Wyniki wyszukiwania

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Spread of Veronica filiformis (Scrophulariaceae) in the Sudetes

100%

Pielech R., Zajac K., Malicki M.

Biodiversity: Research and Conservation

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2012

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tom 28

2

Habitat preferences of some neophytes, with a reference to habitat disturbances

86%

Mysliwy M.

Polish Journal of Ecology

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2014

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tom 62

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nr 3

The spread of species far from their native range is an important component of global changes. Investigating the ability of alien plants to invade different habitats is one of the most important approaches in the analysis of biological invasion mechanisms. The study was based on floristic research carried out in 1998–2002 in the north-western part of Poland. The habitats sampled were classified according to the EUNIS classification. A dataset of 2638 naturalized neophyte records was compiled based on a total of 2132 floristic lists. Species entries were supplemented with data on taxonomic position (family), origin, frequency, life form and number of habitats a particular species colonises. Ordination analyses showed the level of disturbance in individual habitats to be important in species-habitats relationships. Some of the species (e.g. Chamomilla suaveolens, Galinsoga parviflora, Veronica persica) occurred mainly in man-made, heavily disturbed habitats, while others (e.g. Impatiens parviflora, Padus serotina, Quercus rubra) were present primarily in natural habitats, less affected by humans. The species with the broadest habitat ranges identified included, i.a. Conyza canadensis, Impatiens parviflora, Epilobium ciliatum, and Oxalis fontana. Most of them, however, had different “core” habitats. Some species, e.g. Juncus tenuis, Elodea canadensis, Veronica persica were associated with one or a few habitats. The ability of species to invade numerous habitat types did not depend on their invasive status. The most successful aliens are those which spread dynamically along forest paths as well as those penetrating forest communities. The phytocoenotic role of each naturalized neophyte in plant communities requires a detailed study. Each individual habitat supports well-established alien species whose traits fit its characteristics and the disturbance intensity. Analysis of alien species traits, local distribution, habitat preferences and range makes it possible to reliably assess potentially successful invaders.

3

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Central European botanic gardens as centres of dispersal of alien plants

86%

Galera H., Sudnik-Wojcikowska B.

Acta Societatis Botanicorum Poloniae

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2010

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tom 79

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nr 2

147-156

The aim of the work was to estimate the specific role that Central European botanic gardens play in the dispersal of alien plants, which results from the wide variety of plants cultivated in the gardens and regular international exchange of plant material between these institutions. We compared the results of recent field studies (in eight Polish botanic gardens) and a review of older literature data and herbarium collections (from Central European botanic gardens). We found that in Poland the proportion of botanic garden escapes was lower (3%) than would be expected from the "tens rule". Botanic gardens have played a considerable role in the development of the synanthropic flora of Central Europe in the last 200 years. We determined a group of species introduced through a network of botanic gardens and propose 5 theoretical patterns to describe the mode and pathways of the early stages of introduction of these species.

4

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

72%

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

Diversity and environmental variability of riparian tall herb fringe communities of the order Convolvuletalia sepium in Polish river valleys

72%

Mysliwy M.

Monographiae Botanicae

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2019

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tom 108

6

Alien plants of the Podilski Tovtry National Nature Park (Ukraine)

72%

Lyubinska L. G.

Biodiversity: Research and Conservation

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2009

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tom 15

7

Prunus virginiana L. (Rosaceae) on synanthropic sites in Poland

72%

Danielewicz W., Wiatrowska B.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2013

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tom 12

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nr 4

Black cherry (Prunus serotina Ehrh.) belongs to quite common and the best known invasive woody plants of alien origin occurring in central Europe. On the other hand, little is known about the degree of settling of another North American representative of the Prunus genus from the Padus subgenus – the chokecherry (P. virginiana L.). A considerable morphological similarity of the above-mentioned taxon to P. padus L. is a cause of fairly significant problems associated with its identification. It is not easy to distinguish these related indigenous species, common in forests, as well as in mesophilous thickets in the area of entire Europe. That is why P. virginiana is usually unnoticed and, consequently, it is overlooked in floristic studies. On the basis of the data derived from a variety of sources, mostly collected by the authors in the course of their field trips, supplemented with information from literature, as well as unpublished notes obtained from different persons, information concerning the distribution of secondary P. virginiana sites in Poland is summed up. The article presents a list of 28 such sites together with a map on which their locations have been marked. The discussed species was observed most frequently in the forest environment on eutrophic as well as mesotrophic broad-leaved forest sites in shrub thicket areas at the edge of dense forests. It was also found in broad-leaved and pine coniferous forest underbrush as well as in mid-field thickets. It was established that in Poland, it was not only fully settled in on semi-natural sites but it also encroached upon forest phytocoenoses of natural character. In order to draw attention to possibilities of P. virginiana occurrence in other, hitherto unrecognised synanthropic sites, some remarks and observations concerning morphological features and phenological properties of this taxon in field conditions were included.

8

Natural regeneration of alien trees and shrubs at Rogow Arboretum od Warsaw University of Life Sciences

72%

Banaszczak P., Tumilowicz J.

Rocznik Polskiego Towarzystwa Dendrologicznego

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2009

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tom 57

The list of 46 self-sowing alien woody plant taxa in Rogów Arboretum is presented, which is an expantion of the list from 1992 when the first article on spontaneous regeneration of alien tree and shrub taxa in the Arboretum was published. Most of species described are rather infrequently found in Polish collections and are known to produce self-seedlings not capable of sexual reproduction, however Abies grandis can be included into group of plants that could produce seedlings capable of sexual reproduction.

9

Methodical problems in distinguishing the group of archaeophytes

72%

Zajac A., Zajac M.

Acta Botanica Silesiaca

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2011

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tom 06

The paper discusses the methodical problems encountered when making up the list of archaeophytes appearing in Poland. The updated list of archaeophytes (Tab.1) including data on their appearance in archaeological excavations according to the Archaeobotanical Data Base (Lityńska-Zając unpublished) has been attached as one of the principal parts of the paper.

10

Echinochloa esculenta [Poaceae] - a new alien plant in Poland

72%

Pacyna A., Guzik J.

Fragmenta Floristica et Geobotanica

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1997

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tom 42

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nr 2

11

Extinct and endangered archaeophytes and the dynamics of their diversity in Poland

58%

Zajac M., Zajac A., Tokarska-Guzik B.

Biodiversity: Research and Conservation

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2009

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tom 13

12

The transformer species of the Ukrainian Polissya

58%

Protopopova V. V., Shevera M. V., Orlov O. O., Panchenko S. M.

Biodiversity: Research and Conservation

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2015

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tom 39

13

Allergenic invasive plant Ambrosia artemisiifolia L. in Poland: threat and selected aspects of biology

58%

Tokarska-Guzik B., Bzdega K., Koszela K., Zabinska I., Krzus B., Sajan M., Sendek A.

Biodiversity: Research and Conservation

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2011

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tom 21

14

Effect of climate variability on Quercus rubra phenotype and spread in Lithuanian forests

58%

Straigyte L., Zalkauskas R.

Dendrobiology

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2012

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tom 67

This study investigates the effect of climate variability on the phenotype, leaf litter decomposition intensity and seedling spread of alien red oak (Quercus rubra L.). Twenty-eight red oak forest stands located in Lithuania were evaluated. Indirect climate change indicators such as continentality were used in the analysis. Simulation of climate warming was achieved using an agro sheet cover. According to the results, the morphological traits of red oak stems in the maritime regions (warmer winters) do not differ significantly from those of red oaks stems in the continental areas of Lithuania (colder winters, more frequent spring frosts). Red oak leaf litter under an agro sheet cover (warmer conditions) decomposes at almost the same intensity as without the cover (natural conditions). The red oak seedlings spread 100 m or more irrespective of continentality. These results showed indirectly that climate change will not affect red oak stem quality or microorganism activity in the process of leaf litter decomposition. Red oak will thus remain as an invasive species, threatening composition change in native forests.

15

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

58%

Stachnowicz W., Rakowski W.

Biodiversity: Research and Conservation

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2013

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tom 29

16

Analysis and distributional patterns of the invasive flora in a protected mountain area - a case study of Medvednica Nature Park (Croatia)

58%

Vukovic N., Bernardic A., Nikolic T., Hrsak V., Plazibat M., Jelaska S. D.

Acta Societatis Botanicorum Poloniae

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2010

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tom 79

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nr 4

In this paper we have analysed invasive flora of Medvednica Nature Park, Croatia with respect to their origins, life forms, systematic positions, types of seed dispersal, Ellenberg indicator values and spatial distributions using MTB 1/64 grid units for analyses. A total of 27 invasive plant species, belonging to 14 families, were recorded with Asteraceae being the most frequently occurring family. Therophytes were the most common life form, as is generally true of Croatian invasive plants; however, hemicryptophytes and geophytes were more frequent in Medvednica. Here, invasive plants originated mainly from both Americas with slightly lower portion in comparison to all Croatian invasive plants, while contrary was the case when comparing those originated from Asia. The most widespread species was Erigeron annuus (L.) Pers., and the species with the lowest occurrence were Chamomilla suaveolens (Pursh.) Rydb and Datura innoxia Mill. A multiple regression model explains 44% of the spatial variability in the invasive plants data per MTB 1/64 unit, using the number of all recorded plant species, the average elevation and the lengths of paths and roads as estimators. The latter two variables also had the most influence on the ordination axes in analyses of the spatial distribution of seed dispersal types present in each MTB 1/64 unit. Anemochory was the most frequent type of seed dispersal.

17

Alien vascular plants in the Silesian Upland of Poland: distribution, patterns, impacts and threats

51%

Tokarska-Guzik B., Wegrzynek B., Urbisz A., Urbisz A., Nowak T., Bzdega K.

Biodiversity: Research and Conservation

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2010

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tom 19

18

Invasive alien plant species of the southern part of the Nowogard Plain (NW Poland)

44%

Konopska K.

Biodiversity: Research and Conservation

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2011

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tom 21

Ograniczanie wyników

Spread of Veronica filiformis (Scrophulariaceae) in the Sudetes

Habitat preferences of some neophytes, with a reference to habitat disturbances

Central European botanic gardens as centres of dispersal of alien plants

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

Diversity and environmental variability of riparian tall herb fringe communities of the order Convolvuletalia sepium in Polish river valleys

Alien plants of the Podilski Tovtry National Nature Park (Ukraine)

Prunus virginiana L. (Rosaceae) on synanthropic sites in Poland

Natural regeneration of alien trees and shrubs at Rogow Arboretum od Warsaw University of Life Sciences

Methodical problems in distinguishing the group of archaeophytes

Echinochloa esculenta [Poaceae] - a new alien plant in Poland

Extinct and endangered archaeophytes and the dynamics of their diversity in Poland

The transformer species of the Ukrainian Polissya

Allergenic invasive plant Ambrosia artemisiifolia L. in Poland: threat and selected aspects of biology

Effect of climate variability on Quercus rubra phenotype and spread in Lithuanian forests

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

Analysis and distributional patterns of the invasive flora in a protected mountain area - a case study of Medvednica Nature Park (Croatia)

Alien vascular plants in the Silesian Upland of Poland: distribution, patterns, impacts and threats

Invasive alien plant species of the southern part of the Nowogard Plain (NW Poland)