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A growing body of evidence suggests trophic generalism (feeding on resources from more than one trophic level and/or on different resources of the same trophic level) is a widespread feature among ground beetles (Coleoptera: Carabidae). However, it remains unclear whether trophic generalism applies to single individuals, at the intrapopulation or interpopulation level. Here we present stable isotope data (δ15N, δ13C) of seven common European carabid species on an archipelago of 18 lake islands in northeastern Poland. We found strong differences in isotopic ratios between individuals of the same population as well as between different populations, indicating that carabids are opportunistic feeders and that the degree of opportunism differs between habitats and between islands. Trophic niche breadth as assessed by isotopic ratios was influenced by local habitat diversity. We suggest that opportunistic usage of different local resources results in striking differences between local populations and a very broad trophic niche observed at regional level.

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INTRODUCTION. The 5-year population-based survival rate, next to cancer incidence and mortality, is a key element for the assessment of effective health care quality provided by OECD in order to establish the condition of health care and set up health care policies. They also apply when assessing breast and cervical cancer prevention in Poland. AIM. The aim of the paper was to analyse the breast and cervical cancer survival in women in Poland in 2010-2014 and its changes in 2000-2014 in comparison to other European countries. RESULTS. The analysis of the 5-year survival rate was performed with the CONCORD-3 programme data. In order to guarantee the comparability of results, the uniform standards for data quality control, all calculations and analyses were performed by a world-leading centre for research, The London School of Hygiene and Tropical Medicine. The absolute value of the survival rate was used to assess survival variations in 2000-2004 and 2010-2014. In 2010-2014 the highest 5-year survival rate in women with breast cancer was in Island (89%), Sweden (89%), Finland (89%) and Norway (88%). Despite its systematic improvement, the 5-year survival rate in Poland was lower than in the majority of European countries, and in the final period amounted to 76,6%. In 2010-2014 the highest survival in women with cervical cancer in Europe was in Island (80%), Norway (73%) and Switzerland (71%). The progress of favourable changes in Poland was not sufficient enough to allow the survival rate (55%) to be significantly closer to the European average. CONCLUSIONS. The 5-year survival rate for breast and cervical cancer in Poland in 2010-2014 was significantly different than in other European countries, and placed Poland among the countries with the lowest survival rate. In 2000-2014 in Poland there was an insignificant progress in survival in women with breast and cervical cancer, which did not contribute to fighting the substantial differences when compared to other European countries.

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