Wyniki wyszukiwania

1

Assimilation of aboveground litter carbon versus soil carbon by Collembola and Lumbricidae in spruce forest: a litter replacement experiment

100%

Semenina E. E., Tiunov A. V.

Polish Journal of Ecology

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2020

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tom 68

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nr 2

2

Growth of Vaccinium myrtillus L. [Ericaceae] in spruce forests damaged by air pollution

100%

Kukla J., Kuklova M.

Polish Journal of Ecology

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2008

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tom 56

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nr 1

The growth parameters of the Vaccinium myrtillus shoots were studied on a vertical transect crossing localities “Muraň“ (1080–1110 m a.s.l., skeli-humic podzols, Fageta abietino-piceosa) and “Hliniky“ (950–960 m a.s.l, dystric cambisols, Abieti-Fageta inferiora) in the protected zone of the National park “Slovensky raj“ (Spiš region, East Slovakia). In the localities, both contaminated by air pollution research plots in undamaged and damaged (with lower stand density and canopy compactness) spruce ecosystems were established. The content of Al and Cr was significantly higher in cambisols, and that of Cd – in podzols. The limit values calculated for both soils have been exceeded only in case of mercury. The Al content in bilberry twigs exceeded the background values (by 44–76%) in case of the both plots situated on locality “Muraň”, and that of Ni and Pb concentrations (by 3–60%) only on damaged plot. The mean content of Ni and Pb was significantly higher in bilberry twigs growing on podzols and the mean content of Al was significantly higher in plants on undamaged plots. The mean length, weight as well as energy content of bilberry twigs were significantly higher in damaged spruce plots (on average by 33%), probably due to favourable light conditions.

3

Spruce forests in the Roztoka Valley in the High Tatras

100%

Wojterska M., Wojterski T., Szwed W., Piaszyk M.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

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2004

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tom 69

4

Phytosorption of nutrients in the herb layer of the Sphagno girgensohnii-Piceetum Pol. 1962 community

100%

Kotowska J., Traczyk T.

Polish Ecological Studies

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1995

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tom 21

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nr 2

5

Species distribution models to estimate the deforested area of Picea crassifolia in arid region recently protected: Qilian Mts. National Natural Reserve (China)

84%

Xu Z., Zhao C., Feng Z.

Polish Journal of Ecology

|

2012

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tom 60

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nr 3

The earth is now facing the land degradation due to human disturbance, natural habitats were converted to rural and agricultural areas in order to fulfill the increasing demand of human population. The deforestation of Picea crassifolia (Qinghai spruce) forest at Qilian Mts is an example of such disturbance. P. crassifolia is an ecologically and hydrologically important plant species in the northwestern arid area of China. However, the forests have been intensively and extensively deforested. In order to restore the human-disturbed ecosystems, the spatial distribution of P. crassifolia needs to be delineated. This study employed Genetic Algorithm for Rule-set Prediction model (GARP) and Maximum entropy model (Maxent) and four environmental variables (mean temperature of the warmest quarter, precipitation of the wettest quarter, annual solar radiation, topographic wetness index) to predict the potential distribution of P. crassifolia in Qilian Mts. Genetic Algorithm for Rule-set Prediction model (GARP) produces a model of species niches in geographic space based on heterogeneous rule-sets. Maximum entropy model (Maxent) focuses on fitting a probability distribution for occurrence based on the idea that the best explanation to unknown phenomena will maximize the entropy of the probability distribution, subject to the appropriate constraints. The environmental variables were spatially interpolated throughout the entire study area. We used sensitivity-specificity sum maximum approach to select the threshold value. The projected niche space for the mean temperature of the warmest quarter is between 8.5 and 18.1°C; the space for the precipitation of the wettest quarter is between 149 and 245 mm; the space for annual solar radiation is 118–1100×103 wh m–2 and the space for topographic wetness index is between –0.4 and 5.1. The results show that both GARP and Maxent’s models produce acceptable predictions, but the overall comparison shows that GARP prediction is better than Maxent’s; the comparison between the observed distribution and the predicted distribution suggests that 61% (2869 km2) of P. crassifolia forests have been deforested.

6

The first records of Lordithon bimaculatus (Schrank, 1798) (Coleoptera: Staphylinidae) from Poland

84%

Mazur A., Schulke M.

Fragmenta Faunistica

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2009

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tom 52

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nr 1

The first records of Lordithon bimaculatus (Schrank, 1798) from Poland are presented. Until 2000 this species was not distinguished from Lordithon trinotatus (Er., 1839). It was collected in the Karkonosze Mountains, in the Bialskie Mountains, as well as in the foothills of the Sudety Mountains, in subalpine spruce forests and in colline and montane mixed forests.

7

Spatial separation of terrestrial ciliates and testaceans (Protozoa): a contribution to soil ciliatostasis

84%

Petz W.

Acta Protozoologica

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1988

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tom 27

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nr 3-4

8

Preliminary observations of the beneficial insect fauna on bracken fern Pteridium aquilinum [L.] Kuhn.

84%

Halarewicz A.

Electronic Journal of Polish Agricultural Universities. Series Biology

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2008

|

tom 11

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nr 4

9

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Effects of slow-release fertilizers of Silvamix and Silvagen line on growth of a young spruce and larch forest plantation three years after application

84%

Stofko P.

Folia Forestalia Polonica. Series A . Forestry

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2010

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tom 52

|

nr 1

This work evaluates effects of tablet fertilizers Silvamix, Silvamix Mg and Silvagen on height and diameter growth of a young plantation of Norway spruce [Picea abies (L.) Karst.] and European larch (Larix decidua Mill.) after the third year of fertilizer application. The experiment was conducted on one experimental plot in the Low Tatra Mountains. The fertilizers were applied at a rate five tablets (50 g) per each tree, considering not treated trees as the control. The tablets were laid on the ground and thoroughly trodden into soil. ANOVA analysis did not reveal any significant effects of fertilizers on height and diameter growth of Norway spruce trees. The use of Silvagen resulted in significant effects on height growth of larch trees.

10

Menzbieria chalcographi, a new neogregarine pathogen of the great spruce bark beetle, Dendroctonus micans (Kugelann) (Curculionidae, Scolytinae)

84%

Yaman M., Radek R.

Acta Parasitologica

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2012

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tom 57

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nr 3

This study concerns a new neogregarine parasitic in the great spruce bark beetle Dendroctonus micans (Kugelann) (Curculionidae, Scolytinae). The rate of infection was high, reaching 27.3%. There was no difference in the rate of infection of male and female beetles. The life-cycle stages of the pathogen were described by light and electron microscopy. Each gametocyst of the neogregarine included 8–16 actinocephalid oocysts measuring 11.19 ± 0.42 × 4.99 ± 0.25 μm. The described pathogen has the typical characteristics of members of the genus Menzbieria within the order Neogregarinida and it was identified as Menzbieria chalcographi. This is the first record of an infection of D. micans by M. chalcographi. Possibly, this pathogen could be useful for the biological control of this destructive bark beetle.

11

Co-occurrence patterns of wood-decaying fungi on Picea abies logs: does Fomitopsis pinicola influence the other species?

84%

Pouska V., Svoboda M., Leps J.

Polish Journal of Ecology

|

2013

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tom 61

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nr 1

Dominant fungi, especially primary decayers, probably influence other fungi growing together with them. Fomitopsis pinicola is one of the important primary decayers, and it has been shown that several other species regularly co-occur together with it. We asked whether the presence of common species (especially F. pinicola) affects the species richness and composition of other fungi. This study was conducted in an old-growth mountain spruce forest in the Bohemian Forest, Czech Republic. We surveyed logs on the ground for sporocarps of fungi in three successive years. Characteristics of logs such as dimensions, stage of decay and the cause of tree death (wind, competition, butt rot, bark beetles and unascertained) were recorded. F. pinicola was abundant mostly on logs that originated from trees infested by bark beetles. Analysis of covariance with the volume of logs and decay stage as covariables showed significant effect of these covariables and of F. pinicola presence on species numbers – logs in middle decay stages with the sporocarps of F. pinicola had more species than other logs. Based on Canonical Correspondence Analysis with volume, decay stage and the cause of tree death as covariables, the species composition on logs was also influenced by F. pinicola. We found such statistical effects in several other species. Redlisted species Antrodiella citrinella and Camarops tubulina co-occurred with F. pinicola.

12

Preliminary research on Mesostigmata mites [Acari] from a spruce forest in the Bucegi Massif in Romania

84%

Stanescu M., Gwiazdowicz D. J.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2004

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tom 03

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nr 2

13

Spreading of alien plant species along tourist tracks in Karkonosze Mts.

84%

Wasilowska A.

Polish Journal of Ecology

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1999

|

tom 47

|

nr 4

14

Soil properties and microbial activity changes along spruce forest succession in an abandoned grassland

84%

Gomoryova E., Ujhazy K., Hrivnak R., Strelcova K., Gomory D.

Polish Journal of Ecology

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2007

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tom 55

|

nr 3

The effects of the colonization of an abandoned grassland by forest trees and the associated microenvironmental changes on soil properties and the microbial activity of soil were studied along a 170 m transect established on a former pasture colonized by Norway spruce (Picea abies Karst.) in Central Slovakia. The transect with a 5×5 m grid of sampling points crosses all successional stages from a closed forest to an open grassland, representing 50 years of secondary succession. Changes of basal soil respiration, substrate-induced respiration and soil catalase activity in association with tree density, light and temperature regime were examined, and their relationships with chemical soil properties were documented. Generally, light conditions, tree influence and soil temperatures were highly significantly correlated with the distance from the lower transect edge, but the correlation coefficients were not very high (|r| ranged between 0.37 and 0.70), indicating that the microsite conditions within the transect are strongly heterogeneous. With the advance of colonization, the amount of soil organic matter was found to increase, probably in association with a higher amount and a lower quality of litter. Catalase activity exhibits a linear trend along the transect, which is explained by a lower direct insolation of soils (r = 0.28***) and decreasing temperatures (r = 0.36***) in the upper part. Basal respiration is the lowest in the middle of the transect, where colonizing spruces form a dense closed stand with soil covered by a thick layer of raw litter. Both in the lower part covered by species-rich grassland communities and in the upper part, where forest herb species begin to establish, basal respiration is higher, probably due to higher amounts of easily decomposable plant material. In addition to these transect-wide trends, stationary spatial patterns were observed for most soil variables. Generally, microbial activity rates as well as chemical soil properties exhibited spatial continuity up to the distance of approx. 40 to 60 m.

15

Changes of herb-layer vegetation in mountain spruce forests under the influence of industrial pollution and the forest decline

84%

Wasilowska A.

Polish Journal of Ecology

|

1999

|

tom 47

|

nr 4

16

Dynamika horskych smrecin Pol'any [Slovenske stredohorie]

84%

Krizova E., Ujhazy K.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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1998

|

tom 56

17

Biomass in beech and spruce forests in the Ukrainian Carpathians

84%

Kozak I., Holubets M.

Folia Forestalia Polonica. Series A . Forestry

|

2000

|

tom 42

18

Sireni synantropni flory v okoli komunikaci - monitoring v montannim stupni, management [Krkonossky Narodni Park, Ceska Republika]

84%

Wagnerova Z.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

|

1998

|

tom 56

19

Variability of berry-like of Juniperus communis L. subsp. Communis of West Pomerania

84%

Klimko M., Jankowska A.

Biological Bulletin of Poznań

|

1998

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tom 35

|

nr 2

20

Bilberry [Vaccinium myrtillus L.] as an andicator of environmental state of spruce forests in Karkonosze Mts.

84%

Wasilowska A., Gworek B.

Polish Journal of Ecology

|

1999

|

tom 47

|

nr 4

Ograniczanie wyników

Assimilation of aboveground litter carbon versus soil carbon by Collembola and Lumbricidae in spruce forest: a litter replacement experiment

Growth of Vaccinium myrtillus L. [Ericaceae] in spruce forests damaged by air pollution

Spruce forests in the Roztoka Valley in the High Tatras

Phytosorption of nutrients in the herb layer of the Sphagno girgensohnii-Piceetum Pol. 1962 community

Species distribution models to estimate the deforested area of Picea crassifolia in arid region recently protected: Qilian Mts. National Natural Reserve (China)

The first records of Lordithon bimaculatus (Schrank, 1798) (Coleoptera: Staphylinidae) from Poland

Spatial separation of terrestrial ciliates and testaceans (Protozoa): a contribution to soil ciliatostasis

Preliminary observations of the beneficial insect fauna on bracken fern Pteridium aquilinum [L.] Kuhn.

Effects of slow-release fertilizers of Silvamix and Silvagen line on growth of a young spruce and larch forest plantation three years after application

Menzbieria chalcographi, a new neogregarine pathogen of the great spruce bark beetle, Dendroctonus micans (Kugelann) (Curculionidae, Scolytinae)

Co-occurrence patterns of wood-decaying fungi on Picea abies logs: does Fomitopsis pinicola influence the other species?

Preliminary research on Mesostigmata mites [Acari] from a spruce forest in the Bucegi Massif in Romania

Spreading of alien plant species along tourist tracks in Karkonosze Mts.

Soil properties and microbial activity changes along spruce forest succession in an abandoned grassland

Changes of herb-layer vegetation in mountain spruce forests under the influence of industrial pollution and the forest decline

Dynamika horskych smrecin Pol'any [Slovenske stredohorie]

Biomass in beech and spruce forests in the Ukrainian Carpathians

Sireni synantropni flory v okoli komunikaci - monitoring v montannim stupni, management [Krkonossky Narodni Park, Ceska Republika]

Variability of berry-like of Juniperus communis L. subsp. Communis of West Pomerania

Bilberry [Vaccinium myrtillus L.] as an andicator of environmental state of spruce forests in Karkonosze Mts.