Wyniki wyszukiwania

1

Nitrogen deposition influences the allelopathic effect of an invasive plant on the reproduction of a native plant: Solidago canadensis versus Pterocypsela laciniata

100%

Wang C., Liu J., Xiao H., Zhou J., Du D.

Polish Journal of Ecology

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2017

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tom 65

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nr 1

This study aims to gain insights into the allelopathic effects (by using leaf extracts) of the notorious invasive Solidago canadensis L. on seed germination of the associated Pterocypsela laciniata (Houtt.) C. Shih under different nitrogen (N) forms added: inorganic (NO3--N and NH4 -N), organic (urea-N), and mixed N (a mixture of the three N forms at 1:1:1 ratio). Among the two used concentrations of S. canadensis leaf extracts the higher exhibited inhibitory allelopathic effects on seedling height and biomass, germination potential, germination index, and vigor index of P. laciniata. N demonstrated positive effects on seed germination of P. laciniata. The effects of mixed and organic N on the seedling biomass of P. laciniata were more pronounced than those of inorganic N and control treatment. The vigor index of P. laciniata under mixed N was significantly higher than those under single N form and control treatment. Thus, organic and mixed N showed higher ecological effects on seed germination of P. laciniata than inorganic and single N form. All N forms could alleviate the inhibitory allelopathic effects of S. canadensis on seed germination of P. laciniata. Overall, the inhibitory allelopathic impact of S. canadensis on seed germination of native species may be attenuated under increased and diverse N deposition, thus it could prevent its further invasion.

2

Attempt to select native flora species suitable for in situ monitoring of environmental genotoxicity

100%

Obidoska G., Sadowska A., Nadulska A.

Annals of Warsaw Agricultural University. Horticulture and Landscape Architecture

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2005

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tom 26

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The economic importance of native cattle species in Hungary

100%

Meszaros K.

Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu

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2011

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tom 13

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nr 6

The concept of hungaricum is connected to keeping of Hungarian native animal species. The traditional and regional foods are the part of Hungarians national inheritance. These foods usually are hand made which can create place of work in the regions with unfavourable circumstances.

4

Factors affecting alien and native plant species richness in temperate nature reserves of Northern China

84%

Zhang X., Wang H., Wang S., Wang R., Wang Y., Liu J.

Polish Journal of Ecology

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2017

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tom 65

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nr 4

Understanding the factors affecting the species richness of alien and native plant is a key issue for predicting the spread of alien species and protecting rare and endangered native species in nature reserves. To investigate the factors affecting alien and native species richness in temperate nature reserves of China, we used a database of 25 nature reserves in Shandong Province of northern China, and studied the relationship of alien and native plant species richness with climatic and anthropogenic factors, as well as area and elevation range. We found that most of the nature reserves in Shandong Province have been invaded by alien plant species. The distribution of alien and native species responds to the same climatic factors, and temperature and precipitation exert strong effects on both groups. Alien and native plant species richness are positively correlated. Human activity is more effective for explaining richness of alien than for native species. Simultaneously, human activity has stronger effects on alien herbaceous than on alien woody plants. Our results suggest that native species richness is mainly explained by climatic factors, whereas alien species richness is mainly explained by climatic factors and human activity together.

5

Modelling of thermal habitat loss of brown trout (Salmo trutta) due to the impact of climate warming

84%

Sedighkia M., Ayoubzadeh S. A., Abdoli A., Ahmadi A.

International Journal of Ecohydrology and Hydrobiology

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2019

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tom 19

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nr 1

6

Definition of the taxonomic structure of native to Poland species of Crataegus L. based on the analysis of leaf and fruit biometrical data

84%

Zaras-Januszkiewicz E.

Annals of Warsaw Agricultural University. Horticulture (Landscape Architecture)

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2004

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tom 25

7

Valuable tree species in forest stands of the Czech Republic - black cherry

84%

Zeidler A.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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2005

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tom 91

471-478

8

Rhythmic development of some native species of blackberries [Rubus L., Corylifolii, Rosaceae] from the collection of Dendrological Garden of University of Life Sciences in Poznan

84%

Kluza-Wieloch M., Maciejewska-Rutkowska I.

Herba Polonica

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2009

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tom 55

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nr 3

38-46

In current study 13 native Rubus species of Corylifolii section, cultivated in the Dendrological Garden of University of Life Sciences in Poznań, were investigated. Phenology and growth rate of vegetative and generative stems of these plants were analyzed. Some habitat factors (temperature and precipitation) were also taken into consideration. The differences in seasonal rhythm of individual taxa were noticed. The life cycles of some species were disturbed. Weather conditions were the most important factors to have an significant influence on seasonal rhythm of Rubus species. In general, in 2008 rainfall deficiency during the vegetation caused flower and fruit disorders and the earlier dye coloration of leaves and leaf-fall. But the drought did not always affect growth rate of generative shoots.

9

Life in sympatry: coexistence of native Eurytemora affinis and invasive Eurytemora carolleeae in the Gulf of Finland (Baltic Sea)

84%

Sukhikh N., Souissi A., Souissi S., Holl A.-C., Schizas N. V., Alekseev V.

Oceanologia

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2019

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tom 61

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nr 2

10

Genetic diversity in Salix gordejevii populations from different environmental gradients in Horqin Sandy Land, Northern China

84%

Huang W.-D., Zhao X.-Y., Zhao X., Luo Y.-Y., Feng J., Su N., He Y.-Z.

Polish Journal of Ecology

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2019

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tom 67

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nr 3

11

Pollen morphological variability of Polish native species of Rosa L. (Rosaceae)

67%

Wronska-Pilarek D., Jagodzinski A. M.

Dendrobiology

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2009

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tom 62

71-82

The variability of pollen grains of 16 species from genus Rosa L. was studied (i.e. Rosa agrestis, R. canina, R. dumalis, R. gallica, R. inodora, R. jundzillii, R. kostrakiewiczii, R. majalis, R. micrantha, R. mollis, R. pendulina, R. rubiginosa, R. sherardii, R. tomentosa, R. villosa, and R. zalana). The material came from 107 native localities of those species in Poland. The measurements are based on at least 30–50 randomly selected mature pollen grains per specimen. In total, 3510 pollen grains were examined. They were analysed for 8 quantitative features, i.e. length of polar axis (P), length of equatorial axis (E), exine thickness on the pole (Exp), exine thickness at the equator plane (Exe), length of ectocolpi (Le), P/E ratio, and relative thickness of exine (Exp/P and Exe/E ratio). Statistically significant differences were found among the examined species with regard to all analysed pollen features. The pollen and ectocolpi dimensions (P, E and Le) were largest in R.gallica (35.9, 28.1, and 28.0 μm, respectively) and smallest in R. majalis (27.0, 20.2, and 21.2 μm, respectively). The mean coefficients of variability of the pollen features measured can be used to arrange the examined rose species from the least to the most variable as follows: R. pendulina, R. villosa, R. jundzillii, R. inodora, R. canina, R. rubiginosa, R. dumalis, R. gallica, R. agrestis , R. micrantha, R. zalana, R. tomentosa, R. sherardii, R. majalis, R. kostrakiewiczii and R. mollis. The obtained data failed to confirm fully both the division of the Rosa genus currently in force in taxonomy into sections as well as relationships among the examined species from the Caninae section. In addition, values of morphological characters of the same species may differ considerably from one another. The extent of these differences indicated that it was necessary to measure large numbers of pollen grains in order to obtain accurate biometric data.

12

Growth and nutrition of restored Quercus castaneifolia C.A. Mey. versus native Celtis australis L. tree species: conservation perspectives of Hyrcanian forest (Iran)

67%

Hosseini S. M., Raouhi-Moghaddam E., Ebrahimi E., Rahmani A., Tabari M.

Polish Journal of Ecology

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2010

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tom 58

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nr 1

For native species, mixed plantation systems seem to be the most appropriate for providing a broader range of options such as production, protection, biodiversity conservation and restoration. After 11 years, growth and nutrition and soil properties were examined in young plantation of two indigenous tree species in Hyrcanian forests of Iran. Quercus castaneifolia C.A. Mey. (as target species) and Celtis australis L. (as native component species) were planted in five proportions (100Q, 70Q:30C, 60Q:40C, 50Q:50C, 40Q:60C) in Noor, Iran. Diameter at breast height of individual Quercus trees and total basal area were affected by the presence of Celtis. Percent retranslocation of nutrients in Quercus followed in order: K> P> N. Leaf-litter fall production ranged from 4.10 to 6.14 t ha⁻¹ year⁻¹. Ca and Mg concentrations in fully expanded leaves of Quercus, N and K retranslocation of Quercus, concentration of available P in soil were higher in some of the mixed plantations than in monoculture of Quercus. On the other hand, N concentration in fully expanded leaves of Quercus, N fluxes and soil C/N ratio were higher in monoculture of Quercus. Within the framework of this experiment, it appeared that production was maximized when these two species were grown together in the proportion of 60% Quercus and 40% Celtis.

13

Rare and threatened vascular plants of the railways in Slovakia

67%

Majekova J., Letz D. R., Slezak M., Zaliberova M., Hrivnak R.

Biodiversity: Research and Conservation

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2014

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tom 35

14

Segetal flora of the Lukow Plain

67%

Rzymowska Z., Skrajna T.

Acta Agrobotanica

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2011

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tom 64

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nr 2

The aim of the study was to characterize and analyze the segetal flora of the Łuków Plain. The study was carried out from 2003 to 2006 in 182 towns and villages. Vascular flora of the arable fields in the area under study consists of 305 species belonging to 39 families and 168 genera. The analysed flora is characterised by the prevalence of native species (64.6%) over alien species (35.4%). Archaeophytes dominate among anthropophytes, whereas meadow species are the most frequent in the group of apophytes. Annuals and biennials show a slight prevalence over perennials. The analysis of the life-form categories shows the dominance of therophytes (52.8%) as well as a relatively high share of hemicryptophytes (34.4%) and geophytes (12.5%). In the analysed flora, rare and very rare species constitute a vast majority (61.7%), whereas the common and very common species reach 13.1%.

15

Four pathogens found associated with Eriocheir sinensis H. Milne-Edwards, 1853 (Crustacea: Brachyura: Grapsidae) from Lake Dabie (Poland)

67%

Sobecka E., Hajek G. J., Skorupinski L.

Oceanological and Hydrobiological Studies

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2011

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tom 40

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nr 1

16

Polymorphism of the rDNA chromosomal regions in the weatherfish Misgurnus fossilis (Teleostei: Cobitidae)

67%

Spoz A., Boron A., Ocalewicz K., Kirtiklis L.

Folia Biologica

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2017

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tom 65

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nr 1

17

Differences in chemical composition of needle and leaf litter from exotic and native tree species stands

67%

Skorupski M., Jagodzinski A. M., Zytkowiak R., Karolewski P.

Dendrobiology

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2012

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tom 68

The potential differentiations in litter chemistry among native and non-native trees are poorly understood. We compared the chemical composition of leaf litterfall of 11 exotic tree species, e.g. coniferous: Abies cephalonica, A. grandis, A. procera, Chamaecyparis pisifera, Pinus peuce, Pseudotsuga menziesii, Thuja plicata, and deciduous: Acer rubrum, A. saccharum, Betula alleghaniensis and Quercus rubra, with that of a native European conifer, Pinus sylvestris (as reference to coniferous species) anda mixture of native European Quercus robur, Carpinus betulus, Tilia cordata, T. platyphyllos and Corylus avellana leaves (as a reference mixture of deciduous species). We found significant differences among the species studied in nitrogen and carbon content in needles/leaves, C/N ratio, as well as total soluble phenolic compounds (TPh) and total nonstructural carbohydrates (TNC) content, including soluble carbohydrates and starch. However, we found no clear differentiation of exotic from native tree species in the analyzed elements and metabolites. Among the exotic coniferous tree species, P. menziesii stood out among the species studied – fallen needles of this species were characterized by relatively high TPh and TNC content. The relationships between TPh and TNC content in leaf and needle litter among tree species were similar among two consecutive years. For deciduous tree species, the tendency of higher TPh content and C/N ratio in leaves falling earlier (September; leaves of sun-type) than later (November; leaves of shade-type) was more distinct than in coniferous tree species. Generally, we cannot see any special differences in the levels or mutual quantitative relationships of the chemical compounds studied in fallen needles/leaves of exotic tree species in comparison with native tree species.

18

Native or alien status of a rare plant species outside the limits of its uniform geographic range: distribution of Virga pilosa (L.) Hill in Wielkopolska, Poland and CE Europe

67%

Stachnowicz W., Rakowski W.

Biodiversity: Research and Conservation

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2013

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tom 29

19

Native greenery participation in chosen court parks of North Mazowsze dendroflora formation

67%

Zaras-Januszkiewicz E., Wasniewska M.

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

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2009

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tom 30

20

Infiltration rates and processes under the presence and absence of Lumbricus terrestris

67%

Willoughby G. L., Kladivko E. J., Graveel J. G.

Bibliotheca Fragmenta Agronomica

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1997

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tom 2B

Ograniczanie wyników

Nitrogen deposition influences the allelopathic effect of an invasive plant on the reproduction of a native plant: Solidago canadensis versus Pterocypsela laciniata

Attempt to select native flora species suitable for in situ monitoring of environmental genotoxicity

The economic importance of native cattle species in Hungary

Factors affecting alien and native plant species richness in temperate nature reserves of Northern China

Modelling of thermal habitat loss of brown trout (Salmo trutta) due to the impact of climate warming

Definition of the taxonomic structure of native to Poland species of Crataegus L. based on the analysis of leaf and fruit biometrical data

Valuable tree species in forest stands of the Czech Republic - black cherry

Rhythmic development of some native species of blackberries [Rubus L., Corylifolii, Rosaceae] from the collection of Dendrological Garden of University of Life Sciences in Poznan

Life in sympatry: coexistence of native Eurytemora affinis and invasive Eurytemora carolleeae in the Gulf of Finland (Baltic Sea)

Genetic diversity in Salix gordejevii populations from different environmental gradients in Horqin Sandy Land, Northern China

Pollen morphological variability of Polish native species of Rosa L. (Rosaceae)

Growth and nutrition of restored Quercus castaneifolia C.A. Mey. versus native Celtis australis L. tree species: conservation perspectives of Hyrcanian forest (Iran)

Rare and threatened vascular plants of the railways in Slovakia

Segetal flora of the Lukow Plain

Four pathogens found associated with Eriocheir sinensis H. Milne-Edwards, 1853 (Crustacea: Brachyura: Grapsidae) from Lake Dabie (Poland)

Polymorphism of the rDNA chromosomal regions in the weatherfish Misgurnus fossilis (Teleostei: Cobitidae)

Differences in chemical composition of needle and leaf litter from exotic and native tree species stands

Native or alien status of a rare plant species outside the limits of its uniform geographic range: distribution of Virga pilosa (L.) Hill in Wielkopolska, Poland and CE Europe

Native greenery participation in chosen court parks of North Mazowsze dendroflora formation

Infiltration rates and processes under the presence and absence of Lumbricus terrestris