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PL
W artykule przedstawiono szczególną lokalizację Kopalni Wapienia „Czatkowice” sp. z o.o. względem obszarów chronionych, w tym Natura 2000, utworzonych dla ochrony siedlisk i gatunków nietoperzy. Opisano działania prewencyjne, które wykonano przed rozpoczęciem eksploatacji wapienia w obszarze nowej koncesji, i te podejmowane na bieżąco w celu ochrony chiropterofauny. Dokonano porównania wyników monitoringu liczebności populacji nietoperzy dla uchwycenia ewentualnego wpływu na nią odkrywkowej eksploatacji górniczej. Przedstawiono wyniki dodatkowych niż wymagane badań monitoringowych, prowadzonych we wczesnej fazie realizacji inwestycji.
EN
Kopalnia Wapienia „Czatkowice” sp. z o.o. carries out concession activities in protected areas and in the vicinity of Natura 2000 areas that were created for the protection of bats. Monitoring carried out by a chiropterologist on behalf of the company indicates that the number of hibernating bats in nearby caves has been increasing. Also, no deterioration in any of the state parameters of wintering areas has been observed. The monitoring results of the reproductive colonies and summer hiding-places show no decline in number or deterioration in the quality of habitats. Additionally, in relation to the implementation of investment projects in woodlands, in order to compensate for loss of summer feeding grounds and migration corridors, the company has created a wide forest belt. Previous studies have shown no negative impact of mining activities in Czatkowice on the bat fauna. The studies will be continued in order to identify possible, adverse changes in the size of population and the condition of bat habitats, and to take corrective action.
EN
Numbers of wintering Natterer's bats Myotis nattereri (Kuhl, 1817) and Daubenton's bats M. daubentonii (Kuhl, 1817) were monitored at seven study sites (three single large hibernacula and four groups of roosts) in central Poland. The longest monitoring period was 1987-2009, the shortest - 1999-2009. The aim of the study was to find out if the numbers of the two species are stable, or if any trends could be detected. For most of the study period, bats were counted twice during each hibernation season: in autumn (November/December) and in winter (January/February). The numbers of Natterer's bats show a strong increase all over the study area - a trend similar to that reported earlier from other parts of the country. Daubenton's bats, on the other hand, declined in the hibernacula located in the north-eastern part of the study area, while in those located in the south-western part their numbers were stable or even slightly increased. A decrease in the numbers of Daubenton's bats is in contrast with reports from other hibernacula in Poland and elsewhere in Europe, where the species increases in numbers. The changes in the numbers of both studied species could be explained by neither changes in the hibernacula nor weather conditions during the study period, so our results probably reflect changes in the numbers of local populations.
EN
The breeding populations of the Skylark Alauda arvensis, Yellowhammer Emberiza citrinella, Corn Bunting Miliaria calandra, Yellow Wagtail Motacilla flava, Whinchat Saxicola rubetra, and Red-backed Shrike Lanius collurio were censused by the mapping method on 315 ha of intensive farmland in W Poland. Results obtained in 2006 and 2007 were compared with previously published data from 1987 to 1997. Changes in habitat structure, mainly the decline of margin habitats, and the intensification of agricultural production, which both occurred between the two study periods, affected breeding bird populations; M. flava showed drastic long-term decreasing trends, and M. calandra increased significantly in number. The other four species showed yearto-year variation rather than directional trends. Numbers of A. arvensis declined from 1987 to the late 1990s and subsequently increased. Generally, population trends of the studied species were similar to those in other long-term study plots in Poland but differed from trends in Western Europe.
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