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Zróżnicowanie i dynamika roślinności na terenie Stacji Bazowej Zintegrowanego Monitoringu Środowiska Przyrodniczego w Szymbarku (Beskid Niski)

Salachna Anna

Inżynieria Ekologiczna

2020

Vol. 21, nr 4

10--19

W pracy przedstawiono wyniki badań roślinności, przeprowadzone na terenie Stacji Bazowej Monitoringu Zintegrowanego Środowiska Przyrodniczego w Szymbarku. W celu oceny tendencji dynamicznych wyróżnionych zbiorowisk roślinnych porównano dane fitosocjologiczne z 1995 i 2011 roku. Analiza DCA oraz wielozmienna analiza wariancji PERMANOVA wykazały brak istotnych statystycznie różnic w składzie gatunkowym porównywanych fitocenoz w badanym okresie. Za pomocą testu Wilcoxona dla par wiązanych odnotowano natomiast istotne statystycznie różnice w wartościach średnich bogactwa gatunkowego oraz wskaźnika jednorodności gatunkowej Pielou. Największe przeobrażenia struktury stwierdzono w zespole rajgrasu wyniosłego Arrenatheretum elatioris Br.-Bl. ex Scherr. 1925, co wynika z dużej wrażliwości tej fitocenozy na zmiany parametrów środowiskowych oraz sposobu użytkowania.

The paper presents the results of vegetation research carried out in the Base Station of Integrated Monitoring of Natural Environment area in Szymbark. In order to assess the dynamic trends of the distinguished plant communities phytosociological data from 1995 and 2011 were compared. The DCA analysis and the multivariate PERMANOVA analysis of variance showed no statistically significant differences in the species composition of the compared phytocoenoses in the period 1995–2011. Using the Wilcoxon signed-rank test, statistically significant differences were noted in the mean values of species richness and the Pielou species homogeneity index. The greatest transformations in the structure were found in the Arrenatheretum elatioris association, which results from the high sensitivity of this phytocoenosis to changes in environmental parameters and the way of use.

The Influence of Geotextiles Stabilizing the Soil on Vegetation of Post-Excavation Slopes and Drainage Ditches

Kobiela-Mendrek Katarzyna, Salachna Anna, Chmura Damian, Klama Henryk, Broda Jan

Journal of Ecological Engineering

2019

Vol. 20, nr 1

125--131

The paper presents preliminary results of the studies concerning influence of geotextiles stabilizing the soil on vegetation of post-excavation slopes and drainage ditches. Analyzed anthropogenic habitats are situated in Międzyrzecze and Nieboczowy (Silesian Province, Southhern Poland). They have been previously subjected to reclamation treatment, consisting in installation of wool and synthetic geotextiles in the ground. The studies on plant community were conducted according to commonly applied Braun-Blanquet approach. Recorded phytocenosis were classified into Molinio-Arrhenatheretea R. Tx.1937 and Stellarietea mediae R. Tx., Lohm. et Prsg.1950 class. For comparison of plant patches growing on two variants of geotextiles Hierarchical Cluster Analysis was used. Moreover, the number of species (S), Shannon-Wiener index (H), evenness index (J) and average heights of herbal layer were calculated. It has been shown, that the type of geotextiles has a slight influence on the variability of investigated plant patches. However, relatively high differences in total coverage and mean height of herbal layer between plots protected and unprotected were observed. It shows that the geotextiles support the process of natural ecological succession on habitats with high inclination, mainly through water retention and reduction of erosion.

Are beetles good indicators of insect diversity in freshwater lakes?

Pakulnicka J., Buczyńska E., Buczyński P., Czachorowski S., Kurzątkowska A., Lewandowski K., Stryjecki R., Frelik A.

Oceanological and Hydrobiological Studies

2015

Vol. 44, No. 4

487--499

The study verifies the usefulness of aquatic beetles as an indicator of biodiversity of a simple ecological system. Detailed analyses were carried out at the elementary level for the purpose of determining the significance of correlations between the biodiversity of Coleoptera and other groups of aquatic insects in single samples. The relation of selected taxa to selected habitats of the lake Wukśniki (north-eastern Poland) was also investigated. Moreover, the possibility of application of biodiversity surrogates, i.e. higher taxonomic units (genera and orders), in the determination of biodiversity was examined. A significant high correlation was determined between Coleoptera and the total remaining taxa (RR – Remaining Richness) in samples collected in the entire lake. The correlation has the highest value at the species level. The complementarity analysis reveals that the percentage contribution of Coleoptera in the overall biodiversity of the lake is similarly high at the species and genus level, and substantially lower at the family level. In accordance with the hypothesis, aquatic beetles can be used as indicators of the overall biodiversity of insects in the ecosystem of a mesotrophic lake. Biodiversity surrogates, i.e. higher taxonomic units (genera and families), can be applied instead of the species level.