Wyniki wyszukiwania - AGRO

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The helminth fauna of free-ranging European bison, Bison bonasus [L.], studied again 8 years after reduction of bisons, in the Bialowieza Forest

100%

Drozdz J., Demiaszkiewicz A. W., Lachowicz J.

Acta Parasitologica

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1994

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tom 39

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nr 2

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Trace metals in auto- and semihydrogenic soils found in three forest site types of Bialowieza National Park

100%

Gworek B., Degorski M., Brogowski Z.

Polish Journal of Environmental Studies

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1999

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tom 08

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nr 5

The aim of this work was to determine the content of Mn, Zn, Cu, Pb, Cr, Ni and Cd in auto- and semihydrogenic soils of Bialowieza National Park and to find relationships between their occurrence and litho- and pedogenic features of these soils. Basing on geometric mean contents of the elements studied a quantitative series of their occurrence was established as follows: Mn (297) >Zn (29) >Cr (16) >Pb (12) >Ni (10) >Cu (8.0) >Cd (0.29) mg kg-1 d.w The distribution of the above trace elements in soil profiles is linked to the direction of progress of the soil forming processes and, to some extent, to the variability of soil texture (especially in not completely developed soils). In general, the mineral-organic (A) horizons were least abundant in Cr, Ni, Cu, Zn and Cd, followed by the illuvial (Eet) and bedrock (C) horizons of the soils studied. Statistical analysis shown a significant correlation between contents of Cr, Ni and Zn and clay and colloidal particle amounts as well as between the content of Pb and the amount of organic carbon

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Prevalence of zoonotic pathogens in wild rodents living in the Bialowieza Primeval Forest, Poland

86%

Dvoroznakova E., Kolodziej-Sobocinska M., Hurnikova Z., Víchova B., Zub K.

Annals of Parasitology

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2016

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tom 62

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nr Suppl.

4

Effects of wild boar (Sus scrofa L.) rooting on seedling emergence in Bialowieza Forest

86%

Sondej I., Kwiatkowska-Falinska A. J.

Polish Journal of Ecology

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2017

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tom 65

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nr 4

The wild boar is an omnivorous animal, and by foraging (rooting) disturbs the top soil layer. In some regions of Poland and Europe seasonal fluctuations in rooting have been observed. Wild boars not only eat plants, but also strongly modify their habitat. In Białowieża National Park wild boar most frequently visit oak-hornbeam forests on fertile soil. On sites where the forest floor is covered with dense vegetation the germination of seeds is difficult, and wild boar rooting can promote the removal of diaspores from deeper layers of the soil seed bank. Within a 3-year observation on 30 subplots about 10,000 seedlings emerged representing 38 species. Our study revealed that rooted patches are characterised by a very rich and diverse flora of seedlings representing mostly forest species, but their density is low. The dominant species germinating in the disturbed ground vegetation is Urtica dioica, a species forming the persistent soil seed bank. There is a possibility that seedlings of herbaceous plants emerging on permanently rooted patches are of exogenous origin, since the seeds germinating there were in many cases damaged by repeatedly rooting animals and had no chance for further growth and reaching the generative phase. However, the soil seed bank in the rooted area has to be analysed to confirm this theory, that they have exogenous or endogenous origin. Seedling density in a repeatedly rooted oak-hornbeam forest is determined by factors other than those related to rooting. In this context the present study did not demonstrate a negative impact of rooting intensity on seedling emergence.

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A non-soil seed bank dependent on the size of clonal plants: the case of Carex cespitosa, a guerrilla species in an unknown meadow

86%

Borkowska L., Lembicz M., Kasprzykowski Z.

Polish Journal of Ecology

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2017

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tom 65

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nr 2

Long-lived clonal plants provide an optimal place for the natural storage of seeds as a ‘non-soil seed bank’. We tested the hypothesis that the size and species diversity of a non-soil seed bank deposited within the clonal plant Carex cespitosa depends mainly on the plant's size. To verify this hypothesis, an experiment was conducted on an unmown meadow in the Białowieża National Park. The emerging seedlings of different species originating from C. cespitosa tussocks of different size (large and small) were observed under greenhouse conditions for four years. The size of a non-soil seed bank was evaluated based on the number of seedlings. Significant differences in the seedling number were found between large and small sedge tussocks (Mann-Whitney test Z = 3.96, P < 0.001). However, the number of recorded species was independent of tussock size. Both types of tussocks were dominated by meadow, forest and swamp species (in decreasing order). Some of these species are no longer present in the studied area, or their occurrence is limited to small groups at the meadow's edges. A non-soil seed bank within the tussock cores of C. cespitosamay be, similar to a soil seed bank, a tool for studying the changes occurring in plant communities.

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Agrilus bialowiezaensis sp.n. from Poland [Coleoptera: Buprestidae]

86%

Gutowski J. M.

Genus. International Journal of Invertebrate Taxonomy

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1993

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tom 04

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nr 4

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Mites [Acari, Gamasida] occurring in tree-hollows in the Bialowieza National Park

86%

Gwiazdowicz D. J.

Forestry

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1999

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tom 02

8

The birds of the Bialowieza Forest - additional data and summary

86%

Tomialojc L.

Acta Zoologica Cracoviensia

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1995

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tom 38

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nr 3

9

Parasitic Hyphomycetes of the Bialowieza National Park. I.

86%

Mulenko W.

Acta Mycologica

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1994

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tom 29

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nr 1

10

The gamasid mites [Acari, Gamasida] of the Bialowieza National Park

86%

Gwiazdowicz D. J.

Forestry

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2000

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tom 03

11

Changes in morphology of mites [Acari, Gamasida] in the Bialowieza National Park

86%

Gwiazdowicz D. J.

Forestry

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2000

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tom 03

12

Speed and actual distances travelled by radiocollared wolves in Bialowieza Primeval Forest [Poland]

86%

Musiani M., Okarma H., Jedrzejewski W.

Acta Theriologica

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1998

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tom 43

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nr 4

The relationship between the straight line distances (SLD), obtained from telemetry locations, and actual distances travelled by wolves Canis lupus (ADT), measured by snowtracking, was investigated in Białowieża Primeval Forest, E Poland, in winter 1995/96. Radiolocations determined at 15-min time intervals approximated the ADT by wolves reasonably well. If wolves were relocated at 0.5- to 2-h intervals, SLD can be multiplied by a correction factor of 1.3 to obtain ADT. Within the range of SLD from 1 to 10 km, they could also be converted into ADT using a regression equation: ADT = 0.34 + 1.19(SLD), with standard errors of prediction ± 0.13 to ± 0.3 km. The average travelling speed of wolves was 3.78 km/h (SD 1.23, range 1.6-6.1 km). Wolves walking the forest trails, roads and frozen rivers moved significantly faster than in the forest. Also, individuals travelling with other pack members moved faster than those walking singly.

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Craniometrical characteristics of wolves Canis lupus from Poland

86%

Okarma H., Buchalczyk T.

Acta Theriologica

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1993

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tom 38

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nr 3

Skulls of 145 adult wolves Canis lupus Linnaeus, 1758 from two areas of the highest wolf density in Poland (78 from the Carpathian Mountains and 71 from the Białowieża Primeval Forest) were measured using 17 selected characters. Values of cranial characters measured were similar to those of previous studies from mid- dleastern Eurasia. Generally, wolf skulls were larger in the mountain than in the lowland population; males from the Carpathian Mountains were larger than that from the Białowieża Forest, however females were slightly smaller than that in the Białowieża Forest. On both areas males were larger than females, but a difference between sexes was much highly pronounced in wolves from the mountain population.

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Foraging habits and behaviour of moose calves in virgin forests

86%

Kossak S.

Acta Theriologica

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1992

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tom 37

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nr 1-2

Foraging habits of two hand-reared moose Alces alces (Linnaeus, 1758) calves were observed from 22 June to 20 July, 1990. The animals foraged freely while wandering in the Białowieża National Park, Poland. The intensity of foraging was measured by counting the contacts (i.e. bites followed by swallowing of a plant part). Altogether, 4,408 contacts with plants of 42 species were recorded. During the month of observations the number of contacts and the number of species of plants eaten by moose did not increase significantly. There was a positive correlation between the number of contacts and the number of species of plants eaten by moose during a day. Some random choice of forage by the calves, statistically significant (but decreasing with time) quantitative differences in the food preferences between the two moose, behavioural data about strong bonds between moose calves and their mother, and comparison with the development of foraging habits in roe deer fawns formed a basis for the hypothesis that the mimicring of the mother's behaviour is an important mechanism in the development of foraging habits in moose calves.

15

Canopy density in selected forest sites of the Bialowieza National Park's strict reserve and managed stands of the Bialowieza Forest

86%

Robakowski P., Gwiazdowicz D. J.

Forestry

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2000

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tom 03

16

Spider assemblages of hummocks and hollows in a primeval alder carr in the Białowieza National Park – effect of vegetation structure and soil humidity

72%

Stanska M., Stanski T., Gladzka A., Bartos M.

Polish Journal of Ecology

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2016

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tom 64

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nr 4

We studied the species richness, diversity, abundance and guild composition of spider assemblages on the hummocks and in the hollows of the alder carr in the Białowieża National Park. We also assessed the effect of vegetation structure and soil humidity on spiders settled in these two microhabitats. The spiders were collected from 10 May until 27 October 2001 by pitfall trapping. The main factor which differed between the hummocks and the hollows was soil humidity. In the case of vegetation cover we found some differences between the microhabitats but it was particularly evident in the case of litter, which was higher on the hummocks. Spider species diversity was significantly higher on the hummocks than in the hollows, but the number of individuals captured in both microhabitats was similar. The collected spiders belonged to six guilds and the proportion of spider individuals in particular guilds was significantly different between the hummocks and the hollows. The most abundant guild in both microhabitats was ‘ground hunters’ and the most numerous species was Piratula hygrophila. Our analyses showed that soil humidity positively affected the number of spider species and the number of individuals. Sampling date strongly influenced the number of collected species and spider individuals. Vegetation and litter cover did not have a significant impact on the spider assemblages. Our findings suggest that research conducted only on hummocks in the alder carr does not reveal the real structure of spider assemblages.

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Niche dynamics and biodiversity: many rodent species on one marshy meadow

72%

Jancewicz E., Gliwicz J.

Polish Journal of Ecology

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2017

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tom 65

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nr 4

The ecological niche of a species is determined by its tolerance to environmental factors and by interactions with other species, particularly those using the same resource. We assessed spatial niches of four rodent species coexisting in one meadow habitat within the Białowieża Primeval Forest. Niche characteristics were based on the valorisation of the habitat around live-trapping sites visited by rodents during seven years of the study. The population size of each species was monitored and expressed as an average annual density. The root vole Microtus oeconomus was the most numerous and dominant species, with its density widely fluctuating due to the temporal increases of predation pressure exerted by the weasel Mustela nivalis.During the study period, the spatial niche of the root vole was nearly constant, with only significantly increased tolerance towards shrub covered sites at times of its high population density. However, even a slight niche expansion of the highly abundant root voles displaced accompanying species: the bank vole Myodes (Clethrionomys) glareolus, the yellow necked mouse Apodemus flavicollis and the striped field mouse A. agrarius, from their preferred sites and efficiently decreased rodent species diversity in the studied habitat. This study illustrates a possible mechanism of the direct effect of predation on the dominant prey species population and indirect one on the species diversity changes over ecological time.

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18th Congress of European Mycologists Bioblitz 2019 – Naturalists Contribute to the Knowledge of Mycobiota and Lichenobiota of Białowieza Primeval Forest

72%

Gorczak M., Siedlecki I., Blocka Z., Cullen M., Daniele I., Fox H., Harder C., Kinnunen J., Kochanowski M., Krisai-Greilhuber I., Majchrowska M., Meiere D., Oberhofer M., Schigel D., Senn-Irlet B., Wiktorowicz D., Wrzosek M., Pawlowska J.

Acta Mycologica

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2020

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tom 55

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nr 2

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Population dynamics of the lynx [Lynx lynx] in the Bialowieza Primeval Forest revisited: a statistical analysis of density-dependent migration

72%

Kawata Y.

Electronic Journal of Polish Agricultural Universities. Series Biology

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2008

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tom 11

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nr 4

20

Breeding bird community of a primeval temperate (Białowieza National Park, Poland) at the beginning of the 21st century

72%

Wesolowski T., Rowinski P., Mitrus C., Czeszczewik D.

Acta Ornithologica

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2006

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tom 41

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nr 1

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