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Actual State and Changes of Flora and Vegetation in the Broczówka Steppe Reserve

100%

Cwener A. , Nowak M.

Acta Universitatis Lodziensis. Folia Biologica et Oecologica

2011

tom 7

163-176

This paper presents floristic characterization of xerothermic plant associations and analysis of changes of flora within Broczówka steppe reserve. The floristic research was carried out in 2004-2009. Numerous species that were noted here almost 30 years ago were not found in the present study, the size of other populations decreased. Nevertheless, many plant species occurring in the reserve are rare, endangered or protected. Six major plant associations, impoverished form of two ones and one plant community are distinguished in the whole area of the reserve. Occurrence of two plant associations was not confirmed.

Estimate of density and diversity of Apoidea [Hymenoptera] in steppe reserve 'Zbocza Plutowskie' on the lower Vistula River

75%

Banaszak J. , Cierzniak T.

Polskie Pismo Entomologiczne

1994

tom 63

nr 3-4

Chrysophyte stomatocysts from gypsum damp vegetation in Southern Poland

63%

Piatek J. , Piatek M.

Polish Botanical Journal

2008

tom 53

nr 1

57-67

Seslerio uliginosae-Scorzoneretum purpureae (Festuco-Brometea class) in the Nida Basin (Malopolska Upland) after 90 years

51%

Towpasz K. , Stachurska-Swakon A.

Acta Societatis Botanicorum Poloniae

2012

tom 81

nr 3

Seslerio uliginosae-Scorzoneretum purpureae is the only xerothermic community of the Festuco-Brometea class, where a rare species known as Sesleria uliginosa occurs in Poland. A couple of sites hosting this association in the Nida Basin were described in the 1920s and 1950s. All these stands are now situated in the areas designated as xerothermic nature reserves. The study aimed at describing the present-day characteristics of this rare association, the most likely being endemic in Poland, as well as the changes that have occurred in it. The species diversity and the contribution of xerothermic plants have decreased significantly in terms of their number and cover coefficient. Some of the diagnostic species of the association have become extremely rare. Sesleria uliginosa is the only one without visible changes in their dominant position in the community. Mosses, that have played a significant role before, were among the vanished species. At the same time, an increase in number and cover of mesophilous meadows species was observed. Mesophilous grasses belong to the group of species growing in significance in the phytocoenoses. The observed changes in species composition were reflected in a statistically significant increase of nitrogen indicator value. The slow process of succession observed in the Seslerio-Scorzoneretum purpureae could be attributed to the lack of appropriate land use, e.g. mowing and grazing that have been ceased in the nature reserves.

Fitosocjologia a przestrzenna ochrona przyrody w Polsce

26%

Celinski F. , Denisiuk Z.

Acta Biologica Silesiana

1989

tom 12