other factors in predicting P. caucasia presence. The species is more abundant in regions with a low percentage of human-made structures. Other informative factors for species presence were distance from farmland and distance between refuges for urban and natural populations, respectively. Urban populations of P. caucasia appear to prefer areas outside of the city center, far from human structures, whereas natural populations appear to prefer areas away from villages where they may find higher densities of safe refuges. Isolated rocks in both urban and natural areas have an important role in predicting species presence acting because they act as refuges.

14

Preliminary studies on microfungi from decaying stems of Calamagrostis arundinacea in natural habitats. I. List of species

84%

Chlebicki A.

Polish Botanical Studies

|

1993

|

tom 05

15

Studies upon morphological and biological traits of Festuca rubra, subsp. fallax [Poaceae]

84%

Sawicki B.

Acta Agrobotanica

|

1999

|

tom 52

|

nr 1-2

Observation and ineasurements of some traits of Festuca rubra L. Subsp. Fallax Hack. Ecotypes were made in 1995-1997 using samples selected from natural habitals and collected in Grassland Experimental Station in Sosnowica. High differentation of traits under study and their correlations wre found. Valorized ecotypes are good material for new varieties breeding.

16

The distribution of protected and endangered mammals versus land use, type of habitat and protected areas of Poland: a geographical approach

84%

Grabinska B.

Polish Journal of Ecology

|

2007

|

tom 55

|

nr 3

Analysis was performed of the geographical distribution of 30 endangered and protected Polish mammalian species, as well as the entire assemblage of 91 species occurring in Poland. A comparison of the number of species versus the distribution of the main forms of land use, types of natural habitat and types of nature protection was also made. The study area covered the whole area of Poland with a geographical system of a grid with 280 squares (~ 1250 km2). The species richness was estimated from the recent Polish Red Data Book (of 1992 and 2001) and the “Atlas of Polish Mammals”(Pucek and Raczyński 1983, Pucek 1984). The data collected formed a matrix in which the presence or absence in each of 280 squares (trapeziums) of mammalian species was recorded, along with the number of localities. The number of aerial units with sites for protected and endangered mammals as well as the 91 total mammal species occurring contemporarily in Poland was estimated. The analysis carried out was confined to the species and sites, i.e. those from the 1976–1990 and 1991–2000 censuses. The areas with endangered and protected mammal species are determined partially by habitats of the larger forest complexes, most of which enjoy legal protection. Mammal populations are also related to the areas with high floristic diversity, and are most often connected with forest habitat and the valleys of the greater rivers. The majority of sites housing the highest number of the mammal species investigated are found in the southern, mountainous part of Poland, including the Western and Eastern Carpathians and Sudety Mts., but also in North-East Poland: in Białowieża National Park, Wigry National Park, Narew National Park.

17

Chemical communication in large carnivores: urine-marking frequencies in captive tigers and lions

67%

Barja I., Miguel F. J.

Polish Journal of Ecology

|

2010

|

tom 58

|

nr 2

Environmental and social pressures can result in interspecies differences in marking behaviours. There is a strong relationship between marking behaviour and the environment. Therefore, closely related species that show behavioural differences in the wild may have different scent marking strategies. We conducted a comparative study of the urine-marking behaviours of tigers and lions in captivity (Madrid Zoo, open enclosures of 514 m² and 730 m² respectively, observations of 8 animals for each species). These two closely related species have different natural habitats. We observed interspecific differences in the rates, seasonal variations, and durations of the urine-marking acts. The marking rate was higher in tigers, which also showed seasonal variations not observed in lions. The duration of urine marking was lower in tigers than in lions. These differences seem to correspond to differences between tigers and lions in terms of their natural habitats (forest areas vs open areas), social organizations (solitary vs social), and reproductive biology patterns (seasonal polyoestrous vs annual polyoestrous).

18

Wpływ ekstensywnego wypasu owiec na aktywność enzymatyczną gleb wybranych siedlisk przyrodniczych Natura 2000

67%

Bielinska E. J., Gruszecki T.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2011

|

tom 567

W pracy zbadano wpływ ekstensywnego wypasu rodzimej rasy owiec na aktywność enzymatyczną gleb w rezerwacie przyrody „Kózki”, położonym w granicach parku krajobrazowego „Podlaski Przełom Bugu” w obrębie obszarów Natura 2000. Wprowadzenie ekstensywnego wypasu owiec na teren rezerwatu przyrody „Kózki” wpłynęło na wzrost aktywności badanych enzymów glebowych, niezależnie od typu siedliska. Stwierdzony niekorzystny wpływ wtórnej sukcesji roślin na aktywność enzymatyczną i właściwości chemiczne gleb wskazuje na potrzebę ochrony cennych i rzadkich roślin naczyniowych związanych z siedliskami piaszczystymi. Z przeprowadzonych badań wynika, że wprowadzenie swobodnego wypasu owiec na teren rezerwatu przyrody „Kózki” może przyczynić się do ochrony muraw psammofilnych oraz promocji hodowli owiec rodzimej rasy świniarka.

19

Distribution patterns and habitat preferences of mountain vascular plant species in the Silesian Uplands (Southern Poland)

67%

Nowak T., Urbisz A., Kapusta P., Tokarska-Guzik B.

Polish Journal of Ecology

|

2011

|

tom 59

|

nr 2

The descent of some mountain species into the lowlands is an interesting phenomenon in plant geography and ecology. The main purpose of the present study is to update the list of mountain species for the Silesian Uplands and to provide a synthesis of the knowledge accumulated to date on the habitats for their occurrence, a possible origin and their distribution patterns. In the present study, both the authors’ own records and those obtained by other researchers have been used: published, unpublished and herbarium records, and assembled in a form compatible with the Atlas of distribution of vascular plants in Poland (ATPOL) in the ATPOL– Silesia database). A list of mountain species present in the study region (approximately 4000 km2) is provided in relation to their altitudinal groups. For each species, information about its affiliation to geographical elements and the type of habitats in which it has occurred is recorded. The distribution of mountain species in the Silesian Uplands has been investigated by mapping the species onto a grid of 2 × 2 km squares (1040 in total). For ATPOL squares, containing at least one mountain species (N = 647), CORINE land cover data were obtained and used in explaining the distribution of mountain species composition and richness. In the vascular flora of the Silesian Uplands 76 mountain taxa have been noted, including 2 submontane, 41 montane, 1 subalpine and 32 multizonal species. The list of mountain species has been supplemented with Lonicera nigra and Cirsium erisithales. Many mountain species occurring in the Silesian Uplands have localities distributed throughout the whole region and thus they do not represent any particular type of range. Some species show certain patterns of distribution associated with local habitat conditions. Stands of the montane species are concentrated mainly in the western part of the Silesian Uplands, while the multizonal species are concentrated in the eastern and central part of the study area. Most of the mountain species occur in natural habitats, in particular in broadleaved woodlands, even when they have been degraded. However, some of the species prefer strongly degraded habitats, in particular sand- and clay-pits, quarries and industrial spoils which has been confirmed by multivariate (RDA) analysis. Discussing the possible origin of the mountain species in the Silesian Uplands one can consider migration routes from two directions: from the Sudety Mts. or from the Carpathian Mts. (located approximately 400 km south-west from a study area and 50–100 km south, respectively). Another possible explanation is that the species had a wider range during the glaciations and survived here in refugia.

20

Staphylococcus pseudintermedius, both commensal and pathogen

67%

Chrobak-Chmiel D., Golke A., Dembele K., Cwiek K., Kizerwetter-Swida M., Rzewuska M., Binek M.

Medycyna Weterynaryjna

|

2018

|

tom 74

|

nr 06

Staphylococcus pseudintermedius is considered to be a both commensal and opportunistic canine pathogen. The anal, perineal and nasal locations appear to be the main S. pseudintermedius colonization sites, from which bacteria are transmitted to other body sites, causing secondary infections. When the immune system is compromised because of an underlying condition, the skin becomes susceptible to infection. Thus, the host’s condition seems to play a crucial role in the pathogenesis of S. pseudintermedius infections. There are some predisposing factors, one of which is atopic dermatitis. The pathogenic effects of S. pseudintermedius are mediated by several virulence factors, for instance superantigens, which play an important role by causing dermatitis. The immune system has evolved many different mechanisms to recognize and deal with pathogens, but bacteria have also developed various strategies to evade them. In this review, we focus on early stages of the innate immune response with particular emphasis on the mechanisms of recognition of staphylococci and the action of antimicrobial peptides.

Ograniczanie wyników