Wyniki wyszukiwania

1

Occurrence of rare and protected plant species related to species richness in calcareous xerothermic grassland

100%

Baranska K., Zmihorski M.

Polish Journal of Ecology

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2008

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tom 56

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nr 2

343-350

Occurrence of rare and protected plant species is regarded as a strong argument for creating a protected area. It is therefore especially important to know whether rare and protected species are reliable indicators of abundance of other, more common, unprotected species. We analysed co-occurrence of protected and rare species with other xerothermic plant species in calcareous xeric grassland in Western Poland. In the years 2005–2006, on 62 plots (25 m² each) we identified vascular plants on a 60 km² area in the Odra R. Valley and its smaller tributaries valleys. Legally protected species appeared not to be better indicators of xerothermic species richness than non-protected species. The rarest species (Anthericum liliago L., Carex supina Willd. ex Wahlenb. and Stipa borysthenica Klokov ex Prok.) were significantly less useful indicators of xerothermic species richness than other rare and common species. These results let us conclude that designing a network of protected areas on the basis of rare and protected species may result that some common species, biodiversity hotspots or well developed phytocenoses will be ignored.

2

The herb layer diversity and the occurrence of rare and protected vascular plant species in the pine forest Leucobryo-Pinetum in the Olkusz Upland

100%

Sliwinska-Wyrzychowska A., Cabala S., Chmura D.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

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2004

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tom 69

3

Natural and anthropogenic coniferous forest communities of the Wapienica Valley and their role in maintaining populations of protected and rare plants

100%

Orczewska A.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

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2004

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tom 69

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Propagation of endemic and endangered Sternbergia lutea with a high ornamental value by bulb chipping and plant growth regulators

80%

Nazari F.

Acta Scientiarum Polonorum. Hortorum Cultus

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2019

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tom 18

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nr 2

Autumn daffodil (Sternbergia lutea) is a rare and endangered bulbous plant with yellow flowers grown naturally in Iran and unfortunately for different reasons this plant is at the risk of eradication. Natural multiplication rate of S. lutea is low, thus propagation by chipping method is one inexpensive and simple way to overcome this problem. This research was therefore performed to investigate the propagation method in two experiments. In the first experiment, the effects of some plant growth regulators (PGRs) on induction and regeneration of bulblets from bulb chips (propagules) were evaluated. The propagules were prepared by chipping method and treated with indole butyric acid (IBA), gibberellic acid (GA3), benzyl adenine (BA), kinetin (Kin) and cycocel (CCC) at 100 and 200 mg L–1 concentrations for 2 h and then incubated for two months at 20 ±1°C. At the end of incubation, the results showed the highest percentage of concurrent bulblet + root regeneration (CBRR), number and fresh weight of bulblets related to 100 mg L–1 GA3. The highest percentage of only bulblet regeneration (OBR), only root regeneration (ORR) and non-regeneration were obtained at 200 mg L–1 IBA, 100 mg L–1 Kin and control (distillated water: DW) treatments, respectively. In the second experiment, the bulblets that had rooted from each treatment of the first experiment were planted and the produced bulbs were compared. The results indicated that the highest percentage of bulblet sprouting, bulb number and diameter were found at 100 mg L–1 GA3. Therefore, the application of GA3 with mentioned concentration is appropriate for vegetative propagation of this plant by bulb chipping.

5

Assessment of habitat conditions using Self-Organizing Feature Maps for reintroduction/introduction of Aldrovanda vesiculosa L. in Poland

80%

Kosiba P., Mroz L., Kaminski R.

Acta Societatis Botanicorum Poloniae

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2011

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tom 80

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nr 2

The study objects were Aldrovanda vesiculosa L., an endangered species and fifty five water sites in Poland. The aim of the present work was to test the Self-Organizing Feature Map in order to examine and predict water properties and type of trophicity for restoration of the rare plant. Descriptive statistical parameters have been calculated, analysis of variance and cluster analysis were carried out and SOFM model has been constructed for analysed sites. The results of SOFM model and cluster analysis were compared. The study revealed that the ordination of individuals and groups of neurons in topological map of sites are similar in relation to dendrogram of cluster analysis, but not identical. The constructed SOFM model is related with significantly different contents of chemical water properties and type of trophicity. It appeared that sites with A. vesiculosa are predominantly distrophic and eutrophic waters shifted to distrophicity. The elevated model showed the sites with chemical properties favourable for restoration the species. Determined was the range of ecological tolerance of the species in relation to habitat conditions as stenotopic or relatively stenotopic in respect of the earlier accepted eutrophic status. The SOFM appeared to be a useful technique for ordination of ecological data and provides a novel framework for the discovery and forecasting of ecosystem properties constituting a validation of the SOFM method in this type of studies.

6

High genetic diversity in the naturally rare plant Taihangia rupestris Yu et Li (Rosaceae) dwelling only cliff faces

80%

Tang M., Yu F.-H., Jin X.-B., Ge S.

Polish Journal of Ecology

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2010

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tom 58

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nr 2

Cliffs are the primary habitat of many rare and endangered plant species, but few studies have investigated the genetic diversity of these species. Taihangia rupestris Yu et Li (Rosaceae) is the only species of the genus Taihangia, which occurs exclusively in small crevices on the faces of north-facing vertical cliffs at altitudes ranging from 600 to 1500 m above sea level. It is a perennial herb endemic to the southern part of the Taihang Mountains in northern China. We sampled fresh leaves from 11 to 38 individuals of T. rupestris in each of eight cliff-face populations located in the provinces of Hebei, Shanxi and Henan in China. The leaves were dried by silica gel and DNA was extracted. We then assessed the genetic variability within and among the eight populations of T. rupestris using random amplified polymorphic DNA (RAPD). Within the 150 plants sampled, 81.2% of the 117 RAPD markers detected were polymorphic, and Nei’s diversity (H) was on average 0.21 in the eight populations and 0.28 in the species as a whole. The grouping of the eight populations by clustering analysis agreed with their pattern of geographical distribution and with the separation of the species into two varieties (T. rupestris var. ciliata and T. rupestris var. rupestris). Genetic distances (Φst) were significantly correlated with geographic distances. Although significant genetic differentiation existed between groups (varieties) and among populations, a high proportion (65.4%) of the total genetic variation was maintained within populations. Therefore, high genetic diversity is preserved in the cliffdwelling populations, and in situ protection of T. rupestris should focus on the protection of the habitat of both varieties, which may be of particular importance for the long-term survival of this species.

7

Soil environment of Pulsatilla vernalis (L.) Mill. at selected sites in the Polish lowland

80%

Grzyl A., Niewiadomski A., Woziwoda B.

Acta Societatis Botanicorum Poloniae

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2013

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tom 82

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nr 4

The paper presents soil conditions of Pulsatilla vernalis in the Polish lowland. There were determined species preferences in relation to physical and chemical properties, grain size composition and the type of soil. It has been found that P. vernalis prefers very poor sandy, acid, dry and permeable soils, with small water capacity. The range of habitat parameters at the lowland sites differs, however, from the conditions at the mountain sites. Due to specific habitats of the species, new ecological indicator values were proposed for the lowland sites of P. vernalis. The results of soil analysis presented in this paper, as well as other data related to biology of the species, should be accounted for in the active protection plan, including the processes of reintroduction and introduction of the species.

8

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

80%

Cieslak E., Paul W., Ronikier M.

Acta Societatis Botanicorum Poloniae

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2006

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tom 75

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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

Inwentaryzacja stanowisk gatunkow rzadkich i ginacych w Polsce polnocno-wschodniej

80%

Werblan-Jakubiec H., Bielska T., Kirpluk I., Walczak M.

Prace Ogrodu Botanicznego Polskiej Akademii Nauk

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1992

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tom 02

55-81

10

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

80%

Stachnowicz W.

Biodiversity: Research and Conservation

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2013

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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

The anthropogenic mire communities of the Silesian Upland [S Poland]: a case of selected exploitation hollows

80%

Chmura D., Molenda T.

Nature Conservation

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2007

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tom 64

57-63

12

Flood protection in highly valuable river ecosystems - middle delta system of the Nida River

80%

Struzynski A.

Electronic Journal of Polish Agricultural Universities. Series Environmental Development

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2011

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tom 14

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nr 2

13

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

80%

Stachnowicz W., Rakowski W.

Biodiversity: Research and Conservation

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2013

|

tom 29

14

Ecological and experimental studies on the copper mosses: Mielichhoferia elongata [Bryaceae and Scopelophila cataractae [Pottiaceae]]

80%

Shaw A. J., Owens H.

Fragmenta Floristica et Geobotanica

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1995

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tom 40

|

nr 1

15

Rare plant species of the Khabarovsk territory and their protection

80%

Sapozhnikova T. G.

Fragmenta Floristica et Geobotanica

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1996

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tom 41

|

nr 1

16

Changes in the population size of some rare species in landscape parks of the Bug River valley

80%

Ciosek M. T., Piorek K.

Acta Scientiarum Polonorum. Biologia

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2005

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tom 04

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nr 1-2

17

Rośliny interesujące i chronione w projektowanym Boreckim Parku Krajobrazowym

51%

Endler Z.

Acta Academiae Agriculturae ac Technicae Olstenensis. Agricultura

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1992

|

tom 54

3-14

W pracy przedstawiono syntetyczny przegląd roślin naczyniowych prawnie chronionych oraz rzadkich i interesujących z punktu widzenia naukowego i biogeograficznego, zanotowanych na obszarze projektowanego Boreckiego Parku Krajobrazowego.

Ograniczanie wyników

Occurrence of rare and protected plant species related to species richness in calcareous xerothermic grassland

The herb layer diversity and the occurrence of rare and protected vascular plant species in the pine forest Leucobryo-Pinetum in the Olkusz Upland

Natural and anthropogenic coniferous forest communities of the Wapienica Valley and their role in maintaining populations of protected and rare plants

Propagation of endemic and endangered Sternbergia lutea with a high ornamental value by bulb chipping and plant growth regulators

Assessment of habitat conditions using Self-Organizing Feature Maps for reintroduction/introduction of Aldrovanda vesiculosa L. in Poland

High genetic diversity in the naturally rare plant Taihangia rupestris Yu et Li (Rosaceae) dwelling only cliff faces

Soil environment of Pulsatilla vernalis (L.) Mill. at selected sites in the Polish lowland

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

Inwentaryzacja stanowisk gatunkow rzadkich i ginacych w Polsce polnocno-wschodniej

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

The anthropogenic mire communities of the Silesian Upland [S Poland]: a case of selected exploitation hollows

Flood protection in highly valuable river ecosystems - middle delta system of the Nida River

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

Ecological and experimental studies on the copper mosses: Mielichhoferia elongata [Bryaceae and Scopelophila cataractae [Pottiaceae]]

Rare plant species of the Khabarovsk territory and their protection

Changes in the population size of some rare species in landscape parks of the Bug River valley

Rośliny interesujące i chronione w projektowanym Boreckim Parku Krajobrazowym