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The use of habitats by one female moose Alces alces (Linnaeus, 1758) in a managed forest area was studied in 1993-1994. The home range area for the whole year 1993 was 4154 ha (the 90% minimum convex polygon). The area used during January-April in the first winter was 1888 ha (71% of the summer range in May-August). The core area (50% adaptive kernel) was 408 ha (9.8% of home range) in 1993. Forested peatlands were relatively intensively used by the moose. The old and middle-aged forests were used heavily up until the autumn. In the second winter with thicker snow cover the home range was smaller and the use of available habitats more uniform. The characteristics of stands used in the core area did not differ significantly from the average for the whole area. The availability of food was relatively high even in the old-forest habitats due to the forest edges rich in saplings, particularly in the vicinity of peatland. The moose fed mainly on highly available birch and used more Scots pine in the second winter. The availability of palatable saplings, dwarf shrubs and herbaceous plants appear to have seasonal importance in habitat selection. The tops of recently felled trees were utilized for periods lasting for several days. By combining the basic ecological elements, dynamic factors and effects of browsing, the habitat analyses could probably be useful for management planning in moose areas.
We tested whether the perceptual range of male root voles Microtus oeconomus (Pallas, 1776) could be determined by visual objects in the landscape. This was done by giving single mates the choice between three different sized visual cardboard patches randomly arranged around the perimeter of a circle located in agricultural fields. Effects of distance were tested by varying the diameter of the circle. The root voles were able to orient towards patches, but did not choose patches relative to their size. The ability to orient towards patches decreased with increasing distance between the release point and the patches.
Scale-dependency is one of the well-known features of ecological boundaries. Unfortunately, there are relatively few case studies analysing boundaries of different scales. Moreover, properties of moving split window (MSW) technique, a method potentially suitable for examining boundaries at several spatial scales, are not fully understood. In this study, we used artificial data sets to test the capacities and limitations of the MSW method. We also applied field data from the Mecsek Mts (Hungary) (611 m a.s.l.) in order to reveal possible boundaries at different scales and to contribute to the knowledge on vegetation pattern of mountain areas. We found that one should apply several window-widths when using MSW, since this is the only way to detect and differentiate between boundaries of different scales. Our study revealed the vegetation pattern of Mt Tubes: there is a series of continuously intergrading mesic communities on the northern slope, while the southern slope is occupied by a mosaic of different xeric communities. In this pattern, boundaries of two different scales have been identified. We conclude that MSW could effectively be used in similar mountain regions to analyse herb layer vegetation patterns and boundaries.
The paper presents the results of studies devoted to woody species composition in three types of mid-field woodlots (N = 183), located on the area of 5480 ha in the intensively managed agricultural landscape of Wrocław Plain (Lower Silesia, south-western Poland). The woodlots studied were divided into mid-field clumps (n = 74), water-edge hedgerows (n = 75) and avenues (n = 34). In general, in the three types of woodlots 77 woody plant species were found. To the most common species (50% frequency in all the woodlots) belonged: elder (Sambucus nigra), single-neck hawthorn (Crataegus monogyna), blackberry (Rubus spp.) and blackthorn (Prunus spinosa). For 21 species, statistically significant differences between frequency of occurrence in water-edge hedgerows and clumps were found. Ten species differed in frequency of occurrence between water-edge hedgerows and avenues. Differences between clumps and avenues were documented for 15 species. No significant differences were found in the occurrence of species dispersed by wind, animals and water, and between native species and those of foreign origin, in the respective types of woodlots. For the three types of woodlots studied, high statistically significant correlations were found between the size of woodlots (length for water-edge hedgerows and avenues, and area for mid-field clumps) and the number of recorded woody species. Based on the results obtained and literature data the mechanisms of the floristic diversity of mid-field woodlots were discussed.
Intense changes in the land use of lake catchment basins in the Polesie Lubelskie region (E. Poland), observed over the last decades, have a strong, significant effect on the functioning of lakes and wetlands in the landscape. One of the methods of investigating these changes is analysis of the network of land use boundaries. The studies included 11 basins of lakes located in 3 neighboring river valleys. Basing on the analysis of air photographs from the years 1952 through 1992, 55 types of land use boundaries (transitional zones) had been identified in that region. The changes, which had taken place during this period, related to the features like: character of the transitional zones, density of their network and size of the patches were also examined. Most stable and most transformed areas were pointed out. Suggestions concerning directions and methods of environmental protection in that region were formulated.
The major point for Lacar Demosite (LDS) is the sustainable management of a representative basin of Andean Patagonian region where the main problem is the impact of land transformation on water quality and environmental services. The aim of the LDS is the reduction of soil erosion, the mitigation of floods in urban areas and the improvement of ecosystem services, based on Ecohydrological ideas and principles, and using phytotechnologies. Advances are presented for LDS showing that regulation of surface hydrology (water runoff; nutrients and sediments loads) at the watershed scale, through land use, vegetation cover and phytotechnologies, improve the aquatic ecological processes and the ecosystems services (water quality, landscape aesthetic values).
Non-forest woody vegetation (scattered greenery) is currently a common feature of the rural European landscape and provides important ecosystem services. This study presents the statistically based classification of non-forest woody vegetation at the local level according to its structural characteristics mapped in the field. Using hierarchical agglomerative cluster analysis, four groups (clusters) of non-forest woody vegetation were detected. Relation of groups of non-forest woody vegetation to altitude, slope gradient and distance from settlements was found, although differences in these factors between groups are small. Moreover, differences in spatial structure in terms of landscape ecology among groups of non-forest woody vegetation were examined and considerable differences among groups were recognized when comparing basic landscape metrics. Presented classification covers unique local or sub-regional groups of non-forest woody vegetation, but it is not sufficient for the national level. For this purpose, it is advocate advised that additional data be collected and official evidence of existing non-forest woody vegetation be generated.
The analysis of the area of the municipality of Tu oro sul Trasimeno in Umbria, Central Italy (the historical site of the Battle of Trasimeno in 217 BC) was carried out to evaluate changes in land use from 1977 to 2000 at the land-plot level using relevant land use maps. An evaluation of the environmental quality of land use in 2000 was also made. The study involved an analysis of the environmental diversity in terms of extent and variety of land use. The Landscape Conservation Index (ILC), and diversity indicators (Shannon-Wiener Index and Eveness Index) were calculated. The study showed how landscape quality gradually declined due to an increase in agricultural areas to the detriment of natural areas. The calculation of environmental indicators, particularly the Eveness Index showed how the difference between real and potential diversity increased, in favour of real diversity. This is a symptom of increased human pressure.
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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