Search results for: M. Ćmiel

Items from 1 to 15 out of 15 results

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Interactive effects of arrival date, territory quality and male polyterritorial behaviour on the mating system of the sedge warbler Acrocephalus schoenobaenus: a path analysis

Wojciech Bielański, Adam M. Ćmiel, Tadeusz A. Zając

Journal of Avian Biology > 2022 > 11-12 > n/a - n/a

Classical models predict that male fitness is based on resources monopolized and invested in reproduction, and/or on individual quality providing offspring with sexually attractive traits or viable genes. However, these factors are frequently correlated, making their relative influence on male fitness difficult to describe and quantify. We analysed the relative influence of the main features of the...

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The Role of Microhabitat and Water Level in Regulating the Small-Scale Distribution, Seasonal Abundance and Overwintering Success of the Protected Snail Vertigo moulinsiana in a Natural Wetland

Anna M. Lipińska, Adam M. Ćmiel, Dorota Kwaśna, Stanisław Myzyk, more

Polish Journal of Ecology > 2020 > Vol. 68, nr 3 > 229--241

Despite the high taxonomic diversity, wide distribution and important ecosystem functions of snails, their ecology remains obscure, and this can hamper their conservation. Overwintering in the studied population of Vertigo moulinsiana is effective enough to allow the majority of it to survive. The population dynamics of V. moulinsiana is specific, where the summer boom in a suboptimal habitat covering...

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Dobór gruntu na warstwy przejściowe w zaporach ziemnych na przykładzie zapory Świnna Poręba

Z. Skutnik, M. Cmiel

Acta Scientiarum Polonorum. Architectura > 2020 > 19 > 3

W artykule przedstawiono rozważania na temat zasad doboru gruntu na warstwy przejściowe w zaporach ziemnych, które pełnią również funkcję filtrów odwrotnych. Skupiono się na rozpoznaniu zjawisk związanych z filtracją, w szczególności erozją wewnętrzną budowli ziemnych oraz skutecznymi metodami jej przeciwdziałania. Dokonano analizy najczęściej stosowanych zasad i kryteriów doboru gruntów na warstwy...

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Is Pseudanodonta complanata the most vulnerable of widespread European species of unionids? An intense stress test leading to a massive die‐off

Adam M. Ćmiel, Katarzyna Zając, Anna M. Lipińska, Tadeusz Zając

Aquatic Conservation: Marine and Freshwater Ecosystems > 29 > 12 > 2185 - 2192

This article reports a large‐scale die‐off of approximately one‐third of the unionid mussels inhabiting a shallow, naturally eutrophic, floodplain lake (Zalew Pińczowski), which took place within the space of just a few days. Mortality was the highest in Pseudanodonta complanata (81%), followed by Unio pictorum (58%), Anodonta cygnea (26%), Unio tumidus (15%), and Anodonta anatina (5%). It was significantly...

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Intraseasonal asynchrony as a factor boosting isolation within a metapopulation: The case of the clouded apollo

Paweł Adamski, Adam M. Ćmiel, Anna M. Lipińska

Insect Science > 26 > 5 > 911 - 922

This article discusses the influence of phenology‐related intraseasonal asynchrony on metapopulation dynamics and stability. As the part played by intraseasonal asynchrony is as yet unclear and poorly described, greater account of it should be taken in both metapopulation research and conservation practice. The subpopulations of the Parnassius mnemosyne metapopulation studied here are strongly isolated...

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Dispersal and mortality of translocated thick‐shelled river mussel Unio crassus Philipsson, 1788 adults revealed by radio tracking

Katarzyna Zając, Tadeusz A. Zając, Paweł Adamski, Wojciech Bielański, more

Aquatic Conservation: Marine and Freshwater Ecosystems > 29 > 3 > 331 - 340

Freshwater mussels are one of the most endangered groups of animals. Translocation is a common conservation measure for protecting them, but the success of this procedure varies widely, and the reasons for failure are frequently unknown. The dispersal and mortality of freshwater mussels was studied using a novel method: the radio tracking of Unio crassus translocated to new sites during a reintroduction...

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Habitat use of the Aesculapian snake at different spatial scales

Katarzyna Kurek, Wiesław Król, Kamil Najberek, Adam M. Ćmiel, more

The Journal of Wildlife Management > 82 > 8 > 1746 - 1755

At their range limits, animal populations are often small and endangered. Moreover, they may use habitats in different ways than core populations, making the determination of habitat requirements an important aspect for effective long‐term conservation of these populations. We assessed habitat requirements of the Aesculapian snake (Zamenis longissimus) in an isolated population at the northern limits...

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Glochidial infestation of fish by the endangered thick‐shelled river mussel Unio crassus

Adam M. Ćmiel, Katarzyna Zając, Anna M. Lipińska, Tadeusz Zając

Aquatic Conservation: Marine and Freshwater Ecosystems > 28 > 3 > 535 - 544

Freshwater mussels (Unionoida) are globally threatened. The key to the development of effective conservation strategies for this group is to unravel their complicated life cycle, including the obligatory larva, which parasitizes the external tissues of fish. Artificial infestation was conducted for three fish species – Barbus barbus, Chondrostoma nasus, and Squalius cephalus – in order to study...

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On the reintroduction of the endangered thick-shelled river mussel Unio crassus: The importance of the river's longitudinal profile

Katarzyna Zając, Jacek Florek, Tadeusz Zając, Paweł Adamski, more

Science of The Total Environment > 2018 > 624 > C > 273-282

Freshwater mussels of the order Unionida provide important ecosystem functions and services. Unfortunately, some previously widespread species are now seriously endangered. To restore the historical range of the population of Unio crassus in the Biała River, southern Poland, the species was reintroduced into a series of ‘stepping stones’ joining two remnant populations. During the first phase of the...

article

Transformation Diagrams of Selected Steel Grades with Consideration of Deformation Effect

R. Kawulok, I. Schindler, J. Mizera, P. Kawulok, more

Archives of Metallurgy and Materials > 2018 > Vol. 63, iss. 1 > 55--60

The aim of this article was to assess the effect of previous plastic deformation on the transformation kinetics of selected steels with a wide range of chemical composition. Transformation (CCT and DCCT) diagrams were constructed on the basis of dilatometric tests on the plastometer Gleeble 3800 and metallographic analyses supplemented by measurements of HV hardness. Effect of previous deformation...

article

The Influence of a Cooling Rate on the Evolution of Microstructure and Hardness of the Steel 27MnCrB5

P. Kawulok, I. Schindler, J. Mizera, R. Kawulok, more

Archives of Metallurgy and Materials > 2018 > Vol. 63, iss. 2 > 907--914

The aim of the performed experiments was to determine the influence of a cooling rate on the evolution of microstructure and hardness of the steel 27MnCrB5. By using dilatometric tests performed on the plastometer Gleeble 3800 and by using mathematical modelling in the software QTSteel a continuous cooling transformation diagram for a heating temperature of 850°C was constructed. Conformity of diagrams...

article

Changes in Distribution of Aesculapian Snake and Implications for Its Active Conservation in Poland

K. Kurek, K. Najberek, B. Zając, S. Bury, more

Polish Journal of Ecology > 2017 > Vol. 65, nr 4 > 422--431

In Poland, the Aesculapian snake, critically endangered at the edge of its European range, inhabits the lower parts of the Bieszczady Mts. in the SE of the country. This research, carried out between 2009 and 2014, included fieldwork in areas selected on the basis of historical literature data and the results of interviews. 51 breeding mounds were deployed at historical and potential sites of this...

article

The endangered thick-shelled river mussel (Unio crassus): a new host species for the European bitterling (Rhodeus amarus)

Krzysztof Tatoj, Adam M. Ćmiel, Dorota Kwaśna, Anna M. Lipińska, more

Biodiversity and Conservation > 2017 > 26 > 5 > 1217-1224

Large freshwater mussels (Unionoida) are declining throughout the world. The European bitterling Rhodeus amarus (Bloch, 1782) female spawns its eggs inside the unionids’ shells, where fertilisation and further embryonic development take place; thus its reproduction depends fully on the presence of large freshwater mussels. Unio crassus, previously regarded as one of the most numerous unionids in Europe,...

article

Ocena stanu troficznego wód zbiornika zaporowego Wapienica

E. Jachniak, M. Holubčík, M. Ćmiel, K. Gazda

Inżynieria Ekologiczna > 2015 > Nr 41 > 181--187

W artykule określono poziom trofii wód zbiornika zaporowego Wapienica na podstawie składu gatunkowego oraz biomasy glonów planktonowych, a także stężeń chlorofilu a. Badania prowadzono w sezonie wegetacyjnym 2013 r.; próby pobierano z dwóch stanowisk badawczych (W1 – rejon ujścia rzeki Wapienicy do zbiornika oraz W2 – rejon zapory) za pomocą batometru. Całkowita biomasa glonów oraz koncentracja chlorofilu...

article

Hot forming parameters research of bearing steel

P. Gembalova, J. Boruta, E. Grycz, K. M. Cmiel

Archives of Civil and Mechanical Engineering > 2007 > Vol. 7, no 2 > 21-28

The paper deals with an analysis of the hot forming parameters of the bearing steel 100Cr6 according to CSN EN ISO 683-17, performed by means of the plastometer. Bearing steels belong to high carbon sleels, generally alloyed by chromium, Le. precipitation of carbides of type (FeCr)3C takes place. Uneven distribution of carbide phases, together with inclusions, deteriorates the resulting steel quality...

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