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The aims of the paper are to present a list of vascular plants of the Wzgórza Łomnickie Hills (the Sudety Mts., SW Poland) and to explain the nature and consequences of main antropogenic and biogeographic influences on local flora. The detailed field exploration yielded a list of 585 species. Supplemented by both published sources and observations after 1980, the total number of vascular plant species reached the number of 615. To understand the essence of anthropogenic transformations of the local flora I examined biological spectrum of life forms, distribution type and groups of synanthropic plant contributions. The analysis shows qualitative and quantitative changes of flora composition. Non-indigenous species constitute 18.70% of total. The proportion among life form groups has changed and is being influenced by different types of human activity. The comparision of the local floras within similar regions in the Sudety Mts. revealed transformations in the contribution of different taxonomic units. It is the effect of the presence of numerous alien plants (e.g. non-indigenous species respectively constitute 40.7% and 20% of Brassicaceae and Scrophulariaceae) as well as a particular type of land usage (ponds development has considerably increased the percentage of Cyperaceae).
A survey was carried out on the vascular flora of monandocks used for rock climbing in the Mirowskie Skały in the Krakowsko-Częstochowska Upland. The flora along six routes of varying degrees of difficulty was analyzed and compared to that of a control route that was rarely used for rock climbing. The study indicates that it is necessary to control tourism and rock climbing in the Kraków-Czestochowa Jura in order to reduce its negative impact on species diversity in the vascular flora found on rock surfaces.
The paper presents spatial variation in floristic indices in the mediumsize valley of the San River. Indices of species richness and synanthropization rates were calculated for 366 1 x 1 km cartogram squares. The Spearman rank correlation coefficient was used to analyze the relationships between individual indices. Species richness in individual basic plots ranges from 102 to 391, with a mean of 248. The share of anthropophytes ranges from 0.9% to 35.5% , with a mean of 18.1%. In general, the flora of the present valley floor is characterized by a higher species richness and a higher anthropophytization rate than glacial terrace. There was a positive correlation between species richness and the number of anthropophytes present, but no correlation between species richness and the anthropophytization rate. In individual basic plots, their values can be very divergent.
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W pracy przedstawiono porównawcze wyniki badań florystycznych dwóch odcinków doliny rzeki Warty położonej w województwie lubuskim: rezerwatu „Zakole Santockie” na lewym brzegu (o powierzchni 150 ha) oraz doliny pomiędzy wsiami Santok a Starym Polichno w części prawobrzeżnej (o powierzchni 15 ha). Na prawym brzegu rzeki badania przeprowadzono w latach 2003 - 2005, a dokumentację części lewobrzeżnej wykonał Janyszek w 1993 roku. Flora rezerwatu okazała się bardziej różnorodną (314 gatunków). Na obu obszarach stwierdzono 345 gatunków głównie siedlisk łąkowych i związanych z wodą oraz ruderalnych i segetalnych (chociaż wskaźnik synantropizacji był niski). Na obu terenach dominowały byliny, szczególnie gatunki rodzime, trwałe i będące pod zasięgiem jednego obszaru geograficznego.
The paper presents results of floristic research on vascular plants in the abandoned limestone quarry in Tyniec. Altogether, 104 species representing 26 families were found. The species composition of the plant communities in the quarry was characteristic of dry grassland and meadow communities. The degree of synanthropization was 97.1%. Carlina acaulis was the only protected species found in the quarry.
The paper presents the current flora of vascular plants of selected spoil heaps and sedimentation tanks of two coal mines in Wałbrzych.
The paper describes the flora and plant communities of the nature reserve “Uroczysko Obiszów” on Wzgórza Dalkowskie Hills (Wzgórza Trzebnicko- Ostrzeszowskie Hills, Lower Silesia). A full index of plants recorded in the reserve comprises 217 species. The most interesting include Epipactis albensis and five montane species: Senecio fuchsii, Dryopteris dilatata, Sambucus racemosa, Prenanthes purpurea,Valeriana sambucifolia. Lycopodium annotinum, which was noted in 1973 is extinct. Four plant communities occur here, i.e. oak-hornbeam forest (Galio sylvatici- Carpinetum), alder forest (Fraxino-Alnetum), soft water streams’ community of Caricetum remotae and grass-sedges community with Carex acutiformis. The oak-horbnbeamforest, which covers about 90% of an area, is very well preserved and is the most valuable community in the reserve “Uroczysko Obiszów”.
The paper describes the vascular flora and plant communities of the Łacha Farna Old River-bed area of ecological use which is situated in Wrocław city (SW Poland). The full list of recorded plants comprises 173 taxa. The most interesting plant is Ceratophyllum submersum (the rare species in Lower Silesia LC category). The vegetation is also strongly differential 41 plant communities belonging to 8 classes occur here. The two richest classes are: Phragmitetea australis and Artemisietea vulgaris (10 communities found for each). There is only locality of Ceratophylletum submersi association (Potametea class), never recorded earlier on the area and its vicinity. The paper also provides precise descriptions of the localities examined to be used later for all the subsequent comparisons to identify the directions of changes within the studied oxbow lake. The distribution of the analysed localities and protected species is shown as Fig. 1. All the features of the investigated area confirm that it should be protected by local authorities.
The paper presents results of investigations on interesting and close-to-natural habitats of the north-western part of Pogórze Izerskie Foothills. Only 59 well-preservedhabitats have been found. The forests (33 patches, 281,5 ha – including ca 230 ha of oak-hornbeam forests) andthe environments of rivers and lakes (12 patches, 295 ha) are the most common. Habitats of marshes, wet meadows, termophilous grasslands and ash-alder-willow forests are very rare.
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