Publications by authors named "Iwona Ruczynska"

Article Synopsis
  • Carnivores like the red fox show weak genetic structure across large areas, complicating the tracking of their post-glacial movement patterns.
  • This study utilized genome-wide data from 524 red foxes to explore variations and genetic mixing across European populations, revealing important refugial areas and endemism, particularly in Spain.
  • The research also tested various recolonization scenarios post-Last Glacial Maximum, concluding that natural colonization of Ireland was more plausible than human introduction, suggesting a richer mammalian community on the island during the early post-glacial era.
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Sparganosis is a zoonosis caused by the spargana (larvae) of Spirometra sp. (Diphyllobothriidae). Reptiles are particularly important vectors for the transmission of this parasite in Asia; however, their role in sparganosis spread in European wildlife is unrecognized.

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The Eurasian lynx (Lynx lynx) is a strictly protected species of large carnivore in Poland. It inhabits forest complexes in north-eastern Poland and the Carpathian region in southern Poland. The status of the lynx within Poland requires special attention because its range decreased between 1980 and 2001 and has not yet recovered.

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From February to March 2016 we found plerocercoids of Spirometra sp. in four wild boar hunted in Białowieża Primeval Forest, north-eastern Poland. Plerocercoids were located subcutaneously and in muscle tissue.

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The red fox () has the widest global distribution among terrestrial carnivore species, occupying most of the Northern Hemisphere in its native range. Because it carries diseases that can be transmitted to humans and domestic animals, it is important to gather information about their movements and dispersal in their natural habitat but it is difficult to do so at a broad scale with trapping and telemetry. In this study, we have described the genetic diversity and structure of red fox populations in six areas of north-eastern Poland, based on samples collected from 2002-2003.

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After observing the nonspecific expression of the alpha S1 casein gene in peripheral blood mononuclear cells of goats, we continued to trace illegitimate gene-expression patterns in mammals. Six mammalian species (Bos taurus, Capra hircus, Ovis aries, Equus caballus, Sus scrofa, and Bison bonasus) were analyzed for the presence of kappa casein in peripheral blood mononuclear cells and Ficoll-isolated lymphocytes. To detect potential relationships between the expression pattern and reproductive status of the individual, the animals within species represented different sex, age, and physiological status (immature and reproducing males; immature, pregnant, lactating, and sterile females).

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