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1

Changes of the sozofloristic value of Opole Province in Southwestern Poland

100%
Nowak A., Nowak S.
Polish Journal of Environmental Studies
|
2004
|
tom 13
|
nr 3
The presented work shows a method of evaluating the changes of territorial sozofloristic value which illustrates the effects of anthropogenic pressure on threatened and rare flora of a given area. As a result, a distribution map of the changes of the flora is shown, aiming to support conservation activities within Opole voivodship, e.g. the flora conservation strategy. The territorial sozofloristic value has been determined in two stages. In the first stage, the species sozofloristic value for a selected group of 302 plant species has been evaluated on the basis of 14 criteria. These were plants considered rare, threatened or protected within the province borders, so-called sozophytes. Then, species sozofloristic values have adequately been summed up on the readily prepared cartogram consisting of 2298 basic squares, thus receiving the territorial distribution of floristic richness of the region. Next, the comparison of the sozofloristic value between two periods, 1806-1944 and 1945-2001 were done. The analysis of characteristic features and reasons of the received distribution has been undertaken, with the particular taking into consideration the territories of the highest changes of the sozofloristic value. The possibilities to use these analyses in regional flora conservation have been presented.
2

Grasses in Poland: invincible, but threatened

86%
Frey L.
Biodiversity: Research and Conservation
|
2010
|
tom 19
3

Report on recent sites of Aldrovanda vesiculosa [ Droseraceae ] in Poland

86%
Kaminski R., Adamec L., Breckpot C.
Fragmenta Floristica et Geobotanica
|
1996
|
tom 41
|
nr 1
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Baeothryon alpinum (L.) T.V. Egorova (Cyperaceae) in the Polish Lowlands: distribution, population decrease and implications for conservation

72%
Pawlikowski P.
Acta Societatis Botanicorum Poloniae
|
2010
|
tom 79
|
nr 3
A total of 47 localities of Baeothryon alpinum, hosting population of more than 100 000 shoots, were recorded in the lowland part of Poland during field surveys in the years 2003-2009. Among them were 25 populations discovered for the first time. Out of 57 sites of the species known from literature and unpublished (including herbarium) sources, 35 were not confirmed during the survey, 27 of them being definitely extinct. B. alpinum shows a clear pattern of distribution in Poland, with three main areas of occurrence: 1) the north-easternmost Poland (Lithuanian Lake District with the adjacent parts of the Masurian Lake District and the upper Biebrza river valley in North Podlasie Lowlands), which is part of the species boreal main range; 2) scattered localities in north-western Poland; 3) mountain mires at higher altitudes in the Sudetes and Tatra mountains and the adjacent part of southern Poland. The main aggregation of localities is found in Augustów Forest (including the Sejny Lakeland and Wigry National Park), and in the Góry Sudawskie region with adjacent areas. The biggest Polish population in the "Kobyla Biel" fen near Augustów consisted of several dozens of thousands of shoots. The Lithuanian Lake District is an area of general importance for the conservation of B. alpinum in Poland. The species is threatened, first of all, due to secondary succession (mires overgrowing with shrubs, trees and reed) and requires conservation measures as well as establishing nature reserves in places where it occurs. The degree that B. alpinum decreases in number is strikingly different in particular regions of Poland - it has lost most of its localities in north-western Poland and in Masurian Lake District, while in the Lithuanian Lake District and the upper Biebrza valley there are minor losses only. Depending on the region (from the west to the east and from the south-west to the north-east), the species should be given extinct or critically endangered (regions of north-western and southern Poland), endangered (Masurian Lake District), vulnerable (North Podlasie Lowlands) and near threatened (Lithuanian lake District) status. Although the disappearance of the populations beyond the species main range is a common phenomenon, the presented pattern is man-related and connected with differences in land management.
5

Variability of morphological traits of the rare plant species Angelica palustris (Apiaceae) in managed and abandoned meadows: effect of mowing

72%
Kostrakiewicz-Gieralt K., Stachurska-Swakon A., Towpasz K.
Polish Journal of Ecology
|
2018
|
tom 66
|
nr 1
The effect of meadow management type on selected population traits of the rare plant Angelica palustris was examined. The study was carried out in a regularly mown meadow (Plot I), an abandoned meadow with medium high plants (Plot II) and an abandoned meadow with high plants (Plot III) situated in southern Poland (Proszowice Plateau). Observations conducted in the years 2010 and 2011 showed greater abundance of A. palustris in Plot I than in Plots II and III. This pointed to the significance of disturbance caused by mowing, which creates gaps in the plant cover and litter layer that become safe sites for A.palustris seedling recruitment and their subsequent growth. In the abandoned meadows a diminishing share of vegetative individuals and a reduction in the number of flowering stems in generative individuals were found. The height of generative stems in the abandoned meadows was higher than in the mown one as a response to the height of neighbouring plants. The number of umbels per stem and number of umbellets per umbel were positively correlated with the height of the stem. In light of our investigations, it can be stated that regular mowing has a beneficial effect on the state of populations of A. palustris. On the other hand, the formation of highly productive generative stems with substantial numbers of inflorescences and infructescences in abandoned meadows may promote successful seed dispersal and an escape from an unfavourable site.
6

Rosliny chronione, zagrozone i rzadkie we florze wojewodztwa slaskiego

72%
Bernacki L., Nowak T., Urbisz A., Urbisz A., Tokarska-Guzik B.
Acta Biologica Silesiana
|
2000
|
tom 35
78-107
7

Ecological and sociological spectrum of Ostericum palustre at new localities in central Poland

58%
Michalska-Hejduk D., Kopec D.
Biodiversity: Research and Conservation
|
2010
|
tom 17
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Low genetic diversity in the endangered population of Viola uliginosa in its locus classicus at Rzaska near Cracow [southern Poland] as revealed by AFLP markers

58%
Cieslak E., Paul W., Ronikier M.
Acta Societatis Botanicorum Poloniae
|
2006
|
tom 75
|
nr 3
245-251
An extremely endangered population of Viola uliginosa Besser at the classical locality of this taxon has been studied. The AFLP analysis was based on 18 specimens of V. uliginosa (about 10% of preserved individuals); additionally, two individuals of V. riviniana were included in the data set as the out group. A high genetical uniformity of the whole population (similarity indexes close to 1) was detected. It was not correlated significantly with the spatial distribution of the plants. The study serves as a basis for practical conservation measures and at the same time as a starting point for a more extensive research on the genetical variability of the species throughout its range.
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

A new locality of weeping alkaligrass Carex secalina (Cyperaceae) in Poland

58%
Dominiak M., Jakubas E.
Steciana
|
2015
|
tom 19
|
nr 1
A rare and protected species of the sedge Carex secalina was recorded in Dulsk near Inowrocław (Kujawy-Pomerania Province) in June 2014. It occupied the shores of ephemeral midfield water reservoirs in the complex of intensively used crop fields. Two subpopulations of this sedge with 36 tussocks in total were found. In the first subpopulation, the tussock diameter reached up to 25 cm, with 12–16 generative shoots per a tussock, while in the second subpopulation, the diameter was up to 10.5 cm, with 2–11 generative shoots. The rapid spread of this halophyte species is probably connected with the presence of permanent soil seed bank. This observation indicates a high potential of Carex secalina to colonise new habitats.
10

Melampyrum cristatum L. - a rare river corridor plant in Wielkopolska and Poland

58%
Stachnowicz W.
Biodiversity: Research and Conservation
|
2013
|
tom 32
Melampyrum cristatum is an extremely rare, native, hemi-parasitic, vascular plant, recently considered to be extinct in Poland. The article presents data concerning new localities of the species recorded in 2007-2012 in the valley of the River Warta (Wielkopolska, Poland). Local distribution of M. cristatum in the Natura 2000 sites: PLH300012 – Rogalińska Dolina Warty (ca. 147.5 sq. km) and PLH300053 – Lasy Żerkowsko-Czeszewskie (ca. 71.6 sq. km), as well as its updated regional (in Wielkopolska) and national (Poland) ranges are shown on maps and interpreted on the background of the geomorphic diversity of occupied habitats. The results suggest that in Poland the species is distributed mainly along valleys of large, lowland rivers, which corresponds with its ‘River Corridor Plant’ status in Central Europe. The species rarity is discussed considering its outline phytocoenological scale (comprising various plant communities within 6 syntaxonomical classes), the riverine distribution pattern and chosen biological features. Natural habitat heterogeneity along with changeable water regime in floodplains, as well as potential limitations of myrmecochoric seed dispersal, may constitute potential reasons for the species low frequency.
11

Orobanche purpurea on its newly discovered site near Zatoń Dolna (NW Poland): the problem of protection of a threatened parasitic plant species

58%
Prajs B.
Biodiversity: Research and Conservation
|
2010
|
tom 17
12

Significance of protection of the meadow and grassland communities for maintenance the floristic diversity in the area of the south-eastern Silesian Upland (Poland)

58%
Babczynska-Sendek B.
Biodiversity: Research and Conservation
|
2009
|
tom 13
13

Seed banking of Polish endangered plants - the FlorNatur Project

58%
Puchalski J., Niemczyk M., Walerowski P., Podyma W., Kapler A.
Biodiversity: Research and Conservation
|
2014
|
tom 34
14

Orchidaceae in the Pieniny Mountains (Western Carpathians)

58%
Frey L.
Biodiversity: Research and Conservation
|
2014
|
tom 35
15

Anagallis foemina (Primulaceae) na Dolnym Śląsku – występowanie i problemy jego identyfikacji

51%
Sliwinski M., Dajdok Z.
Acta Botanica Silesiaca. Supplementum
|
2011
|
tom 01
16

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
|
2010
|
tom 19
17

Walory florystyczne i estetyczne muraw kserotermicznych w okolicy Zamościa

51%
Traba C.
Acta Scientiarum Polonorum. Administratio Locorum
|
2011
|
tom 10
|
nr 2
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