Wyniki wyszukiwania

1

Vaucheria species from selected regions in Poland

100%

Zelazna-Wieczorek J.

Acta Societatis Botanicorum Poloniae

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2002

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tom 71

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nr 2

2

The lichen collection from Opole Silesia [Poland] housed in the Wroclaw University Herbarium

100%

Lesnianski G.

Fragmenta Floristica et Geobotanica

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1999

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tom 44

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nr 1

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Rare and threatened pondweed communities in anthropogenic water bodies of Opole Silesia [SW Poland]

84%

Nowak A., Nowak S., Czerniawska-Kusza I.

Acta Societatis Botanicorum Poloniae

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2007

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tom 76

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nr 2

The paper presents results of geobotanic studies conducted in anthropogenic water bodies like excavation ponds, fish culture ponds, other ponds, dam reservoirs, ditches, channels and recreational pools incl. watering places in Opole Silesia and surroundings in the years 2002-2005. The research focused on occurrence of threatened and rare pondweed communities. As the result of the investigations of several dozen of water bodies, 28 localities of rare pondweed communities were documented by 75 phytosociological relevés. Associations of Potametum trichoidis J. et R Tx. in R. Tx. 1965, Potametum praelongi Sauer 1937, P. alpini Br.-Bl. 1949, P. acutifolii Segal 1961, P. obtusifolii (Carst. 1954) Segal 1965 and P. perfoliati W. Koch 1926 em. Pass. 1964 were found as well as communities formed by Potamogeton berchtoldii, P. nodosus and P. pusillus. The study confirms that anthropogenic reservoirs could serve as last refugees for many threatened pondweed communities, which decline or even extinct in their natural habitats. The results indicate that man-made habitats could shift the range limits of threatened species and support their dispersal. The authors conclude that habitats strongly transformed by man are important factors in the natural syntaxonomical diversity protection and should not be omitted in strategies of nature conservation.

4

Bidentetum cernuae (Kobendza 1948) Slavnić 1951 w zbiornikach zaporowych na Śląsku Opolskim

67%

Spalek K.

Acta Botanica Silesiaca

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2008

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tom 03

This paper presents the environmental conditions, floristic structure and distribution of the Bidentetum cernuae association from the Bidentetea tripartitae class within 3 dammed reservoirs in Opole Silesia (SW Poland).

5

Ranunculo-Callitrichetum hamulatae Oberd. 1957 em. Mull. 1977 w kanałach hutniczych na Śląsku Opolskim

51%

Spalek K.

Acta Botanica Silesiaca

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2011

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tom 07

This paper presents the environmental conditions, floristic structure and distribution of the Ranunculo-Callitrichetum hamulatae Oberd. 1957 em. Müll. 1977 from the Potametea R. Tx. et Prsg. 1942 class in the four metallurgic canals in the Opole Silesia (SW Poland).

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Występowanie Bupleurum rotundifolium L. (Apiaceae) na Śląsku Opolskim

51%

Nowak S., Nowak A.

Acta Botanica Silesiaca

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2009

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tom 04

Bupleurum rotundifolium is one of the rarest vascular plants in Opole Silesia. It belongs to the critically endangered species in the region. The taxon has not been confirmed for last few decades, so the described location is the only existing population of Bupleurum rotundifolium within Opolskie voivodeship. The existing population consists of about 250 individuals growing in crops on calcareous substrate and demands special conservation means.

Ograniczanie wyników

3 Acta Botanica Silesiaca

2 Acta Societatis Botanicorum Poloniae

1 Fragmenta Floristica et Geobotanica

2 Nowak A.

2 Nowak S.

2 Spalek K.

1 Czerniawska-Kusza I.

1 Lesnianski G.

1 Zelazna-Wieczorek J.

1 2011

1 2009

1 2008

1 2007

1 2002

1 1999

Vaucheria species from selected regions in Poland

The lichen collection from Opole Silesia [Poland] housed in the Wroclaw University Herbarium

Rare and threatened pondweed communities in anthropogenic water bodies of Opole Silesia [SW Poland]

Bidentetum cernuae (Kobendza 1948) Slavnić 1951 w zbiornikach zaporowych na Śląsku Opolskim

Ranunculo-Callitrichetum hamulatae Oberd. 1957 em. Mull. 1977 w kanałach hutniczych na Śląsku Opolskim

Występowanie Bupleurum rotundifolium L. (Apiaceae) na Śląsku Opolskim